Hi All,

In pseudo distributed node HBaseMaster is stopping automatically when we
starts HbaseRegion.

I have changed all the configuration files of Hadoop,Hbase & Zookeeper to
set the exact hostname of the machine. Also commented the localhost entry
from /etc/hosts & cleared the cache as well. There is no entry of
localhost.localdomain entry in these configurations, but this it is
resolving to localhost.localdomain.

Please find the error:
2012-06-07 12:13:11,995 INFO
org.apache.hadoop.hbase.master.MasterFileSystem: No logs to split
*2012-06-07 12:13:12,103 ERROR org.apache.hadoop.hbase.HServerAddress:
Could not resolve the DNS name of localhost.localdomain
2012-06-07 12:13:12,104 FATAL org.apache.hadoop.hbase.master.HMaster:
Unhandled exception. Starting shutdown.*
*java.lang.IllegalArgumentException: hostname can't be null*
        at java.net.InetSocketAddress.<init>(InetSocketAddress.java:121)
        at
org.apache.hadoop.hbase.HServerAddress.getResolvedAddress(HServerAddress.java:108)
        at
org.apache.hadoop.hbase.HServerAddress.<init>(HServerAddress.java:64)
        at
org.apache.hadoop.hbase.zookeeper.RootRegionTracker.dataToHServerAddress(RootRegionTracker.java:82)
        at
org.apache.hadoop.hbase.zookeeper.RootRegionTracker.waitRootRegionLocation(RootRegionTracker.java:73)
        at
org.apache.hadoop.hbase.catalog.CatalogTracker.waitForRoot(CatalogTracker.java:222)
        at
org.apache.hadoop.hbase.catalog.CatalogTracker.waitForRootServerConnection(CatalogTracker.java:240)
        at
org.apache.hadoop.hbase.catalog.CatalogTracker.verifyRootRegionLocation(CatalogTracker.java:487)
        at
org.apache.hadoop.hbase.master.HMaster.assignRootAndMeta(HMaster.java:455)
        at
org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:406)
        at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:293)
2012-06-07 12:13:12,106 INFO org.apache.hadoop.hbase.master.HMaster:
Aborting
2012-06-07 12:13:12,106 DEBUG org.apache.hadoop.hbase.master.HMaster:
Stopping service threads

Thanks,
Manu S

Have you restarted zookeeper? Also clearing zookeeper data dir and data log dir might also help.. it seems that localhost.localdomain is being cached somewhere

------------------------------
On Thu 7 Jun, 2012 2:48 PM IST Manu S wrote:

>Hi All,
>
>In pseudo distributed node HBaseMaster is stopping automatically when we
>starts HbaseRegion.
>
>I have changed all the configuration files of Hadoop,Hbase & Zookeeper to
>set the exact hostname of the machine. Also commented the localhost entry
>from /etc/hosts & cleared the cache as well. There is no entry of
>localhost.localdomain entry in these configurations, but this it is
>resolving to localhost.localdomain.
>
>Please find the error:
>2012-06-07 12:13:11,995 INFO
>org.apache.hadoop.hbase.master.MasterFileSystem: No logs to split
>*2012-06-07 12:13:12,103 ERROR org.apache.hadoop.hbase.HServerAddress:
>Could not resolve the DNS name of localhost.localdomain
>2012-06-07 12:13:12,104 FATAL org.apache.hadoop.hbase.master.HMaster:
>Unhandled exception. Starting shutdown.*
>*java.lang.IllegalArgumentException: hostname can't be null*
>        at java.net.InetSocketAddress.<init>(InetSocketAddress.java:121)
>        at
>org.apache.hadoop.hbase.HServerAddress.getResolvedAddress(HServerAddress.java:108)
>        at
>org.apache.hadoop.hbase.HServerAddress.<init>(HServerAddress.java:64)
>        at
>org.apache.hadoop.hbase.zookeeper.RootRegionTracker.dataToHServerAddress(RootRegionTracker.java:82)
>        at
>org.apache.hadoop.hbase.zookeeper.RootRegionTracker.waitRootRegionLocation(RootRegionTracker.java:73)
>        at
>org.apache.hadoop.hbase.catalog.CatalogTracker.waitForRoot(CatalogTracker.java:222)
>        at
>org.apache.hadoop.hbase.catalog.CatalogTracker.waitForRootServerConnection(CatalogTracker.java:240)
>        at
>org.apache.hadoop.hbase.catalog.CatalogTracker.verifyRootRegionLocation(CatalogTracker.java:487)
>        at
>org.apache.hadoop.hbase.master.HMaster.assignRootAndMeta(HMaster.java:455)
>        at
>org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:406)
>        at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:293)
>2012-06-07 12:13:12,106 INFO org.apache.hadoop.hbase.master.HMaster:
>Aborting
>2012-06-07 12:13:12,106 DEBUG org.apache.hadoop.hbase.master.HMaster:
>Stopping service threads
>
>Thanks,
>Manu S

