requests keep timing out
Tung Nguyen
tnguyen at bleacherreport.com
Wed Apr 1 16:24:03 CEST 2009
Hey guys,
Our requests seem to be getting timed out. I set all the timeout parameters
pretty high, so wondering what could be causing it.
Also, how do I check out the number of current threads being used in
varnishstat?
Thanks,
Tung
# ps auxww | grep varnish
root 2649 0.0 2.4 101776 82744 pts/0 S< 13:48 0:00 varnishlog
-w varnish.log
root 4301 0.0 0.0 110552 1136 ? S<s 14:05 0:00
/usr/sbin/varnishd -P /var/run/varnishd.pid -a :6081 -T localhost:6082 -p
sess_timeout 25 -p obj_workspace 8192 -p sess_workspace 32768 -p
listen_depth 8192 -p connect_timeout 3s -p thread_pool_min 100 -f
/etc/varnish/default.vcl
nobody 4302 0.0 1.1 7781688 39468 ? S<l 14:05 0:00
/usr/sbin/varnishd -P /var/run/varnishd.pid -a :6081 -T localhost:6082 -p
sess_timeout 25 -p obj_workspace 8192 -p sess_workspace 32768 -p
listen_depth 8192 -p connect_timeout 3s -p thread_pool_min 100 -f
/etc/varnish/default.vcl
root 4872 0.0 0.0 3876 556 pts/0 R<+ 14:22 0:00 grep
--colour=auto varnish
#
0 VCL_call - prefetch
0 VCL_return - fetch
0 Debug - "Attempt Prefetch 1804102565"
0 Backend_health - A3 Still healthy 4--X-S-RH 5 3 5 0.000000 0.000000
HTTP/1.1 200 OK
0 Backend_health - A1 Still healthy 4--X-S-RH 5 3 5 0.000000 0.001500
HTTP/1.1 200 OK
0 Backend_health - A6 Still healthy 4--X-S-RH 5 3 5 0.000000 0.000001
HTTP/1.1 200 OK
0 Backend_health - A2 Still healthy 4--X-S-RH 5 3 5 0.000000 0.000000
HTTP/1.1 200 OK
0 Backend_health - A4 Still healthy 4--X-S-RH 5 3 5 0.000000 0.000042
HTTP/1.1 200 OK
0 ExpPick - 1804096341 ttl
0 VCL_call - timeout
0 VCL_return - discard
0 ExpKill - 1804096341 -30
0 ExpPick - 1804096350 ttl
0 VCL_call - timeout
0 VCL_return - discard
0 ExpKill - 1804096350 -30
0 ExpPick - 1804096354 ttl
0 VCL_call - timeout
0 VCL_return - discard
0 ExpKill - 1804096354 -30
0 ExpPick - 1804096376 ttl
0 VCL_call - timeout
0 VCL_return - discard
0 ExpKill - 1804096376 -30
0 ExpPick - 1804096384 ttl
0 VCL_call - timeout
0 VCL_return - discard
0 ExpKill - 1804096384 -30
0 CLI - Rd ping
0 CLI - Wr 0 200 PONG 1238593700 1.0
0 Backend_health - A5 Still healthy 4--X-S-RH 5 3 5 0.000000 0.000000
HTTP/1.1 200 OK
0 ExpPick - 1804102829 prefetch
0 VCL_call - prefetch
0 VCL_return - fetch
0 Debug - "Attempt Prefetch 1804102829"
0 Backend_health - A3 Still healthy 4--X-S-RH 5 3 5 0.000000 0.000000
HTTP/1.1 200 OK
0 Backend_health - A1 Still healthy 4--X-S-RH 5 3 5 0.000000 0.001125
HTTP/1.1 200 OK
0 Backend_health - A6 Still healthy 4--X-S-RH 5 3 5 0.000000 0.000001
HTTP/1.1 200 OK
0 Backend_health - A2 Still healthy 4--X-S-RH 5 3 5 0.000000 0.000000
HTTP/1.1 200 OK
0 Backend_health - A4 Still healthy 4--X-S-RH 5 3 5 0.000000 0.000032
HTTP/1.1 200 OK
0 CLI - Rd ping
0 CLI - Wr 0 200 PONG 1238593703 1.0
0 ExpPick - 1803925354 ttl
0 VCL_call - timeout
param.show
200 2137
accept_fd_holdoff 50 [ms]
acceptor default (epoll, poll)
auto_restart on [bool]
backend_http11 on [bool]
between_bytes_timeout 60.000000 [s]
