This was a great thread-- it helped me a great deal in getting hbase
up and running. Thanks very much to all of you.
I upgraded to the 0.15.0 version of hadoop/hbase (as advised) and got
much further than I did with the 0.14.2 release. I ran into a few
things I wanted to ask you guys about--
1) I'm in the process of uploading some data (~60GB) to an HTable on
a single server running hadoop/hbase (i.e., namenode and datanode are
on the same machine, as is the HMaster and HRegionServer. It's a cozy
setup.) in chunks of ~500MB. As the upload runs, the regions
occasionally get split, at which point my client code gets handed back
a NotServingRegionException on whatever region the table is splitting.
Right now, my strategy is to put the thread to sleep for a few
seconds and then retry the operations, ala the "recalibrate" function
in MultiRegionTable.java in the unit tests. It looks like eventually
the HRegionServer gets up to date and everything goes back to normal.
Is this the best way for me to handle this? I would also appreciate
any other tips you guys might have on optimizing this sort of bulk
upload-- once I get this setup, I have a very, very large dataset that
I would like to store in HBase.
2) I was running one of these batch-style uploads last night on an
HTable that I configured w/BloomFilters on a couple of my column
families. During one of the compaction operations, I got the
following exception--
FATAL org.apache.hadoop.hbase.HRegionServer: Set stop flag in
regionserver/0:0:0:0:0:0:0:0:60020.splitOrCompactChecker
java.lang.ArrayIndexOutOfBoundsException
at java.lang.System.arraycopy(Native Method)
at sun.security.provider.DigestBase.engineUpdate(DigestBase.java:102)
at sun.security.provider.SHA.implDigest(SHA.java:94)
at sun.security.provider.DigestBase.engineDigest(DigestBase.java:161)
at sun.security.provider.DigestBase.engineDigest(DigestBase.java:140)
at
java.security.MessageDigest$Delegate.engineDigest(MessageDigest.java:531)
at java.security.MessageDigest.digest(MessageDigest.java:309)
at org.onelab.filter.HashFunction.hash(HashFunction.java:125)
at org.onelab.filter.BloomFilter.add(BloomFilter.java:99)
at
org.apache.hadoop.hbase.HStoreFile$BloomFilterMapFile$Writer.append(HStoreFile.java:895)
at org.apache.hadoop.hbase.HStore.compact(HStore.java:899)
at org.apache.hadoop.hbase.HStore.compact(HStore.java:728)
at org.apache.hadoop.hbase.HStore.compactHelper(HStore.java:632)
at org.apache.hadoop.hbase.HStore.compactHelper(HStore.java:564)
at org.apache.hadoop.hbase.HStore.compact(HStore.java:559)
at org.apache.hadoop.hbase.HRegion.compactStores(HRegion.java:717)
at
org.apache.hadoop.hbase.HRegionServer$SplitOrCompactChecker.checkForSplitsOrCompactions(HRegionServer.java:198)
at
org.apache.hadoop.hbase.HRegionServer$SplitOrCompactChecker.chore(HRegionServer.java:188)
at org.apache.hadoop.hbase.Chore.run(Chore.java:58)
Note that this wasn't the first compaction that was run (there were
others before it that ran successfully) and that the region hadn't
been split at this point. I defined the BloomFilterType.BLOOMFILTER
on a couple of the columnfamilies, w/the largest one having ~100000
distinct entries. I don't know which of these caused the failure, but
I noticed that 100000 is quite a bit larger than the # of entries used
in the testcases, so I'm wondering if that might be the problem.
Thanks again, the 0.15.0 stuff looks very good-
Josh
On 10/19/07, edward yoon <[EMAIL PROTECTED]> wrote:
>
> You're welcome.
> If you have any needs, questions, or comments in Hbase,
> please let us know!
>
> Edward.
> ----
> B. Regards,
> Edward yoon (Assistant Manager/R&D Center/NHN, corp.)
