pg_dump and pg_dumpall is hanging

["Karthikeyan Sundaram" <skarthi98(at)hotmail(dot)com>]

Hi,

   I am using 8.1.0 for my production.   The pg_dumpall was working fine on 
all these days.  Suddenly from yesterday, the pg_dumpall command fails.  
Fails means, it hangs (no dump) is taking place.

   What may be the problem?

Regards
skarthi

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