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Date: Mon, 8 Apr 2013 14:07:19 -0700
From: Randy Fox <randy.fox@connexity.com>
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To: "user@hbase.apache.org" <user@hbase.apache.org>
Subject: Scanner returning subset of data
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I have a needle-in-the-haystack type scan.  I have tried to read all the 
issues with ScannerTimeoutException and LeaseException, but do have not 
seen anyone report what I am seeing.

Running 0.92.1-cdh4.1.1.  All config wrt to timeouts and periods are 
default: 60s.

When I run a scanner that will return few results and my cache setting 
is a bit too high for results to return in 60 seconds, i sometimes get a 
subset of results (the last few returnable rows) and no exception.  it 
may take a while to get those results.  Other times I get the 
LeaseException, the ScannerTimeoutException, or the 
RetriesExhaustedException. I can see throwExceptionIfCallerDisconnected 
in RS logs.

The incorrect return set has me very concerned.  I can easily reproduce 
this with my own code or hbase shell.

Any help is greatly appreciated.

Cheers,

Randy Fox