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https://issues.apache.org/jira/browse/HDFS-5191?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13776536#comment-13776536
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Colin Patrick McCabe commented on HDFS-5191:
--------------------------------------------
bq. [import-only changes in DFSUtil.java]
fixed
bq. ...exception message would have an extraneous space
fixed
bq. Should we use GenericTestUtils#waitFor, so that there is a timeout?
fixed to use waitFor here. even if there is an overall test timeout, it's
nicer to use GenericTestUtils#waitFor.
I also added a comment to IdentityHashStore about the 0.50 load factor, and got
rid of the extra slot, so hash table size is now always a power of 2.
> revisit zero-copy API in FSDataInputStream to make it more intuitive
> --------------------------------------------------------------------
>
> Key: HDFS-5191
> URL: https://issues.apache.org/jira/browse/HDFS-5191
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client, libhdfs
> Affects Versions: HDFS-4949
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
> Attachments: HDFS-5191-caching.001.patch,
> HDFS-5191-caching.003.patch, HDFS-5191-caching.006.patch,
> HDFS-5191-caching.007.patch, HDFS-5191-caching.008.patch,
> HDFS-5191-caching.009.patch
>
>
> As per the discussion on HDFS-4953, we should revisit the zero-copy API to
> make it more intuitive for new users.
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