what is the hostname of your machine.... suppose if it is ubuntu
then i hosts file specify like this

<ipdaddress of pc>   ubuntu

then try...

On Thu, Jun 7, 2012 at 6:22 PM, Dhaval Shah <[EMAIL PROTECTED]>wrote:

>
> Have you restarted zookeeper? Also clearing zookeeper data dir and data
> log dir might also help.. it seems that localhost.localdomain is being
> cached somewhere
>
>
>
> ------------------------------
> On Thu 7 Jun, 2012 2:48 PM IST Manu S wrote:
>
> >Hi All,
> >
> >In pseudo distributed node HBaseMaster is stopping automatically when we
> >starts HbaseRegion.
> >
> >I have changed all the configuration files of Hadoop,Hbase & Zookeeper to
> >set the exact hostname of the machine. Also commented the localhost entry
> >from /etc/hosts & cleared the cache as well. There is no entry of
> >localhost.localdomain entry in these configurations, but this it is
> >resolving to localhost.localdomain.
> >
> >Please find the error:
> >2012-06-07 12:13:11,995 INFO
> >org.apache.hadoop.hbase.master.MasterFileSystem: No logs to split
> >*2012-06-07 12:13:12,103 ERROR org.apache.hadoop.hbase.HServerAddress:
> >Could not resolve the DNS name of localhost.localdomain
> >2012-06-07 12:13:12,104 FATAL org.apache.hadoop.hbase.master.HMaster:
> >Unhandled exception. Starting shutdown.*
> >*java.lang.IllegalArgumentException: hostname can't be null*
> >        at java.net.InetSocketAddress.<init>(InetSocketAddress.java:121)
> >        at
>
> >org.apache.hadoop.hbase.HServerAddress.getResolvedAddress(HServerAddress.java:108)
> >        at
> >org.apache.hadoop.hbase.HServerAddress.<init>(HServerAddress.java:64)
> >        at
>
> >org.apache.hadoop.hbase.zookeeper.RootRegionTracker.dataToHServerAddress(RootRegionTracker.java:82)
> >        at
>
> >org.apache.hadoop.hbase.zookeeper.RootRegionTracker.waitRootRegionLocation(RootRegionTracker.java:73)
> >        at
>
> >org.apache.hadoop.hbase.catalog.CatalogTracker.waitForRoot(CatalogTracker.java:222)
> >        at
>
> >org.apache.hadoop.hbase.catalog.CatalogTracker.waitForRootServerConnection(CatalogTracker.java:240)
> >        at
>
> >org.apache.hadoop.hbase.catalog.CatalogTracker.verifyRootRegionLocation(CatalogTracker.java:487)
> >        at
> >org.apache.hadoop.hbase.master.HMaster.assignRootAndMeta(HMaster.java:455)
> >        at
>
> >org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:406)
> >        at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:293)
> >2012-06-07 12:13:12,106 INFO org.apache.hadoop.hbase.master.HMaster:
> >Aborting
> >2012-06-07 12:13:12,106 DEBUG org.apache.hadoop.hbase.master.HMaster:
> >Stopping service threads
> >
> >Thanks,
> >Manu S
>
>
--
∞
Shashwat Shriparv