There are 2 CF on 2 separate region server. And yes, I have not pre-split the regions as I was told that we should let HBase handle that automatically.
Is there a way to set autoflush when using HTableDescriptor? On Tue, Oct 9, 2012 at 10:50 AM, Doug Meil <doug.m...@explorysmedical.com>wrote: > > So you're running on a single regionserver? > > > > > On 10/9/12 1:44 PM, "Mohit Anchlia" <mohitanch...@gmail.com> wrote: > > >I am using HTableInterface as a pool but I don't see any setautoflush > >method. I am using 0.92.1 jar. > > > >Also, how can I see if RS is getting overloaded? I looked at the UI and I > >don't see anything obvious: > > > >equestsPerSecond=0, numberOfOnlineRegions=1, numberOfStores=1, > >numberOfStorefiles=1, storefileIndexSizeMB=0, rootIndexSizeKB=1, > >totalStaticIndexSizeKB=0, totalStaticBloomSizeKB=0, memstoreSizeMB=27, > >readRequestsCount=126, writeRequestsCount=96157, compactionQueueSize=0, > >flushQueueSize=0, usedHeapMB=44, maxHeapMB=3976, blockCacheSizeMB=8.79, > >blockCacheFreeMB=985.34, blockCacheCount=11, blockCacheHitCount=23, > >blockCacheMissCount=28, blockCacheEvictedCount=0, blockCacheHitRatio=45%, > >blockCacheHitCachingRatio=67%, hdfsBlocksLocalityIndex=100 > > > >On Tue, Oct 9, 2012 at 10:32 AM, Doug Meil > ><doug.m...@explorysmedical.com>wrote: > > > >> > >> It's one of those "it depends" answers. > >> > >> See this firstŠ > >> > >> http://hbase.apache.org/book.html#perf.writing > >> > >> Š Additionally, one thing to understand is where you are writing data. > >> Either keep track of the requests per RS over the period (e.g., the web > >> interface), or you can also track it on the client side with... > >> > >> > >> > http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/client/HTable.htm > >>l# > >> getRegionLocation%28byte[],%20boolean%29 > >> > >> > >> Š to know if you are continually hitting the same RS or spreading the > >>load. > >> > >> > >> > >> On 10/9/12 1:27 PM, "Mohit Anchlia" <mohitanch...@gmail.com> wrote: > >> > >> >I just have 5 stress client threads writing timeseries data. What I > >>see is > >> >after few mts HBaseClient slows down and starts to take 4 secs. Once I > >> >kill > >> >the client and restart it stays at sustainable rate for about 2 mts and > >> >then again it slows down. I am wondering if there is something I > >>should be > >> >doing on the HBaseclient side? All the request are similar in terms of > >> >data. > >> > >> > >> > > >
