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https://issues.apache.org/jira/browse/TEZ-3710?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gopal V resolved TEZ-3710.
--------------------------
Resolution: Duplicate
> InMemoryReader has a lock per-byte
> ----------------------------------
>
> Key: TEZ-3710
> URL: https://issues.apache.org/jira/browse/TEZ-3710
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Gopal V
> Assignee: Gopal V
>
> In ByteArrayDataInput - the super read() call is synchronized.
> {code}
> @Override
> public byte readByte() throws IOException {
> return (byte)read();
> }
> {code}
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