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/SYSTEMMETR-1 systemmetrics <p>When calling the GetClusterMembers RPC method, StatsCollector throws an NPE (see attached stack trace).</p> <p>This is due to a change in the exposed MBeans which StatsCollector relied on to get the members of the cluster. The relevant MBean is no longer present, so we get an NPE when we try to get a field from the resulting jolokia JSON object.</p> <p>The GetClusterMembers RPC should really use the akka MBean to determine cluster members instead of the hacky way it was done in StatsCollector before.</p> <p>Operating System: All<br/> Platform: All</p> SYSTEMMETR-1

Call to GetClusterMembers RPC throws NPE

Bug Resolved Done Ashish Kumar Tyler Levine Fri, 2 Jun 2017 18:25:44 +0000 Thu, 6 Jul 2017 18:29:58 +0000 Thu, 6 Jul 2017 18:29:58 +0000 unspecified General 0 0 <p>Attachment systemmetrics-stack-trace.txt has been added with description: stack trace</p> <p>Link to patches for solution: </p> <p>1. <a href="https://git.opendaylight.org/gerrit/#/c/59705/" class="external-link" target="_blank" rel="nofollow noopener">https://git.opendaylight.org/gerrit/#/c/59705/</a><br/> =&gt; This patch removes the dependency from previous Mbean and uses akka Mbean to recieve information about cluster members.<br/> =&gt; Uses Httpconnection to recieve the response of akka Mbean like other API's.<br/> =&gt; Parses the members ip address from akka response and use these ips to collect shard member information for every ip.</p> <p>2. <a href="https://git.opendaylight.org/gerrit/#/c/59944/" class="external-link" target="_blank" rel="nofollow noopener">https://git.opendaylight.org/gerrit/#/c/59944/</a><br/> =&gt; This patch implements unit tests for first patch.<br/> =&gt; It mocks the URL connection and checks if getClusterMembers RPC is behaving in desired way by asserting the observed and expected behaviour,</p> Development External issue ID 8590 External issue URL Issue Type Priority Rank 0|i02u1j: