The JIRA ticket is as follows. https://issues.apache.org/jira/browse/HBASE-6033 (Original) https://issues.apache.org/jira/browse/HBASE-6124 (Backport to 0.92.1, etc..)
On Thu, Nov 8, 2012 at 11:19 AM, Jeremy Carroll <[email protected]> wrote: > What I have done is using HBase 0.92.2+ (I believe commited in HBase 0.94) > there is a compaction status on the table via the Web-UI. I do not know if > it's exposed anywhere else. For my own internal compaction tools, I scrape > that status from the web UI to determine if a table is in minor / major / > none compaction. > > > https://s3.amazonaws.com/uploads.hipchat.com/10509/150181/39jhoklr70xbmfj/Screen%20Shot%202012-11-08%20at%2011.19.32%20AM.png > > > On Thu, Nov 8, 2012 at 10:31 AM, yun peng <[email protected]> wrote: > >> Yes, JMX exposes compaction time. My cluster has JMX enabled, and I can >> view certain statistics from remote jconsole. >> >> However, I dont find any reference talking about how to write a Java >> program to collect a specific statistics, like compaction time available >> in >> region server status. Does anyone here have experience in writing >> low-level >> code to collect JMX data, instead of using jconsole or other high-level >> tools... >> >> PS: I have found some sample code >> here< >> http://hadoop.apache.org/docs/current/api/org/apache/hadoop/metrics/package-summary.html >> >, >> yet the API is deprecated. >> Regards, >> Yun >> On Thu, Nov 8, 2012 at 6:43 AM, Jean-Marc Spaggiari < >> [email protected] >> > wrote: >> >> > Please someone correct me if I'm wrong, but I think there is some >> > information exposed to JMX which give you the duration (and size) of >> > the last compaction. >> > >> > JM >> > >> > 2012/11/8, PG <[email protected]>: >> > > Hi, thanks for the comments. One thing is,,,, shouldn't web UI comes >> from >> > > the hbase API, or can I issue function call to get the progress of >> > > compaction?. >> > > Hun >> > > >> > > On Nov 8, 2012, at 1:33 AM, ramkrishna vasudevan >> > > <[email protected]> wrote: >> > > >> > >> There is no interface which says that the major compaction is >> completed. >> > >> But you can see that major compaction is in progress from the web UI. >> > >> Sorry if am wrong here. >> > >> >> > >> Regards >> > >> Ram >> > >> >> > >> On Thu, Nov 8, 2012 at 11:38 AM, yun peng <[email protected]> >> > wrote: >> > >> >> > >>> Hi, All, >> > >>> I want to measure the duration of a major compaction in HBase. Since >> > the >> > >>> function call majorCompact is asynchronous, I may need to manually >> > check >> > >>> when the major compaction is done. Does Hbase (as of version 0.92.4) >> > >>> provide an interface to determine completion of major compaction? >> > >>> Thanks. >> > >>> Yun >> > >>> >> > > >> > >> > >
