Tom Lane wrote:
Erik Jones <erik@xxxxxxxxxx> writes:
Hmm... This gets stranger and stranger. When connecting to the
database with the psql client in 8.2's bin directory and using commands
such as \d the client hangs, or takes an extremely long time.
Hangs at what point? During connection? Try strace'ing psql (or
whatever the Solaris equivalent is) to see what it's doing.
Ok, here's the truss output when attached to psql with "\d pg_class", I
put a marker where the pause is. Note that today the pause is only
(sic) about 3-4 seconds long before the command completes and the output
is displayed and that the only difference in the system between
yesterday and today is that today we don't have a dump running. I
realize that most of this output below is unnecessary, but while I know
what most of this is doing individually, I wouldn't know what to cut out
for brevity's sake without accidentally also clipping something that is
needed.
read(0, 0x08047B7B, 1) (sleeping...)
read(0, " \", 1) = 1
write(1, " \", 1) = 1
read(0, " d", 1) = 1
write(1, " d", 1) = 1
read(0, " ", 1) = 1
write(1, " ", 1) = 1
read(0, " ", 1) = 1
write(1, " ", 1) = 1
read(0, " p", 1) = 1
write(1, " p", 1) = 1
read(0, "7F", 1) = 1
write(1, "\b \b", 3) = 3
read(0, "7F", 1) = 1
write(1, "\b \b", 3) = 3
read(0, " p", 1) = 1
write(1, " p", 1) = 1
read(0, " g", 1) = 1
write(1, " g", 1) = 1
read(0, " _", 1) = 1
write(1, " _", 1) = 1
read(0, " c", 1) = 1
write(1, " c", 1) = 1
read(0, " l", 1) = 1
write(1, " l", 1) = 1
read(0, " a", 1) = 1
write(1, " a", 1) = 1
read(0, " s", 1) = 1
write(1, " s", 1) = 1
read(0, " s", 1) = 1
write(1, " s", 1) = 1
read(0, "\r", 1) = 1
write(1, "\n", 1) = 1
lwp_sigmask(SIG_SETMASK, 0x00000002, 0x00000000) = 0xFFBFFEFF [0x0000FFFF]
ioctl(0, TCSETSW, 0xFEF431E0) = 0
lwp_sigmask(SIG_SETMASK, 0x00000000, 0x00000000) = 0xFFBFFEFF [0x0000FFFF]
sigaction(SIGINT, 0x08047B80, 0x08047BD0) = 0
sigaction(SIGTERM, 0x08047B80, 0x08047BD0) = 0
sigaction(SIGQUIT, 0x08047B80, 0x08047BD0) = 0
sigaction(SIGALRM, 0x08047B80, 0x08047BD0) = 0
sigaction(SIGTSTP, 0x08047B80, 0x08047BD0) = 0
sigaction(SIGTTOU, 0x08047B80, 0x08047BD0) = 0
sigaction(SIGTTIN, 0x08047B80, 0x08047BD0) = 0
sigaction(SIGWINCH, 0x08047B80, 0x08047BD0) = 0
sigaction(SIGWINCH, 0x08047B80, 0x08047BD0) = 0
sigaction(SIGPIPE, 0x08046E20, 0x08046E70) = 0
send(4, " Q\0\0\0E5 S E L E C T ".., 230, 0) = 230
<----------------------------------------------------------- Hang is
right here!
sigaction(SIGPIPE, 0x08046E20, 0x08046E70) = 0
pollsys(0x08046EE8, 1, 0x00000000, 0x00000000) (sleeping...)
