Hello,
In both version 4.0 and 4.1 of Varnish and the v4 version of the Varnish-agent
I have run across the problem where the Varnish-agent will terminate itself.
This happens if I use the '-p' flag to override or supply a value for a varnish
parameter on startup.
I am running Redhat v6 using Apache 2.2.
The error in the log looks like this:
Feb 16 10:43:06 ul2378 varnishd[17403]: CLI telnet 127.0.0.1 56983
127.0.0.1 6082 Rd param.show -l
Feb 16 10:43:06 ul2378 varnishd[17403]: CLI telnet 127.0.0.1 56983
127.0.0.1 6082 Wr 200 accept_filter#012 Value is: off [bool]
(default)#012#012 Enable kernel accept-filters (if available in the
kernel).#012#012 NB: This parameter will not take any effect until the
child#012 process has been restarted.#012#012acceptor_sleep_decay#012
Value is: 0.9 (default)#012 Minimum is: 0#012 Maximum is:
1#012#012 If we run out of resources, such as file descriptors or
worker#012 threads, the acceptor will sleep between accepts.#012
This parameter (multiplicatively) reduce the sleep duration for#012 each
successful accept. (ie: 0.9 = reduce by 10%)#012#012 NB: We do not know
yet if it is a good idea to change this#012 parameter, or if the default
value is even sensible. Caution#012 is advised, and feedback is most
welcome.#012#012acceptor_sleep_incr#012 Value is: 0.000 [seconds]
(default)#012 Minimum is: 0.000#012 Maximum is: 1.000#012#012
If we run out of resources, such as file descriptors or worker#012
threads, the acceptor will sleep between accepts.#012 This parameter
control how much longer we sleep, each time we#012 fail to accept a new
connection.#012#012 NB: We do not know yet if it is a good idea to
change this#012 parameter, or if the default value is even sensible.
Caution#012 is advised, and feedback is most
welcome.#012#012acceptor_sleep_max#012 Value is: 0.050 [seconds]
(default)#012 Minimum is: 0.000#012 Maximum is: 10.000#012#012
If we run out of resources, such as file descriptors or worker#012
threads, the acceptor will sleep between accepts.#012 This parameter
limits how long it can sleep between attempts to#012 accept new
connections.#012#012 NB: We do not know yet if it is a good idea to
change this#012 parameter, or if the default value is even sensible.
Caution#012
Feb 16 10:43:06 ul2378 varnish-agent[29721]: modules/vparams.c:171:
vparams_show_json: Assertion `term' failed. Aborting.
In this case the 3 params that I was overriding were:
-p thread_pool_min=${VARNISH_MIN_THREADS} \
-p thread_pool_max=${VARNISH_MAX_THREADS} \
-p thread_pool_timeout=${VARNISH_THREAD_TIMEOUT} \
In my /etc/sysconfig/varnish file, I had:
# # The minimum number of worker threads to start
VARNISH_MIN_THREADS=50
#
# # The Maximum number of worker threads to start
VARNISH_MAX_THREADS=1000
#
# # Idle timeout for worker threads
VARNISH_THREAD_TIMEOUT=120
...
# # DAEMON_OPTS is used by the init script. If you add or remove
options, make
# # sure you update this section, too.
DAEMON_OPTS="-a ${VARNISH_LISTEN_ADDRESS}:${VARNISH_LISTEN_PORT} \
-f ${VARNISH_VCL_CONF} \
-T
${VARNISH_ADMIN_LISTEN_ADDRESS}:${VARNISH_ADMIN_LISTEN_PORT} \
-t ${VARNISH_TTL} \
-p thread_pool_min=${VARNISH_MIN_THREADS} \
-p thread_pool_max=${VARNISH_MAX_THREADS} \
-p thread_pool_timeout=${VARNISH_THREAD_TIMEOUT} \
-n "varnish_pcom" \
-S ${VARNISH_SECRET_FILE} \
-s ${VARNISH_STORAGE}"
If I remove the 3 '-p' lines, everything works just fine.
I thought I would share this information.
Thanks!
A J Drew
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