Обсуждение: hung postmaster?

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hung postmaster?

От
"Ed L."
Дата:
I'm seeing some unpleasant database cluster seizures.  After
running fine for hours, days, even weeks, all of a sudden new
connections via psql, DBI, libpq, all completely hang with no
log message or error, while existing connections can continue to
execute queries, log messages, etc.  Postmaster is totally
unresponsive to SIGTERM, SIGINT, and SIGQUIT  (sigkill is the
only thing that shuts it down).  Memory, CPU, and available
connections are plentiful.  Top, ps, glance, ls, netstat all are
very responsive.  I/O load has been pretty high, averaging
700-1100 physical IOs/second.  The first time this occurred,
last Friday, it was a mix of our 7.3.4 and 7.4.6 clusters.
Yesterday, it was all of the 7.4.6 64-bit clusters, none of the
32-bit 7.3.4 clusters.  Today it was two of the 7.4.6 clusters
and no others.

I'm trying to get gdb installed so I can attach to postmaster and
get a backtrace.  Other troubleshooting ideas appreciated.
Details below...

CONFIG:
========
Hardware:  One HP 64-bit Itanium rx4640, 16gb RAM, 4 cpus, SAN
(Cisco switches, HP EVA-5000 disk array and FC HBA's).
OS:  HP-UX B.11.23
Pgsql:  9 clusters installed and concurrently running.  4/9 are
32-bit PostgreSQL 7.3.4 on ia64-hp-hpux11.22, compiled by cc
-Ae.  The other 5 clusters are 64-bit PostgreSQL 7.4.6 on
ia64-hp-hpux11.23, compiled by gcc 3.3.2.

(We have 2 other identical boxes running without incident with
similar cluster mixes of 7.3.4, 7.3.7, 7.4.6.)


Re: hung postmaster?

От
Tom Lane
Дата:
"Ed L." <pgsql@bluepolka.net> writes:
> Postmaster is totally
> unresponsive to SIGTERM, SIGINT, and SIGQUIT  (sigkill is the
> only thing that shuts it down).

gdb backtrace definitely sounds like a good idea.  Also it might be
interesting to see the results of strace of the postmaster while hitting
it with signals.  Find out if it's doing anything at all in response ...

            regards, tom lane

Re: hung postmaster?

От
"Ed L."
Дата:
On Wednesday February 16 2005 8:54, Tom Lane wrote:
> "Ed L." <pgsql@bluepolka.net> writes:
> > Postmaster is totally
> > unresponsive to SIGTERM, SIGINT, and SIGQUIT  (sigkill is
> > the only thing that shuts it down).
>
> gdb backtrace definitely sounds like a good idea.  Also it
> might be interesting to see the results of strace of the
> postmaster while hitting it with signals.  Find out if it's
> doing anything at all in response ...

Workin' on gdb/strace build, but having trouble with both.  Gdb
just doesn't build from source, not sure why yet, and no depots
found at porting center.  It doesn't appear that strace is
supported for 11.23 itanium based on strace README/PORTING files
and 'man 2 ptrace'.  HPUX users, is that your experience?

Question:  Am I doing all I can to avoid corruption with the
following procedure to shutdown a 7.4.6 cluster with a hung
postmaster?  Suggestions?

1.  SIGTERM non-postmaster processes
2.  SIGINT non-postmasters
3.  SIGQUIT non-postmaster
4.  SIGTERM postmaster
5.  SIGINT postmaster
6.  SIGQUIT postmaster
7.  SIGKILL postmaster

TIA.

Ed


Re: hung postmaster?

От
Martijn van Oosterhout
Дата:
On Wed, Feb 16, 2005 at 11:41:35AM -0700, Ed L. wrote:
> Question:  Am I doing all I can to avoid corruption with the
> following procedure to shutdown a 7.4.6 cluster with a hung
> postmaster?  Suggestions?

What is the state of the processes in ps? D, S, R, ?? That should at
least give a hint as to what it *is* doing...

