Hi Edson, It looks like for some reason your kernel does not have epoll enabled. It's very strange, since your kernel is very recent (in fact, bleeding edge!)
Can you check the contents of /proc/sys/fs/epoll/max_user_watches Are you involved with the Debian community? This sounds like a general Java bug. Can you also please verify that you're using the Sun JVM and not OpenJDK (the debian folks like OpenJDK but it has subtle issues with Hadoop) You'll have to add a non-free repository and install sun-java6-jdk -Todd On Mon, Mar 29, 2010 at 1:05 PM, Edson Ramiro <[email protected]> wrote: > I'm using > > Linux h02 2.6.32.9 #2 SMP Sat Mar 6 19:09:13 BRT 2010 x86_64 GNU/Linux > > ram...@h02:~/hadoop$ cat /etc/debian_version > squeeze/sid > > Thanks for reply > > Edson Ramiro > > > On 29 March 2010 16:56, Todd Lipcon <[email protected]> wrote: > > > Hi Edson, > > > > What operating system are you on? What kernel version? > > > > Thanks > > -Todd > > > > On Mon, Mar 29, 2010 at 12:01 PM, Edson Ramiro <[email protected]> > wrote: > > > > > Hi all, > > > > > > I'm trying to install Hadoop on a cluster, but I'm getting this error. > > > > > > I'm using java version "1.6.0_17" and hadoop-0.20.1+169.56.tar.gz from > > > Cloudera. > > > > > > Its running in a NFS home shared between the nodes and masters. > > > > > > The NameNode works well, but all nodes try to connect and fail. > > > > > > Any Idea ? > > > > > > Thanks in Advance. > > > > > > ==> logs/hadoop-ramiro-datanode-a05.log <== > > > 2010-03-29 15:56:00,168 INFO org.apache.hadoop.ipc.Client: Retrying > > connect > > > to server: lcpad/192.168.1.51:9000. Already tried 0 time(s). > > > 2010-03-29 15:56:01,172 INFO org.apache.hadoop.ipc.Client: Retrying > > connect > > > to server: lcpad/192.168.1.51:9000. Already tried 1 time(s). > > > 2010-03-29 15:56:02,176 INFO org.apache.hadoop.ipc.Client: Retrying > > connect > > > to server: lcpad/192.168.1.51:9000. Already tried 2 time(s). > > > 2010-03-29 15:56:03,180 INFO org.apache.hadoop.ipc.Client: Retrying > > connect > > > to server: lcpad/192.168.1.51:9000. Already tried 3 time(s). > > > 2010-03-29 15:56:04,184 INFO org.apache.hadoop.ipc.Client: Retrying > > connect > > > to server: lcpad/192.168.1.51:9000. Already tried 4 time(s). > > > 2010-03-29 15:56:05,188 INFO org.apache.hadoop.ipc.Client: Retrying > > connect > > > to server: lcpad/192.168.1.51:9000. Already tried 5 time(s). > > > 2010-03-29 15:56:06,192 INFO org.apache.hadoop.ipc.Client: Retrying > > connect > > > to server: lcpad/192.168.1.51:9000. Already tried 6 time(s). > > > 2010-03-29 15:56:07,196 INFO org.apache.hadoop.ipc.Client: Retrying > > connect > > > to server: lcpad/192.168.1.51:9000. Already tried 7 time(s). > > > 2010-03-29 15:56:08,200 INFO org.apache.hadoop.ipc.Client: Retrying > > connect > > > to server: lcpad/192.168.1.51:9000. Already tried 8 time(s). > > > 2010-03-29 15:56:09,204 INFO org.apache.hadoop.ipc.Client: Retrying > > connect > > > to server: lcpad/192.168.1.51:9000. Already tried 9 time(s). > > > 2010-03-29 15:56:09,204 ERROR > > > org.apache.hadoop.hdfs.server.datanode.DataNode: java.io.IOException: > > Call > > > to lcpad/192.168.1.51:9000 failed on local exception: > > java.io.IOException: > > > Function not implemented > > > at org.apache.hadoop.ipc.Client.wrapException(Client.java:775) > > > at org.apache.hadoop.ipc.Client.call(Client.java:743) > > > at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:220) > > > at $Proxy4.getProtocolVersion(Unknown Source) > > > at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:359) > > > at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:346) > > > at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:383) > > > at org.apache.hadoop.ipc.RPC.waitForProxy(RPC.java:314) > > > at org.apache.hadoop.ipc.RPC.waitForProxy(RPC.java:291) > > > at > > > > > > > > > org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:278) > > > at > > > > org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:225) > > > at > > > > > > > > > org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:1309) > > > at > > > > > > > > > org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:1264) > > > at > > > > > > > > > org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:1272) > > > at > > > > org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:1394) > > > Caused by: java.io.IOException: Function not implemented > > > at sun.nio.ch.EPollArrayWrapper.epollCreate(Native Method) > > > at > sun.nio.ch.EPollArrayWrapper.<init>(EPollArrayWrapper.java:68) > > > at > sun.nio.ch.EPollSelectorImpl.<init>(EPollSelectorImpl.java:52) > > > at > > > > > > > > > sun.nio.ch.EPollSelectorProvider.openSelector(EPollSelectorProvider.java:18) > > > at > > > > > > > > > org.apache.hadoop.net.SocketIOWithTimeout$SelectorPool.get(SocketIOWithTimeout.java:407) > > > at > > > > > > > > > org.apache.hadoop.net.SocketIOWithTimeout$SelectorPool.select(SocketIOWithTimeout.java:322) > > > at > > > > > > > > > org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:203) > > > at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:407) > > > at > > > org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:304) > > > at > > > org.apache.hadoop.ipc.Client$Connection.access$1700(Client.java:176) > > > at org.apache.hadoop.ipc.Client.getConnection(Client.java:860) > > > at org.apache.hadoop.ipc.Client.call(Client.java:720) > > > ... 13 more > > > > > > Edson Ramiro > > > > > > > > > > > -- > > Todd Lipcon > > Software Engineer, Cloudera > > > -- Todd Lipcon Software Engineer, Cloudera
