Handle RejectedExecutionException in HTable
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                 Key: HBASE-3692
                 URL: https://issues.apache.org/jira/browse/HBASE-3692
             Project: HBase
          Issue Type: Improvement
    Affects Versions: 0.90.1
            Reporter: Jean-Daniel Cryans
             Fix For: 0.92.0


A user on IRC yesterday had an issue with RejectedExecutionException coming out 
of HTable sometimes. Apart from being very confusing to the user as it comes 
with no message at all, it exposes the HTable internals. 

I think we should handle it and instead throw something like 
DontUseHTableInMultipleThreadsException or something more clever. In his case, 
the user had a HTable leak with the pool that he was able to figure out once I 
told him what to look for.

It could be an unchecked exception and we could consider adding in 0.90 but 
marking for 0.92 at the moment.

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