> 1.  SIGTERM non-postmaster processes
> 2.  SIGINT non-postmasters
> 3.  SIGQUIT non-postmaster
> 4.  SIGTERM postmaster
> 5.  SIGINT postmaster
> 6.  SIGQUIT postmaster
> 7.  SIGKILL postmaster

The options you can give to pg_ctl should cover all the
possibilities... There's also a page in the docs as to what each
process does with each signal...

Hope this helps,
--
Martijn van Oosterhout   <kleptog@svana.org>   http://svana.org/kleptog/
> Patent. n. Genius is 5% inspiration and 95% perspiration. A patent is a
> tool for doing 5% of the work and then sitting around waiting for someone
> else to do the other 95% so you can sue them.

Вложения

Re: hung postmaster?

От
"Ed L."
Дата:
On Wednesday February 16 2005 3:38, Martijn van Oosterhout wrote:
> On Wed, Feb 16, 2005 at 11:41:35AM -0700, Ed L. wrote:
> > Question:  Am I doing all I can to avoid corruption with the
> > following procedure to shutdown a 7.4.6 cluster with a hung
> > postmaster?  Suggestions?
>
> What is the state of the processes in ps? D, S, R, ?? That
> should at least give a hint as to what it *is* doing...

The postmasters were sleeping.  I was able to trace a local hung
psql client through lsof-->netstat to see the connection was in
tcp "ESTABLISHED" state.

Anyway, before we installed gdb (wdb) from hp dvd to get a
backtrace, I'd already guessed it could be a problem with the
build since the 7.4.6 build that was hanging was built with gcc
3.2.2, while the 7.4.6 builds on two other identical boxes were
built with gcc 3.4.2.  So we shutdown all the 7.4.6 clusters,
rebuilt using gcc 3.4.2, identical build steps AFAICS, and this
nasty problem has apparently gone away (knock on wood).

I have saved a copy of the problematic gcc-3.2.2-built 7.4.6
installation executables, libraries, etc. in case anyone is
interested.  Time permitting, I may fire them up with a new
cluster and see if I can recreate the problem to get a
backtrace.

Thanks.

Ed


Re: hung postmaster?

От
"Ed L."
Дата:
On Friday February 18 2005 11:01, Ed L. wrote:
> it could be a problem with the
> build since the 7.4.6 build that was hanging was built with
> gcc 3.2.2, while the 7.4.6 builds on two other identical boxes
> were built with gcc 3.4.2.  So we shutdown all the 7.4.6
> clusters, rebuilt using gcc 3.4.2, identical build steps
> AFAICS, and this nasty problem has apparently gone away (knock
> on wood).

Correction:  problem was with gcc 3.3.2 build, not gcc 3.2.2.


Re: hung postmaster?

От
"Ed L."
Дата:
OK, it appears I can reproduce this bug in fairly short
order.  Below are gdb backtraces along with current
snapshots from ps, netstat, and a snippet of the server
log.  This is no longer an urgent issue for me with the
gcc 3.4.2 workaround available, but I do have a stalled
test cluster postmaster right now, so I can leave it up
for a while if anyone cares for more information.

The identical source built in the identical fashion and
running on the same hardware, but using gcc 3.4.2
instead of gcc 3.3.2, continues to work fine and does
not exhibit this problem so far.  Again, this is 64-bit
PostgreSQL 7.4.6 on HP-UX B.11.23 on ia64 box.

Details of current hang...

PIDS 29080 and 26752 in the listing below are hung,
apparently because the postmaster is hung (PID 28775).
PID 26752 is a remote psql client that wanted to just
connect, select version(), and disconnect.  I had
that going in a loop, and this PID was the first to
hang; PID 29080 is a local psql client.

