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Posted to hdfs-dev@hadoop.apache.org by "Brahma Reddy Battula (JIRA)" <ji...@apache.org> on 2016/03/08 04:33:40 UTC
[jira] [Created] (HDFS-9917) IBR accumulate more objects when SNN
was down for sometime.
Brahma Reddy Battula created HDFS-9917:
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Summary: IBR accumulate more objects when SNN was down for sometime.
Key: HDFS-9917
URL: https://issues.apache.org/jira/browse/HDFS-9917
Project: Hadoop HDFS
Issue Type: Bug
Reporter: Brahma Reddy Battula
Assignee: Brahma Reddy Battula
SNN was down for sometime because of some reasons..After restarting SNN,it became unreponsive because
- 29 DN's sending IBR in each 5 million ( most of them are delete IBRs), where as each datanode had only ~2.5 million blocks.
- GC can't trigger on this objects since all will be under RPC queue.
To recover this( to clear this objects) ,restarted all the DN's one by one..This issue happened in 2.4.1 where split of blockreport was not available.
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