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https://issues.apache.org/jira/browse/HDDS-7136?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei-Chiu Chuang updated HDDS-7136:
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Description:
We found Impala queries that run on ofs does not release memory after
completion.
Looking at heap dump, we realized unbuffer() was not called (due to HDDS-7135)
and Impala calls close() on the input stream instead.
According to InputStream javadoc, the close() should
bq. "Closes this input stream and releases any system resources associated with
the stream."
I believe close() should release buffer in addition to sockets (which it
already does).
was:
We found Impala queries that run on ofs does not release memory after complete.
Looking at heap dump, we realized unbuffer() was not called (due to HDDS-7135)
and Impala calls close() on the input stream instead.
According to InputStream javadoc, the close() should
bq. "Closes this input stream and releases any system resources associated with
the stream."
I believe close() should release buffer in addition to sockets (which it
already does).
> Memory leak due to ChunkInputStream.close() not releasing buffer
> ----------------------------------------------------------------
>
> Key: HDDS-7136
> URL: https://issues.apache.org/jira/browse/HDDS-7136
> Project: Apache Ozone
> Issue Type: Bug
> Reporter: Wei-Chiu Chuang
> Assignee: Wei-Chiu Chuang
> Priority: Critical
>
> We found Impala queries that run on ofs does not release memory after
> completion.
> Looking at heap dump, we realized unbuffer() was not called (due to
> HDDS-7135) and Impala calls close() on the input stream instead.
> According to InputStream javadoc, the close() should
> bq. "Closes this input stream and releases any system resources associated
> with the stream."
> I believe close() should release buffer in addition to sockets (which it
> already does).
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