Re: RegionServer crashes silently under heavy RowKey scans

2013-01-30 Thread Jim Abramson
On Mon, Jan 28, 2013 at 12:14 PM, Jim Abramson mailto:j...@magnetic.com>> wrote: > Hi, > > We are testing HBase for some read-heavy batch operations, and > encountering frequent, silent RegionServer crashes. 'Silent' is interesting. Which files did you check? .log and the .out? Nothing in t

Re: RegionServer crashes silently under heavy RowKey scans

2013-01-28 Thread Stack
On Mon, Jan 28, 2013 at 12:14 PM, Jim Abramson wrote: > Hi, > > We are testing HBase for some read-heavy batch operations, and > encountering frequent, silent RegionServer crashes. 'Silent' is interesting. Which files did you check? .log and the .out? Nothing in the latter? > The post-mor

RegionServer crashes silently under heavy RowKey scans

2013-01-28 Thread Jim Abramson
Hi, We are testing HBase for some read-heavy batch operations, and encountering frequent, silent RegionServer crashes. The application does many thousands of very selective row scans on a dataset containing several hundred million rows (less than 200GB overall), via thrift. We have encountere