I am sending this mail on hackers list because the bug list seems to be
dissapeared !
Something strange start happening on my PostgreSQL server :
Linux RedHat 5.2 i386 Pentium machine 64 Mb RAM
PostgreSQL 6.4.2 official release
there are a number of maximum 6 users working simultaneously but not so
hard on the database that isn't so big (2 Mb dumped).
the clients are Tcl/Tk programs. 3 clients are accesing server from a
local network, 3 or 4 clients are accesing server through a serial 115
kb line through a CISCO.
Till now, everything went ok, but sometimes, in the last few days, I
found some postgres (<zombie>) processes and when every client is
logging out, another postgres <zombie> process appears. I had to kill
-SIGTERM the master, wait for 5 or 6 seconds and then restart it again.
When 1 postgres <zombie> process is appearing, the current working
clients can work ahead, no problem at all. But newer connections aren't
accepted.
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I am not sure, but I think that the serial line is broked sometimes and
the client-server communication has small interrupts.
Could it be possible that these problems hang up postgresql so bad ?
Constantin Teodorescu
FLEX Consulting Braila, ROMANIA
