Re: Rätsel: irgendetwas blockiert manch mal
Christian Fromme wrote:
> Mick wrote:
> > ich stehe vor einem Rätsel. Verschiedene "Dinge" werden oft
> > gebremst. So dauert es zB manchmal Minuten bis Cyrus IMAP
> > antwortet, was zum Timeout bei der Mailabfrage führt. SNMP requests
> > führen oft zu Timeouts.
>
> Ohne die Mail komplett gelesen zu haben:
>
> DNS? /etc/network/interfaces korrekt? Ich würde mal versuchen, einen
> der "langsamen" Dienste, z.B. Cyrus IMAP zu debuggen. D.h. debug level
> hochdrehen und mit Ethereal ran.
>
> Gruss
Mir sagt das nichts, aber vielleicht könnt ihr etwas damit anfangen. Im
folgenden Log-Ausschnitt ist zu erkennen, dass die 3 Meldungen "about
to exec", "executed" und "accepted connection" normalerweise in der
selben Sekunde gelogt werden. Im Fehlerfall liegt jeweils viel Zeit
dazwischen.
Was kann dazwischen blockieren?
>>>
Aug 8 11:06:18 localhost cyrus/master[14034]: about to exec
/usr/lib/cyrus/bin/imapd
Aug 8 11:06:38 localhost cyrus/imap[14034]: executed
Aug 8 11:06:58 localhost cyrus/imapd[14034]: accepted connection
Aug 8 11:07:18 localhost postfix/pickup[13392]:
trigger_server_accept_fifo: trigger arrived
Aug 8 11:07:38 localhost postfix/pickup[13392]: master_notify: status 0
Aug 8 11:07:58 localhost postfix/pickup[13392]: master_notify: status 1
Aug 8 11:08:18 localhost postfix/pickup[13392]: watchdog_start:
0x80536c0
Aug 8 11:08:38 localhost cyrus/master[3427]: process 14034 exited,
status 0
Aug 8 11:08:58 localhost postfix/pickup[13392]:
trigger_server_accept_fifo: trigger arrived
Aug 8 11:09:18 localhost postfix/pickup[13392]: master_notify: status 0
Aug 8 11:09:38 localhost postfix/pickup[13392]: master_notify: status 1
Aug 8 11:09:58 localhost postfix/pickup[13392]: watchdog_start:
0x80536c0
Aug 8 11:10:18 localhost postfix/pickup[13392]:
trigger_server_accept_fifo: trigger arrived
Aug 8 11:10:38 localhost postfix/pickup[13392]: master_notify: status 0
Aug 8 11:10:58 localhost postfix/pickup[13392]: master_notify: status 1
Aug 8 11:11:18 localhost postfix/pickup[13392]: watchdog_start:
0x80536c0
Aug 8 11:12:38 localhost postfix/pickup[13392]:
trigger_server_accept_fifo: trigger arrived
Aug 8 11:12:58 localhost postfix/pickup[13392]: master_notify: status 0
Aug 8 11:13:18 localhost postfix/pickup[13392]: master_notify: status 1
Aug 8 11:13:38 localhost postfix/pickup[13392]: watchdog_start:
0x80536c0
Aug 8 11:13:58 localhost postfix/pickup[13392]:
trigger_server_accept_fifo: trigger arrived
Aug 8 11:14:18 localhost postfix/pickup[13392]: master_notify: status 0
Aug 8 11:14:39 localhost postfix/pickup[13392]: master_notify: status 1
Aug 8 11:14:59 localhost postfix/pickup[13392]: watchdog_start:
0x80536c0
Aug 8 11:15:19 localhost cyrus/master[14058]: about to exec
/usr/lib/cyrus/bin/imapd
Aug 8 11:15:39 localhost postfix/pickup[13392]:
trigger_server_accept_fifo: trigger arrived
Aug 8 11:15:59 localhost cyrus/imap[14058]: executed
Aug 8 11:16:19 localhost postfix/pickup[13392]: master_notify: status 0
Aug 8 11:16:39 localhost cyrus/imapd[14058]: accepted connection
Aug 8 11:16:59 localhost postfix/pickup[13392]: master_notify: status 1
Aug 8 11:17:19 localhost postfix/pickup[13392]: watchdog_start:
0x80536c0
Aug 8 11:17:39 localhost postfix/pickup[13392]:
trigger_server_accept_fifo: trigger arrived
Aug 8 11:17:59 localhost cyrus/master[3427]: process 14058 exited,
status 0
<<<
/M
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