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From Cristian Ivascu <civa...@adobe.com>
Subject FW: HBASE-766 still seems to reproduce on hbase 0.2.0
Date Mon, 25 Aug 2008 06:28:24 GMT
Re-posing this to a more appropriate list - this is something that's more likely to appear
when using hbase.

Hi all,

I have been trying to play with Hbase in the last few days and hit a snag - when trying to
fill up an Hbase table, via  25 thrift-generated clients (the injectors) -  after a few hours
it crashed. After reading through the logs and in the issue tracker, it sounds just like Hbase-766.

Errors: in the log file I get a bunch of NotServingRegionExceptions:

error: org.apache.hadoop.hbase.NotServingRegionException: Region test_user,81B09FA2-9A9F-42CD-9D15-D1FE608D39D4,1219115748711
closed.

Also, in the Hbase-hadoop-master log file, I get File does not exists exceptions, like the
one below (but with different row keys).
2008-08-20 02:13:24,135 INFO org.apache.hadoop.hbase.master.ServerManager: Received MSG_REPORT_CLOSE:
test_user,C8441FEF-2809-4B1B-881A-6CDC5F21BECA,1219127080127: java.io.FileNotFoundException:
File does not exist: hdfs://192.168.1.101:54310/hbase/test_user/203999734/subscribed_feed/mapfiles/5434845147549741098/data
    at org.apache.hadoop.dfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:369)
    at org.apache.hadoop.hbase.regionserver.HStoreFile.length(HStoreFile.java:444)
    at org.apache.hadoop.hbase.regionserver.HStore.loadHStoreFiles(HStore.java:436)
    at org.apache.hadoop.hbase.regionserver.HStore.<init>(HStore.java:218)
    at org.apache.hadoop.hbase.regionserver.HRegion.instantiateHStore(HRegion.java:1653)
    at org.apache.hadoop.hbase.regionserver.HRegion.<init>(HRegion.java:470)
    at org.apache.hadoop.hbase.regionserver.HRegionServer.instantiateRegion(HRegionServer.java:902)
    at org.apache.hadoop.hbase.regionserver.HRegionServer.openRegion(HRegionServer.java:877)
    at org.apache.hadoop.hbase.regionserver.HRegionServer$Worker.run(HRegionServer.java:817)
    at java.lang.Thread.run(Thread.java:619)
 from 192.168.1.103:60020

After a few of these the entire cluster (of 5 machines) went down.
I'm using Hbase 0.2.0 and Hadoop 0.1.7.1.

Any ideas?

Thanks,
Cristian Ivascu
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