Why would a lightly loaded nameserver w/ no other emissions on a
seemingly healthy machine have trouble allocating blocks in a job that
is almost done?
From the nameserver log:
060323 173126 Server handler 4 on 8009 call error: java.io.IOException:
Cannot obtain additional block for file
/user/stack/e04/outputs/segments/20060322213322/crawl_parse/part-00019
java.io.IOException: Cannot obtain additional block for file
/user/stack/e04/outputs/segments/20060322213322/crawl_parse/part-00019
at org.apache.hadoop.dfs.NameNode.addBlock(NameNode.java:160)
at sun.reflect.GeneratedMethodAccessor14.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:237)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:216)
It looks like we try 5 times at 100ms interval and still come back empty
handed. Its recurrence is threatening my jobs' completion.
Any feedback appreciated.
Thanks,
St.Ack
