https://jira.opendaylight.org This file is an XML representation of an issue en-us 8.20.10 820010 22-06-2022 https://jira.opendaylight.org/browse/NETVIRT-875 netvirt <p>Environment Details:<br/> OpenStack Version: stable/ocata<br/> ODL Version: carbon-FR + L2GW related patches<br/> ODL MAX heap: JAVA_MAX_MEM="6144m"</p> <p>Issue:<br/> 　Flows of created NWs are deleted one flow at a time when creating new NW after 1000 NWs were created.<br/> 　These deleted flows are flows in Controller Node.<br/> 　Below is an exmaple of deleted flow:<br/> cookie=0x8800001, table=55, priority=10,tun_id=0x1,metadata=0x10000000000/0xfffff0000000000 actions=drop</p> <p>Detailed Phenomenon:<br/> 1st NW Creation: Flows of the 1st NW are successfully registered in br-int (controller node)<br/> 2nd NW Creation: Flows of the 2nd NW are successfully registered in br-int<br/> . .<br/> . .<br/> . .<br/> 999th NW Creation: Flows of the 999th NW are successfully registered in br-int<br/> 1000th NW Creation: Flows of the 1000th NW are successfully registered in br-int<br/> 1001th NW Creation: Flows of the 1001th NW are successfully registered in br-int<br/> one flow of the 1st NW is deleted<br/> 1002th NW Creation: Flows of the 1002th NW are successfully registered in br-int<br/> one flow of the 2nd NW is deleted<br/> : :<br/> 1010th NW Creation: Flows of the 1010th NW are successfully registered in br-int<br/> one flow of the 10th NW is deleted</p> <ol> <li>confirmed until the 1010th NW creation</li> </ol> <p>Attachment:<br/> ovs.tar.gz ovs information (executed after the 1st, 2nd, 999th, 1000th, 1001th and 1002th NW creation)<br/> ovs-vsctl show<br/> ovs-ofctl -Oopenflow13 dump-flows br-int<br/> ovs-ofctl -Oopenflow13 show br-int<br/> ovs-ofctl -Oopenflow13 dump-groups br-int<br/> xaa - xak ODL logs (splited)</p> <p>Operating System: All<br/> Platform: All</p> NETVIRT-875

Flows of created NWs are deleted one flow at a time when creating new NW after 1000 NWs were created.

Bug Resolved Done Unassigned Ran Xiao Wed, 30 Aug 2017 05:24:34 +0000 Thu, 19 Oct 2017 21:29:11 +0000 Tue, 3 Oct 2017 09:15:46 +0000 Carbon General 0 10 <p>Attachment ovs.tar.gz has been added with description: ovs info</p> <p>Attachment xaa has been added with description: Karaf log 1</p> <p>Attachment xab has been added with description: Karaf log 2</p> <p>Attachment xac has been added with description: Karaf log 3</p> <p>Attachment xad has been added with description: Karaf log 4</p> <p>Attachment xae has been added with description: Karaf log 5</p> <p>Attachment xaf has been added with description: Karaf log 6</p> <p>Attachment xag has been added with description: Karaf log 7</p> <p>Attachment xah has been added with description: Karaf log 8</p> <p>Attachment xai has been added with description: Karaf log 9</p> <p>Attachment xaj has been added with description: Karaf log 10</p> <p>Attachment xak has been added with description: Karaf log 11</p> <p>The source codes caused this issue are:<br/> netvirt/vpnservice/elanmanager/elanmanager-impl/src/main/java/org/opendaylight/netvirt/elan/internal/ElanInterfaceManager.java</p> <p>The following two flows are added by setupFilterEqualsTable():<br/> cookie=0x8800001, table=55, priority=10,tun_id=0x1,metadata=0x10000000000/0xfffff0000000000 actions=drop * the deleted flow<br/> cookie=0x8800001, table=55, priority=9,tun_id=0x1 actions=load:0x100-&gt;NXM_NX_REG6[],resubmit(,220) </p> <p>The flow is generated as below:<br/> Flow flow = MDSALUtil.buildFlowNew(NwConstants.ELAN_FILTER_EQUALS_TABLE,<br/> getFlowRef(NwConstants.ELAN_FILTER_EQUALS_TABLE, ifTag), 9, elanInfo.getElanInstanceName(), 0, 0,<br/> ElanConstants.COOKIE_ELAN_FILTER_EQUALS.add(BigInteger.valueOf(ifTag)),<br/> elanUtils.getTunnelIdMatchForFilterEqualsLPortTag(ifTag),<br/> elanUtils.getInstructionsInPortForOutGroup(interfaceInfo.getInterfaceName()));<br/> Flow flowEntry = MDSALUtil.buildFlowNew(NwConstants.ELAN_FILTER_EQUALS_TABLE,<br/> getFlowRef(NwConstants.ELAN_FILTER_EQUALS_TABLE, 1000 + ifTag), 10, elanInfo.getElanInstanceName(), 0,<br/> 0, ElanConstants.COOKIE_ELAN_FILTER_EQUALS.add(BigInteger.valueOf(ifTag)),<br/> getMatchesForFilterEqualsLPortTag(ifTag), MDSALUtil.buildInstructionsDrop());<br/> *the 2nd argument is '1000 + ifTag', fixed in the code.</p> <p>The 2nd argument of MDSALUtil.buildFlowNew() is String flowId for flow management which is generated by tableId + elanTag.<br/> Therefore,<br/> flowId of the 1st NW : priority=9 flow, flowId="551"<br/> priority=10 flow, flowId="551001"<br/> flowId of the 1001th NW : priority=9 flow, flowId="551001"<br/> priority=10 flow, flowId="552001"</p> <p>Thus, the flowId of the 1001th network is duplicate with the flow of the 1st NW, <br/> resulting the flow of the 1st NW being deleted(overwritten)</p> <p>Patch created:<br/> <a href="https://git.opendaylight.org/gerrit/#/c/63015" class="external-link" target="_blank" rel="nofollow noopener">https://git.opendaylight.org/gerrit/#/c/63015</a></p> <p>Waiting for review.</p> Development External issue ID 9077 External issue URL Rank 0|i01uhz: