Hi.
On Aug 19, 2009, at 3:18 PM, Sebastian Harl wrote:
Hi again,
On Sat, Jul 04, 2009 at 08:29:49PM -0600, thomas morgan wrote:
There is some kind of incompatibility between collectd and powerdns
2.9.22. With powerdns support enabled in collectd, collectd connects
to powerdns's unix socket. The connection hangs indefinitely.
[…]
collectd will no longer even shutdown and must be kill -9'd. It
render
powerdns's control socket useless as well, so it can no longer be
managed either (until collectd is killed).
Things work as expected with powerdns 2.9.21.2. I tried collectd
4.6.2
also, with the same problem.
On Mon, Jul 27, 2009 at 05:36:37PM -0700, Luke Heberling wrote:
OK, two problems.
Problem number one seems to have been introduced with the
LocalSocket option.
In fact, that config value is ignored in favor of its key, the
literal
"LocalSocket". So the plugin creates the socket as "LocalSocket",
connects to
the pdns control socket and sends the data. When the pdns control
socket
attempts to send data back, it finds no socket called "LocalSocket"
as it's in
a different working directory.
[…]
Hrm … reading through the original bug report again, I think there's
another issue as well. Thomas, did you use the 'LocalSocket' config
option at all? Could you please provide your configuration? Since the
problem did not exist when using powerdns 2.9.21.2 this issue seems to
be unrelated to that option.
Here's the exact config section:
<Plugin powerdns>
<Server "stage01">
# Collect "latency"
# Collect "udp-answers" "udp-queries"
Socket "/var/run/pdns.controlsocket"
</Server>
# <Recursor "recursor_name">
# Collect "questions"
# Collect "cache-hits" "cache-misses"
# Socket "/var/run/pdns_recursor.controlsocket"
# </Recursor>
# LocalSocket "/opt/collectd/var/run/collectd-powerdns"
</Plugin>
As you can see, LocalSocket is commented out.
Thomas, could you please provide the output for the following commands
(issued when collectd hangs):
Hope these are what you're looking for. If not, let me know and I'll
try again. Run with these versions:
collectd 4.6.3-1~bpo50+1
pdns-server, pdns-backend-pgsql 2.9.22-1~bpo50+1
amd64
* lsof -p <pid of collectd>
# lsof -p 5296
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME
collectd 5296 root cwd DIR 202,2 4096 268259 /
var/lib/collectd
collectd 5296 root rtd DIR 202,2 4096 2 /
collectd 5296 root txt REG 202,2 139544 434017 /
usr/sbin/collectd
collectd 5296 root mem REG 202,2 119288 131110 /
lib/ld-2.7.so
collectd 5296 root mem REG 202,2 130114 131103 /
lib/libpthread-2.7.so
collectd 5296 root mem REG 202,2 14616 131111 /
lib/libdl-2.7.so
collectd 5296 root mem REG 202,2 1375536 131107 /
lib/libc-2.7.so
collectd 5296 root mem REG 202,2 5176 39306 /
usr/lib/collectd/syslog.so
collectd 5296 root mem REG 202,2 6672 39259 /
usr/lib/collectd/cpu.so
collectd 5296 root mem REG 202,2 13152 39264 /
usr/lib/collectd/df.so
collectd 5296 root mem REG 202,2 8712 39265 /
usr/lib/collectd/disk.so
collectd 5296 root mem REG 202,2 7208 39272 /
usr/lib/collectd/interface.so
collectd 5296 root mem REG 202,2 5288 39278 /
usr/lib/collectd/load.so
collectd 5296 root mem REG 202,2 6624 39285 /
usr/lib/collectd/memory.so
collectd 5296 root mem REG 202,2 24824 39299 /
usr/lib/collectd/powerdns.so
collectd 5296 root mem REG 202,2 14128 39300 /
usr/lib/collectd/processes.so
collectd 5296 root mem REG 202,2 20912 39301 /
usr/lib/collectd/rrdtool.so
collectd 5296 root mem REG 202,2 208880 434014 /