$ps -u pg -lf
F S      UID   PID  PPID  C PRI NI             ADDR   SZ            WCHAN    STIME TTY       TIME COMD
1401 S       pg 28777 28775  0 154 20 e000000170fcf4c0 1162 e000000164f7e0c0 13:41:07 pts/3     0:00 postgres: stats
bufferprocess 
1401 S       pg 28775     1  0 154 20 e00000016a5b5940 1118 e0000001744340e8 13:41:07 pts/3     0:00
/opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/bin/postm
1401 S       pg 26752 28629  0 154 20 e000000191e03280  101 e000000164f7e100 18:09:01 pts/3     0:00 psql -l
401 R       pg  7130 26918  1 178 20 e00000016adac4c0   68                - 18:29:42 pts/11    0:00 ps -u pg -lf
1401 S       pg 28778 28777  0 154 20 e00000016c591700 1130 e000000164f7e100 13:41:07 pts/3     0:00 postgres: stats
collectorprocess 
401 S       pg 28629  4112  0 158 20 e00000016aecc940  333 e000000170f9c000 13:40:53 pts/3     0:00 -sh
401 S       pg 26918 26887  0 158 20 e00000016c2a0280  351 e000000171506000 18:09:24 pts/11    0:00 -sh
1421 T       pg 29080 26918  0 154 20 e00000016a90f940  101                - 18:13:25 pts/11    0:00 psql -c select
version()

$which postmaster
/opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/bin/postmaster

$gdb `which postmaster`
HP gdb 5.0 for HP Itanium (32 or 64 bit) and target HP-UX 11.2x.
Copyright 1986 - 2001 Free Software Foundation, Inc.
Hewlett-Packard Wildebeest 5.0 (based on GDB) is covered by the
GNU General Public License. Type "show copying" to see the conditions to
change it and/or distribute copies. Type "show warranty" for warranty/support.
..
(gdb) attach 28775
Attaching to program: /opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/bin/postmaster, process 28775
Reading symbols from /usr/lib/hpux64/libxnet.so.1...done.
Reading symbols from /usr/lib/hpux64/libc.so.1...done.
Reading symbols from /usr/lib/hpux64/libgen.so.1...done.
Reading symbols from /usr/lib/hpux64/libdl.so.1...done.
Reading symbols from /usr/lib/hpux64/libnsl.so.1...done.
Reading symbols from /usr/lib/hpux64/libm.so.1...done.
Reading symbols from /usr/lib/hpux64/libxti.so.1...done.
Reading symbols from /usr/lib/hpux64/libnss_files.so.1...done.
0xc000000000304230:0 in _accept_sys+0x30 () from /usr/lib/hpux64/libc.so.1
(gdb) bt
#0  0xc000000000304230:0 in _accept_sys+0x30 () from /usr/lib/hpux64/libc.so.1
#1  0xc0000000003100b0:0 in accept+0x150 () from /usr/lib/hpux64/libc.so.1
#2  0xc000000001aac450:0 in accept+0x70 () from /usr/lib/hpux64/libxnet.so.1
#3  0x4000000000275df0:0 in StreamConnection+0x40 ()
#4  0x40000000002e7da0:0 in ConnCreate+0x80 ()
#5  0x40000000002e6530:0 in ServerLoop+0x3b0 ()
#6  0x40000000002e5740:0 in PostmasterMain+0x1300 ()
#7  0x4000000000279800:0 in main+0x520 ()
(gdb) p debug_query_string
$1 = 0
(gdb) quit
The program is running.  Quit anyway (and detach it)? (y or n) Detaching from program:
/opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/bin/postmaster,process 28775 

$which postmaster
/opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/bin/psql

