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core: let user define start-/stop-timeout behaviour

The usual behaviour when a timeout expires is to terminate/kill the
service. This is what user usually want in production systems. To debug
services that fail to start/stop (especially sporadic failures) it
might be necessary to trigger the watchdog machinery and write core
dumps, though. Likewise, it is usually just a waste of time to
gracefully stop a stuck service. Instead it might save time to go
directly into kill mode.

This commit adds two new options to services: TimeoutStartFailureMode=
and TimeoutStopFailureMode=. Both take the same values and tweak the
behavior of systemd when a start/stop timeout expires:

 * 'terminate': is the default behaviour as it has always been,
 * 'abort': triggers the watchdog machinery and will send SIGABRT
   (unless WatchdogSignal was changed) and
 * 'kill' will directly send SIGKILL.

To handle the stop failure mode in stop-post state too a new
final-watchdog state needs to be introduced.
This commit is contained in:
Jan Klötzke 2019-04-16 16:45:20 +02:00 committed by Lennart Poettering
parent 8b5616fa91
commit bf76080180
10 changed files with 200 additions and 42 deletions

View File

@ -560,16 +560,12 @@
<varlistentry>
<term><varname>TimeoutStartSec=</varname></term>
<listitem><para>Configures the time to wait for start-up. If a
daemon service does not signal start-up completion within the
configured time, the service will be considered failed and
will be shut down again. Takes a unit-less value in seconds,
or a time span value such as "5min 20s". Pass
<literal>infinity</literal> to disable the timeout logic. Defaults to
<varname>DefaultTimeoutStartSec=</varname> from the manager
configuration file, except when
<varname>Type=oneshot</varname> is used, in which case the
timeout is disabled by default (see
<listitem><para>Configures the time to wait for start-up. If a daemon service does not signal start-up
completion within the configured time, the service will be considered failed and will be shut down again. The
precise action depends on the <varname>TimeoutStartFailureMode=</varname> option. Takes a unit-less value in
seconds, or a time span value such as "5min 20s". Pass <literal>infinity</literal> to disable the timeout logic.
Defaults to <varname>DefaultTimeoutStartSec=</varname> from the manager configuration file, except when
<varname>Type=oneshot</varname> is used, in which case the timeout is disabled by default (see
<citerefentry><refentrytitle>systemd-system.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>).
</para>
@ -588,7 +584,8 @@
<listitem><para>This option serves two purposes. First, it configures the time to wait for each
<varname>ExecStop=</varname> command. If any of them times out, subsequent <varname>ExecStop=</varname> commands
are skipped and the service will be terminated by <constant>SIGTERM</constant>. If no <varname>ExecStop=</varname>
commands are specified, the service gets the <constant>SIGTERM</constant> immediately. Second, it configures the time
commands are specified, the service gets the <constant>SIGTERM</constant> immediately. This default behavior
can be changed by the <varname>TimeoutStopFailureMode=</varname> option. Second, it configures the time
to wait for the service itself to stop. If it doesn't terminate in the specified time, it will be forcibly terminated
by <constant>SIGKILL</constant> (see <varname>KillMode=</varname> in
<citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>).
@ -646,6 +643,28 @@
</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>TimeoutStartFailureMode=</varname></term>
<term><varname>TimeoutStopFailureMode=</varname></term>
<listitem><para>These options configure the action that is taken in case a daemon service does not signal
start-up within its configured <varname>TimeoutStartSec=</varname>, respectively if it does not stop within
<varname>TimeoutStopSec=</varname>. Takes one of <option>terminate</option>, <option>abort</option> and
<option>kill</option>. Both options default to <option>terminate</option>.</para>
<para>If <option>terminate</option> is set the service will be gracefully terminated by sending the signal
specified in <varname>KillSignal=</varname> (defaults to <constant>SIGTERM</constant>, see
<citerefentry><refentrytitle>systemd.kill</refentrytitle><manvolnum>5</manvolnum></citerefentry>). If the
service does not terminate the <varname>FinalKillSignal=</varname> is sent after
<varname>TimeoutStopSec=</varname>. If <option>abort</option> is set, <varname>WatchdogSignal=</varname> is sent
instead and <varname>TimeoutAbortSec=</varname> applies before sending <varname>FinalKillSignal=</varname>.
This setting may be used to analyze services that fail to start-up or shut-down intermittently.
By using <option>kill</option> the service is immediately terminated by sending
<varname>FinalKillSignal=</varname> without any further timeout. This setting can be used to expedite the
shutdown of failing services.
</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>RuntimeMaxSec=</varname></term>

