[DEBUG] 2022-05-30 09:27:50.266 [opendaylight-cluster-data-notification-dispatcher-44] NetconfTopologyImpl - Config for node Uri{_value=DCS:DCS:DCS-N9K-LEAF04} deleted
[DEBUG] 2022-05-30 09:27:50.266 [opendaylight-cluster-data-notification-dispatcher-44] AbstractNetconfTopology - Disconnecting RemoteDevice{DCS:DCS:DCS-N9K-LEAF04}
[TRACE] 2022-05-30 09:27:50.267 [opendaylight-cluster-data-notification-dispatcher-44] NetconfDeviceSalProvider - RemoteDevice{DCS:DCS:DCS-N9K-LEAF04}: Not removing TOPOLOGY mountpoint from MD-SAL, mountpoint was not registered yet
[TRACE] 2022-05-30 09:27:50.269 [opendaylight-cluster-data-notification-dispatcher-44] NetconfDeviceTopologyAdapter - RemoteDevice{DCS:DCS:DCS-N9K-LEAF04}: Close device state transaction DOM-CHAIN-79-1 removing all data started.
[TRACE] 2022-05-30 09:27:50.269 [opendaylight-cluster-data-notification-dispatcher-44] NetconfDeviceTopologyAdapter - RemoteDevice{DCS:DCS:DCS-N9K-LEAF04}: Close device state transaction DOM-CHAIN-79-1 removing all data ended.
[TRACE] 2022-05-30 09:27:50.269 [opendaylight-cluster-data-notification-dispatcher-44] NetconfDeviceSalProvider - RemoteDevice{DCS:DCS:DCS-N9K-LEAF04}: TransactionChain(org.opendaylight.mdsal.binding.dom.adapter.BindingDOMTransactionChainAdapter@7b6c02b7) SUCCESSFUL
[DEBUG] 2022-05-30 09:27:51.714 [nioEventLoopGroup-3-1] NetconfDeviceCommunicator - RemoteDevice{DCS:DCS:DCS-N9K-LEAF04}: Session established
[TRACE] 2022-05-30 09:27:51.714 [nioEventLoopGroup-3-1] NetconfDeviceCommunicator - RemoteDevice{DCS:DCS:DCS-N9K-LEAF04}: Session advertised capabilities: NetconfSessionPreferences{capabilities={urn:ietf:params:netconf:capability:notification:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:interleave:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:validate:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:confirmed-commit:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:candidate:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:rollback-on-error:1.0=DeviceAdvertised, urn:ietf:params:netconf:base:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:with-defaults:1.0?basic-mode=report-all=DeviceAdvertised, urn:ietf:params:netconf:base:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:writable-running:1.0=DeviceAdvertised}, moduleBasedCapabilities={(http://cisco.com/ns/yang/cisco-nx-os-device?revision=2021-06-10)Cisco-NX-OS-device=DeviceAdvertised}, rollback=true, monitoring=false, candidate=true, writableRunning=true}
[TRACE] 2022-05-30 09:27:51.714 [nioEventLoopGroup-3-1] NetconfSessionPreferences - capability urn:ietf:params:netconf:capability:notification:1.0 partially matches {urn:ietf:params:netconf:capability:notification:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:interleave:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:validate:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:confirmed-commit:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:candidate:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:rollback-on-error:1.0=DeviceAdvertised, urn:ietf:params:netconf:base:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:with-defaults:1.0?basic-mode=report-all=DeviceAdvertised, urn:ietf:params:netconf:base:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:writable-running:1.0=DeviceAdvertised}
[TRACE] 2022-05-30 09:27:51.715 [nioEventLoopGroup-3-1] NetconfSessionPreferences - capability urn:ietf:params:netconf:capability:notification:1.0 partially matches {urn:ietf:params:netconf:capability:notification:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:interleave:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:validate:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:confirmed-commit:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:candidate:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:rollback-on-error:1.0=DeviceAdvertised, urn:ietf:params:netconf:base:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:with-defaults:1.0?basic-mode=report-all=DeviceAdvertised, urn:ietf:params:netconf:base:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:writable-running:1.0=DeviceAdvertised}
[WARN ] 2022-05-30 09:27:51.716 [nioEventLoopGroup-3-1] AbstractNetconfSessionNegotiator - An exception occurred during negotiation with null on channel [id: 0x96623a56]
java.lang.IllegalStateException: complete already: NetconfSessionPromise@38d009ff(failure: java.lang.IllegalStateException: Cannot change state from FAILED to ESTABLISHED for channel [id: 0xcb9d86ca])
        at io.netty.util.concurrent.DefaultPromise.setFailure(DefaultPromise.java:112) ~[netty-common-4.1.69.Final.jar:4.1.69.Final]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.negotiationFailed(AbstractNetconfSessionNegotiator.java:285) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.channelRead(AbstractNetconfSessionNegotiator.java:325) ~[netconf-netty-util-2.0.14.jar:?]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:61) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:370) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:469) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at java.lang.Thread.run(Thread.java:829) [?:?]