$gdb `which psql`
HP gdb 5.0 for HP Itanium (32 or 64 bit) and target HP-UX 11.2x.
Copyright 1986 - 2001 Free Software Foundation, Inc.
Hewlett-Packard Wildebeest 5.0 (based on GDB) is covered by the
GNU General Public License. Type "show copying" to see the conditions to
change it and/or distribute copies. Type "show warranty" for warranty/support.
..
(gdb) attach 26752
Attaching to program: /opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/bin/psql, process 26752
Reading symbols from /opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/lib/libpq.so.3...done.
Reading symbols from /usr/lib/hpux64/libxnet.so.1...done.
Reading symbols from /usr/lib/hpux64/libc.so.1...done.
Reading symbols from /usr/lib/hpux64/libgen.so.1...done.
Reading symbols from /usr/lib/hpux64/libdl.so.1...done.
Reading symbols from /usr/lib/hpux64/libnsl.so.1...done.
Reading symbols from /usr/lib/hpux64/libm.so.1...done.
Reading symbols from /usr/lib/hpux64/libxti.so.1...done.
0xc000000000301e70:0 in _poll_sys+0x30 () from /usr/lib/hpux64/libc.so.1
(gdb) bt
#0  0xc000000000301e70:0 in _poll_sys+0x30 () from /usr/lib/hpux64/libc.so.1
#1  0xc000000000313110:0 in poll+0x150 () from /usr/lib/hpux64/libc.so.1
#2  0xc00000002d36ee70:0 in pqSocketPoll+0x110 ()
   from /opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/lib/libpq.so.3
#3  0xc00000002d36ec40:0 in pqSocketCheck+0x80 ()
   from /opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/lib/libpq.so.3
#4  0xc00000002d36eac0:0 in pqWaitTimed+0x40 ()
   from /opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/lib/libpq.so.3
#5  0xc00000002d362f60:0 in connectDBComplete+0xe0 ()
   from /opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/lib/libpq.so.3
#6  0xc00000002d362500:0 in PQsetdbLogin+0x410 ()
   from /opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/lib/libpq.so.3
#7  0x40000000000218f0:0 in main+0x510 ()
(gdb) p debug_query_string
(gdb) quit
The program is running.  Quit anyway (and detach it)? (y or n) Detaching from program:
/opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/bin/psql,process 26752 

$gdb `which psql`
HP gdb 5.0 for HP Itanium (32 or 64 bit) and target HP-UX 11.2x.
Copyright 1986 - 2001 Free Software Foundation, Inc.
Hewlett-Packard Wildebeest 5.0 (based on GDB) is covered by the
GNU General Public License. Type "show copying" to see the conditions to
change it and/or distribute copies. Type "show warranty" for warranty/support.
..
(gdb) attach 29080
Attaching to program: /opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/bin/psql, process 29080
Reading symbols from /opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/lib/libpq.so.3...done.
Reading symbols from /usr/lib/hpux64/libxnet.so.1...done.
Reading symbols from /usr/lib/hpux64/libc.so.1...done.
Reading symbols from /usr/lib/hpux64/libgen.so.1...done.
Reading symbols from /usr/lib/hpux64/libdl.so.1...done.
Reading symbols from /usr/lib/hpux64/libnsl.so.1...done.
Reading symbols from /usr/lib/hpux64/libm.so.1...done.
Reading symbols from /usr/lib/hpux64/libxti.so.1...done.
0xc000000000301e70:0 in _poll_sys+0x30 () from /usr/lib/hpux64/libc.so.1
(gdb) bt
#0  0xc000000000301e70:0 in _poll_sys+0x30 () from /usr/lib/hpux64/libc.so.1
#1  0xc000000000313110:0 in poll+0x150 () from /usr/lib/hpux64/libc.so.1
#2  0xc00000002d36ee70:0 in pqSocketPoll+0x110 ()
   from /opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/lib/libpq.so.3
#3  0xc00000002d36ec40:0 in pqSocketCheck+0x80 ()
   from /opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/lib/libpq.so.3
#4  0xc00000002d36eac0:0 in pqWaitTimed+0x40 ()
   from /opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/lib/libpq.so.3
#5  0xc00000002d362f60:0 in connectDBComplete+0xe0 ()
   from /opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/lib/libpq.so.3
#6  0xc00000002d362500:0 in PQsetdbLogin+0x410 ()
   from /opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/lib/libpq.so.3
#7  0x40000000000218f0:0 in main+0x510 ()
(gdb) quit
The program is running.  Quit anyway (and detach it)? (y or n) Detaching from program:
/opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/bin/psql,process 29080 

$uname -a
HP-UX ... B.11.23 ... ia64 ...

