503 Service Unavailable + Stop Responding

Kitai kitai at ya.com
Tue Apr 7 16:22:52 CEST 2009


Search in the "/var/log/messages" log if varnish it's restarting.

After every crash, varnish starts answering with a 503 to every request.


DAvid (Kitai) Cruz


2009/4/7 Sascha Kain <s.kain at eraffe-media.de>:
> Hi
> im getting folloing error when accessing a Picture (jpg), delivered by
> Varnish-Cache.
>
> ====================
>
>
>  Error 503 Service Unavailable
>
> Service Unavailable
>
>
>      Guru Meditation:
>
> XID: 502211958
>
> Varnish <http://www.varnish-cache.org/>
>
> ================
>
>
> This happens sporadically.
> When i access the picture from the Backend directly, its working.
>
>
> My varnishd is running on a Debian Server
> proxycache2:~# uname -a
> Linux proxycache2 2.6.18-6-amd64 #1 SMP Mon Jun 16 22:30:01 UTC 2008
> x86_64 GNU/Linux
> proxycache2:~# varnishd -V
> varnishd (varnish-2.0.3)
> Copyright (c) 2006-2008 Linpro AS / Verdens Gang AS
>
> varnishd -a :80 -b xx.xx.xx.40:80 -s malloc,15360M
>
>
> It also happens, that the daemon just stop answering on Port 80, i have
> to manually restart it!
>
>
> proxycache2:~# varnishstat -1
> uptime                 691288          .   Child uptime
> client_conn          13757134        19.90 Client connections accepted
> client_req           62501336        90.41 Client requests received
> cache_hit            59008654        85.36 Cache hits
> cache_hitpass              35         0.00 Cache hits for pass
> cache_miss            3454784         5.00 Cache misses
> backend_conn          3491596         5.05 Backend connections success
> backend_unhealthy            0         0.00 Backend connections not attempted
> backend_busy                0         0.00 Backend connections too many
> backend_fail             1094         0.00 Backend connections failures
> backend_reuse         3190621         4.62 Backend connections reuses
> backend_recycle       3300087         4.77 Backend connections recycles
> backend_unused              0         0.00 Backend connections unused
> n_srcaddr                1082          .   N struct srcaddr
> n_srcaddr_act              69          .   N active struct srcaddr
> n_sess_mem               4061          .   N struct sess_mem
> n_sess                    325          .   N struct sess
> n_object               727166          .   N struct object
> n_objecthead           412871          .   N struct objecthead
> n_smf                       0          .   N struct smf
> n_smf_frag                  0          .   N small free smf
> n_smf_large                 0          .   N large free smf
> n_vbe_conn                 25          .   N struct vbe_conn
> n_bereq                   173          .   N struct bereq
> n_wrk                      46          .   N worker threads
> n_wrk_create             6590         0.01 N worker threads created
> n_wrk_failed                0         0.00 N worker threads not created
> n_wrk_max                   0         0.00 N worker threads limited
> n_wrk_queue                 0         0.00 N queued work requests
> n_wrk_overflow          40391         0.06 N overflowed work requests
> n_wrk_drop                  0         0.00 N dropped work requests
> n_backend                   1          .   N backends
> n_expired                 498          .   N expired objects
> n_lru_nuked           2717782          .   N LRU nuked objects
> n_lru_saved                 0          .   N LRU saved objects
> n_lru_moved          50761824          .   N LRU moved objects
> n_deathrow                  0          .   N objects on deathrow
> losthdr                     0         0.00 HTTP header overflows
> n_objsendfile               0         0.00 Objects sent with sendfile
> n_objwrite           43664646        63.16 Objects sent with write
> n_objoverflow               0         0.00 Objects overflowing workspace
> s_sess               13757122        19.90 Total Sessions
> s_req                62501369        90.41 Total Requests
> s_pipe                     10         0.00 Total pipe
> s_pass                  37897         0.05 Total pass
> s_fetch               3477236         5.03 Total fetch
> s_hdrbytes        19737092290     28551.19 Total header bytes
> s_bodybytes      681892000484    986407.98 Total body bytes
> sess_closed            544021         0.79 Session Closed
> sess_pipeline          164402         0.24 Session Pipeline
> sess_readahead          65588         0.09 Session Read Ahead
> sess_linger                 0         0.00 Session Linger
> sess_herd            61809876        89.41 Session herd
> shm_records        2591397419      3748.65 SHM records
> shm_writes          170178899       246.18 SHM writes
> shm_flushes                65         0.00 SHM flushes due to overflow
> shm_cont                 5567         0.01 SHM MTX contention
> shm_cycles                931         0.00 SHM cycles through buffer
> sm_nreq                     0         0.00 allocator requests
> sm_nobj                     0          .   outstanding allocations
> sm_balloc                   0          .   bytes allocated
> sm_bfree                    0          .   bytes free
> sma_nreq              9708485        14.04 SMA allocator requests
> sma_nobj              1442487          .   SMA outstanding allocations
> sma_nbytes        16106012162          .   SMA outstanding bytes
> sma_balloc        81856959440          .   SMA bytes allocated
> sma_bfree         65750947278          .   SMA bytes free
> sms_nreq                15433         0.02 SMS allocator requests
> sms_nobj                    0          .   SMS outstanding allocations
> sms_nbytes       18446744073709546966          .   SMS outstanding bytes
> sms_balloc            7172160          .   SMS bytes allocated
> sms_bfree             7176345          .   SMS bytes freed
> backend_req           3491587         5.05 Backend requests made
> n_vcl                       1         0.00 N vcl total
> n_vcl_avail                 1         0.00 N vcl available
> n_vcl_discard               0         0.00 N vcl discarded
> n_purge                     1          .   N total active purges
> n_purge_add                 1         0.00 N new purges added
> n_purge_retire              0         0.00 N old purges deleted
> n_purge_obj_test            0         0.00 N objects tested
> n_purge_re_test             0         0.00 N regexps tested against
> n_purge_dups                0         0.00 N duplicate purges removed
> hcb_nolock                  0         0.00 HCB Lookups without lock
> hcb_lock                    0         0.00 HCB Lookups with lock
> hcb_insert                  0         0.00 HCB Inserts
> esi_parse                   0         0.00 Objects ESI parsed (unlock)
> esi_errors                  0         0.00 ESI parse errors (unlock)
>
>
>
> Sascha Kain
> IT / Administration
> eraffe media GmbH & Co. KG Marketing - Consulting - Software
> Schönfeldstr. 17 - 83022 Rosenheim
>
> Fon: + 49 (0)8031 - 941 41 -46
> Fax: + 49 (0)8031 - 941 41 -59
> E-Mail: s.kain at eraffe-media.de
> www.eraffe-media.de - www.eraffe.de
>
> eraffe media GmbH & Co. KG, Sitz: Rosenheim,
> Registergericht: AG Traunstein HR A Nr. 9104,
> St-Nr. 156/157/58806, FA Rosenheim,
> USt.-ID: DE250117972
>
> Persönlich haftende Gesellschafterin:
> eraffe media Verwaltungs-GmbH, Sitz: Rosenheim,
> Registergericht: AG Traunstein HR B 16956
> St-Nr. 156/116/90247, FA Rosenheim
>
> Geschäftsführer: Maximilian Kuss, Oliver Döser
>
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>



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