Better HTable resource consumption in CoprocessorHost
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Key: HBASE-5164
URL: https://issues.apache.org/jira/browse/HBASE-5164
Project: HBase
Issue Type: Sub-task
Components: coprocessors
Reporter: Lars Hofhansl
Priority: Minor
Fix For: 0.94.0
HBASE-4805 allows for more control over HTable's resource consumption.
This is currently not used by CoprocessorHost (even though it would even be
more critical to control this inside the RegionServer).
It's not immediate obvious how to do that.
Maybe CoprocessorHost should maintain a lazy ExecutorService and HConnection
and reuse both for all HTables retrieved via
CoprocessorEnvironment.getTable(...).
Not sure how critical this is, but I feel without this it is dangerous to use
getTable, as it would lead to all resource consumption problems we find in the
client, but inside a crucial part of the HBase servers.
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