Caused by: java.lang.IllegalStateException: complete already: NetconfSessionPromise@38d009ff(failure: java.lang.IllegalStateException: Cannot change state from FAILED to ESTABLISHED for channel [id: 0xcb9d86ca])
        at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:99) ~[netty-common-4.1.69.Final.jar:4.1.69.Final]
        at org.opendaylight.netconf.nettyutil.NetconfSessionPromise.setSuccess(NetconfSessionPromise.java:79) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.NetconfSessionPromise.setSuccess(NetconfSessionPromise.java:27) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.negotiationSuccessful(AbstractNetconfSessionNegotiator.java:279) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.client.NetconfClientSessionNegotiator.handleMessage(NetconfClientSessionNegotiator.java:93) ~[netconf-client-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.channelRead(AbstractNetconfSessionNegotiator.java:322) ~[netconf-netty-util-2.0.14.jar:?]
        ... 20 more
[WARN ] 2022-05-30 09:27:51.716 [nioEventLoopGroup-3-1] AbstractChannelHandlerContext - An exception 'java.lang.IllegalStateException: complete already: NetconfSessionPromise@38d009ff(failure: java.lang.IllegalStateException: Cannot change state from FAILED to ESTABLISHED for channel [id: 0xcb9d86ca])' [enable DEBUG level for full stacktrace] was thrown by a user handler's exceptionCaught() method while handling the following exception:
java.lang.IllegalStateException: complete already: NetconfSessionPromise@38d009ff(failure: java.lang.IllegalStateException: Cannot change state from FAILED to ESTABLISHED for channel [id: 0xcb9d86ca])
        at io.netty.util.concurrent.DefaultPromise.setFailure(DefaultPromise.java:112) ~[netty-common-4.1.69.Final.jar:4.1.69.Final]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.negotiationFailed(AbstractNetconfSessionNegotiator.java:285) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.channelRead(AbstractNetconfSessionNegotiator.java:325) ~[netconf-netty-util-2.0.14.jar:?]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:61) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:370) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:469) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at java.lang.Thread.run(Thread.java:829) [?:?]
Caused by: java.lang.IllegalStateException: complete already: NetconfSessionPromise@38d009ff(failure: java.lang.IllegalStateException: Cannot change state from FAILED to ESTABLISHED for channel [id: 0xcb9d86ca])
        at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:99) ~[netty-common-4.1.69.Final.jar:4.1.69.Final]
        at org.opendaylight.netconf.nettyutil.NetconfSessionPromise.setSuccess(NetconfSessionPromise.java:79) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.NetconfSessionPromise.setSuccess(NetconfSessionPromise.java:27) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.negotiationSuccessful(AbstractNetconfSessionNegotiator.java:279) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.client.NetconfClientSessionNegotiator.handleMessage(NetconfClientSessionNegotiator.java:93) ~[netconf-client-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.channelRead(AbstractNetconfSessionNegotiator.java:322) ~[netconf-netty-util-2.0.14.jar:?]
