Hi Lars,
I start them through HBase implicitly. I'll try printing the config
values and post.
thanks,
Hari
On Mon, Nov 22, 2010 at 1:58 PM, Lars George <[email protected]> wrote:
> Hi Hari,
>
> Are you starting them yourself or have HBase start them for you implicitly?
>
> Lars
>
> On Nov 22, 2010, at 6:19, Hari Sreekumar <[email protected]> wrote:
>
> > Hey Lars,
> >
> > I have HQuorumPeer running on all nodes that I specify in my
> > hbase-site file. One thing I wanted to clarify.. what is the default
> value
> > of HBASE_MANAGES_ZK ? Because I have not explicitly set it to true in my
> > hbase-env.sh file.
> >
> > thanks,
> > hari
> >
> > On Mon, Nov 22, 2010 at 10:39 AM, Lars George <[email protected]>
> wrote:
> >
> >> Hi Hari,
> >>
> >> On which of these for machines do you have a ZooKeeper daemon running as
> >> well?
> >>
> >> Lars
> >>
> >> On Mon, Nov 22, 2010 at 5:51 AM, Hari Sreekumar
> >> <[email protected]> wrote:
> >>> Hi,
> >>>
> >>> But it is reading settings from hbase-site.xml. If it was not reading
> >> my
> >>> changes, the problem wouldn't have gotten fixed when I add ejabber to
> the
> >>> quroum right? After all, it is responding to changes I make in my xml
> >> file.
> >>> What else can be the issue here?
> >>>
> >>> hari
> >>>
> >>> On Mon, Nov 22, 2010 at 12:54 AM, Lars George <[email protected]>
> >> wrote:
> >>>
> >>>> Hi Hari,
> >>>>
> >>>> You are missing the quorum setting. It seems the hbase-site.xml is
> >> missing
> >>>> from the classpath on the clients. Did you pack it into the jar?
> >>>>
> >>>> And yes, even one ZK server is fine in such a small cluster.
> >>>>
> >>>> You can see it is trying to connect to localhost which is the default
> if
> >>>> the site file is missing.
> >>>>
> >>>> Regards,
> >>>> Lars
> >>>>
> >>>> On Nov 21, 2010, at 19:22, Hari Sreekumar <[email protected]>
> >>>> wrote:
> >>>>
> >>>>> Hi,
> >>>>> Is it necessary that all RegionServers must also be part of the ZK
> >>>>> Quorum? I have a 4 node cluster, with node hadoop1 being master and
> >>>> hadoop2,
> >>>>> hadoop3 and ejabber being the slaves (Both in case of hadoop and for
> >>>> HBase).
> >>>>>
> >>>>> When I keep only 3 nodes in the zookeeper.quorum property:
> >>>>> <name>hbase.zookeeper.quorum</name>
> >>>>> <value>hadoop1,hadoop2,hadoop3</value>
> >>>>>
> >>>>> I get this exception for all tasks that run on ejabber(the 4th node):
> >>>>>
> >>>>> 2010-11-21 23:35:47,785 INFO org.apache.zookeeper.ClientCnxn:
> >> Attempting
> >>>>> connection to server localhost/127.0.0.1:2181
> >>>>> 2010-11-21 23:35:47,790 WARN org.apache.zookeeper.ClientCnxn:
> >> Exception
> >>>>> closing session 0x0 to sun.nio.ch.selectionkeyi...@7c2e1f1f
> >>>>> java.net.ConnectException: Connection refused
> >>>>> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> >>>>> at
> >>>>>
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
> >>>>> at
> >>>>> org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:933)
> >>>>> 2010-11-21 23:35:47,791 WARN org.apache.zookeeper.ClientCnxn:
> Ignoring
> >>>>> exception during shutdown input
> >>>>> java.nio.channels.ClosedChannelException
> >>>>> at
> >>>>>
> sun.nio.ch.SocketChannelImpl.shutdownInput(SocketChannelImpl.java:638)
> >>>>> at
> >> sun.nio.ch.SocketAdaptor.shutdownInput(SocketAdaptor.java:360)
> >>>>> at
> >>>>>
> >> org.apache.zookeeper.ClientCnxn$SendThread.cleanup(ClientCnxn.java:999)
> >>>>> at
> >>>>> org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:970)
> >>>>> 2010-11-21 23:35:47,791 WARN org.apache.zookeeper.ClientCnxn:
> Ignoring
> >>>>> exception during shutdown output
> >>>>> java.nio.channels.ClosedChannelException
> >>>>> at
> >>>>>
> >> sun.nio.ch.SocketChannelImpl.shutdownOutput(SocketChannelImpl.java:649)
> >>>>> at
> >> sun.nio.ch.SocketAdaptor.shutdownOutput(SocketAdaptor.java:368)
> >>>>> at
> >>>>>
> >> org.apache.zookeeper.ClientCnxn$SendThread.cleanup(ClientCnxn.java:1004)
> >>>>> at
> >>>>> org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:970)
> >>>>> 2010-11-21 23:35:47,925 WARN
> >>>>> org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper: Failed to create
> >>>> /hbase
> >>>>> -- check quorum servers, currently=localhost:2181
> >>>>> org.apache.zookeeper.KeeperException$ConnectionLossException:
> >>>>> KeeperErrorCode = ConnectionLoss for /hbase
> >>>>> at
> >>>>> org.apache.zookeeper.KeeperException.create(KeeperException.java:90)
> >>>>> at
> >>>>> org.apache.zookeeper.KeeperException.create(KeeperException.java:42)
> >>>>> at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:780)
> >>>>> at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:808)
> >>>>> at
> >>>>>
> >>>>
> >>
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.ensureExists(ZooKeeperWrapper.java:405)
> >>>>> at
> >>>>>
> >>>>
> >>
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.ensureParentExists(ZooKeeperWrapper.java:432)
> >>>>> at
> >>>>>
> >>>>
> >>
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.checkOutOfSafeMode(ZooKeeperWrapper.java:545)
> >>>>>
> >>>>> When I add ejabber also to the ZK quorum and restart HBase, I don't
> >> get
> >>>> this
> >>>>> exception. My understanding was that a small cluster like mine should
> >>>> only
> >>>>> need one ZK machine.
> >>>>>
> >>>>> Thanks,
> >>>>> Hari
> >>>>
> >>>
> >>
>