View File

@ -185,6 +185,7 @@ static const char* const service_state_table[_SERVICE_STATE_MAX] = {
[SERVICE_STOP_SIGTERM] = "stop-sigterm",
[SERVICE_STOP_SIGKILL] = "stop-sigkill",
[SERVICE_STOP_POST] = "stop-post",
[SERVICE_FINAL_WATCHDOG] = "final-watchdog",
[SERVICE_FINAL_SIGTERM] = "final-sigterm",
[SERVICE_FINAL_SIGKILL] = "final-sigkill",
[SERVICE_FAILED] = "failed",

View File

@ -127,6 +127,7 @@ typedef enum ServiceState {
SERVICE_STOP_SIGTERM,
SERVICE_STOP_SIGKILL,
SERVICE_STOP_POST,
SERVICE_FINAL_WATCHDOG, /* In case the STOP_POST executable needs to be aborted. */
SERVICE_FINAL_SIGTERM, /* In case the STOP_POST executable hangs, we shoot that down, too */
SERVICE_FINAL_SIGKILL,
SERVICE_FAILED,

View File

@ -29,6 +29,7 @@ static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_notify_access, notify_access, N
static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_emergency_action, emergency_action, EmergencyAction);
static BUS_DEFINE_PROPERTY_GET(property_get_timeout_abort_usec, "t", Service, service_timeout_abort_usec);
static BUS_DEFINE_PROPERTY_GET(property_get_watchdog_usec, "t", Service, service_get_watchdog_usec);
static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_timeout_failure_mode, service_timeout_failure_mode, ServiceTimeoutFailureMode);
static int property_get_exit_status_set(
sd_bus *bus,
@ -101,6 +102,8 @@ const sd_bus_vtable bus_service_vtable[] = {
SD_BUS_PROPERTY("TimeoutStartUSec", "t", bus_property_get_usec, offsetof(Service, timeout_start_usec), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("TimeoutStopUSec", "t", bus_property_get_usec, offsetof(Service, timeout_stop_usec), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("TimeoutAbortUSec", "t", property_get_timeout_abort_usec, 0, 0),
SD_BUS_PROPERTY("TimeoutStartFailureMode", "s", property_get_timeout_failure_mode, offsetof(Service, timeout_start_failure_mode), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("TimeoutStopFailureMode", "s", property_get_timeout_failure_mode, offsetof(Service, timeout_stop_failure_mode), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("RuntimeMaxUSec", "t", bus_property_get_usec, offsetof(Service, runtime_max_usec), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("WatchdogUSec", "t", property_get_watchdog_usec, 0, 0),
BUS_PROPERTY_DUAL_TIMESTAMP("WatchdogTimestamp", offsetof(Service, watchdog_timestamp), 0),
@ -259,6 +262,7 @@ static BUS_DEFINE_SET_TRANSIENT_PARSE(service_type, ServiceType, service_type_fr
static BUS_DEFINE_SET_TRANSIENT_PARSE(service_restart, ServiceRestart, service_restart_from_string);
static BUS_DEFINE_SET_TRANSIENT_PARSE(oom_policy, OOMPolicy, oom_policy_from_string);
static BUS_DEFINE_SET_TRANSIENT_STRING_WITH_CHECK(bus_name, sd_bus_service_name_is_valid);
static BUS_DEFINE_SET_TRANSIENT_PARSE(timeout_failure_mode, ServiceTimeoutFailureMode, service_timeout_failure_mode_from_string);
static int bus_service_set_transient_property(
Service *s,
@ -316,6 +320,12 @@ static int bus_service_set_transient_property(
return r;
}
if (streq(name, "TimeoutStartFailureMode"))
return bus_set_transient_timeout_failure_mode(u, name, &s->timeout_start_failure_mode, message, flags, error);
if (streq(name, "TimeoutStopFailureMode"))
return bus_set_transient_timeout_failure_mode(u, name, &s->timeout_stop_failure_mode, message, flags, error);
if (streq(name, "RuntimeMaxUSec"))
return bus_set_transient_usec(u, name, &s->runtime_max_usec, message, flags, error);