        ... 20 more
[TRACE] 2022-05-30 09:27:51.717 [default-pool-5-2] NetconfSessionPreferences - capability urn:ietf:params:netconf:capability:notification:1.0 partially matches {urn:ietf:params:netconf:capability:notification:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:interleave:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:validate:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:confirmed-commit:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:candidate:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:rollback-on-error:1.0=DeviceAdvertised, urn:ietf:params:netconf:base:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:with-defaults:1.0?basic-mode=report-all=DeviceAdvertised, urn:ietf:params:netconf:base:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:writable-running:1.0=DeviceAdvertised}
[DEBUG] 2022-05-30 09:27:51.717 [default-pool-5-2] NetconfDeviceSalProvider - RemoteDevice{DCS:DCS:DCS-N9K-LEAF04}: TOPOLOGY Mountpoint exposed into MD-SAL {closed=false, instance=org.opendaylight.mdsal.dom.spi.SimpleDOMMountPoint@247a768}
May 30, 2022 9:27:51 AM com.google.common.util.concurrent.AbstractFuture executeListener
SEVERE: RuntimeException while executing runnable CallbackListener{org.opendaylight.netconf.sal.connect.netconf.NetconfDevice$1@35db29f3} with executor MoreExecutors.directExecutor()
java.lang.IllegalStateException: RemoteDevice{DCS:DCS:DCS-N9K-LEAF04}: Sal provider org.opendaylight.netconf.sal.connect.netconf.sal.NetconfDeviceSalProvider@64f4ef22 was not initialized by sal. Cannot get topology datastore adapter
        at com.google.common.base.Preconditions.checkState(Preconditions.java:826)
        at org.opendaylight.netconf.sal.connect.netconf.sal.NetconfDeviceSalProvider.getTopologyDatastoreAdapter(NetconfDeviceSalProvider.java:85)
        at org.opendaylight.netconf.sal.connect.netconf.sal.NetconfDeviceSalFacade.onDeviceConnected(NetconfDeviceSalFacade.java:89)
        at org.opendaylight.netconf.sal.connect.netconf.sal.NetconfDeviceSalFacade.onDeviceConnected(NetconfDeviceSalFacade.java:43)
        at org.opendaylight.netconf.sal.connect.netconf.NetconfDevice.handleSalInitializationSuccess(NetconfDevice.java:262)
        at org.opendaylight.netconf.sal.connect.netconf.NetconfDevice$1.onSuccess(NetconfDevice.java:184)
        at org.opendaylight.netconf.sal.connect.netconf.NetconfDevice$1.onSuccess(NetconfDevice.java:181)
        at com.google.common.util.concurrent.Futures$CallbackListener.run(Futures.java:1080)
        at com.google.common.util.concurrent.DirectExecutor.execute(DirectExecutor.java:30)
        at com.google.common.util.concurrent.AbstractFuture.executeListener(AbstractFuture.java:1213)
        at com.google.common.util.concurrent.AbstractFuture.complete(AbstractFuture.java:983)
        at com.google.common.util.concurrent.AbstractFuture.setFuture(AbstractFuture.java:814)
        at com.google.common.util.concurrent.AbstractTransformFuture$AsyncTransformFuture.setResult(AbstractTransformFuture.java:224)
        at com.google.common.util.concurrent.AbstractTransformFuture$AsyncTransformFuture.setResult(AbstractTransformFuture.java:202)
        at com.google.common.util.concurrent.AbstractTransformFuture.run(AbstractTransformFuture.java:163)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
        at java.base/java.lang.Thread.run(Thread.java:829)
[ERROR] 2022-05-30 09:27:55.266 [pool-28-thread-1] WrapperUtils - Rpc failed
java.util.concurrent.CompletionException: java.lang.IllegalStateException: MountPoint should not exist for device: DCS:DCS:DCS-N9K-LEAF04
        at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:314) ~[?:?]
        at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:319) ~[?:?]
        at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1081) ~[?:?]
        at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:506) ~[?:?]
        at java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:2073) ~[?:?]
        at com.att.sdnctl.nextgendc.openfabric.common.tools.FutureUtils.lambda$delayedStage$12(FutureUtils.java:230) ~[tools-4.0.16.jar:?]
        at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?]
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) [?:?]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
        at java.lang.Thread.run(Thread.java:829) [?:?]
Caused by: java.lang.IllegalStateException: MountPoint should not exist for device: DCS:DCS:DCS-N9K-LEAF04
        at com.att.sdnctl.nextgendc.netconf.accessor.NetconfAccessorManager.addDevices(NetconfAccessorManager.java:118) ~[netconf-accessor-4.0.16.jar:?]
        at com.att.sdnctl.nextgendc.netconf.accessor.NetconfAccessorManager.lambda$reconnect$4(NetconfAccessorManager.java:175) ~[netconf-accessor-4.0.16.jar:?]
        at java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1072) ~[?:?]
