Junheng Gong created HBASE-13678:
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Summary: Hbase client block on region call back
Key: HBASE-13678
URL: https://issues.apache.org/jira/browse/HBASE-13678
Project: HBase
Issue Type: Bug
Affects Versions: 0.94.15
Environment: CentOS 6.4 scala 2.11/java 1.7
Reporter: Junheng Gong
when batch get some data from cluster, the client will block some threads base
on region server amount
In code client use Future.get block a thread for each related region servers
and wait them finish one by one.
In our case we have 12 region servers, so most of time the client will cost 12
threads for a batch get, if we have many concurrent request it will OOM by can
not create native threads.
I suggest we use some kind async or call back to process region server's
response.
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