$file `which postmaster`
/opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/bin/postmaster:   ELF-64 executable object file - IA64

$file `which psql`
                   
/opt/pgsql/installs/postgresql-7.4.6-gcc3.3.2-B.11.23/bin/psql: ELF-64 executable object file - IA64

$psql -V
psql (PostgreSQL) 7.4.6

$postmaster -V
postmaster (PostgreSQL) 7.4.6

This is the tail end of the server log, showing nothing
was ever logged for the hung connections...

2005-02-18 14:25:45.558 [20313] LOG:  connection received: host=10.0.1.80 port=45976
2005-02-18 14:25:45.921 [20313] LOG:  connection authorized: user=pg database=pg
2005-02-18 14:25:46.394 [20313] LOG:  statement: begin; select getdatabaseencoding(); commit
2005-02-18 14:25:46.395 [20313] LOG:  duration: 0.862 ms
2005-02-18 14:25:46.807 [20313] LOG:  statement: select version()
2005-02-18 14:25:46.808 [20313] LOG:  duration: 0.646 ms
2005-02-18 14:26:47.092 [20818] LOG:  connection received: host=10.0.1.80 port=45993
2005-02-18 14:26:47.278 [20818] LOG:  connection authorized: user=pg database=pg
2005-02-18 14:26:47.461 [20818] LOG:  statement: begin; select getdatabaseencoding(); commit
2005-02-18 14:26:47.462 [20818] LOG:  duration: 0.792 ms
2005-02-18 14:26:47.696 [20818] LOG:  statement: select version()
2005-02-18 14:26:47.696 [20818] LOG:  duration: 0.557 ms
2005-02-18 14:27:47.993 [21220] LOG:  connection received: host=10.0.1.80 port=46015
2005-02-18 14:27:48.192 [21220] LOG:  connection authorized: user=pg database=pg
2005-02-18 14:27:48.384 [21220] LOG:  statement: begin; select getdatabaseencoding(); commit
2005-02-18 14:27:48.385 [21220] LOG:  duration: 0.961 ms
2005-02-18 14:27:48.560 [21220] LOG:  statement: select version()
2005-02-18 14:27:48.560 [21220] LOG:  duration: 0.545 ms
2005-02-18 14:28:48.826 [21702] LOG:  connection received: host=10.0.1.80 port=46035
2005-02-18 14:28:49.087 [21702] LOG:  connection authorized: user=pg database=pg
2005-02-18 14:28:49.318 [21702] LOG:  statement: begin; select getdatabaseencoding(); commit
2005-02-18 14:28:49.319 [21702] LOG:  duration: 0.809 ms
2005-02-18 14:28:49.516 [21702] LOG:  statement: select version()
2005-02-18 14:28:49.516 [21702] LOG:  duration: 0.360 ms
2005-02-18 14:29:49.717 [22047] LOG:  connection received: host=10.0.1.80 port=46060
2005-02-18 14:29:49.910 [22047] LOG:  connection authorized: user=pg database=pg
2005-02-18 14:29:50.138 [22047] LOG:  statement: begin; select getdatabaseencoding(); commit
2005-02-18 14:29:50.139 [22047] LOG:  duration: 0.831 ms
2005-02-18 14:29:50.320 [22047] LOG:  statement: select version()
2005-02-18 14:29:50.321 [22047] LOG:  duration: 0.539 ms
2005-02-18 14:30:50.527 [22359] LOG:  connection received: host=10.0.1.80 port=46087
2005-02-18 14:30:50.710 [22359] LOG:  connection authorized: user=pg database=pg
2005-02-18 14:30:50.927 [22359] LOG:  statement: begin; select getdatabaseencoding(); commit
2005-02-18 14:30:50.928 [22359] LOG:  duration: 0.855 ms
2005-02-18 14:30:51.105 [22359] LOG:  statement: select version()
2005-02-18 14:30:51.106 [22359] LOG:  duration: 0.641 ms


Re: hung postmaster?

