Hi, I got the same problem again today. So, I restarted the master process and got the following log:
2010-03-08 20:45:16,572 INFO org.apache.hadoop.hbase.client.HConnectionManager$TableServers: getMaster attempt 8 of 10 failed; retrying after sleep of 16000 java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574) at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206) at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:404) at org.apache.hadoop.hbase.ipc.HBaseClient$Connection.setupIOstreams(HBaseClient.java:308) at org.apache.hadoop.hbase.ipc.HBaseClient.getConnection(HBaseClient.java:831) at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:712) at org.apache.hadoop.hbase.ipc.HBaseRPC$Invoker.invoke(HBaseRPC.java:333) at $Proxy0.getProtocolVersion(Unknown Source) at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:489) at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:465) at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:512) at org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getMaster(HConnectionManager.java:341) at org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:72) at org.apache.hadoop.hbase.master.HMaster.doMain(HMaster.java:1258) at org.apache.hadoop.hbase.master.HMaster.main(HMaster.java:1282) 2010-03-08 20:45:32,574 DEBUG org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper: Read ZNode /hbase/master got 127.0.1.1:60000 2010-03-08 20:45:32,575 INFO org.apache.hadoop.hbase.client.HConnectionManager$TableServers: getMaster attempt 9 of 10 failed; no more retrying. java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574) at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206) at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:404) at org.apache.hadoop.hbase.ipc.HBaseClient$Connection.setupIOstreams(HBaseClient.java:308) at org.apache.hadoop.hbase.ipc.HBaseClient.getConnection(HBaseClient.java:831) at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:712) at org.apache.hadoop.hbase.ipc.HBaseRPC$Invoker.invoke(HBaseRPC.java:333) at $Proxy0.getProtocolVersion(Unknown Source) at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:489) at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:465) at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:512) at org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getMaster(HConnectionManager.java:341) at org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:72) at org.apache.hadoop.hbase.master.HMaster.doMain(HMaster.java:1258) at org.apache.hadoop.hbase.master.HMaster.main(HMaster.java:1282) 2010-03-08 20:45:32,576 ERROR org.apache.hadoop.hbase.master.HMaster: master is not running If the whole log would help, please let me know. Many thanks. William On Mon, Mar 8, 2010 at 12:36 AM, Jean-Daniel Cryans <jdcry...@apache.org>wrote: > We see stuff like that when people try to put their laptop to sleep or > some other times people don't change the default data directory (which > is /tmp) and it gets somehow cleared by the OS. > > Anyways, even if the NN was formated, the logs are kept in your hbase > root's logs directory so unless you deleted that too it's supposed to > be there. > > J-D > > On Sun, Mar 7, 2010 at 9:31 PM, William Kang <weliam.cl...@gmail.com> > wrote: > > Hi J-D, > > Thanks for reply so fast. Well, it is too late. I have format the > namenode. > > I will dump it next time. I assumed this should happen before. > > > > > > William > > > > On Mon, Mar 8, 2010 at 12:24 AM, Jean-Daniel Cryans <jdcry...@apache.org > >wrote: > > > >> And if you take a look at it's log, do you see Exceptions starting to > >> pop up at some point? > >> > >> J-D > >> > >> On Sun, Mar 7, 2010 at 9:12 PM, William Kang <weliam.cl...@gmail.com> > >> wrote: > >> > Hi, > >> > I am running HBase 0.20.3 in a Pseudo-distributed mode. It was running > >> fine. > >> > But after about 10 hours' inactivities, I started to have trouble to > >> connect > >> > the HBase master. I cannot even shut it down. The HDFS is running > fine. > >> Any > >> > idea what caused this? Many thanks. > >> > > >> > > >> > William > >> > > >> > > >