View File

@ -322,6 +322,8 @@ Service.TimeoutSec, config_parse_service_timeout, 0,
Service.TimeoutStartSec, config_parse_service_timeout, 0, 0
Service.TimeoutStopSec, config_parse_sec_fix_0, 0, offsetof(Service, timeout_stop_usec)
Service.TimeoutAbortSec, config_parse_service_timeout_abort, 0, 0
Service.TimeoutStartFailureMode, config_parse_service_timeout_failure_mode, 0, offsetof(Service, timeout_start_failure_mode)
Service.TimeoutStopFailureMode, config_parse_service_timeout_failure_mode, 0, offsetof(Service, timeout_stop_failure_mode)
Service.RuntimeMaxSec, config_parse_sec, 0, offsetof(Service, runtime_max_usec)
Service.WatchdogSec, config_parse_sec, 0, offsetof(Service, watchdog_usec)
m4_dnl The following five only exist for compatibility, they moved into Unit, see above

View File

@ -123,6 +123,7 @@ DEFINE_CONFIG_PARSE_ENUM(config_parse_protect_system, protect_system, ProtectSys
DEFINE_CONFIG_PARSE_ENUM(config_parse_runtime_preserve_mode, exec_preserve_mode, ExecPreserveMode, "Failed to parse runtime directory preserve mode");
DEFINE_CONFIG_PARSE_ENUM(config_parse_service_type, service_type, ServiceType, "Failed to parse service type");
DEFINE_CONFIG_PARSE_ENUM(config_parse_service_restart, service_restart, ServiceRestart, "Failed to parse service restart specifier");
DEFINE_CONFIG_PARSE_ENUM(config_parse_service_timeout_failure_mode, service_timeout_failure_mode, ServiceTimeoutFailureMode, "Failed to parse timeout failure mode");
DEFINE_CONFIG_PARSE_ENUM(config_parse_socket_bind, socket_address_bind_ipv6_only_or_bool, SocketAddressBindIPv6Only, "Failed to parse bind IPv6 only value");
DEFINE_CONFIG_PARSE_ENUM(config_parse_oom_policy, oom_policy, OOMPolicy, "Failed to parse OOM policy");
DEFINE_CONFIG_PARSE_ENUM_WITH_DEFAULT(config_parse_ip_tos, ip_tos, int, -1, "Failed to parse IP TOS value");
@ -4941,6 +4942,7 @@ void unit_dump_config_items(FILE *f) {
{ config_parse_exec, "PATH [ARGUMENT [...]]" },
{ config_parse_service_type, "SERVICETYPE" },
{ config_parse_service_restart, "SERVICERESTART" },
{ config_parse_service_timeout_failure_mode, "TIMEOUTMODE" },
{ config_parse_kill_mode, "KILLMODE" },
{ config_parse_signal, "SIGNAL" },
{ config_parse_socket_listen, "SOCKET [...]" },

View File

@ -30,6 +30,7 @@ CONFIG_PARSER_PROTOTYPE(config_parse_exec_coredump_filter);
CONFIG_PARSER_PROTOTYPE(config_parse_exec);
CONFIG_PARSER_PROTOTYPE(config_parse_service_timeout);
CONFIG_PARSER_PROTOTYPE(config_parse_service_timeout_abort);
CONFIG_PARSER_PROTOTYPE(config_parse_service_timeout_failure_mode);
CONFIG_PARSER_PROTOTYPE(config_parse_service_type);
CONFIG_PARSER_PROTOTYPE(config_parse_service_restart);
CONFIG_PARSER_PROTOTYPE(config_parse_socket_bindtodevice);

