Обсуждение: Postmaster crashes
Hi-
My php website interacts with a postrgres database, and every now and then,
postgres just seems to crash. A simple restart of postmaster fixes the
problem, until it crashes again. However, I have no idea EXACTLY when it
crashes (what the website users are doing at the time, if anything) and WHY.
If someone has any ideas as to why it might be crashing, or how I can find
out why, and what to do about it, I would appreciate the help.
Thanks,
Mike
mike@fieldco.com
Just to let Mike know that he is not alone, I have the exact same
problem. It is sooo annonying that postmaster will just crash about once a
week at various times. My question is how can the pg_log file be
viewed? I have a good idea at what time the postmaster crashed, but do
not know what postmaster was doing at the time.
Environment:
RH Linux 6.2 kernel 2.2.14-5.0smp
Daul PIII 450
Postgres 7.0
Thanks,
Daryl
On Thu, 6 Jul 2000, Mike Field wrote:
~|
~| Hi-
~|
~|My php website interacts with a postrgres database, and every now and then,
~|postgres just seems to crash. A simple restart of postmaster fixes the
~|problem, until it crashes again. However, I have no idea EXACTLY when it
~|crashes (what the website users are doing at the time, if anything) and WHY.
~|If someone has any ideas as to why it might be crashing, or how I can find
~|out why, and what to do about it, I would appreciate the help.
~|
~|Thanks,
~|
~|Mike
~|mike@fieldco.com
~|
I've had quite the same thing on a busy server, it was due to a lack of filehandles. Mike Field wrote: > > Hi- > > My php website interacts with a postrgres database, and every now and then, > postgres just seems to crash. A simple restart of postmaster fixes the > problem, until it crashes again. However, I have no idea EXACTLY when it > crashes (what the website users are doing at the time, if anything) and WHY. > If someone has any ideas as to why it might be crashing, or how I can find > out why, and what to do about it, I would appreciate the help. > > Thanks, > > Mike > mike@fieldco.com -- Mathieu Arnold
Thanks for the tips. A few questions: how does the lack of filehandles relate to the postmaster crashing? Filehandles to what files? How did you figure it out? (ie. did you look at logs? If so, which and how?) Thanks in advance for the help. Mike mike@fieldco.com ----- Original Message ----- From: Mathieu Arnold <arn_mat@club-internet.fr> To: Mike Field <mike@fieldco.com> Cc: <pgsql-admin@postgresql.org> Sent: Thursday, July 06, 2000 9:49 AM Subject: Re: [ADMIN] Postmaster crashes > I've had quite the same thing on a busy server, it was due to a lack of > filehandles. > > Mike Field wrote: > > > > Hi- > > > > My php website interacts with a postrgres database, and every now and then, > > postgres just seems to crash. A simple restart of postmaster fixes the > > problem, until it crashes again. However, I have no idea EXACTLY when it > > crashes (what the website users are doing at the time, if anything) and WHY. > > If someone has any ideas as to why it might be crashing, or how I can find > > out why, and what to do about it, I would appreciate the help. > > > > Thanks, > > > > Mike > > mike@fieldco.com > > -- > Mathieu Arnold > >
Here, we have a similar problem. When there are about 34 psql processes running and one more gets added, all turn to zombies. The only way to get Postgres running again is to restart it. Postgres version 6.4 Linux version 2.0.36 J.D. On Thu, 6 Jul 2000, Mike Field wrote: > > Hi- > > My php website interacts with a postrgres database, and every now and then, > postgres just seems to crash. A simple restart of postmaster fixes the > problem, until it crashes again. However, I have no idea EXACTLY when it > crashes (what the website users are doing at the time, if anything) and WHY. > If someone has any ideas as to why it might be crashing, or how I can find > out why, and what to do about it, I would appreciate the help. > > Thanks, > > Mike > mike@fieldco.com >
i figured out in launching strace postmaster :) and seeing some open failing, causing the master postmaster to crash and with it all it's sons. It was with a PG 6.5.3, and I haven't seen it happen again since a added an echo 16384 > /proc/sys/fs/file-max in my rc.local. Mike Field wrote: > > Thanks for the tips. A few questions: how does the lack of filehandles > relate to the postmaster crashing? Filehandles to what files? How did you > figure it out? (ie. did you look at logs? If so, which and how?) > > Thanks in advance for the help. > > Mike > mike@fieldco.com > > ----- Original Message ----- > From: Mathieu Arnold <arn_mat@club-internet.fr> > To: Mike Field <mike@fieldco.com> > Cc: <pgsql-admin@postgresql.org> > Sent: Thursday, July 06, 2000 9:49 AM > Subject: Re: [ADMIN] Postmaster crashes > > > I've had quite the same thing on a busy server, it was due to a lack of > > filehandles. > > > > Mike Field wrote: > > > > > > Hi- > > > > > > My php website interacts with a postrgres database, and every now and > then, > > > postgres just seems to crash. A simple restart of postmaster fixes the > > > problem, until it crashes again. However, I have no idea EXACTLY when > it > > > crashes (what the website users are doing at the time, if anything) and > WHY. > > > If someone has any ideas as to why it might be crashing, or how I can > find > > > out why, and what to do about it, I would appreciate the help. > > > > > > Thanks, > > > > > > Mike > > > mike@fieldco.com > > > > -- > > Mathieu Arnold > > > > -- Mathieu Arnold