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https://issues.apache.org/jira/browse/STORM-3195?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Ethan Li closed STORM-3195.
---------------------------
Resolution: Invalid
Community 1.x will not have this issue because
https://github.com/apache/storm/pull/2325 wasn't merged into 1.x. The worker
count will always be int and acker executer number will always be int.
Our internal version 1.x has https://github.com/apache/storm/pull/2325 feature.
And that's why it happened.
> IllegalArgumentException when rolling upgrade nimbus from 1.x to 2.x
> --------------------------------------------------------------------
>
> Key: STORM-3195
> URL: https://issues.apache.org/jira/browse/STORM-3195
> Project: Apache Storm
> Issue Type: Bug
> Reporter: Ethan Li
> Priority: Major
>
> {code:java}
> 2018-08-15 15:49:06.550 o.a.s.d.n.Nimbus timer [ERROR] Error while processing
> event
> java.lang.RuntimeException: java.lang.IllegalArgumentException: Don't know
> how to convert 1.7604166666666667 to int
> at
> org.apache.storm.daemon.nimbus.Nimbus.lambda$launchServer$48(Nimbus.java:2837)
> ~[storm-server-2.0.0.y.jar:2.0.0.y]
> at org.apache.storm.StormTimer$1.run(StormTimer.java:110)
> ~[storm-client-2.0.0.y.jar:2.0.0.y]
> at
> org.apache.storm.StormTimer$StormTimerTask.run(StormTimer.java:226)
> [storm-client-2.0.0.y.jar:2.0.0.y]
> Caused by: java.lang.IllegalArgumentException: Don't know how to convert
> 1.7604166666666667 to int
> at org.apache.storm.utils.ObjectReader.getInt(ObjectReader.java:78)
> ~[storm-client-2.0.0.y.jar:2.0.0.y]
> at org.apache.storm.daemon.StormCommon.addAcker(StormCommon.java:256)
> ~[storm-client-2.0.0.y.jar:2.0.0.y]
> at
> org.apache.storm.daemon.StormCommon.systemTopologyImpl(StormCommon.java:523)
> ~[storm-client-2.0.0.y.jar:2.0.0.y]
> at
> org.apache.storm.daemon.StormCommon.systemTopology(StormCommon.java:440)
> ~[storm-client-2.0.0.y.jar:2.0.0.y]
> at
> org.apache.storm.daemon.StormCommon.stormTaskInfoImpl(StormCommon.java:544)
> ~[storm-client-2.0.0.y.jar:2.0.0.y]
> at
> org.apache.storm.daemon.StormCommon.stormTaskInfo(StormCommon.java:460)
> ~[storm-client-2.0.0.y.jar:2.0.0.y]
> at
> org.apache.storm.daemon.nimbus.Nimbus.computeExecutors(Nimbus.java:1732)
> ~[storm-server-2.0.0.y.jar:2.0.0.y]
> at
> org.apache.storm.daemon.nimbus.Nimbus.getOrUpdateExecutors(Nimbus.java:1357)
> ~[storm-server-2.0.0.y.jar:2.0.0.y]
> at
> org.apache.storm.daemon.nimbus.Nimbus.computeExecutorToComponent(Nimbus.java:1752)
> ~[storm-server-2.0.0.y.jar:2.0.0.y]
> at
> org.apache.storm.daemon.nimbus.Nimbus.readTopologyDetails(Nimbus.java:1582)
> ~[storm-server-2.0.0.y.jar:2.0.0.y]
> at
> org.apache.storm.daemon.nimbus.Nimbus.getResourcesForTopology(Nimbus.java:2034)
> ~[storm-server-2.0.0.y.jar:2.0.0.y]
> at
> org.apache.storm.daemon.nimbus.Nimbus.getClusterInfoImpl(Nimbus.java:2676)
> ~[storm-server-2.0.0.y.jar:2.0.0.y]
> at
> org.apache.storm.daemon.nimbus.Nimbus.sendClusterMetricsToExecutors(Nimbus.java:2701)
> ~[storm-server-2.0.0.y.jar:2.0.0.y]
> at
> org.apache.storm.daemon.nimbus.Nimbus.lambda$launchServer$48(Nimbus.java:2834)
> ~[storm-server-2.0.0.y.jar:2.0.0.y]
> ... 2 more
> {code}
> We were rolling upgrading our storm cluster to 2.x and we found this error
> from nimbus.log. It's not necessary to do rolling upgrade but good news is we
> basically made it work.
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