diff options
Diffstat (limited to 'man')
| -rw-r--r-- | man/journald.conf.xml | 6 | ||||
| -rw-r--r-- | man/systemd-system.conf.xml | 6 | ||||
| -rw-r--r-- | man/systemd.exec.xml | 38 | ||||
| -rw-r--r-- | man/systemd.socket.xml | 16 | ||||
| -rw-r--r-- | man/systemd.timer.xml | 6 | ||||
| -rw-r--r-- | man/systemd.unit.xml | 13 |
6 files changed, 52 insertions, 33 deletions
diff --git a/man/journald.conf.xml b/man/journald.conf.xml index a9690e8138..3964cd6bc5 100644 --- a/man/journald.conf.xml +++ b/man/journald.conf.xml @@ -148,12 +148,12 @@ </varlistentry> <varlistentry> - <term><varname>RateLimitInterval=</varname></term> + <term><varname>RateLimitIntervalSec=</varname></term> <term><varname>RateLimitBurst=</varname></term> <listitem><para>Configures the rate limiting that is applied to all messages generated on the system. If, in the time - interval defined by <varname>RateLimitInterval=</varname>, + interval defined by <varname>RateLimitIntervalSec=</varname>, more messages than specified in <varname>RateLimitBurst=</varname> are logged by a service, all further messages within the interval are dropped until the @@ -162,7 +162,7 @@ per-service, so that two services which log do not interfere with each other's limits. Defaults to 1000 messages in 30s. The time specification for - <varname>RateLimitInterval=</varname> may be specified in the + <varname>RateLimitIntervalSec=</varname> may be specified in the following units: <literal>s</literal>, <literal>min</literal>, <literal>h</literal>, <literal>ms</literal>, <literal>us</literal>. To turn off any kind of rate limiting, diff --git a/man/systemd-system.conf.xml b/man/systemd-system.conf.xml index edc6df914a..8833e73c72 100644 --- a/man/systemd-system.conf.xml +++ b/man/systemd-system.conf.xml @@ -271,16 +271,16 @@ </varlistentry> <varlistentry> - <term><varname>DefaultStartLimitInterval=</varname></term> + <term><varname>DefaultStartLimitIntervalSec=</varname></term> <term><varname>DefaultStartLimitBurst=</varname></term> <listitem><para>Configure the default unit start rate limiting, as configured per-service by - <varname>StartLimitInterval=</varname> and + <varname>StartLimitIntervalSec=</varname> and <varname>StartLimitBurst=</varname>. See <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry> for details on the per-service settings. - <varname>DefaultStartLimitInterval=</varname> defaults to + <varname>DefaultStartLimitIntervalSec=</varname> defaults to 10s. <varname>DefaultStartLimitBurst=</varname> defaults to 5.</para></listitem> </varlistentry> diff --git a/man/systemd.exec.xml b/man/systemd.exec.xml index 2d0fb63f1d..2a93760428 100644 --- a/man/systemd.exec.xml +++ b/man/systemd.exec.xml @@ -629,27 +629,23 @@ <term><varname>LimitNICE=</varname></term> <term><varname>LimitRTPRIO=</varname></term> <term><varname>LimitRTTIME=</varname></term> - <listitem><para>These settings set both soft and hard limits - of various resources for executed processes. See - <citerefentry><refentrytitle>setrlimit</refentrytitle><manvolnum>2</manvolnum></citerefentry> - for details. The resource limit is possible to specify in two formats, - <option>value</option> to set soft and hard limits to the same value, - or <option>soft:hard</option> to set both limits individually (e.g. LimitAS=4G:16G). - Use the string <varname>infinity</varname> to - configure no limit on a specific resource. The multiplicative - suffixes K (=1024), M (=1024*1024) and so on for G, T, P and E - may be used for resource limits measured in bytes - (e.g. LimitAS=16G). For the limits referring to time values, - the usual time units ms, s, min, h and so on may be used (see - <citerefentry><refentrytitle>systemd.time</refentrytitle><manvolnum>7</manvolnum></citerefentry> - for details). Note that if no time unit is specified for - <varname>LimitCPU=</varname> the default unit of seconds is - implied, while for <varname>LimitRTTIME=</varname> the default - unit of microseconds is implied. Also, note that the effective - granularity of the limits might influence their - enforcement. For example, time limits specified for - <varname>LimitCPU=</varname> will be rounded up implicitly to - multiples of 1s.</para> + <listitem><para>Set soft and hard limits on various resources for executed processes. See + <citerefentry><refentrytitle>setrlimit</refentrytitle><manvolnum>2</manvolnum></citerefentry> for details on + the resource limit concept. Resource limits may be specified in two formats: either as single value to set a + specific soft and hard limit to the same value, or as colon-separated pair <option>soft:hard</option> to set + both limits individually (e.g. <literal>LimitAS=4G:16G</literal>). Use the string <varname>infinity</varname> + to configure no limit on a specific resource. The multiplicative suffixes K, M, G, T, P and E (to the base + 1024) may be used for resource limits measured in bytes (e.g. LimitAS=16G). For the limits referring to time + values, the usual time units ms, s, min, h and so on may be used (see + <citerefentry><refentrytitle>systemd.time</refentrytitle><manvolnum>7</manvolnum></citerefentry> for + details). Note that if no time unit is specified for <varname>LimitCPU=</varname> the default unit of seconds + is implied, while for <varname>LimitRTTIME=</varname> the default unit of microseconds is implied. Also, note + that the effective granularity of the limits might influence their enforcement. For example, time limits + specified for <varname>LimitCPU=</varname> will be rounded up implicitly to multiples of 1s. For + <varname>LimitNICE=</varname> the value may be specified in two syntaxes: if prefixed with <literal>+</literal> + or <literal>-</literal>, the value is understood as regular Linux nice value in the range -20..19. If not + prefixed like this the value is understood as raw resource limit parameter in the range 0..40 (with 0 being + equivalent to 1).