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https://issues.apache.org/jira/browse/APEXCORE-504?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vlad Rozov resolved APEXCORE-504.
---------------------------------
Resolution: Fixed
Fix Version/s: 3.4.1
3.6.0
3.2.2
3.3.1
> Possible race condition in StreamingContainerAgent.getStreamCodec()
> -------------------------------------------------------------------
>
> Key: APEXCORE-504
> URL: https://issues.apache.org/jira/browse/APEXCORE-504
> Project: Apache Apex Core
> Issue Type: Bug
> Affects Versions: 3.3.0, 3.2.1, 3.4.0, 3.5.0
> Reporter: Vlad Rozov
> Assignee: Vlad Rozov
> Fix For: 3.3.1, 3.2.2, 3.6.0, 3.4.1
>
>
> StreamingContainerAgent.getStreamCodec() may be called from multiple RPC
> heartbeat processing threads for the same inputPortMeta (for an input port of
> a partitioned operator) that leads to a race condition in the following code:
> {noformat}
> StreamCodec<?> codec = inputPortMeta.getValue(PortContext.STREAM_CODEC);
> if (codec == null) {
> // it cannot be this object that gets returned. Depending on this
> value is dangerous
> codec = inputPortMeta.getPortObject().getStreamCodec();
> if (codec != null) {
> // don't create codec multiple times - it will assign a new
> identifier
> inputPortMeta.getAttributes().put(PortContext.STREAM_CODEC, codec);
> }
> {noformat}
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