ERROR: Worker crashed in map:0

[小黑米]

Hi,
my master hosts:
127.0.0.1 localhost #master
211.154.xxx.xxy nx00 #master
211.154.xxx.xxx nx01 #slave node

when i run the wordcount.py i got this error log:
========================================
ERROR: Worker crashed in map:0 @ nx01:
{undef,
[{disco_worker,remote_worker,
[[<0.62.0>,
"wordcount@1256221908",
<0.41.0>, "http://
111.111.111.111:8989/_disco_4444/a6/
wordcount@1256221908/",
<0.40.0>,<0.60.0>,
0,"map",
"nx01", <<"'http://
discoproject.org/chekhov.txt' ">>]]}]}
========================================


and i found something on the master-*.log
=========================================
=ERROR REPORT==== 22-Oct-2009::18:32:27 ===
Error in process <0.40.0> on node 'disco_4444_slave@nx01' with exit
value: {undef,[{disco_worker,remote_worker,
[[<1769.98.0>,"wordcount@1256221946",<1769.41.0>,"http://
111.111.111.111:8989/_disco_4444/0e/
wordcount@1256221946/",<1769.40.0>,<1769.96.0>,0,"map","nx01",<<38
bytes>>]]}]}
=========================================

then i ssh login to slave node and check if the "slave_waiter" work,
===================================================
[root@nx01 bin]# ps -aux|grep disco
Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/
procps-3.2.7/FAQ
root 1949 0.3 0.1 264172 9096 ? Sl 22:25 0:00 /usr/
local/lib/erlang/erts-5.7.3/bin/beam.smp -K true -- -root /usr/local/
lib/erlang -progname erl -- -home /root -noshell -noinput -noshell -
noinput -master disco_4444_master@nx00 -sname disco_4444_slave@nx01 -s
slave slave_start disco_4444_master@nx00 slave_waiter_0 -pa /root/
sofeware/disco-0.2.3/master/ebin
===================================================

it means slave work?And how can i make it work?

Thank you!


edward