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From mail list <louis.hust...@gmail.com>
Subject Re: after QJM failover,hbase can not write
Date Fri, 28 Nov 2014 09:31:42 GMT
Hi,

please attach your log when the problem happened!!

On Nov 28, 2014, at 14:32, 聪聪 <175998806@qq.com> wrote:

> hi,there:
> I encount a problem,it let me upset.
> 
> I use version of hadoop is hadoop-2.3.0-cdh5.1.0,namenode HA use  the Quorum Journal
Manager (QJM) feature ,dfs.ha.fencing.methods option is following:
> <property>
>         <name>dfs.ha.fencing.methods</name>
>         <value>sshfence
>                shell(q_hadoop_fence.sh $target_host $target_port)
>         </value>
> </property>
> 
> or
> 
> <property>
>         <name>dfs.ha.fencing.methods</name>
>         <value>sshfence
>                shell(/bin/true)
>         </value>
> </property>
> 
> I use iptables to  simulate  machine of active namenode  crash。After  automatic failover
completed,hdfs  can the normal write,for example ./bin/hdfs dfs -put a.txt /tmp,but  hbase
 still  can not write.
> After a very long time,hbase can write,but I can not statistic How long did it take.
> I want to ask:
> 1、Why hdfs Complete failover,hbase can not write?
> 2、After hdfs Complete failover,how long hbase can write?
> Looking forward for your responses!


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