        ... 8 more
[DEBUG] 2022-05-30 09:27:55.814 [nioEventLoopGroup-3-2] NetconfDeviceCommunicator - RemoteDevice{DCS:DCS:DCS-N9K-LEAF04}: Session established
[TRACE] 2022-05-30 09:27:55.814 [nioEventLoopGroup-3-2] NetconfDeviceCommunicator - RemoteDevice{DCS:DCS:DCS-N9K-LEAF04}: Session advertised capabilities: NetconfSessionPreferences{capabilities={urn:ietf:params:netconf:capability:notification:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:interleave:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:validate:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:confirmed-commit:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:candidate:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:rollback-on-error:1.0=DeviceAdvertised, urn:ietf:params:netconf:base:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:with-defaults:1.0?basic-mode=report-all=DeviceAdvertised, urn:ietf:params:netconf:base:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:writable-running:1.0=DeviceAdvertised}, moduleBasedCapabilities={(http://cisco.com/ns/yang/cisco-nx-os-device?revision=2021-06-10)Cisco-NX-OS-device=DeviceAdvertised}, rollback=true, monitoring=false, candidate=true, writableRunning=true}
[TRACE] 2022-05-30 09:27:55.814 [nioEventLoopGroup-3-2] NetconfSessionPreferences - capability urn:ietf:params:netconf:capability:notification:1.0 partially matches {urn:ietf:params:netconf:capability:notification:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:interleave:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:validate:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:confirmed-commit:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:candidate:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:rollback-on-error:1.0=DeviceAdvertised, urn:ietf:params:netconf:base:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:with-defaults:1.0?basic-mode=report-all=DeviceAdvertised, urn:ietf:params:netconf:base:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:writable-running:1.0=DeviceAdvertised}
[TRACE] 2022-05-30 09:27:55.814 [nioEventLoopGroup-3-2] NetconfSessionPreferences - capability urn:ietf:params:netconf:capability:notification:1.0 partially matches {urn:ietf:params:netconf:capability:notification:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:interleave:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:validate:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:confirmed-commit:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:candidate:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:rollback-on-error:1.0=DeviceAdvertised, urn:ietf:params:netconf:base:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:with-defaults:1.0?basic-mode=report-all=DeviceAdvertised, urn:ietf:params:netconf:base:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:writable-running:1.0=DeviceAdvertised}
[TRACE] 2022-05-30 09:27:55.815 [default-pool-5-1] NetconfSessionPreferences - capability urn:ietf:params:netconf:capability:notification:1.0 partially matches {urn:ietf:params:netconf:capability:notification:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:interleave:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:validate:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:confirmed-commit:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:candidate:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:rollback-on-error:1.0=DeviceAdvertised, urn:ietf:params:netconf:base:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:with-defaults:1.0?basic-mode=report-all=DeviceAdvertised, urn:ietf:params:netconf:base:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:writable-running:1.0=DeviceAdvertised}
[WARN ] 2022-05-30 09:27:55.815 [nioEventLoopGroup-3-2] AbstractNetconfSessionNegotiator - An exception occurred during negotiation with null on channel [id: 0xf8210a15]
java.lang.IllegalStateException: complete already: NetconfSessionPromise@38d009ff(failure: java.lang.IllegalStateException: Cannot change state from FAILED to ESTABLISHED for channel [id: 0xcb9d86ca])
        at io.netty.util.concurrent.DefaultPromise.setFailure(DefaultPromise.java:112) ~[netty-common-4.1.69.Final.jar:4.1.69.Final]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.negotiationFailed(AbstractNetconfSessionNegotiator.java:285) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.channelRead(AbstractNetconfSessionNegotiator.java:325) ~[netconf-netty-util-2.0.14.jar:?]
