HBASE-13202 and Matteo Bertozzi can answer your question?
-Vlad there is On Fri, Mar 11, 2016 at 3:02 PM, Ganesh V <[email protected]> wrote: > Hello- > > I am evaluating HBase for storage of time-series data and see periodic > degradation of the cluster happening at the start of the hour, every hour, > for about 10mins. I see "WALProcedureStoreSyncThread" (wal rolling?) in the > logs during this time like so: > > 2016-03-01 06:09:35,151 INFO [WALProcedureStoreSyncThread] > wal.WALProcedureStore: Remove log: > hdfs://hdmaster01:54310/hbase/MasterProcWALs/state-00000000000000000009.log > > In my tests, I'm pushing 1million data points (each about 200bytes in size) > into the cluster each minute at the same time using 5000 threads. I am also > querying 1000 of these data points each minute to test latency, errors, and > performance. The cluster runs absolutely fine except for those ~10mins at > the start of every hour when both reads and writes are affected. Could > someone suggest which part of HBase needs tuning? Thanks! > > > -Ganesh >
