Mailing List Archive: Varnish: Bugs

#1082: Deadlock?

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varnish-bugs at varnish-cache

Jan 8, 2012, 9:01 AM

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#1082: Deadlock?

#1082: Deadlock?
--------------------+-------------------------------------------------------
Reporter: philip | Type: defect
Status: new | Priority: normal
Milestone: | Component: varnishd
Version: 3.0.0 | Severity: normal
Keywords: |
--------------------+-------------------------------------------------------
Hi,

I just rolled out varnish into production with the latest stable 3
release. After serving lots of requests and peaking at 600Mbps I got
something that looked like a deadlook. The server was not responding to
requests anymore. I routed all the requests away from the varnish cache to
the backend.

After no requests reaching the varnish server anymore I checked the system
usage with "atop". The HDD was under heavy use:

{{{

DSK | sda | busy 104% | read 4044 | write 6 | avio 2
ms |
DSK | sdb | busy 104% | read 13604 | write 7 | avio 0
ms |
NET | transport | tcpi 3321 | tcpo 6472 | udpi 0 | udpo
7 |
NET | network | ipi 3333 | ipo 2291 | ipfrw 0 | deliv
3333 |
NET | eth0 0% | pcki 3333 | pcko 6739 | si 172 Kbps | so 8029
Kbps |

}}}

This server *only* runs varnish. I have attached the /etc/default/varnish
and /etc/varnish/default.vcl files.

--
Ticket URL: <https://www.varnish-cache.org/trac/ticket/1082>
Varnish <https://varnish-cache.org/>
The Varnish HTTP Accelerator

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varnish-bugs at varnish-cache

Jan 9, 2012, 3:05 AM

Post #2 of 3 (93 views)
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Re: #1082: Deadlock? [In reply to]

varnish-bugs at varnish-cache

Feb 27, 2012, 4:42 AM

Post #3 of 3 (48 views)
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Re: #1082: Deadlock? [In reply to]

#1082: Deadlock?
----------------------+-----------------------------------------------------
Reporter: philip | Type: defect
Status: closed | Priority: normal
Milestone: | Component: varnishd
Version: 3.0.0 | Severity: normal
Resolution: invalid | Keywords:
----------------------+-----------------------------------------------------
Changes (by scoof):

* status: new => closed
* resolution: => invalid

Comment:

Closing due to lack of information

--
Ticket URL: <https://www.varnish-cache.org/trac/ticket/1082#comment:2>
Varnish <https://varnish-cache.org/>
The Varnish HTTP Accelerator

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