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From Michał Podsiadłowski <podsiadlow...@gmail.com>
Subject Re: Hbase fails to learn about table split
Date Fri, 05 Feb 2010 06:56:17 GMT
> Hi Stack,
Next time, when you see something like this:
> >> java.io.IOException: java.io.IOException: Cannot open filename
> >> /hbase/filmContributors/1670715971/content/3783592739034234831
> ...try getting it with a new client as in:
> $ ./bin/hadoop fs -get
> /hbase/filmContributors/1670715971/content/3783592739034234831 .
> I did this, i've checked if there is this file from web UI and the whole
dir was missing.
No wounder because it was deleted after split by node that was hosting
partent region before split.

2010-02-03 15:33:35,902 INFO org.apache.hadoop.hdfs.server.
namenode.FSNamesystem.audit: ugi=mpodsiadlowski,devel, [some privileges]
       ip=/ cmd=delete      src=/hbase/filmContributors/1670715971
dst=null        perm=null

So the order of events was sth like this

15:32:35, - split of region hosted by
15:32:37   one of the new regions assigned to
15.33.35 removes whole dir with the file that is causing
15.33.49 tries to performe compaction and failes

The below is really bad usually indicative of a stressed hdfs (or one
> not configered for the load its taking on):
> > IOException: Could not complete write to file
I will try to tune a bit hdsf. And see what will happen

> I tried to follow your pastebin link but it is empty for me.  It works for
> you?
> St.Ack
Unfortunatly something got broken with my pastebin, i will put new one as
sone as i get to work.


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