От
"Ed L."
Дата:
Here's the lsof output for the hung processes...


$ lsof | egrep 'PID|28775|29080|26752'
COMMAND    PID USER   FD   TYPE             DEVICE SIZE/OFF     NODE NAME
psql     26752   pg  cwd    DIR             64,0x9     2048    12677 /users/pg
psql     26752   pg  txt    REG             64,0x6   242192    50102 /opt (/dev/vg00/lvol6)
psql     26752   pg  mem    REG             64,0x8      532     2544 /var/spool/pwgr/status
psql     26752   pg  mem    REG             64,0x7   312328     5931 /usr/lib/hpux64/libxti.so.1
psql     26752   pg  mem    REG             64,0x7  1597816    20621 /usr/lib/hpux64/libnsl.so.1
psql     26752   pg  mem    REG             64,0x7  4279160     5873 /usr/lib/hpux64/libc.so.1
psql     26752   pg  mem    REG             64,0x7  2068376     5891 /usr/lib/hpux64/libm.so.1
psql     26752   pg  mem    REG             64,0x7    22848     5878 /usr/lib/hpux64/libdl.so.1
psql     26752   pg  mem    REG             64,0x7    40016     5883 /usr/lib/hpux64/libgen.so.1
psql     26752   pg  mem    REG             64,0x7    37928     5929 /usr/lib/hpux64/libxnet.so.1
psql     26752   pg  mem    REG             64,0x6   218824    50167 /opt (/dev/vg00/lvol6)
psql     26752   pg  mem    REG             64,0x7   705704     5869 /usr/lib/hpux64/dld.so
psql     26752   pg  mem    REG             64,0x7   157912     5925 /usr/lib/hpux64/uld.so
psql     26752   pg    0u   STR            157,0x3 0t885971      955 ldterm->ptem->pts
psql     26752   pg    1u   STR            157,0x3 0t885971      955 ldterm->ptem->pts
psql     26752   pg    2u   STR            157,0x3 0t885971      955 ldterm->ptem->pts
psql     26752   pg    3u  unix             64,0x8      0t0     8046 /var/spool/sockets/pwgr/client26752 (0x743e5900)
psql     26752   pg    4u  unix         0x6f1963c0      0t0          ->0x74a76740
postgres 28775   pg  cwd    DIR             64,0x9     2048    12677 /users/pg
postgres 28775   pg  txt    REG             64,0x6  5071608    50092 /opt (/dev/vg00/lvol6)
postgres 28775   pg  mem    REG             64,0x7    13197     6216 /usr/lib/tztab
postgres 28775   pg  mem    REG             64,0x7   312328     5931 /usr/lib/hpux64/libxti.so.1
postgres 28775   pg  mem    REG             64,0x7  1597816    20621 /usr/lib/hpux64/libnsl.so.1
postgres 28775   pg  mem    REG             64,0x7   135488     5892 /usr/lib/hpux64/libnss_files.so.1
postgres 28775   pg  mem    REG             64,0x7  4279160     5873 /usr/lib/hpux64/libc.so.1
postgres 28775   pg  mem    REG             64,0x7  2068376     5891 /usr/lib/hpux64/libm.so.1
postgres 28775   pg  mem    REG             64,0x7    22848     5878 /usr/lib/hpux64/libdl.so.1
postgres 28775   pg  mem    REG             64,0x7    40016     5883 /usr/lib/hpux64/libgen.so.1
postgres 28775   pg  mem    REG             64,0x7    37928     5929 /usr/lib/hpux64/libxnet.so.1
postgres 28775   pg  mem    REG             64,0x7   705704     5869 /usr/lib/hpux64/dld.so
postgres 28775   pg  mem    REG             64,0x7   157912     5925 /usr/lib/hpux64/uld.so
postgres 28775   pg    0u   CHR              3,0x2      0t0       65 /dev/null
