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From Jia Wang <ra...@appannie.com>
Subject Re: Frequent scan time outs in multiple region servers in same time intervals
Date Thu, 14 Nov 2013 10:54:28 GMT
Is it a Scan for Map/Reduce? Or it's only a regular scan in which case
maybe you could consider to set the start and end position of your scan to
limit the operation.


On Thu, Nov 14, 2013 at 6:23 PM, Sandeep L <sandeepvreddy@outlook.com>wrote:

> Hi,
> In recent times we are seeing frequent scan time outs in multiple region
> servers of our production cluster. Due to this our HBase cluster is not
> responding for 5 to 10 minutes for any queries & that causing huge problem
> for us.
> We are getting following error in multiple region servers almost in same
> time intervals
> 2013-11-14 00:16:30,178 INFO
> org.apache.hadoop.hbase.regionserver.HRegionServer: Scanner
> -8978491571406751432 lease expired on region
> TableName,news,1383881528749.1e3f228e7a7a5a13d117af309f252c6c
> This error is occurring on multiple tables.
> Can suggest us what could be the cause and how to resolve the issue.
> Thanks,Sandeep.

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