X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=man%2Fsystemd.service.xml;h=01312502601d57057f32d36b3b5c688a7f335fa8;hp=a2a1b6b5088e93dad4069a0758a1096312b0d99e;hb=fb1021a26db14b199c50e3eed77a1daa371f282e;hpb=efe6e7d33a9feb0b647c77862016284457895fa6 diff --git a/man/systemd.service.xml b/man/systemd.service.xml index a2a1b6b50..013125026 100644 --- a/man/systemd.service.xml +++ b/man/systemd.service.xml @@ -519,6 +519,20 @@ ExecStart=/bin/echo $ONE $TWO ${TWO} following: /bin/kill -HUP $MAINPID + + Note however that reloading a + daemon by sending a signal (as with + the example line above) is usually not + a good choice, because this is an + asynchronous operation and hence not + suitable to order reloads of multiple + services against each other. It is + strongly recommended to set + ExecReload= to a + command that not only triggers a + configuration reload of the daemon, + but also synchronously waits for it to + complete. @@ -689,51 +703,151 @@ ExecStart=/bin/echo $ONE $TWO ${TWO} , , , + , , , or . If set to (the default), the - service will not be restarted. If set to - , it will be - restarted only when the service process - exits cleanly. - In this context, a clean exit means - an exit code of 0, or one of the signals + service will not be restarted. If set + to , it + will be restarted only when the + service process exits cleanly. In + this context, a clean exit means an + exit code of 0, or one of the signals SIGHUP, SIGINT, - SIGTERM, - or SIGPIPE, and - additionally, exit statuses and signals - specified in SuccessExitStatus=. + SIGTERM or + SIGPIPE, and + additionally, exit statuses and + signals specified in + SuccessExitStatus=. If set to , the service will be restarted when the - process exits with a non-zero exit code, - is terminated by a signal (including on - core dump), when an operation (such as - service reload) times out, and when the - configured watchdog timeout is triggered. - If set to - , the service - will be restarted only if the service - process exits due to an uncaught - signal not specified as a clean exit - status. - If set to - , the service - will be restarted only if the watchdog - timeout for the service expires. - If set to + process exits with a non-zero exit + code, is terminated by a signal + (including on core dump, but excluding + the aforementiond four signals), when + an operation (such as service reload) + times out, and when the configured + watchdog timeout is triggered. If set + to , the + service will be restarted when the + process is terminated by a signal + (including on core dump, excluding the + aforementioned four signals), when an + operation times out, or when the + watchdog timeout is triggered. If set + to , the + service will be restarted only if the + service process exits due to an + uncaught signal not specified as a + clean exit status. If set to + , the + service will be restarted only if the + watchdog timeout for the service + expires. If set to , the service - will be restarted regardless of whether - it exited cleanly or not, got + will be restarted regardless of + whether it exited cleanly or not, got terminated abnormally by a signal, or hit a timeout. - In addition to the above settings, - the service will not be restarted if the - exit code or signal is specified in + + Exit causes and the effect of the <varname>Restart=</varname> settings on them + + + + + + + Restart settings/Exit causes + + + + + + + + + + + + Clean exit code or signal + + X + X + + + + + + + Unclean exit code + + X + + X + + + + + + Unclean signal + + X + + X + X + X + + + + Timeout + + X + + X + X + + + + + Watchdog + + X + + X + X + + X + + + +
+ + As exceptions to the setting + above the service will not be + restarted if the exit code or signal + is specified in RestartPreventExitStatus= - (see below). + (see below). Also, the services will + always be restarted if the exit code + or signal is specified in + RestartForceExitStatus= + (see below).
+ + Setting this to + is the + recommended choice for long-running + services, in order to increase + reliability by attempting automatic + recovery from errors. For services + that shall be able to terminate on + their own choice (and avoid + immediate restarting), + is an + alternative choice. + @@ -748,7 +862,7 @@ ExecStart=/bin/echo $ONE $TWO ${TWO} definitions can either be numeric exit codes or termination signal names, separated by spaces. For example: - SuccessExitStatus=1 2 8 SIGKILL + SuccessExitStatus=1 2 8 SIGKILL ensures that exit codes 1, 2, 8 and the termination signal SIGKILL are @@ -788,9 +902,8 @@ ExecStart=/bin/echo $ONE $TWO ${TWO} spaces. Defaults to the empty list, so that, by default, no exit status is excluded from the configured restart - logic. Example: - RestartPreventExitStatus=1 6 - SIGABRT, ensures that exit + logic. For example: + RestartPreventExitStatus=1 6 SIGABRT ensures that exit codes 1 and 6 and the termination signal SIGABRT will not result in automatic service @@ -804,6 +917,18 @@ ExecStart=/bin/echo $ONE $TWO ${TWO} effect. + + RestartForceExitStatus= + Takes a list of exit + status definitions that when returned + by the main service process will force + automatic service restarts, regardless + of the restart setting configured with + Restart=. The + argument format is similar to + RestartPreventExitStatus=. + + PermissionsStartOnly= Takes a boolean @@ -1030,6 +1155,17 @@ ExecStart=/bin/echo $ONE $TWO ${TWO} command. + + FailureAction= + Configure the action + to take when the service enters a failed + state. Takes the same values as + StartLimitAction= + and executes the same actions. + Defaults to . + + + Check