Wangda Tan created YARN-8506:
--------------------------------
Summary: Make GetApplicationsRequestPBImpl thread safe
Key: YARN-8506
URL: https://issues.apache.org/jira/browse/YARN-8506
Project: Hadoop YARN
Issue Type: Task
Reporter: Wangda Tan
Assignee: Wangda Tan
When GetApplicationRequestPBImpl is used in multi-thread environment,
exceptions like below will occur because we don't protect write ops.
{code}
java.lang.ArrayIndexOutOfBoundsException
at java.lang.System.arraycopy(Native Method)
at java.util.ArrayList.addAll(ArrayList.java:613)
at
com.google.protobuf.LazyStringArrayList.addAll(LazyStringArrayList.java:132)
at
com.google.protobuf.LazyStringArrayList.addAll(LazyStringArrayList.java:123)
at
com.google.protobuf.AbstractMessageLite$Builder.addAll(AbstractMessageLite.java:327)
at
org.apache.hadoop.yarn.proto.YarnServiceProtos$GetApplicationsRequestProto$Builder.addAllApplicationTags(YarnServiceProtos.java:24450)
at
org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetApplicationsRequestPBImpl.mergeLocalToBuilder(GetApplicationsRequestPBImpl.java:100)
at
org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetApplicationsRequestPBImpl.mergeLocalToProto(GetApplicationsRequestPBImpl.java:78)
at
org.apache.hadoop.yarn.api.protocolrecords.impl.pb.GetApplicationsRequestPBImpl.getProto(GetApplicationsRequestPBImpl.java:69)
{code}
We need to make GetApplicationRequestPBImpl thread safe. We saw the issue
happens frequently when RequestHedgingRMFailoverProxyProvider is being used.
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