May 30, 2022 9:27:55 AM com.google.common.util.concurrent.AbstractFuture executeListener
SEVERE: RuntimeException while executing runnable CallbackListener{org.opendaylight.netconf.sal.connect.netconf.NetconfDevice$1@49a9e0b2} with executor MoreExecutors.directExecutor()
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
java.lang.IllegalStateException: Already initialized
        at com.google.common.base.Preconditions.checkState(Preconditions.java:510)
        at org.opendaylight.netconf.sal.connect.netconf.sal.NetconfDeviceSalProvider$MountInstance.onTopologyDeviceConnected(NetconfDeviceSalProvider.java:127)
        at org.opendaylight.netconf.sal.connect.netconf.sal.NetconfDeviceSalFacade.onDeviceConnected(NetconfDeviceSalFacade.java:87)
        at org.opendaylight.netconf.sal.connect.netconf.sal.NetconfDeviceSalFacade.onDeviceConnected(NetconfDeviceSalFacade.java:43)
        at org.opendaylight.netconf.sal.connect.netconf.NetconfDevice.handleSalInitializationSuccess(NetconfDevice.java:262)
        at org.opendaylight.netconf.sal.connect.netconf.NetconfDevice$1.onSuccess(NetconfDevice.java:184)
        at org.opendaylight.netconf.sal.connect.netconf.NetconfDevice$1.onSuccess(NetconfDevice.java:181)
        at com.google.common.util.concurrent.Futures$CallbackListener.run(Futures.java:1080)
        at com.google.common.util.concurrent.DirectExecutor.execute(DirectExecutor.java:30)
        at com.google.common.util.concurrent.AbstractFuture.executeListener(AbstractFuture.java:1213)
        at com.google.common.util.concurrent.AbstractFuture.complete(AbstractFuture.java:983)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at com.google.common.util.concurrent.AbstractFuture.setFuture(AbstractFuture.java:814)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at com.google.common.util.concurrent.AbstractTransformFuture$AsyncTransformFuture.setResult(AbstractTransformFuture.java:224)
        at com.google.common.util.concurrent.AbstractTransformFuture$AsyncTransformFuture.setResult(AbstractTransformFuture.java:202)
        at com.google.common.util.concurrent.AbstractTransformFuture.run(AbstractTransformFuture.java:163)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:61) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:370) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:469) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
        at java.base/java.lang.Thread.run(Thread.java:829)

        at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at java.lang.Thread.run(Thread.java:829) [?:?]
Caused by: java.lang.IllegalStateException: complete already: NetconfSessionPromise@38d009ff(failure: java.lang.IllegalStateException: Cannot change state from FAILED to ESTABLISHED for channel [id: 0xcb9d86ca])
        at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:99) ~[netty-common-4.1.69.Final.jar:4.1.69.Final]
        at org.opendaylight.netconf.nettyutil.NetconfSessionPromise.setSuccess(NetconfSessionPromise.java:79) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.NetconfSessionPromise.setSuccess(NetconfSessionPromise.java:27) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.negotiationSuccessful(AbstractNetconfSessionNegotiator.java:279) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.client.NetconfClientSessionNegotiator.handleMessage(NetconfClientSessionNegotiator.java:93) ~[netconf-client-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.channelRead(AbstractNetconfSessionNegotiator.java:322) ~[netconf-netty-util-2.0.14.jar:?]
        ... 20 more
[WARN ] 2022-05-30 09:27:55.815 [nioEventLoopGroup-3-2] AbstractChannelHandlerContext - An exception 'java.lang.IllegalStateException: complete already: NetconfSessionPromise@38d009ff(failure: java.lang.IllegalStateException: Cannot change state from FAILED to ESTABLISHED for channel [id: 0xcb9d86ca])' [enable DEBUG level for full stacktrace] was thrown by a user handler's exceptionCaught() method while handling the following exception:
java.lang.IllegalStateException: complete already: NetconfSessionPromise@38d009ff(failure: java.lang.IllegalStateException: Cannot change state from FAILED to ESTABLISHED for channel [id: 0xcb9d86ca])
        at io.netty.util.concurrent.DefaultPromise.setFailure(DefaultPromise.java:112) ~[netty-common-4.1.69.Final.jar:4.1.69.Final]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.negotiationFailed(AbstractNetconfSessionNegotiator.java:285) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.channelRead(AbstractNetconfSessionNegotiator.java:325) ~[netconf-netty-util-2.0.14.jar:?]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:61) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:370) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:469) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at java.lang.Thread.run(Thread.java:829) [?:?]