postgres 28775   pg    1u   REG             64,0x9    28137    49084 /users/pg/server_log
postgres 28775   pg    2u   REG             64,0x9    28137    49084 /users/pg/server_log
postgres 28775   pg    3u  sock                         0t0          unsupported family: AF_22
postgres 28775   pg    4u  inet 0xe0000001742b8900      0t0      TCP *:19001 (LISTEN)
postgres 28775   pg    5u  unix             64,0x4      0t0      138 /tmp/.s.PGSQL.19001 (0x74974ac0)
postgres 28775   pg    6u  inet 0xe00000016ef5f580      0t0      UDP localhost:55276->localhost:55276 (Idle)
postgres 28775   pg    7r  FIFO 0xe00000016a1bc748      0t0 16368987
postgres 28775   pg    8w  FIFO 0xe00000016a1bc748      0t0 16368987
psql     29080   pg  cwd    DIR             64,0x9     2048    12677 /users/pg
psql     29080   pg  txt    REG             64,0x6   242192    50102 /opt (/dev/vg00/lvol6)
psql     29080   pg  mem    REG             64,0x8      532     2544 /var/spool/pwgr/status
psql     29080   pg  mem    REG             64,0x7   312328     5931 /usr/lib/hpux64/libxti.so.1
psql     29080   pg  mem    REG             64,0x7  1597816    20621 /usr/lib/hpux64/libnsl.so.1
psql     29080   pg  mem    REG             64,0x7  4279160     5873 /usr/lib/hpux64/libc.so.1
psql     29080   pg  mem    REG             64,0x7  2068376     5891 /usr/lib/hpux64/libm.so.1
psql     29080   pg  mem    REG             64,0x7    22848     5878 /usr/lib/hpux64/libdl.so.1
psql     29080   pg  mem    REG             64,0x7    40016     5883 /usr/lib/hpux64/libgen.so.1
psql     29080   pg  mem    REG             64,0x7    37928     5929 /usr/lib/hpux64/libxnet.so.1
psql     29080   pg  mem    REG             64,0x6   218824    50167 /opt (/dev/vg00/lvol6)
psql     29080   pg  mem    REG             64,0x7   705704     5869 /usr/lib/hpux64/dld.so
psql     29080   pg  mem    REG             64,0x7   157912     5925 /usr/lib/hpux64/uld.so
psql     29080   pg    0u   STR            157,0xb 0t182144      963 ldterm->ptem->pts
psql     29080   pg    1u   STR            157,0xb 0t182144      963 ldterm->ptem->pts
psql     29080   pg    2u   STR            157,0xb 0t182144      963 ldterm->ptem->pts
psql     29080   pg    3u  unix             64,0x8      0t0     8040 /var/spool/sockets/pwgr/client29080 (0x70b593c0)
psql     29080   pg    4u  unix         0x742b8580      0t0          ->0x717b6040



Re: hung postmaster?

От
Edmund Bacon
Дата:
pgsql@bluepolka.net ("Ed L.") writes:

>
> Workin' on gdb/strace build, but having trouble with both.  Gdb
> just doesn't build from source, not sure why yet, and no depots
> found at porting center.  It doesn't appear that strace is
> supported for 11.23 itanium based on strace README/PORTING files
> and 'man 2 ptrace'.  HPUX users, is that your experience?
>

Ed, HP maintains a port of gdb called wdb (wildebeest).  You should be
able to get this from them from http://www.hp.com/go/wdb/  but I'm
getting timeouts trying to connect right now.  If this persists, let
me know and I'll try to find a way to get you my most recent download
from Dec 23.

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