usr/lib/librrd_th.so.4.0.0
collectd 5296 root mem REG 202,2 534736 131106 /
lib/libm-2.7.so
collectd 5296 root mem REG 202,2 430633 /
usr/lib/libxml2.so.2.6.32 (path inode=428931)
collectd 5296 root mem REG 202,2 153304 433424 /
usr/lib/libpng12.so.0.27.0
collectd 5296 root mem REG 202,2 44792 433980 /
usr/lib/libpangocairo-1.0.so.0.2002.3
collectd 5296 root mem REG 202,2 292024 433978 /
usr/lib/libpango-1.0.so.0.2002.3
collectd 5296 root mem REG 202,2 477736 433524 /
usr/lib/libcairo.so.2.17.5
collectd 5296 root mem REG 202,2 277520 433820 /
usr/lib/libgobject-2.0.so.0.1600.6
collectd 5296 root mem REG 202,2 12520 433821 /
usr/lib/libgmodule-2.0.so.0.1600.6
collectd 5296 root mem REG 202,2 795864 430436 /
usr/lib/libglib-2.0.so.0.1600.6
collectd 5296 root mem REG 202,2 93504 428258 /
usr/lib/libz.so.1.2.3.3
collectd 5296 root mem REG 202,2 181272 433982 /
usr/lib/libpangoft2-1.0.so.0.2002.3
collectd 5296 root mem REG 202,2 541512 432426 /
usr/lib/libfreetype.so.6.3.18
collectd 5296 root mem REG 202,2 200344 432470 /
usr/lib/libfontconfig.so.1.3.0
collectd 5296 root mem REG 202,2 485864 433511 /
usr/lib/libdirectfb-1.0.so.0.1.0
collectd 5296 root mem REG 202,2 34008 433512 /
usr/lib/libfusion-1.0.so.0.1.0
collectd 5296 root mem REG 202,2 86896 433510 /
usr/lib/libdirect-1.0.so.0.1.0
collectd 5296 root mem REG 202,2 12888 433522 /
usr/lib/libxcb-render-util.so.0.0.0
collectd 5296 root mem REG 202,2 33304 433545 /
usr/lib/libxcb-render.so.0.0.0
collectd 5296 root mem REG 202,2 114176 431481 /
usr/lib/libxcb.so.1.0.0
collectd 5296 root mem REG 202,2 38296 432382 /
usr/lib/libXrender.so.1.3.0
collectd 5296 root mem REG 202,2 1096880 429833 /
usr/lib/libX11.so.6.2.0
collectd 5296 root mem REG 202,2 183856 433518 /
usr/lib/libpixman-1.so.0.10.0
collectd 5296 root mem REG 202,2 162816 430292 /
usr/lib/libpcre.so.3.12.1
collectd 5296 root mem REG 202,2 169776 430370 /
usr/lib/libexpat.so.1.5.2
collectd 5296 root mem REG 202,2 9824 429825 /
usr/lib/libXau.so.6.0.0
collectd 5296 root mem REG 202,2 20096 429827 /
usr/lib/libXdmcp.so.6.0.0
collectd 5296 root mem REG 202,2 5896 431483 /
usr/lib/libxcb-xlib.so.0.0.0
collectd 5296 root mem REG 202,2 6616 39305 /
usr/lib/collectd/swap.so
collectd 5296 root mem REG 202,2 5096 39315 /
usr/lib/collectd/users.so
collectd 5296 root mem REG 202,2 47520 131104 /
lib/libnss_files-2.7.so
collectd 5296 root 0u CHR 1,3 827 /
dev/null
collectd 5296 root 1u CHR 1,3 827 /
dev/null
collectd 5296 root 2u CHR 1,3 827 /
dev/null
collectd 5296 root 3u unix 0xffff88002faf4c80 7717883
socket
collectd 5296 root 8u unix 0xffff88002eed3080 14522374
socket
* lsof -p <pid of pdns>
# lsof -p 29492
COMMAND PID USER FD TYPE DEVICE SIZE NODE
NAME
pdns_serv 29492 root cwd DIR 202,2 4096 262159 /
var/run
pdns_serv 29492 root rtd DIR 202,2 4096 2 /
pdns_serv 29492 root txt REG 202,2 1252408 430699 /
usr/sbin/pdns_server
pdns_serv 29492 root mem REG 202,2 119288 131110 /
lib/ld-2.7.so
pdns_serv 29492 root mem REG 202,2 14616 131111 /
lib/libdl-2.7.so
pdns_serv 29492 root mem REG 202,2 93504 428258 /
usr/lib/libz.so.1.2.3.3
pdns_serv 29492 root mem REG 202,2 1019216 427522 /
usr/lib/libstdc++.so.6.0.10
pdns_serv 29492 root mem REG 202,2 534736 131106 /
lib/libm-2.7.so
pdns_serv 29492 root mem REG 202,2 93016 131136 /
lib/libgcc_s.so.1
pdns_serv 29492 root mem REG 202,2 130114 131103 /
lib/libpthread-2.7.so
pdns_serv 29492 root mem REG 202,2 1375536 131107 /
lib/libc-2.7.so
