Go to the JT web UI, browse to the failed tasks. Identify which task threw the space related error. Ssh to that node and check the disk space on that node. Some partitions might have got 100% filled.
Sent from remote device, Please excuse typos
From: Manoj Babu <email@example.com>
Date: Fri, 7 Dec 2012 18:55:18 +0530
Subject: Re: Reg: No space left on device Exception
It a 62-bit linux system. Let me check that too!