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Posted to hdfs-dev@hadoop.apache.org by "James Clampffer (JIRA)" <ji...@apache.org> on 2015/11/24 00:02:11 UTC

[jira] [Created] (HDFS-9453) Fix protobuf runtime warnings

James Clampffer created HDFS-9453:
-------------------------------------

             Summary: Fix protobuf runtime warnings
                 Key: HDFS-9453
                 URL: https://issues.apache.org/jira/browse/HDFS-9453
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: James Clampffer
            Assignee: 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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