</para> <para>Note that most process resource limits configured with these options are per-process, and processes may fork in order diff --git a/man/systemd.socket.xml b/man/systemd.socket.xml index 2d6339680b..dc3fee5dfb 100644 --- a/man/systemd.socket.xml +++ b/man/systemd.socket.xml @@ -807,6 +807,22 @@ suffix.</para></listitem> </varlistentry> + <varlistentry> + <term><varname>TriggerLimitIntervalSec=</varname></term> + <term><varname>TriggerLimitIntervalBurst=</varname></term> + + <listitem><para>Configures a limit on how often this socket unit my be activated within a specific time + interval. The <varname>TriggerLimitIntervalSec=</varname> may be used to configure the length of the time + interval in the usual time units <literal>us</literal>, <literal>ms</literal>, <literal>s</literal>, + <literal>min</literal>, <literal>h</literal>, … and defaults to 5s (See + <citerefentry><refentrytitle>systemd.time</refentrytitle><manvolnum>7</manvolnum></citerefentry> for details on + the various time units available). The <varname>TriggerLimitBurst=</varname> setting takes an integer value and + specifies the numer of permitted activations per time interval, and defaults to 2500 (thus by default + permitting 2500 activations per 5s). Set either to 0 to disable any form of trigger rate limiting. If the limit + is hit, the socket unit is placed into a failure mode, and will not be connectible anymore until + restarted. Note that this limit is enforced before the service activation is enqueued.</para></listitem> + </varlistentry> + </variablelist> <para>Check diff --git a/man/systemd.timer.xml b/man/systemd.timer.xml index eb0afee141..0d0cccf152 100644 --- a/man/systemd.timer.xml +++ b/man/systemd.timer.xml @@ -73,6 +73,12 @@ <filename>foo.timer</filename> activates a matching service <filename>foo.service</filename>. The unit to activate may be controlled by <varname>Unit=</varname> (see below).</para> + + <para>Note that in case the unit to activate is already active at the time the timer elapses it is not restarted, + but simply left running. There is no concept of spawning new service instances in this case. Due to this, services + with <varname>RemainAfterExit=</varname> set (which stay around continously even after the service's main process + exited) are usually not suitable for activation via repetitive timers, as they will only be activated once, and + then stay around forever.</para> </refsect1> <refsect1> diff --git a/man/systemd.unit.xml b/man/systemd.unit.xml index 69f56e3f0a..abd47bd237 100644 --- a/man/systemd.unit.xml +++ b/man/systemd.unit.xml @@ -751,14 +751,14 @@ </varlistentry> <varlistentry> - <term><varname>StartLimitInterval=</varname></term> + <term><varname>StartLimitIntervalSec=</varname></term> <term><varname>StartLimitBurst=</varname></term> <listitem><para>Configure unit start rate limiting. By default, units which are started more than 5 times within 10 seconds are not permitted to start any more times until the 10 second interval ends. With these two - options, this rate limiting may be modified. Use <varname>StartLimitInterval=</varname> to configure the - checking interval (defaults to <varname>DefaultStartLimitInterval=</varname> in manager configuration file, set - to 0 to disable any kind of rate limiting). Use <varname>StartLimitBurst=</varname> to configure how many + options, this rate limiting may be modified. Use <varname>StartLimitIntervalSec=</varname> to configure the + checking interval (defaults to <varname>DefaultStartLimitIntervalSec=</varname> in manager configuration file, + set to 0 to disable any kind of rate limiting). Use <varname>StartLimitBurst=</varname> to configure how many starts per interval are allowed (defaults to <varname>DefaultStartLimitBurst=</varname> in manager configuration file). These configuration options are particularly useful in conjunction with the service setting <varname>Restart=</varname> (see @@ -769,14 +769,15 @@ manually at a later point, from which point on, the restart logic is again activated. Note that <command>systemctl reset-failed</command> will cause the restart rate counter for a service to be flushed, which is useful if the administrator wants to manually start a unit and the start limit interferes with - that.</para></listitem> + that. Note that this rate-limiting is enforced after any unit condition checks are executed, and hence unit + activations with failing conditions are not counted by this rate limiting.</para></listitem> </varlistentry> <varlistentry> <term><varname>StartLimitAction=</varname></term> <listitem><para>Configure the action to take if the rate limit configured with - <varname>StartLimitInterval=</varname> and <varname>StartLimitBurst=</varname> is hit. Takes one of + <varname>StartLimitIntervalSec=</varname> and <varname>StartLimitBurst=</varname> is hit. Takes one of <option>none</option>, <option>reboot</option>, <option>reboot-force</option>, <option>reboot-immediate</option>, <option>poweroff</option>, <option>poweroff-force</option> or <option>poweroff-immediate</option>. If <option>none</option> is set, hitting the rate limit will trigger no |