Then you should have an error in the master logs. If not, it worths checking that the master & the region servers speak to the same ZK...
As it's hbase related, I redirect the question to hbase user mailing list (hadoop common is in bcc). On Wed, Mar 28, 2012 at 8:03 PM, Nabib El-Rahman < nabib.elrah...@tubemogul.com> wrote: > The master is up. is it possible that zookeeper might not know about it? > > > *Nabib El-Rahman *| Senior Sofware Engineer > > *M:* 734.846.25 <734.846.2529> > www.tubemogul.com | *twitter: @nabiber* > > <http://www.tubemogul.com/> > <http://www.tubemogul.com/> > > On Mar 28, 2012, at 10:42 AM, N Keywal wrote: > > It must be waiting for the master. Have you launched the master? > > On Wed, Mar 28, 2012 at 7:40 PM, Nabib El-Rahman < > nabib.elrah...@tubemogul.com> wrote: > >> Hi Guys, >> >> I'm starting up an region server and it stalls on initialization. I took >> a thread dump and found it hanging on this spot: >> >> "regionserver60020" prio=10 tid=0x00007fa90c5c4000 nid=0x4b50 in >> Object.wait() [0x00007fa9101b4000] >> >> java.lang.Thread.State: TIMED_WAITING (on object monitor) >> >> at java.lang.Object.wait(Native Method) >> >> - waiting on <0x00000000bc63b2b8> (a >> org.apache.hadoop.hbase.MasterAddressTracker) >> >> >> at >> org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker.blockUntilAvailable(ZooKeeperNodeTracker.java:122) >> >> >> - locked <0x00000000bc63b2b8> (a >> org.apache.hadoop.hbase.MasterAddressTracker) >> >> >> at >> org.apache.hadoop.hbase.regionserver.HRegionServer.blockAndCheckIfStopped(HRegionServer.java:516) >> >> >> at >> org.apache.hadoop.hbase.regionserver.HRegionServer.initializeZooKeeper(HRegionServer.java:493) >> >> >> at >> org.apache.hadoop.hbase.regionserver.HRegionServer.initialize(HRegionServer.java:461) >> >> >> at >> org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:560) >> >> >> at java.lang.Thread.run(Thread.java:662) >> >> >> >> Any Idea on who or what its being blocked on? >> >> *Nabib El-Rahman *| Senior Sofware Engineer >> >> *M:* 734.846.2529 >> www.tubemogul.com | *twitter: @nabiber* >> >> <http://www.tubemogul.com/> >> <http://www.tubemogul.com/> >> >> > >