> +82-31-600-6183, +82-10-7149-7856
>
>
> > Date: Fri, 19 Oct 2007 14:33:45 +0800
> > From: [EMAIL PROTECTED]
> > To: [email protected]
> > Subject: Re: A basic question on HBase
> >
> > Dear edward yoon & Michael Stack,
> >
> > After using the hadoop branch-0.15, hbase runs correctly.
> >
> > Thank you very much!
> >
> > Best wishes,
> > Bin YANG
> >
> > On 10/19/07, Bin YANG wrote:
> >> Thank you! I can download it now!
> >>
> >> On 10/19/07, edward yoon wrote:
> >>>
> >>> Run the following on the command-line:
> >>>
> >>> $ svn co http://svn.apache.org/repos/asf/lucene/hadoop/trunk hadoop
> >>>
> >>> See also for more information about the Hbase and Hbase Shell client
> >>> program:
> >>>
> >>> - http://wiki.apache.org/lucene-hadoop/Hbase
> >>> - http://wiki.apache.org/lucene-hadoop/Hbase/HbaseShell
> >>>
> >>>
> >>> Edward.
> >>> ----
> >>> B. Regards,
> >>> Edward yoon (Assistant Manager/R&D Center/NHN, corp.)
> >>> +82-31-600-6183, +82-10-7149-7856
> >>>
> >>>
> >>>> Date: Fri, 19 Oct 2007 13:46:51 +0800
> >>>> From: [EMAIL PROTECTED]
> >>>> To: [email protected]
> >>>> Subject: Re: A basic question on HBase
> >>>>
> >>>> Dear Michael Stack:
> >>>>
> >>>> I am afraid that I cannot connect to the svn,
> >>>>
> >>>> Error: PROPFIND request failed on '/viewvc/lucene/hadoop/trunk'
> >>>> Error: PROPFIND of '/viewvc/lucene/hadoop/trunk': 302 Found
> >>>> (http://svn.apache.org)
> >>>>
> >>>> and
> >>>>
> >>>> Error: PROPFIND request failed on
> >>>> '/viewvc/lucene/hadoop/branches/branch-0.15'
> >>>> Error: PROPFIND of '/viewvc/lucene/hadoop/branches/branch-0.15': 302
> >>>> Found (http://svn.apache.org)
> >>>>
> >>>> Would you please send me a 0.15 version of hadoop, or give some
> >>>> information on how to connect to the svn successfully?
> >>>>
> >>>> Best wishes,
> >>>> Bin YANG
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>> On 10/19/07, Michael Stack wrote:
> >>>>> (Ignore my last message. I had missed your back and forth with Edward).
> >>>>>
> >>>>> Regards step 3. below, you are starting both mapreduce and dfs daemons.
> >>>>> You only need dfs daemons running hbase so you could do
> >>>>> ./bin/start-dfs.sh instead.
> >>>>>
> >>>>> Are you using hadoop 0.14.x? (It looks like it going by the commands
> >>>>> and log excerpt below). If so, please use TRUNK or the 0.15.0 candidate
> >>>>> (Branch is here
> >>>>> http://svn.apache.org/viewvc/lucene/hadoop/branches/branch-0.15/).
> >>>>> There is a big difference between hbase 0.14.0 and 0.15.0 (The 0.15.0
> >>>>> candidate contains the first hbase release). For example vestige log
> >>>>> files are properly split and distributed in later hbases where before
> >>>>> they threw the "Can not start region server because..." exception.
> >>>>>
> >>>>> As Edward points out, the master does not seem to be getting the region
> >>>>> server 'report-for-duty' message (which doesn't jibe with the region
> >>>>> server log that says -ROOT- has been deployed because master assigns
> >>>>> regions).
> >>>>>
> >>>>> Regards your not being able to reformat -- presuming no valuable data in
> >>>>> your hdfs, that all is running on localhost, and that you are moving
> >>>>> from hadoop 0.14.0 to 0.15.0 -- just remove /tmp/hadoop-hadoop dir.
