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From Ted Yu <yuzhih...@gmail.com>
Subject Re: initial experience with HBase 0.90.1 rc0
Date Thu, 10 Feb 2011 23:25:43 GMT
hbase-0.90.0-tests.jar and hbase-0.90.1.jar co-exist
Would this be a problem ?

On Thu, Feb 10, 2011 at 3:16 PM, Ryan Rawson <ryanobjc@gmail.com> wrote:

> You don't have both the old and the new hbase jars in there do you?
>
> -ryan
>
> On Thu, Feb 10, 2011 at 3:12 PM, Ted Yu <yuzhihong@gmail.com> wrote:
> > .META. went offline during second flow attempt.
> >
> > The time out I mentioned happened for 1st and 3rd attempts. HBase was
> > restarted before the 1st and 3rd attempts.
> >
> > Here is jstack:
> > http://pastebin.com/EHMSvsRt
> >
> > On Thu, Feb 10, 2011 at 3:04 PM, Stack <stack@duboce.net> wrote:
> >
> >> So, .META. is not online?  What happens if you use shell at this time.
> >>
> >> Your attachement did not come across Ted.  Mind postbin'ing it?
> >>
> >> St.Ack
> >>
> >> On Thu, Feb 10, 2011 at 2:41 PM, Ted Yu <yuzhihong@gmail.com> wrote:
> >> > I replaced hbase jar with hbase-0.90.1.jar
> >> > I also upgraded client side jar to hbase-0.90.1.jar
> >> >
> >> > Our map tasks were running faster than before for about 50 minutes.
> >> However,
> >> > map tasks then timed out calling flushCommits(). This happened even
> after
> >> > fresh restart of hbase.
> >> >
> >> > I don't see any exception in region server logs.
> >> >
> >> > In master log, I found:
> >> >
> >> > 2011-02-10 18:24:15,286 DEBUG
> >> > org.apache.hadoop.hbase.master.handler.OpenedRegionHandler: Opened
> region
> >> > -ROOT-,,0.70236052 on sjc1-hadoop6.X.com,60020,1297362251595
> >> > 2011-02-10 18:24:15,349 INFO
> >> org.apache.hadoop.hbase.catalog.CatalogTracker:
> >> > Failed verification of .META.,,1 at address=null;
> >> > org.apache.hadoop.hbase.NotServingRegionException:
> >> > org.apache.hadoop.hbase.NotServingRegionException: Region is not
> online:
> >> > .META.,,1
> >> > 2011-02-10 18:24:15,350 DEBUG
> org.apache.hadoop.hbase.zookeeper.ZKAssign:
> >> > master:60000-0x12e10d0e31e0000 Creating (or updating) unassigned node
> for
> >> > 1028785192 with OFFLINE state
> >> >
> >> > I am attaching region server (which didn't respond to stop-hbase.sh)
> >> jstack.
> >> >
> >> > FYI
> >> >
> >> > On Thu, Feb 10, 2011 at 10:10 AM, Stack <stack@duboce.net> wrote:
> >> >>
> >> >> Thats probably enough Ted.  The 0.90.1 hbase-default.xml has an extra
> >> >> config. to enable the experimental HBASE-3455 feature but you can
> copy
> >> >> that over if you want to try playing with it (it defaults off so
> you'd
> >> >> copy over the config. if you wanted to set it to true).
> >> >>
> >> >> St.Ack
> >> >
> >> >
> >>
> >
>

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