From 409dbe76d743448629167f4412f290bba1aae11e Mon Sep 17 00:00:00 2001
From: Lukas Nykryn <lnykryn@redhat.com>
Date: Fri, 8 Nov 2013 16:01:22 +0100
Subject: [PATCH] manager: configurable StartLimit default values
https://bugzilla.redhat.com/show_bug.cgi?id=821723
---
man/systemd-system.conf.xml | 13 +++++++++++++
man/systemd.service.xml | 9 ++++++---
src/core/main.c | 6 ++++++
src/core/manager.h | 3 +++
src/core/service.c | 4 +++-
src/core/system.conf | 2 ++
src/core/user.conf | 2 ++
src/shared/def.h | 3 +++
8 files changed, 38 insertions(+), 4 deletions(-)
diff --git a/man/systemd-system.conf.xml b/man/systemd-system.conf.xml
index c1f2648..9a1a99f 100644
--- a/man/systemd-system.conf.xml
+++ b/man/systemd-system.conf.xml
@@ -115,6 +115,19 @@
<varname>TimeoutSec=</varname> value.
</para></listitem>
</varlistentry>
+ <varlistentry>
+ <term><varname>DefaultStartLimitInterval=</varname></term>
+ <term><varname>DefaultStartLimitBurst=</varname></term>
+
+ <listitem><para>Configure the default start rate
+ limiting, as configured per-service by
+ <varname>StartLimitInterval=</varname> and
+ <varname>StartLimitBurst=</varname>. See
+ <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ for details on the per-service
+ settings).
+ </para></listitem>
+ </varlistentry>
<varlistentry>
<term><varname>CPUAffinity=</varname></term>
diff --git a/man/systemd.service.xml b/man/systemd.service.xml
index df04048..3f31c11 100644
--- a/man/systemd.service.xml
+++ b/man/systemd.service.xml
@@ -863,12 +863,15 @@
these two options, this rate limiting
may be modified. Use
<varname>StartLimitInterval=</varname>
- to configure the checking interval
- (defaults to 10s, set to 0 to disable
+ 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 starts per interval
- are allowed (defaults to 5). These
+ are allowed (defaults to
+ <varname>DefaultStartLimitBurst=</varname> in
+ manager configuration file). These
configuration options are particularly
useful in conjunction with
<varname>Restart=</varname>, however
diff --git a/src/core/main.c b/src/core/main.c
index 937994c..00fd394 100644
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -93,6 +93,8 @@ static ExecOutput arg_default_std_error = EXEC_OUTPUT_INHERIT;
static usec_t arg_default_restart_usec = DEFAULT_RESTART_USEC;
static usec_t arg_default_timeout_start_usec = DEFAULT_TIMEOUT_USEC;
static usec_t arg_default_timeout_stop_usec = DEFAULT_TIMEOUT_USEC;
+static usec_t arg_default_start_limit_interval = DEFAULT_START_LIMIT_INTERVAL;
+static unsigned arg_default_start_limit_burst = DEFAULT_START_LIMIT_BURST;
static usec_t arg_runtime_watchdog = 0;
static usec_t arg_shutdown_watchdog = 10 * USEC_PER_MINUTE;
static char **arg_default_environment = NULL;
@@ -642,6 +644,8 @@ static int parse_config_file(void) {
{ "Manager", "DefaultTimeoutStartSec", config_parse_sec, 0, &arg_default_timeout_start_usec },
{ "Manager", "DefaultTimeoutStopSec", config_parse_sec, 0, &arg_default_timeout_stop_usec },
{ "Manager", "DefaultRestartSec", config_parse_sec, 0, &arg_default_restart_usec },
+ { "Manager", "DefaultStartLimitInterval", config_parse_sec, 0, &arg_default_start_limit_interval },
+ { "Manager", "DefaultStartLimitBurst", config_parse_unsigned, 0, &arg_default_start_limit_burst },
{ "Manager", "JoinControllers", config_parse_join_controllers, 0, &arg_join_controllers },
{ "Manager", "RuntimeWatchdogSec", config_parse_sec, 0, &arg_runtime_watchdog },
{ "Manager", "ShutdownWatchdogSec", config_parse_sec, 0, &arg_shutdown_watchdog },
@@ -1551,6 +1555,8 @@ int main(int argc, char *argv[]) {
m->default_restart_usec = arg_default_restart_usec;
m->default_timeout_start_usec = arg_default_timeout_start_usec;
m->default_timeout_stop_usec = arg_default_timeout_stop_usec;
+ m->default_start_limit_interval = arg_default_start_limit_interval;
+ m->default_start_limit_burst = arg_default_start_limit_burst;
m->runtime_watchdog = arg_runtime_watchdog;
m->shutdown_watchdog = arg_shutdown_watchdog;
m->userspace_timestamp = userspace_timestamp;
diff --git a/src/core/manager.h b/src/core/manager.h
index e74c609..ee42c5e 100644
--- a/src/core/manager.h
+++ b/src/core/manager.h
@@ -233,6 +233,9 @@ struct Manager {
usec_t default_restart_usec, default_timeout_start_usec,
default_timeout_stop_usec;
+ usec_t default_start_limit_interval;
+ unsigned default_start_limit_burst;
+
struct rlimit *rlimit[RLIMIT_NLIMITS];
/* non-zero if we are reloading or reexecuting, */
diff --git a/src/core/service.c b/src/core/service.c
index e81aa1f..5662180 100644
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -143,7 +143,9 @@ static void service_init(Unit *u) {
kill_context_init(&s->kill_context);
cgroup_context_init(&s->cgroup_context);
- RATELIMIT_INIT(s->start_limit, 10*USEC_PER_SEC, 5);
+ RATELIMIT_INIT(s->start_limit,
+ u->manager->default_start_limit_interval,
+ u->manager->default_start_limit_burst);
s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
}
diff --git a/src/core/system.conf b/src/core/system.conf
index 3c6cc03..38bbca5 100644
--- a/src/core/system.conf
+++ b/src/core/system.conf
@@ -27,6 +27,8 @@
#DefaultTimeoutStartSec=90s
#DefaultTimeoutStopSec=90s
#DefaultRestartSec=100ms
+#DefaultStartLimitInterval=10s
+#DefaultStartLimitBurst=5
#DefaultEnvironment=
#DefaultLimitCPU=
#DefaultLimitFSIZE=
diff --git a/src/core/user.conf b/src/core/user.conf
index b030701..923ca66 100644
--- a/src/core/user.conf
+++ b/src/core/user.conf
@@ -17,3 +17,5 @@
#DefaultTimeoutStartSec=90s
#DefaultTimeoutStopSec=90s
#DefaultRestartSec=100ms
+#DefaultStartLimitInterval=10s
+#DefaultStartLimitBurst=5
diff --git a/src/shared/def.h b/src/shared/def.h
index edd0bcf..e4ef735 100644
--- a/src/shared/def.h
+++ b/src/shared/def.h
@@ -27,6 +27,9 @@
#define DEFAULT_RESTART_USEC (100*USEC_PER_MSEC)
#define DEFAULT_CONFIRM_USEC (30*USEC_PER_SEC)
+#define DEFAULT_START_LIMIT_INTERVAL (10*USEC_PER_SEC)
+#define DEFAULT_START_LIMIT_BURST 5
+
#define DEFAULT_EXIT_USEC (5*USEC_PER_MINUTE)
#define SYSTEMD_CGROUP_CONTROLLER "name=systemd"