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Posted to issues@tez.apache.org by "Jonathan Eagles (JIRA)" <ji...@apache.org> on 2018/05/31 20:16:00 UTC
[jira] [Assigned] (TEZ-3942) RPC getTask writable optimization
invalid in hadoop 2.8+
[ https://issues.apache.org/jira/browse/TEZ-3942?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Eagles reassigned TEZ-3942:
------------------------------------
Assignee: Jonathan Eagles
> RPC getTask writable optimization invalid in hadoop 2.8+
> --------------------------------------------------------
>
> Key: TEZ-3942
> URL: https://issues.apache.org/jira/browse/TEZ-3942
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Jonathan Eagles
> Assignee: Jonathan Eagles
> Priority: Major
> Attachments: TEZ-3942.001.patch, TEZ-3942.test.patch
>
>
> TEZ-3140 added an optimization to improve performance of RPC writable. HADOOP-13426 added in hadoop 2.8 has invalidated the assumption of the added optimization by changing the underlying output buffer.
> {noformat}
> "IPC Server handler 25 on 35274" #85 daemon prio=5 os_prio=0 tid=0x00000000022c0000 nid=0x1b40f runnable [0x00002ba1a6627000]
> java.lang.Thread.State: RUNNABLE
> at java.util.Arrays.copyOf(Arrays.java:3236)
> at java.io.ByteArrayOutputStream.grow(ByteArrayOutputStream.java:118)
> at java.io.ByteArrayOutputStream.ensureCapacity(ByteArrayOutputStream.java:93)
> at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:153)
> - locked <0x000000072fe9ac68> (a org.apache.hadoop.ipc.ResponseBuffer$FramedBuffer)
> at java.io.DataOutputStream.write(DataOutputStream.java:107)
> - locked <0x000000072fe9ac48> (a org.apache.hadoop.ipc.ResponseBuffer)
> at org.apache.tez.dag.api.EntityDescriptor.write(EntityDescriptor.java:121)
> at org.apache.tez.runtime.api.impl.InputSpec.write(InputSpec.java:66)
> at org.apache.tez.runtime.api.impl.TaskSpec.write(TaskSpec.java:174)
> at org.apache.tez.common.ContainerTask.write(ContainerTask.java:77)
> at org.apache.hadoop.io.ObjectWritable.writeObject(ObjectWritable.java:202)
> at org.apache.hadoop.io.ObjectWritable.writeObject(ObjectWritable.java:128)
> at org.apache.hadoop.io.ObjectWritable.write(ObjectWritable.java:82)
> at org.apache.hadoop.ipc.RpcWritable$WritableWrapper.writeTo(RpcWritable.java:75)
> at org.apache.hadoop.ipc.Server.setupResponseForWritable(Server.java:2807)
> at org.apache.hadoop.ipc.Server.setupResponse(Server.java:2792)
> at org.apache.hadoop.ipc.Server.setupResponse(Server.java:2766)
> at org.apache.hadoop.ipc.Server.access$100(Server.java:138)
> at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:905)
> at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:810)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1949)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2523)
> {noformat}
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