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https://issues.apache.org/jira/browse/HIVE-10217?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14499598#comment-14499598
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Gopal V commented on HIVE-10217:
--------------------------------
I guess we can use an arbitrary size to read this data in, since the layout
after decompression will match reading this in 256kb chunks (or whatever's
ideal for the allocator).
> LLAP: Support caching of uncompressed ORC data
> ----------------------------------------------
>
> Key: HIVE-10217
> URL: https://issues.apache.org/jira/browse/HIVE-10217
> Project: Hive
> Issue Type: Sub-task
> Affects Versions: llap
> Reporter: Gopal V
> Assignee: Sergey Shelukhin
> Fix For: llap
>
>
> {code}
> Caused by: java.io.IOException: ORC compression buffer size (0) is smaller
> than LLAP low-level cache minimum allocation size (131072). Decrease the
> value for hive.llap.io.cache.orc.alloc.min
> at
> org.apache.hadoop.hive.llap.io.encoded.OrcEncodedDataReader.callInternal(OrcEncodedDataReader.java:137)
> at
> org.apache.hadoop.hive.llap.io.encoded.OrcEncodedDataReader.callInternal(OrcEncodedDataReader.java:48)
> at
> org.apache.hadoop.hive.common.CallableWithNdc.call(CallableWithNdc.java:37)
> ... 4 more
> {code}
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