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From Damien Carol <dca...@blitzbs.com>
Subject Hbase Web UI not running
Date Mon, 04 Nov 2013 10:11:10 GMT
Hi, HBase users.

I'm working with a 2 Nodes HDFS+HBASE cluster in full distributed mode 
for 2 months with success now (TABLE with more than 1.000.000.000 rows) .

Everything works fine, I used also PHOENIX code from Saleforces with 
success.

BUT. When I added a new node. HBase does not work for the third one.

2 Nodes :
HDFS 1.2.1
HBase 0.94.12
OS: Ubuntu Server 12.04.3

The new node is on Centos 6.4 (same version and conf files but different OS)

The HDFS part works fine (this node is already part of the HDFS cluster)
Ganglia monitoring works well with this centos node

The pb is very odd. When I start region server and zoo keeper on third 
node, I can see it :

/[hduser@nc-h04 ~]$ jps
13275 HRegionServer
13445 Jps
13383 HQuorumPeer
1499 DataNode/

I checked client ports (zoo keeper port  and 60010) and access is ok and 
daemon is running.

BUT there are no Web UI for third region server.

And one last odd thing: in Web UI of the master I see strange report.

The master see the region server but with wrong values for heap :

/nc-h04,60020,1383565134348    Mon Nov 04 12:38:54 CET 2013    
requestsPerSecond=0, numberOfOnlineRegions=0, usedHeapMB=0, maxHeapMB=0
/
I checked logs but the only error I see is that :
/
2013-11-04 13:03:54,510 DEBUG 
org.apache.hadoop.hbase.io.hfile.LruBlockCache: Stats: total=1.98 MB, 
free=239.7 MB, max=241.69 MB, blocks=0, accesses=0, hits=0, hitRatio=0, 
cachingAccesses=0, cachingHits=0, cachingHitsRatio=0, evictions=0, 
evicted=0, evictedPerRun=NaN
2013-11-04 13:04:10,789 INFO org.apache.hadoop.hbase.HBaseFileSystem: 
Create Writer, sleeping 1000 times 6
2013-11-04 13:04:16,790 INFO org.apache.hadoop.hbase.util.FSUtils: 
FileSystem doesn't support getDefaultReplication
2013-11-04 13:04:16,790 INFO org.apache.hadoop.hbase.util.FSUtils: 
FileSystem doesn't support getDefaultBlockSize/

Anybody had same problem with Centos ? Any advice ? Why the daemon is 
running but there are no Web UI ????

I'm running out of solution. Must back to Ubuntu Server? CDH works with 
Centos, doesn't it?

Regards,
-- 

Damien CAROL

  * tél : +33 (0)4 74 96 88 14
  * fax : +33 (0)4 74 96 31 88
  * email :dcarol@blitzbs.com <mailto:dcarol@blitzbs.com>

BLITZ BUSINESS SERVICE


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