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https://issues.apache.org/jira/browse/IMPALA-8521?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Becker updated IMPALA-8521:
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Target Version: Impala 4.3.0 (was: Impala 4.2.0)
> Lots of "unreleased ByteBuffers allocated by read()" errors from HDFS client
> ----------------------------------------------------------------------------
>
> Key: IMPALA-8521
> URL: https://issues.apache.org/jira/browse/IMPALA-8521
> Project: IMPALA
> Issue Type: Bug
> Components: Backend
> Reporter: Tim Armstrong
> Assignee: Sahil Takiar
> Priority: Critical
>
> I'm looking at some job logs and seeing a bunch of errors like this. I don't
> know if it's benign or if it's something more serious.
> {noformat}
> I0507 07:34:53.934693 20195 scan-range.cc:607]
> dd4d6eb8d2ad9587:6b44fe1b00000002] Cache read failed for scan range:
> file=hdfs://localhost:20500/test-warehouse/f861f1a3/nation.tbl disk_id=0
> offset=1024 exclusive_hdfs_fh=0xec09220 num_remote_bytes=0 cancel_status=
> buffer_queue=0 num_buffers_in_readers=0 unused_iomgr_buffers=0
> unused_iomgr_buffer_bytes=0 blocked_on_buffer=0. Switching to disk read path.
> W0507 07:34:53.934787 20195 DFSInputStream.java:668]
> dd4d6eb8d2ad9587:6b44fe1b00000002] closing file
> /test-warehouse/f861f1a3/nation.tbl, but there are still unreleased
> ByteBuffers allocated by read(). Please release
> java.nio.DirectByteBufferR[pos=1024 lim=2048 cap=2199].
> {noformat}
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