> >>>>>
> >>>>> St.Ack
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>> Bin YANG wrote:
> >>>>>> Dear edward,
> >>>>>>
> >>>>>> I will show you the steps what I have done:
> >>>>>>
> >>>>>> 1. hadoop-site.xml
> >>>>>>
> >>>>>>
> >>>>>> fs.default.name
> >>>>>> localhost:9000
> >>>>>> Namenode
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>> mapred.job.tracker
> >>>>>> localhost:9001
> >>>>>> JobTracker
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>> dfs.replication
> >>>>>> 1
> >>>>>>
> >>>>>>
> >>>>>> 2. /hadoop-0.14.2$ bin/hadoop namenode -format
> >>>>>> 3. bin/start-all.sh
> >>>>>> 4. hbase.site.xml
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>> hbase.master
> >>>>>> localhost:60000
> >>>>>> The host and port that the HBase master runs at.
> >>>>>> TODO: Support 'local' (All running in single context).
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>> hbase.regionserver
> >>>>>> localhost:60010
> >>>>>> The host and port a HBase region server runs at.
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>> 5. bin/hbase-start.sh
> >>>>>>
> >>>>>> The log:
> >>>>>> 1. hbase-hadoop-regionserver-yangbin.log
> >>>>>>
> >>>>>> 2007-10-18 15:40:58,588 INFO org.apache.hadoop.util.NativeCodeLoader:
> >>>>>> Loaded the native-hadoop library
> >>>>>> 2007-10-18 15:40:58,592 INFO
> >>>>>> org.apache.hadoop.io.compress.zlib.ZlibFactory: Successfully loaded &
> >>>>>> initialized native-zlib library
> >>>>>> 2007-10-18 15:40:58,690 INFO org.apache.hadoop.ipc.Server: IPC Server
> >>>>>> listener on 60010: starting
> >>>>>> 2007-10-18 15:40:58,692 INFO org.apache.hadoop.ipc.Server: IPC Server
> >>>>>> handler 3 on 60010: starting
> >>>>>> 2007-10-18 15:40:58,694 INFO org.apache.hadoop.ipc.Server: IPC Server
> >>>>>> handler 4 on 60010: starting
> >>>>>> 2007-10-18 15:40:58,692 INFO org.apache.hadoop.ipc.Server: IPC Server
> >>>>>> handler 2 on 60010: starting
> >>>>>> 2007-10-18 15:40:58,691 INFO org.apache.hadoop.ipc.Server: IPC Server
> >>>>>> handler 1 on 60010: starting
> >>>>>> 2007-10-18 15:40:58,696 INFO org.apache.hadoop.ipc.Server: IPC Server
> >>>>>> handler 5 on 60010: starting
> >>>>>> 2007-10-18 15:40:58,691 INFO org.apache.hadoop.ipc.Server: IPC Server
> >>>>>> handler 0 on 60010: starting
> >>>>>> 2007-10-18 15:40:58,696 INFO org.apache.hadoop.ipc.Server: IPC Server
> >>>>>> handler 6 on 60010: starting
> >>>>>> 2007-10-18 15:40:58,697 INFO org.apache.hadoop.ipc.Server: IPC Server
> >>>>>> handler 7 on 60010: starting
> >>>>>> 2007-10-18 15:40:58,698 INFO org.apache.hadoop.ipc.Server: IPC Server
> >>>>>> handler 8 on 60010: starting
> >>>>>> 2007-10-18 15:40:58,699 INFO org.apache.hadoop.hbase.HRegionServer:
> >>>>>> HRegionServer started at: 127.0.1.1:60010
> >>>>>> 2007-10-18 15:40:58,709 INFO org.apache.hadoop.ipc.Server: IPC Server
> >>>>>> handler 9 on 60010: starting
> >>>>>> 2007-10-18 15:40:58,867 INFO org.apache.hadoop.hbase.HStore: HStore
> >>>>>> online for --ROOT--,,0/info
> >>>>>> 2007-10-18 15:40:58,872 INFO org.apache.hadoop.hbase.HRegion: region
> >>>>>> --ROOT--,,0 available
> >>>>>> 2007-10-18 18:21:55,558 INFO org.apache.hadoop.ipc.Client: Retrying
> >>>>>> connect to server: localhost/127.0.0.1:60000. Already tried 1 time(s).
