hbase-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Dima Spivak <dspi...@cloudera.com>
Subject Re: How to configure HBase in a HA mode?
Date Thu, 04 Aug 2016 20:04:55 GMT
Hey Alexandr,

In that case, you'd use what you have set in your hdfs-site.xml for
the dfs.nameservices property (followed by the HBase directory under HDFS).

-Dima

On Thu, Aug 4, 2016 at 12:54 PM, Alexandr Porunov <
alexandr.porunov@gmail.com> wrote:

> Hello,
>
> I don't understand one parameter from hbase-site.xml :
>
> <property>
>   <name>hbase.rootdir</name>
>   <value>hdfs://hdfsHost:8020/hbase</value>
> </property>
>
> What we have to put in that parameter if we configured HDFS cluster in HA
> mode? I mean we have 2 name nodes (nn1, nn2) and 2 data nodes (dn1, dn2)
> then which node we have to use in "hbase.rootdir" parameter?
>
> The most logical answer is the name node which is currently active. But if
> we will use active name node and it fails then hbase cluster becomes
> unavailable even if our nn2 will change its status to active. Hbase cluster
> will not understand that we have changed our active NN.
>
> Moreover, I have configured HBase cluster with the following parameter:
>
> <property>
>   <name>hbase.rootdir</name>
>   <value>hdfs://nn1:8020/hbase</value>
> </property>
>
> It doesn't work.
> 1. HMaster starts
> 2. I put "http://nn1:16010" into browser
> 3. HMaster disappears
>
> Here is my logs/hbase-hadoop-master-nn1.log :
> http://paste.openstack.org/show/549232/
>
> Please, help me to find out how to configure it
>
> Sincerely,
>
> Alexandr
>



-- 
-Dima

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message