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From Stack <st...@duboce.net>
Subject Re: HBase Read and Write Issues in Mutlithreaded Environments
Date Fri, 15 Jul 2011 16:12:48 GMT
On Fri, Jul 15, 2011 at 8:30 AM, Srikanth P. Shreenivas
<Srikanth_Shreenivas@mindtree.com> wrote:
> Hi St.Ack,
>
> I stumbled upon http://hbase.apache.org/book.html#d730e4957 in one of the other mail
threads in HBase user mailing list.
>
> We realized that we were running JVM 1.6.0_20-b02, and hence, we tried adding -XX:+UseMembar
as suggested in above mentioned FAQ.
> This seems to have resolved the issue.  I ran the test app for 20 minutes with no read
timeouts.
>
>

Ugh.  Sorry.  I should have remembered that one (Thanks for adding to
book Doug -- its an important one to have in there I'd say).   We run
u24 at our place w/o -XX:+UseMembar

St.Ack

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