pollsys(0x08046EE8, 1, 0x00000000, 0x00000000) = 1
recv(4, " T\0\0\0 P\003 o i d\0\0".., 16384, 0) = 140
sigaction(SIGPIPE, 0x08046E20, 0x08046E70) = 0
send(4, " Q\0\0\08F S E L E C T ".., 144, 0) = 144
sigaction(SIGPIPE, 0x08046E20, 0x08046E70) = 0
pollsys(0x08046EE8, 1, 0x00000000, 0x00000000) = 1
recv(4, " T\0\0\0D3\007 r e l h a".., 16384, 0) = 272
sigaction(SIGPIPE, 0x08046E20, 0x08046E70) = 0
send(4, " Q\0\00186 S E L E C T ".., 391, 0) = 391
sigaction(SIGPIPE, 0x08046E20, 0x08046E70) = 0
pollsys(0x08046EE8, 1, 0x00000000, 0x00000000) = 1
recv(4, " T\0\0\08F\005 a t t n a".., 16384, 0) = 1375
sigaction(SIGPIPE, 0x08046E20, 0x08046E70) = 0
send(4, " Q\0\001 g S E L E C T ".., 360, 0) = 360
sigaction(SIGPIPE, 0x08046E20, 0x08046E70) = 0
pollsys(0x08046EE8, 1, 0x00000000, 0x00000000) = 1
recv(4, " T\0\0\0DD\007 r e l n a".., 16384, 0) = 526
sigaction(SIGPIPE, 0x08046E20, 0x08046E70) = 0
send(4, " Q\0\0\090 S E L E C T ".., 145, 0) = 145
sigaction(SIGPIPE, 0x08046E20, 0x08046E70) = 0
pollsys(0x08046EE8, 1, 0x00000000, 0x00000000) = 1
recv(4, " T\0\0\0 \001 r e l n a".., 16384, 0) = 51
ioctl(0, TCGETA, 0x08046F24) = 0
ioctl(1, TCGETA, 0x08046F24) = 0
ioctl(1, TIOCGWINSZ, 0x08046F58) = 0
write(1, " T a b l e ".., 34) = 34
write(1, " C o l u m n ".., 41) = 41
write(1, " - - - - - - - - - - - -".., 41) = 41
write(1, " r e l n a m e ".., 39) = 39
write(1, " r e l n a m e s p a c".., 39) = 39
write(1, " r e l t y p e ".., 39) = 39
write(1, " r e l o w n e r ".., 39) = 39
write(1, " r e l a m ".., 39) = 39
write(1, " r e l f i l e n o d e".., 39) = 39
write(1, " r e l t a b l e s p a".., 39) = 39
write(1, " r e l p a g e s ".., 39) = 39
write(1, " r e l t u p l e s ".., 39) = 39
write(1, " r e l t o a s t r e l".., 39) = 39
write(1, " r e l t o a s t i d x".., 39) = 39
write(1, " r e l h a s i n d e x".., 39) = 39
write(1, " r e l i s s h a r e d".., 39) = 39
write(1, " r e l k i n d ".., 39) = 39
write(1, " r e l n a t t s ".., 39) = 39
write(1, " r e l c h e c k s ".., 39) = 39
write(1, " r e l t r i g g e r s".., 39) = 39
write(1, " r e l u k e y s ".., 39) = 39
write(1, " r e l f k e y s ".., 39) = 39
write(1, " r e l r e f s ".., 39) = 39
write(1, " r e l h a s o i d s ".., 39) = 39
write(1, " r e l h a s p k e y ".., 39) = 39
write(1, " r e l h a s r u l e s".., 39) = 39
write(1, " r e l h a s s u b c l".., 39) = 39
write(1, " r e l f r o z e n x i".., 39) = 39
write(1, " r e l a c l ".., 31) = 31
write(1, " r e l o p t i o n s ".., 31) = 31
write(1, " I n d e x e s :\n", 9) = 9
write(1, " " p g _ c l a s".., 45) = 45
write(1, " " p g _ c l a s".., 71) = 71
write(1, "\n", 1) = 1
lwp_sigmask(SIG_SETMASK, 0x00000002, 0x00000000) = 0xFFBFFEFF [0x0000FFFF]
ioctl(0, TIOCGWINSZ, 0x08047B58) = 0
ioctl(0, TIOCSWINSZ, 0x08047B58) = 0
ioctl(0, TCGETS, 0x08047BB0) = 0
ioctl(0, TCSETSW, 0x08047BB0) = 0
lwp_sigmask(SIG_SETMASK, 0x00000000, 0x00000000) = 0xFFBFFEFF [0x0000FFFF]
sigaction(SIGINT, 0x08047AA0, 0x08047B10) = 0
sigaction(SIGTERM, 0x08047AA0, 0x08047B10) = 0
sigaction(SIGQUIT, 0x08047AA0, 0x08047B10) = 0
sigaction(SIGALRM, 0x08047B00, 0x08047B70) = 0
sigaction(SIGTSTP, 0x08047AA0, 0x08047B10) = 0
sigaction(SIGTTOU, 0x08047AA0, 0x08047B10) = 0
sigaction(SIGTTIN, 0x08047AA0, 0x08047B10) = 0
sigaction(SIGWINCH, 0x08047AA0, 0x08047B10) = 0
write(1, " e m m a 2 = # ", 8) = 8
read(0, 0x08047B7B, 1) (sleeping...)
--
erik jones <erik@xxxxxxxxxx>
software development
emma(r)