Caused by: java.lang.IllegalStateException: complete already: NetconfSessionPromise@38d009ff(failure: java.lang.IllegalStateException: Cannot change state from FAILED to ESTABLISHED for channel [id: 0xcb9d86ca])
        at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:99) ~[netty-common-4.1.69.Final.jar:4.1.69.Final]
        at org.opendaylight.netconf.nettyutil.NetconfSessionPromise.setSuccess(NetconfSessionPromise.java:79) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.NetconfSessionPromise.setSuccess(NetconfSessionPromise.java:27) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.negotiationSuccessful(AbstractNetconfSessionNegotiator.java:279) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.client.NetconfClientSessionNegotiator.handleMessage(NetconfClientSessionNegotiator.java:93) ~[netconf-client-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.channelRead(AbstractNetconfSessionNegotiator.java:322) ~[netconf-netty-util-2.0.14.jar:?]
        ... 20 more
[DEBUG] 2022-05-30 09:28:00.261 [nioEventLoopGroup-3-2] NetconfDeviceCommunicator - RemoteDevice{DCS:DCS:DCS-N9K-LEAF04}: Session established
[TRACE] 2022-05-30 09:28:00.261 [nioEventLoopGroup-3-2] NetconfDeviceCommunicator - RemoteDevice{DCS:DCS:DCS-N9K-LEAF04}: Session advertised capabilities: NetconfSessionPreferences{capabilities={urn:ietf:params:netconf:capability:notification:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:interleave:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:validate:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:confirmed-commit:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:candidate:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:rollback-on-error:1.0=DeviceAdvertised, urn:ietf:params:netconf:base:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:with-defaults:1.0?basic-mode=report-all=DeviceAdvertised, urn:ietf:params:netconf:base:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:writable-running:1.0=DeviceAdvertised}, moduleBasedCapabilities={(http://cisco.com/ns/yang/cisco-nx-os-device?revision=2021-06-10)Cisco-NX-OS-device=DeviceAdvertised}, rollback=true, monitoring=false, candidate=true, writableRunning=true}
[TRACE] 2022-05-30 09:28:00.261 [nioEventLoopGroup-3-2] NetconfSessionPreferences - capability urn:ietf:params:netconf:capability:notification:1.0 partially matches {urn:ietf:params:netconf:capability:notification:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:interleave:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:validate:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:confirmed-commit:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:candidate:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:rollback-on-error:1.0=DeviceAdvertised, urn:ietf:params:netconf:base:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:with-defaults:1.0?basic-mode=report-all=DeviceAdvertised, urn:ietf:params:netconf:base:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:writable-running:1.0=DeviceAdvertised}
[TRACE] 2022-05-30 09:28:00.261 [nioEventLoopGroup-3-2] NetconfSessionPreferences - capability urn:ietf:params:netconf:capability:notification:1.0 partially matches {urn:ietf:params:netconf:capability:notification:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:interleave:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:validate:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:confirmed-commit:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:candidate:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:rollback-on-error:1.0=DeviceAdvertised, urn:ietf:params:netconf:base:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:with-defaults:1.0?basic-mode=report-all=DeviceAdvertised, urn:ietf:params:netconf:base:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:writable-running:1.0=DeviceAdvertised}
[WARN ] 2022-05-30 09:28:00.262 [nioEventLoopGroup-3-2] AbstractNetconfSessionNegotiator - An exception occurred during negotiation with null on channel [id: 0xc1bd3f25]
java.lang.IllegalStateException: complete already: NetconfSessionPromise@38d009ff(failure: java.lang.IllegalStateException: Cannot change state from FAILED to ESTABLISHED for channel [id: 0xcb9d86ca])
        at io.netty.util.concurrent.DefaultPromise.setFailure(DefaultPromise.java:112) ~[netty-common-4.1.69.Final.jar:4.1.69.Final]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.negotiationFailed(AbstractNetconfSessionNegotiator.java:285) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.channelRead(AbstractNetconfSessionNegotiator.java:325) ~[netconf-netty-util-2.0.14.jar:?]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:61) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:370) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:469) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at java.lang.Thread.run(Thread.java:829) [?:?]
