Hi Jinyan, To quickly check if it has to do with resolving the ip address, can you check what is the hostname of the system? A quick hack would be to rename host itself as "localhost" if you are using cloudera's pseudo cluster hadoop for testing.
Thanks, -Idris On Wed, Feb 1, 2012 at 4:24 PM, Harsh J <[email protected]> wrote: > Jinyan, > > Am not sure what your problem here seems to be - the client hanging or > the job itself hanging. Could you provide us some more information on > what state the job is hung in, or expand on the job client hang? > Having a jstack also helps whenever you run into a JVM hang. > > On Wed, Feb 1, 2012 at 3:46 PM, Jinyan Xu <[email protected]> wrote: > > Hi all, > > > > Do terasort use 4 reduce 8 map , when all maps finish reduce no response. > > > > Debug messages like: > > > > 12/02/02 01:42:47 DEBUG ipc.Client: IPC Client (47) connection to > localhost/127.0.0.1:9001 from hadoop sending #7126 > > 12/02/02 01:42:47 DEBUG ipc.Client: IPC Client (47) connection to > localhost/127.0.0.1:9001 from hadoop got value #7126 > > 12/02/02 01:42:47 DEBUG ipc.RPC: Call: getJobStatus 1 > > 12/02/02 01:42:48 DEBUG ipc.Client: IPC Client (47) connection to > localhost/127.0.0.1:9001 from hadoop sending #7127 > > 12/02/02 01:42:48 DEBUG ipc.Client: IPC Client (47) connection to > localhost/127.0.0.1:9001 from hadoop got value #7127 > > 12/02/02 01:42:48 DEBUG ipc.RPC: Call: getTaskCompletionEvents 0 > > 12/02/02 01:42:48 DEBUG ipc.Client: IPC Client (47) connection to > localhost/127.0.0.1:9001 from hadoop sending #7128 > > 12/02/02 01:42:48 DEBUG ipc.Client: IPC Client (47) connection to > localhost/127.0.0.1:9001 from hadoop got value #7128 > > 12/02/02 01:42:48 DEBUG ipc.RPC: Call: getJobStatus 1 > > 12/02/02 01:42:49 DEBUG ipc.Client: IPC Client (47) connection to > localhost/127.0.0.1:9001 from hadoop sending #7129 > > 12/02/02 01:42:49 DEBUG ipc.Client: IPC Client (47) connection to > localhost/127.0.0.1:9001 from hadoop got value #7129 > > 12/02/02 01:42:49 DEBUG ipc.RPC: Call: getTaskCompletionEvents 0 > > 12/02/02 01:42:49 DEBUG ipc.Client: IPC Client (47) connection to > localhost/127.0.0.1:9001 from hadoop sending #7130 > > 12/02/02 01:42:49 DEBUG ipc.Client: IPC Client (47) connection to > localhost/127.0.0.1:9001 from hadoop got value #7130 > > 12/02/02 01:42:49 DEBUG ipc.RPC: Call: getJobStatus 1 > > 12/02/02 01:42:50 DEBUG ipc.Client: IPC Client (47) connection to > localhost/127.0.0.1:9001 from hadoop sending #7131 > > 12/02/02 01:42:50 DEBUG ipc.Client: IPC Client (47) connection to > localhost/127.0.0.1:9001 from hadoop got value #7131 > > 12/02/02 01:42:50 DEBUG ipc.RPC: Call: getTaskCompletionEvents 1 > > 12/02/02 01:42:50 DEBUG ipc.Client: IPC Client (47) connection to > localhost/127.0.0.1:9001 from hadoop sending #7132 > > 12/02/02 01:42:50 DEBUG ipc.Client: IPC Client (47) connection to > localhost/127.0.0.1:9001 from hadoop got value #7132 > > 12/02/02 01:42:50 DEBUG ipc.RPC: Call: getJobStatus 0 > > 12/02/02 01:42:51 DEBUG ipc.Client: IPC Client (47) connection to > localhost/127.0.0.1:9001 from hadoop sending #7133 > > 12/02/02 01:42:51 DEBUG ipc.Client: IPC Client (47) connection to > localhost/127.0.0.1:9001 from hadoop got value #7133 > > > > > > ________________________________ > > The information and any attached documents contained in this message > > may be confidential and/or legally privileged. The message is > > intended solely for the addressee(s). If you are not the intended > > recipient, you are hereby notified that any use, dissemination, or > > reproduction is strictly prohibited and may be unlawful. If you are > > not the intended recipient, please contact the sender immediately by > > return e-mail and destroy all copies of the original message. > > > > -- > Harsh J > Customer Ops. Engineer > Cloudera | http://tiny.cloudera.com/about >
