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https://issues.apache.org/jira/browse/HDFS-9453?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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James Clampffer resolved HDFS-9453.
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Resolution: Duplicate
Assignee: (was: James Clampffer)
Dupe of HDFS-10595
> Fix protobuf runtime warnings
> -----------------------------
>
> Key: HDFS-9453
> URL: https://issues.apache.org/jira/browse/HDFS-9453
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
> Reporter: James Clampffer
>
> When performing reads sometimes this warning shows up on stdout or stderr:
> "Encountered string containing invalid UTF-8 data while serializing protocol
> buffer. Strings must contain only UTF-8; use the 'bytes' type for raw bytes"
> Apparently this is most likely due to nulls embedded in a string field.
> Running in gdb and breaking on wire_format.cc line 1053 gets a useful stack.
> It looks like RemoteBlockReader::async_connect eventually makes a
> hadoop::hdfs::ClientOperationHeaderProto and VerifyUTF8String errors out.
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