Caused by: java.lang.IllegalStateException: complete already: NetconfSessionPromise@38d009ff(failure: java.lang.IllegalStateException: Cannot change state from FAILED to ESTABLISHED for channel [id: 0xcb9d86ca])
        at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:99) ~[netty-common-4.1.69.Final.jar:4.1.69.Final]
        at org.opendaylight.netconf.nettyutil.NetconfSessionPromise.setSuccess(NetconfSessionPromise.java:79) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.NetconfSessionPromise.setSuccess(NetconfSessionPromise.java:27) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.negotiationSuccessful(AbstractNetconfSessionNegotiator.java:279) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.client.NetconfClientSessionNegotiator.handleMessage(NetconfClientSessionNegotiator.java:93) ~[netconf-client-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.channelRead(AbstractNetconfSessionNegotiator.java:322) ~[netconf-netty-util-2.0.14.jar:?]
        ... 20 more
[WARN ] 2022-05-30 09:28:00.262 [nioEventLoopGroup-3-2] AbstractChannelHandlerContext - An exception 'java.lang.IllegalStateException: complete already: NetconfSessionPromise@38d009ff(failure: java.lang.IllegalStateException: Cannot change state from FAILED to ESTABLISHED for channel [id: 0xcb9d86ca])' [enable DEBUG level for full stacktrace] was thrown by a user handler's exceptionCaught() method while handling the following exception:
java.lang.IllegalStateException: complete already: NetconfSessionPromise@38d009ff(failure: java.lang.IllegalStateException: Cannot change state from FAILED to ESTABLISHED for channel [id: 0xcb9d86ca])
        at io.netty.util.concurrent.DefaultPromise.setFailure(DefaultPromise.java:112) ~[netty-common-4.1.69.Final.jar:4.1.69.Final]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.negotiationFailed(AbstractNetconfSessionNegotiator.java:285) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.channelRead(AbstractNetconfSessionNegotiator.java:325) ~[netconf-netty-util-2.0.14.jar:?]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296) [netty-codec-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:61) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:370) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:469) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500) [netty-transport-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [netty-common-4.1.69.Final.jar:4.1.69.Final]
        at java.lang.Thread.run(Thread.java:829) [?:?]
Caused by: java.lang.IllegalStateException: complete already: NetconfSessionPromise@38d009ff(failure: java.lang.IllegalStateException: Cannot change state from FAILED to ESTABLISHED for channel [id: 0xcb9d86ca])
        at io.netty.util.concurrent.DefaultPromise.setSuccess(DefaultPromise.java:99) ~[netty-common-4.1.69.Final.jar:4.1.69.Final]
        at org.opendaylight.netconf.nettyutil.NetconfSessionPromise.setSuccess(NetconfSessionPromise.java:79) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.NetconfSessionPromise.setSuccess(NetconfSessionPromise.java:27) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.negotiationSuccessful(AbstractNetconfSessionNegotiator.java:279) ~[netconf-netty-util-2.0.14.jar:?]
        at org.opendaylight.netconf.client.NetconfClientSessionNegotiator.handleMessage(NetconfClientSessionNegotiator.java:93) ~[netconf-client-2.0.14.jar:?]
        at org.opendaylight.netconf.nettyutil.AbstractNetconfSessionNegotiator.channelRead(AbstractNetconfSessionNegotiator.java:322) ~[netconf-netty-util-2.0.14.jar:?]
        ... 20 more
[TRACE] 2022-05-30 09:28:00.263 [default-pool-5-2] NetconfSessionPreferences - capability urn:ietf:params:netconf:capability:notification:1.0 partially matches {urn:ietf:params:netconf:capability:notification:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:interleave:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:validate:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:confirmed-commit:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:candidate:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:rollback-on-error:1.0=DeviceAdvertised, urn:ietf:params:netconf:base:1.1=DeviceAdvertised, urn:ietf:params:netconf:capability:with-defaults:1.0?basic-mode=report-all=DeviceAdvertised, urn:ietf:params:netconf:base:1.0=DeviceAdvertised, urn:ietf:params:netconf:capability:writable-running:1.0=DeviceAdvertised}