Varnish dumping cache?

[Skye Poier Nott]

Update:  I ran varnishd in foreground with -d and I'm seeing these  
periodically, which would explain the cache invalidation...

Child not responding to ping
Cache child died pid=23899 status=0x9
Clean child
Child cleaned
start child pid 23914
Child said (2, 23914): <<Child starts
managed to mmap 137438953472 bytes of 137438953472
Ready
CLI ready
 >>
Cache child died pid=23914 status=0xb
Clean child
Child cleaned
start child pid 23916
Child said (2, 23916): <<Child starts
managed to mmap 137438953472 bytes of 137438953472
Ready
CLI ready
 >>
Cache child died pid=23916 status=0xb
Clean child
Child cleaned
start child pid 23917
Child said (2, 23917): <<Child starts
managed to mmap 137438953472 bytes of 137438953472
Ready
CLI ready
 >>
Child said (2, 23917): <<getnameinfo = 5 ai_family not supported
getnameinfo = 5 ai_family not supported
 >>

I'm running varnish-1.1.2 built out of ports on amd64...?
# uname -a
FreeBSD 6.3-RELEASE FreeBSD 6.3-RELEASE #0: Wed Jan 16 01:43:02 UTC  
2008     root at palmer.cse.buffalo.edu:/usr/obj/usr/src/sys/SMP  amd64

Skye


On 14-Apr-08, at 11:55 AM, Skye Poier Nott wrote:
> Hello,
>
> I'm a new Varnish user (coming from Squid - glad to be rid of it) but
> I'm seeing some strange behaviour when I test load a Varnish server.
> I have a configuration of 4 machines with 250 http client test threads
> each requesting a set of 46 files from 2,000 virtual hosts (92,000
> objects total).  But while it's running, I see the following:
>
> # while ((1)); do
> date
> varnishstat -1 | grep n_object
> sleep 5
> done
>
> n_object will climb steadily and then all of a sudden, it all goes  
> away:
>
> n_objecthead            86765          .   N struct objecthead
> Mon Apr 14 11:51:06 PDT 2008
> n_object                86780          .   N struct object
> n_objecthead            86782          .   N struct objecthead
> Mon Apr 14 11:51:11 PDT 2008
> n_object                  358          .   N struct object
> n_objecthead              358          .   N struct objecthead
> Mon Apr 14 11:51:16 PDT 2008
> n_object                  358          .   N struct object
> n_objecthead              358          .   N struct objecthead
>
> I don't see anything in varnishlog -i Error when this happens but I'm
> not sure where to look.
> Here's my config:
>
> param.show
> 200 783
> user                 nobody (65534)
> group                nogroup (65533)
> default_ttl          86400 [seconds]
> thread_pools         1 [pools]
> thread_pool_max      1000 [threads]
> thread_pool_min      1 [threads]
> thread_pool_timeout  120 [seconds]
> overflow_max         100 [%]
> http_workspace       8192 [bytes]
> sess_timeout         5 [seconds]
> pipe_timeout         60 [seconds]
> send_timeout         600 [seconds]
> auto_restart         on [bool]
> fetch_chunksize      128 [kilobytes]
> sendfile_threshold   unlimited [bytes]
> vcl_trace            off [bool]
> listen_address       ":80"
> listen_depth         1024 [connections]
> srcaddr_hash         1049 [buckets]
> srcaddr_ttl          30 [seconds]
> backend_http11       off [bool]
> client_http11        off [bool]
> ping_interval        3 [seconds]
>
> storage is varnishd_storage="file,/var/cache/varnish,128G" (pre- 
> alloced)
> on FreeBSD 6.3-RELEASE
>
> Thanks for helping this Varnish newbie.  Great daemon!
>
> Skye
>
>
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