Details
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Improvement
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Status: Open
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Minor
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Resolution: Unresolved
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None
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None
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None
Description
When trying to determine reason for test failure over in HBASE-9393, I saw the following exception:
testSeekTo[4](org.apache.hadoop.hbase.io.hfile.TestSeekTo) Time elapsed: 0.033 sec <<< ERROR!
java.lang.UnsupportedOperationException: this stream does not support unbuffering.
at org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:229)
at org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:227)
at org.apache.hadoop.hbase.io.hfile.HFile.pickReaderVersion(HFile.java:518)
at org.apache.hadoop.hbase.io.hfile.HFile.createReader(HFile.java:562)
at org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekToInternals(TestSeekTo.java:307)
at org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekTo(TestSeekTo.java:298)
Here is the cause:
java.lang.ClassCastException: org.apache.hadoop.fs.BufferedFSInputStream cannot be cast to org.apache.hadoop.fs.CanUnbuffer
See the comments starting with https://issues.apache.org/jira/browse/HBASE-9393?focusedCommentId=15105939&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15105939 for background on the HBase patch.
This issue is to make BufferedFSInputStream implement CanUnbuffer.
This would benefit hbase unit tests.
Thanks to cmccabe for discussion.
Attachments
Issue Links
- is related to
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HBASE-9393 Region Server fails to properly close socket resulting in many CLOSE_WAIT to Data Nodes
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- Closed
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