This question should be directed to user@ Can you use third party site for the images - they didn't go through.
On Wed, Oct 7, 2015 at 5:35 PM, UI-JIN LIM <uj...@lgcns.com> wrote: > Hi. This is Ui Jin, Lim in Korea, LG CNS > > > > We had setup and are operating hbase 0.98.13 on our customer, iptv > Company. > > Our customer claim about this spike. Following is our status. > > > > . We had been operating with BlockCache(heap) for 3 months. The ratio of > above 100ms has been reached 6.69% of total transaction. > > The following graph show the trend of executions, above 100ms per > minute, at June 17th. (This is the response time of 2~3 Hbase > transactions) > > [image: cid:image001.jpg@01D1011A.5E93FF70] > > > > - After Hbase restarting at June 18th, The spikes had been reduced > dramatically. But its ratio had been increasing continuously. > > [image: cid:image002.png@01D1011A.5E93FF70] > > > > - We had adopted off-heap bucket cache at August 19th. But the increasing > does not disappear. > > [image: cid:image002.png@01D10103.82E488C0] > > [image: cid:image002.png@01D10103.82E488C0] > > > > - We set HBase to log slow query which have above 10ms execution time. All > RegionServer logs show increasing its counts. > > > > [image: cid:image005.png@01D1011A.5E93FF70] > > > > > > What we concern is not the spike itself but its incremental trend. > > There is no increment of transactions and dataset. > > I ask your thoughts about this issue. > > > > > > > > > > ------------------------------------------------------------- > > *UI JIN, LIM* > > *DNA 3.0** - **LG CNS* > > Data Architecture Advisory > > Big Data Technical Support Team > > Mobile : +82) 010-8307-1210 > > >
