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From Ted Yu <yuzhih...@gmail.com>
Subject Re: Rows added but not showing up (UNCLASSIFIED)
Date Thu, 01 Jul 2010 16:28:10 GMT
HBase 0.20.5 has been released.
You can try to reproduce the problem for 0.20.5

On Thu, Jul 1, 2010 at 7:06 AM, Schlesiger, Chris (Civ, ARL/CISD) <
chris.schlesiger@us.army.mil> wrote:

> Classification: UNCLASSIFIED
> Caveats: NONE
> I'm having a strange issue that I need some help with.
> I'm running a hadoop cluster with 1 name server, 26 data nodes, 1
> zookeeper server, 1 hmaster, and 26 region servers with Hadoop 0.20.1
> and Hbase 0.20.4.
> I have a java program inserting rows from raw xml files into HBase. I've
> run it a few times and I keep running into this issue. My program
> reports no errors when inserting the rows and column families. No
> exceptions are raised. However, when I go into the hbase shell and count
> the rows I've just inserted, it reports 0 rows.
> My program is not complicated. It's just opening an parsing an xml file,
> looping through using the same HTable object and creating Put objects
> and adding the data, and putting it in. I'm also using Get objects to
> check for duplicates before doing the Put, all using the same HTable.
> Seems straightforward to me.
> Last night I imported 246K rows, and this morning the shell says there
> are still 0 rows. I've used hadoop to browse the Hbase folder and the
> folder for my table exists and definitely does contain the folders for
> my column families and there are large files there which would indicate
> that the data is present in Hadoop, but HBase is still reporting no
> data. I've run major_compact on .META. and my table to no avail.
> I've looked at the hmaster log, and I think I tracked down the right
> hregion log (based on what the hbase web page says is running for that
> table) and I see no exceptions. I'm still on the default log levels of
> info and debug as installed by Hbase.
> I'm totally mystified. Has anyone seen anything similar to this and has
> an idea what to look for? I haven't posted the logs anywhere yet because
> that's a bit tricky for me to get them out of the lab (we're running
> standalone, not connected to the net).
> Thanks for any help in advance
> Chris Schlesiger
> cschles@arl.army.mil
> Electronics/Software Engineer
> U.S. Army Research Lab
> Classification: UNCLASSIFIED
> Caveats: NONE

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