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Posted to gitbox@hive.apache.org by GitBox <gi...@apache.org> on 2021/01/14 08:10:16 UTC
[GitHub] [hive] abstractdog opened a new pull request #1868: HIVE-24626: LLAP: reader threads could be starvated if all IO elevator threads are busy to enqueue to another readers with full queue
abstractdog opened a new pull request #1868:
URL: https://github.com/apache/hive/pull/1868
### What changes were proposed in this pull request?
Llap daemon should enforce the proper number of io threads (>= executors)
### Why are the changes needed?
It can cause query hang otherwise.
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
On Cloudera Data Warehouse.
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[GitHub] [hive] abstractdog commented on pull request #1868: HIVE-24626: LLAP: reader threads could be starvated if all IO elevator threads are busy to enqueue to another readers with full queue
Posted by GitBox <gi...@apache.org>.
abstractdog commented on pull request #1868:
URL: https://github.com/apache/hive/pull/1868#issuecomment-760918210
thanks for the review @prasanthj ! I'm trying to achieve a green test and then I'll merge this
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[GitHub] [hive] abstractdog edited a comment on pull request #1868: HIVE-24626: LLAP: reader threads could be starvated if all IO elevator threads are busy to enqueue to another readers with full queue
Posted by GitBox <gi...@apache.org>.
abstractdog edited a comment on pull request #1868:
URL: https://github.com/apache/hive/pull/1868#issuecomment-760918210
thanks for the review @prasanthj, @pgaref ! I'm trying to achieve a green test and then I'll merge this
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[GitHub] [hive] abstractdog merged pull request #1868: HIVE-24626: LLAP: reader threads could be starvated if all IO elevator threads are busy to enqueue to another readers with full queue
Posted by GitBox <gi...@apache.org>.
abstractdog merged pull request #1868:
URL: https://github.com/apache/hive/pull/1868
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