Hi David, Thanks for your email. We have tried this fix from MSLAB's. It didn't make any difference. I think it is probably down to our lack of knowledge and our configuration. We did try some of the CDH builds from Cloudera and had varying results.
What other information could I provide? The servers are 4-5 years old, just running on IDE 750gb drives (for testing) with 2-4 gb of RAM in each of the 16 servers. We only have a 100MB network at present. Should Hbase work on this level of hardware? Up to 100 million rows. We are obviously happy for it to take a while but it shouldn't collapse? Regards Stuart -----Original Message----- From: Buttler, David [mailto:[email protected]] Sent: 21 March 2011 20:46 To: [email protected] Subject: RE: HBase Stability Have you seen Todd Lipcon's post on MSLAB's? http://www.cloudera.com/blog/2011/02/avoiding-full-gcs-in-hbase-with-mem store-local-allocation-buffers-part-1/ This is a new feature in 0.90.1 that prevents memory fragmentation during write loads. You do have to explicitly enable this, but it seems a likely culprit for unstable writes But, of course, this is just a shot in the dark given the limited information you have provided. Dave -----Original Message----- From: Ted Dunning [mailto:[email protected]] Sent: Monday, March 21, 2011 1:19 PM To: [email protected] Cc: Stuart Scott Subject: Re: HBase Stability Is there a reason you are not using a recent version of 0.90? On Mon, Mar 21, 2011 at 1:17 PM, Stuart Scott <[email protected]>wrote: > We are using Hbase 0.89.20100924+28, r >
