Re: Blocking Inserts

2012-07-12 Thread Martin Alig
onfigurations and how they affect your insert performance. > > On ganglia, also check whether you have a compaction queue spiking > during these timeouts. > --Suraj > > > On Thu, Jun 21, 2012 at 4:27 AM, Martin Alig > wrote: > > Thank you for the suggestions.

Re: Blocking Inserts

2012-06-21 Thread Martin Alig
's going on it's tough to know for sure. > > > > I would turn on GC logging and make sure that is not playing a part, get > > metrics on IO while this is going on, and look through the logs to see > what > > is happening when you notice the pause. > >

Blocking Inserts

2012-06-20 Thread Martin Alig
Hi I'm doing some evaluations with HBase. The workload I'm facing is mainly insert-only. Currently I'm inserting 1KB rows, where 100Bytes go into one column. I have the following cluster machines at disposal: Intel Xeon L5520 2.26 Ghz (Nehalem, with HT enabled) 24 GiB Memory 1 GigE 2x 15k RPM Sa