pdns_serv 29492 root mem REG 202,2 31536 131099 /
lib/libnss_compat-2.7.so
pdns_serv 29492 root mem REG 202,2 88968 131097 /
lib/libnsl-2.7.so
pdns_serv 29492 root mem REG 202,2 43472 131087 /
lib/libnss_nis-2.7.so
pdns_serv 29492 root mem REG 202,2 47520 131104 /
lib/libnss_files-2.7.so
pdns_serv 29492 root 0u CHR 1,3 827 /
dev/null
pdns_serv 29492 root 1u CHR 1,3 827 /
dev/null
pdns_serv 29492 root 2u CHR 1,3 827 /
dev/null
pdns_serv 29492 root 3u unix 0xffff88003a890080 14522293
socket
pdns_serv 29492 root 4u unix 0xffff88003a890c80 14522295 /
var/run/pdns.controlsocket
pdns_serv 29492 root 5u unix 0xffff88002eed3380 14522304 /
var/run/pdns.controlsocket
pdns_serv 29492 root 6w FIFO 0,6 14522299
pipe
pdns_serv 29492 root 7r FIFO 0,6 14522300
pipe
pdns_serv 29492 root 8u unix 0xffff88002eed3380 14522304 /
var/run/pdns.controlsocket
* strace -p <pid of collectd>
# strace -p 5296
Process 5296 attached - interrupt to quit
restart_syscall(<... resuming interrupted call ...>) = 0
gettimeofday({1250742124, 386860}, NULL) = 0
time(NULL) = 1250742124
futex(0x6219e4, FUTEX_CMP_REQUEUE, 1, 2147483647, 0x6219a0, 3620962) = 4
futex(0x6219a0, FUTEX_WAKE, 1) = 1
gettimeofday({1250742124, 389152}, NULL) = 0
nanosleep({9, 997708000}, {9, 997708000}) = 0
gettimeofday({1250742134, 396795}, NULL) = 0
time(NULL) = 1250742134
futex(0x6219e4, FUTEX_CMP_REQUEUE, 1, 2147483647, 0x6219a0, 3620970) = 4
futex(0x6219a0, FUTEX_WAKE, 1) = 1
gettimeofday({1250742134, 398535}, NULL) = 0
nanosleep({9, 998260000}, {9, 998260000}) = 0
gettimeofday({1250742144, 406810}, NULL) = 0
time(NULL) = 1250742144
futex(0x6219e4, FUTEX_CMP_REQUEUE, 1, 2147483647, 0x6219a0, 3620978) = 4
futex(0x6219a0, FUTEX_WAKE, 1) = 1
gettimeofday({1250742144, 408491}, NULL) = 0
nanosleep({9, 998319000}, <unfinished ...>
Process 5296 detached
* strace -p <pid of pdns>
# strace -p 29492
Process 29492 attached - interrupt to quit
restart_syscall(<... resuming interrupted call ...>) = 0
wait4(29494, 0x7fff238025b8, WNOHANG, NULL) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGCHLD, NULL, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
nanosleep({1, 0}, {1, 0}) = 0
wait4(29494, 0x7fff238025b8, WNOHANG, NULL) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGCHLD, NULL, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
nanosleep({1, 0}, {1, 0}) = 0
wait4(29494, 0x7fff238025b8, WNOHANG, NULL) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGCHLD, NULL, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
nanosleep({1, 0}, {1, 0}) = 0
wait4(29494, 0x7fff238025b8, WNOHANG, NULL) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGCHLD, NULL, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
nanosleep({1, 0}, {1, 0}) = 0
wait4(29494, 0x7fff238025b8, WNOHANG, NULL) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGCHLD, NULL, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
nanosleep({1, 0}, {1, 0}) = 0
wait4(29494, 0x7fff238025b8, WNOHANG, NULL) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGCHLD, NULL, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
nanosleep({1, 0}, <unfinished ...>
Process 29492 detached
Thanks for your help on this.
--t
Cheers,
Sebastian
--
Sebastian "tokkee" Harl +++ GnuPG-ID: 0x8501C7FC +++ http://
tokkee.org/
Those who would give up Essential Liberty to purchase a little
Temporary
Safety, deserve neither Liberty nor Safety. -- Benjamin
Franklin
--
To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