> >>>>>> 2007-10-18 18:21:56,577 INFO org.apache.hadoop.ipc.Client: Retrying
> >>>>>> connect to server: localhost/127.0.0.1:60000. Already tried 2 time(s).
> >>>>>> 2007-10-18 18:21:57,585 INFO org.apache.hadoop.ipc.Client: Retrying
> >>>>>> connect to server: localhost/127.0.0.1:60000. Already tried 3 time(s).
> >>>>>> 2007-10-18 18:21:58,593 INFO org.apache.hadoop.ipc.Client: Retrying
> >>>>>> connect to server: localhost/127.0.0.1:60000. Already tried 4 time(s).
> >>>>>> 2007-10-18 18:22:05,874 ERROR org.apache.hadoop.hbase.HRegionServer:
> >>>>>> Can not start region server because
> >>>>>> org.apache.hadoop.hbase.RegionServerRunningException: region server
> >>>>>> already running at 127.0.1.1:60010 because logdir
> >>>>>> /tmp/hadoop-hadoop/hbase/log_yangbin_60010 exists
> >>>>>> at org.apache.hadoop.hbase.HRegionServer.(HRegionServer.java:482)
> >>>>>> at org.apache.hadoop.hbase.HRegionServer.(HRegionServer.java:407)
> >>>>>> at org.apache.hadoop.hbase.HRegionServer.main(HRegionServer.java:1357)
> >>>>>>
> >>>>>> 2007-10-18 19:57:40,243 INFO org.apache.hadoop.util.NativeCodeLoader:
> >>>>>> Loaded the native-hadoop library
> >>>>>> 2007-10-18 19:57:40,274 INFO
> >>>>>> org.apache.hadoop.io.compress.zlib.ZlibFactory: Successfully loaded &
> >>>>>> initialized native-zlib library
> >>>>>> 2007-10-18 19:57:40,364 INFO org.apache.hadoop.ipc.Server: IPC Server
> >>>>>> listener on 60010: starting
> >>>>>> 2007-10-18 19:57:40,366 INFO org.apache.hadoop.ipc.Server: IPC Server
> >>>>>> handler 0 on 60010: starting
> >>>>>> 2007-10-18 19:57:40,367 INFO org.apache.hadoop.ipc.Server: IPC Server
> >>>>>> handler 1 on 60010: starting
> >>>>>> 2007-10-18 19:57:40,368 INFO org.apache.hadoop.ipc.Server: IPC Server
> >>>>>> handler 2 on 60010: starting
> >>>>>> 2007-10-18 19:57:40,368 INFO org.apache.hadoop.ipc.Server: IPC Server
> >>>>>> handler 3 on 60010: starting
> >>>>>> 2007-10-18 19:57:40,369 INFO org.apache.hadoop.ipc.Server: IPC Server
> >>>>>> handler 4 on 60010: starting
> >>>>>> 2007-10-18 19:57:40,370 INFO org.apache.hadoop.ipc.Server: IPC Server
> >>>>>> handler 5 on 60010: starting
> >>>>>> 2007-10-18 19:57:40,371 INFO org.apache.hadoop.ipc.Server: IPC Server
> >>>>>> handler 6 on 60010: starting
> >>>>>> 2007-10-18 19:57:40,371 INFO org.apache.hadoop.ipc.Server: IPC Server
> >>>>>> handler 7 on 60010: starting
> >>>>>> 2007-10-18 19:57:40,372 INFO org.apache.hadoop.ipc.Server: IPC Server
> >>>>>> handler 8 on 60010: starting
> >>>>>> 2007-10-18 19:57:40,373 INFO org.apache.hadoop.hbase.HRegionServer:
> >>>>>> HRegionServer started at: 127.0.1.1:60010
> >>>>>> 2007-10-18 19:57:40,384 INFO org.apache.hadoop.ipc.Server: IPC Server
> >>>>>> handler 9 on 60010: starting
> >>>>>> 2007-10-18 19:57:41,118 INFO org.apache.hadoop.hbase.HStore: HStore
> >>>>>> online for --ROOT--,,0/info
> >>>>>> 2007-10-18 19:57:41,125 INFO org.apache.hadoop.hbase.HRegion: region
> >>>>>> --ROOT--,,0 available
> >>>>>>
> >>>>>> 2. hbase-hadoop-master-yangbin.log
> >>>>>>
> >>>>>> There is a lot of the below statement
> >>>>>>
> >>>>>> 2007-10-18 15:52:52,885 INFO org.apache.hadoop.ipc.Client: Retrying
> >>>>>> connect to server: /127.0.1.1:60010. Already tried 1 time(s).
