Error: "could not read from statistics collector pipe"
Hello!
In my PostgreSQL logfile, I see that the following entries occur
very frequently:
2006-01-27 10:37:29 FATAL could not read from statistics collector
pipe: No error
2006-01-27 10:37:30 LOG statistics collector process (PID 5940)
was terminated by signal 1
(PostgreSQL 8.1.2, WinXP SP2, Athlon64 X2 3800, 2 GB RAM)
These errors occur every 1-2 minutes when the DB is active. What do
these messages mean and how can I stop them from appearing?
I also noticed that during inserting lots of records, the DB becomes
increasingly slower the more records were inserted. For example, the
first 100000 records take 15 minutes, but records 300000-400000 take
3 hours. Could this be related to the messages above?
I tried to execute ANALYZE every 100000 records, but this did not
seem to help.
Thanks in advance for your help!
- Stephan
2006-01-27 10:37:29 FATAL could not read from statistics collector
pipe: No error
2006-01-27 10:37:30 LOG statistics collector process (PID 5940)
was terminated by signal 1
try turning row level statistics off (or, during bulk inserts, turn
inserts off completely). I've seem this too but never nailed it down.
(PostgreSQL 8.1.2, WinXP SP2, Athlon64 X2 3800, 2 GB RAM)
These errors occur every 1-2 minutes when the DB is active. What do
these messages mean and how can I stop them from appearing?I also noticed that during inserting lots of records, the DB becomes
increasingly slower the more records were inserted. For example, the
first 100000 records take 15 minutes, but records 300000-400000 take
3 hours. Could this be related to the messages above?
try defering index/key generationg until after the insert. probably
what is happening is you are blowing out your sort memory and swapping
occurs. of course, you can always bump sort_mem
merlin
Sorry for the late reply, I didn't have much time during the last
days to catch up on this list.
Merlin Moncure wrote:
try turning row level statistics off (or, during bulk inserts, turn
inserts off completely). I've seem this too but never nailed it down.
Thanks, I'll give that a try!
- Stephan