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Posted to hdfs-dev@hadoop.apache.org by "Bharat Viswanadham (JIRA)" <ji...@apache.org> on 2019/03/11 22:24:00 UTC
[jira] [Created] (HDDS-1250) In OM HA AllocateBlock call from OM
should not happen on Ratis
Bharat Viswanadham created HDDS-1250:
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Summary: In OM HA AllocateBlock call from OM should not happen on Ratis
Key: HDDS-1250
URL: https://issues.apache.org/jira/browse/HDDS-1250
Project: Hadoop Distributed Data Store
Issue Type: Bug
Reporter: Bharat Viswanadham
Assignee: Bharat Viswanadham
In OM HA, currently when allocateBlock is called, in applyTransaction() on all OM nodes, we make a call to SCM and write the allocateBlock information into OM DB. The problem with this is, every OM allocateBlock and appends new BlockInfo into OMKeyInfom and also this a correctness issue. (As all OM's should have the same block information for a key, even though eventually this might be changed during key commit)
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