> >>>>>> 2007-10-18 15:52:53,892 INFO org.apache.hadoop.ipc.Client: Retrying
> >>>>>> connect to server: /127.0.1.1:60010. Already tried 2 time(s).
> >>>>>> 2007-10-18 15:52:54,900 INFO org.apache.hadoop.ipc.Client: Retrying
> >>>>>> connect to server: /127.0.1.1:60010. Already tried 3 time(s).
> >>>>>> 2007-10-18 15:52:55,904 INFO org.apache.hadoop.ipc.Client: Retrying
> >>>>>> connect to server: /127.0.1.1:60010. Already tried 4 time(s).
> >>>>>> 2007-10-18 15:52:56,912 INFO org.apache.hadoop.ipc.Client: Retrying
> >>>>>> connect to server: /127.0.1.1:60010. Already tried 5 time(s).
> >>>>>> 2007-10-18 15:52:57,924 INFO org.apache.hadoop.ipc.Client: Retrying
> >>>>>> connect to server: /127.0.1.1:60010. Already tried 6 time(s).
> >>>>>> 2007-10-18 15:52:58,928 INFO org.apache.hadoop.ipc.Client: Retrying
> >>>>>> connect to server: /127.0.1.1:60010. Already tried 7 time(s).
> >>>>>> 2007-10-18 15:52:59,932 INFO org.apache.hadoop.ipc.Client: Retrying
> >>>>>> connect to server: /127.0.1.1:60010. Already tried 8 time(s).
> >>>>>> 2007-10-18 15:53:00,936 INFO org.apache.hadoop.ipc.Client: Retrying
> >>>>>> connect to server: /127.0.1.1:60010. Already tried 9 time(s).
> >>>>>> 2007-10-18 15:53:01,939 INFO org.apache.hadoop.ipc.Client: Retrying
> >>>>>> connect to server: /127.0.1.1:60010. Already tried 10 time(s).
> >>>>>> 2007-10-18 15:53:02,943 INFO org.apache.hadoop.ipc.RPC: Server at
> >>>>>> /127.0.1.1:60010 not available yet, Zzzzz...
> >>>>>>
> >>>>>>
> >>>>>
> >>>>>
> >>>>
> >>>>
> >>>> --
> >>>> Bin YANG
> >>>> Department of Computer Science and Engineering
> >>>> Fudan University
> >>>> Shanghai, P. R. China
> >>>> EMail: [EMAIL PROTECTED]
> >>>
> >>> _________________________________________________________________
> >>> Windows Live Hotmail and Microsoft Office Outlook – together at last. Get
> >>> it now.
> >>> http://office.microsoft.com/en-us/outlook/HA102225181033.aspx?pid=CL100626971033
> >>
> >>
> >> --
> >> Bin YANG
> >> Department of Computer Science and Engineering
> >> Fudan University
> >> Shanghai, P. R. China
> >> EMail: [EMAIL PROTECTED]
> >>
> >
> >
> > --
> > Bin YANG
> > Department of Computer Science and Engineering
> > Fudan University
> > Shanghai, P. R. China
> > EMail: [EMAIL PROTECTED]
>
> _________________________________________________________________
> Windows Live Hotmail and Microsoft Office Outlook – together at last. Get it
> now.
> http://office.microsoft.com/en-us/outlook/HA102225181033.aspx?pid=CL100626971033
