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From Andrew Purtell <apurt...@apache.org>
Subject Re: Newb sees exception in logs after fresh install
Date Tue, 10 Feb 2015 15:59:01 GMT
> 2015-02-09 20:55:57,640 INFO [M:0;hp:38689] zookeeper.RecoverableZooKeeper:
Node /hbase/namespace/hbase already exists and this is not a retry
> [...]
>
​
Questions:Does the above KeeperException indicate a problem?
> How do I wipe my laptop clean of hbase and zookeeper?

No, that is not an error. It's some informational logging that arguably can
be useful for debugging problems but we should probably be emitting this at
DEBUG level. You can ignore it.

In general, messages you should be concerned about are logged at WARN,
ERROR, or FATAL log levels.



​​
On Mon, Feb 9, 2015 at 1:14 PM,
​​
D
​​
an Bikle <wepitch.us@gmail.com> wrote:

> *hello hbase ppl,today I am installing prediction.io
> <http://prediction.io>It uses hbase.I did this:cd Downloads/wget
>
> http://archive.apache.org/dist/hbase/hbase-0.98.6/hbase-0.98.6-hadoop2-bin.tar.gz
> <
> http://archive.apache.org/dist/hbase/hbase-0.98.6/hbase-0.98.6-hadoop2-bin.tar.gz
> >tar
> zxf hbase-0.98.6-hadoop2-bin.tar.gzmv hbase-0.98.6-hadoop2 /home/dan/cd
> /home/dan/ln -s hbase-0.98.6-hadoop2 hbasecd hbasevi
> hbase/conf/hbase-site.xml<configuration>  <property>
> <name>hbase.rootdir</name>    <value>file:///home/dan/hbase</value>
> </property>  <property>    <name>hbase.zookeeper.property.dataDir</name>
> <value>/home/dan/zookeeper</value>
> </property></configuration>bin/start-hbase.shI looked at logs:dan@hp
> ~/hbase $ dan@hp ~/hbase $ tail logs/hbase-dan-master-hp.log 2015-02-09
> 20:55:57,544 DEBUG [main-EventThread] hbase.ZKNamespaceManager: Updating
> namespace cache from node default with data: \x0A\x07default2015-02-09
> 20:55:57,588 DEBUG [main-EventThread] hbase.ZKNamespaceManager: Updating
> namespace cache from node default with data: \x0A\x07default2015-02-09
> 20:55:57,589 DEBUG [main-EventThread] hbase.ZKNamespaceManager: Updating
> namespace cache from node hbase with data: \x0A\x05hbase2015-02-09
> 20:55:57,606 INFO  [ProcessThread(sid:0 cport:-1):]
> server.PrepRequestProcessor: Got user-level KeeperException when processing
> sessionid:0x14b70205dde0000 type:create cxid:0x93 zxid:0x3b txntype:-1
> reqpath:n/a Error Path:/hbase/namespace/default Error:KeeperErrorCode =
> NodeExists for /hbase/namespace/default2015-02-09 20:55:57,618 INFO
>  [M:0;hp:38689] zookeeper.RecoverableZooKeeper: Node
> /hbase/namespace/default already exists and this is not a retry2015-02-09
> 20:55:57,632 INFO  [ProcessThread(sid:0 cport:-1):]
> server.PrepRequestProcessor: Got user-level KeeperException when processing
> sessionid:0x14b70205dde0000 type:create cxid:0x96 zxid:0x3d txntype:-1
> reqpath:n/a Error Path:/hbase/namespace/hbase Error:KeeperErrorCode =
> NodeExists for /hbase/namespace/hbase2015-02-09 20:55:57,640 INFO
>  [M:0;hp:38689] zookeeper.RecoverableZooKeeper: Node /hbase/namespace/hbase
> already exists and this is not a retry2015-02-09 20:55:57,652 INFO
>  [M:0;hp:38689] master.HMaster: Master has completed
> initialization2015-02-09 21:00:47,528 DEBUG [LruStats #0]
> hfile.LruBlockCache: Total=407.29 KB, free=386.30 MB, max=386.70 MB,
> blocks=405484352, accesses=0, hits=0, hitRatio=0, cachingAccesses=0,
> cachingHits=0, cachingHitsRatio=0,evictions=29, evicted=0,
> evictedPerRun=0.02015-02-09 21:00:56,808 DEBUG
> [hp,38689,1423515345937-BalancerChore] balancer.BaseLoadBalancer: Not
> running balancer because only 1 active regionserver(s)dan@hp ~/hbase $
> ​​
> Questions:Does the above KeeperException indicate a problem?How do I wipe
> my laptop clean of hbase and zookeeper?*
>



-- 
Best regards,

   - Andy

Problems worthy of attack prove their worth by hitting back. - Piet Hein
(via Tom White)

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