cache_vbe_conns off [bool]
cc_command "exec cc -fpic -shared -Wl,-x -o %o %s"
cli_buffer 8192 [bytes]
cli_timeout 5 [seconds]
client_http11 off [bool]
clock_skew 10 [s]
connect_timeout 1.000000 [s]
default_grace 10
default_ttl 120 [seconds]
diag_bitmap 0x0 [bitmap]
err_ttl 0 [seconds]
esi_syntax 0 [bitmap]
fetch_chunksize 128 [kilobytes]
first_byte_timeout 60.000000 [s]
group nobody (65534)
listen_address :6081
listen_depth 8192 [connections]
log_hashstring off [bool]
log_local_address off [bool]
lru_interval 2 [seconds]
max_esi_includes 5 [includes]
max_restarts 4 [restarts]
obj_workspace 8192 [bytes]
overflow_max 100 [%]
ping_interval 3 [seconds]
pipe_timeout 60 [seconds]
prefer_ipv6 off [bool]
purge_dups off [bool]
purge_hash on [bool]
rush_exponent 3 [requests per request]
send_timeout 600 [seconds]
sess_timeout 10 [seconds]
sess_workspace 32768 [bytes]
session_linger 0 [ms]
shm_reclen 255 [bytes]
shm_workspace 8192 [bytes]
srcaddr_hash 1049 [buckets]
srcaddr_ttl 30 [seconds]
thread_pool_add_delay 20 [milliseconds]
thread_pool_add_threshold 2 [requests]
thread_pool_fail_delay 200 [milliseconds]
thread_pool_max 500 [threads]
thread_pool_min 100 [threads]
thread_pool_purge_delay 1000 [milliseconds]
thread_pool_timeout 300 [seconds]
thread_pools 2 [pools]
user nobody (65534)
vcl_trace off [bool]
0+00:01:23
ey03-s00419
Hitrate ratio: 4 4 4
Hitrate avg: 0.7154 0.7154 0.7154
2111 0.00 25.43 Client connections accepted
8315 0.00 100.18 Client requests received
5019 0.00 60.47 Cache hits
6 0.00 0.07 Cache hits for pass
805 0.00 9.70 Cache misses
2848 0.00 34.31 Backend connections success
2471 0.00 29.77 Backend connections reuses
2691 0.00 32.42 Backend connections recycles
456 . . N struct srcaddr
27 . . N active struct srcaddr
995 . . N struct sess_mem
55 . . N struct sess
584 . . N struct object
670 . . N struct objecthead
1147 . . N struct smf
1 . . N small free smf
1 . . N large free smf
6 . . N struct vbe_conn
22 . . N struct bereq
200 . . N worker threads
200 0.00 2.41 N worker threads created
57 0.00 0.69 N overflowed work requests
6 . . N backends
2046 . . N LRU moved objects
6277 0.00 75.63 Objects sent with write
2110 0.00 25.42 Total Sessions
8314 0.00 100.17 Total Requests
2491 0.00 30.01 Total pass
2847 0.00 34.30 Total fetch
2410204 0.00 29038.60 Total header bytes
38160409 0.00 459763.96 Total body bytes
605 0.00 7.29 Session Closed
2 0.00 0.02 Session Pipeline
6 0.00 0.07 Session Read Ahead
7734 0.00 93.18 Session herd
428358 12.00 5160.94 SHM records
26190 12.00 315.54 SHM writes
2 0.00 0.02 SHM MTX contention
6378 0.00 76.84 allocator requests
1145 . . outstanding allocations
12103680 . . bytes allocated
6028206080 . . bytes free
448 0.00 5.40 SMS allocator requests
208768 . . SMS bytes allocated
208768 . . SMS bytes freed
2848 0.00 34.31 Backend requests made
1 0.00 0.01 N vcl total
1 0.00 0.01 N vcl available
1 . . N total active purges
1 0.00 0.01 N new purges added
Thanks,
Tung
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