View File

@ -56,6 +56,7 @@ static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
[SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
[SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
[SERVICE_STOP_POST] = UNIT_DEACTIVATING,
[SERVICE_FINAL_WATCHDOG] = UNIT_DEACTIVATING,
[SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
[SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
[SERVICE_FAILED] = UNIT_FAILED,
@ -79,6 +80,7 @@ static const UnitActiveState state_translation_table_idle[_SERVICE_STATE_MAX] =
[SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
[SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
[SERVICE_STOP_POST] = UNIT_DEACTIVATING,
[SERVICE_FINAL_WATCHDOG] = UNIT_DEACTIVATING,
[SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
[SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
[SERVICE_FAILED] = UNIT_FAILED,
@ -857,10 +859,14 @@ static void service_dump(Unit *u, FILE *f, const char *prefix) {
fprintf(f,
"%sRestartSec: %s\n"
"%sTimeoutStartSec: %s\n"
"%sTimeoutStopSec: %s\n",
"%sTimeoutStopSec: %s\n"
"%sTimeoutStartFailureMode: %s\n"
"%sTimeoutStopFailureMode: %s\n",
prefix, format_timespan(buf_restart, sizeof(buf_restart), s->restart_usec, USEC_PER_SEC),
prefix, format_timespan(buf_start, sizeof(buf_start), s->timeout_start_usec, USEC_PER_SEC),
prefix, format_timespan(buf_stop, sizeof(buf_stop), s->timeout_stop_usec, USEC_PER_SEC));
prefix, format_timespan(buf_stop, sizeof(buf_stop), s->timeout_stop_usec, USEC_PER_SEC),
prefix, service_timeout_failure_mode_to_string(s->timeout_start_failure_mode),
prefix, service_timeout_failure_mode_to_string(s->timeout_stop_failure_mode));
if (s->timeout_abort_set)
fprintf(f,
@ -1072,7 +1078,7 @@ static void service_set_state(Service *s, ServiceState state) {
SERVICE_RUNNING,
SERVICE_RELOAD,
SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST,
SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL,
SERVICE_FINAL_WATCHDOG, SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL,
SERVICE_AUTO_RESTART,
SERVICE_CLEANING))
s->timer_event_source = sd_event_source_unref(s->timer_event_source);
@ -1081,7 +1087,7 @@ static void service_set_state(Service *s, ServiceState state) {
SERVICE_START, SERVICE_START_POST,
SERVICE_RUNNING, SERVICE_RELOAD,
SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST,
SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) {
SERVICE_FINAL_WATCHDOG, SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) {
service_unwatch_main_pid(s);
s->main_command = NULL;
}
@ -1090,7 +1096,7 @@ static void service_set_state(Service *s, ServiceState state) {
SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
SERVICE_RELOAD,
SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST,
SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL,
SERVICE_FINAL_WATCHDOG, SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL,
SERVICE_CLEANING)) {
service_unwatch_control_pid(s);
s->control_command = NULL;
@ -1106,7 +1112,7 @@ static void service_set_state(Service *s, ServiceState state) {
SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
SERVICE_RUNNING, SERVICE_RELOAD,
SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST,
SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) &&
SERVICE_FINAL_WATCHDOG, SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) &&
!(state == SERVICE_DEAD && UNIT(s)->job))
service_close_socket_fd(s);
@ -1154,6 +1160,7 @@ static usec_t service_coldplug_timeout(Service *s) {
return usec_add(UNIT(s)->state_change_timestamp.monotonic, s->timeout_stop_usec);
case SERVICE_STOP_WATCHDOG:
case SERVICE_FINAL_WATCHDOG:
return usec_add(UNIT(s)->state_change_timestamp.monotonic, service_timeout_abort_usec(s));
case SERVICE_AUTO_RESTART:
@ -1187,7 +1194,7 @@ static int service_coldplug(Unit *u) {
SERVICE_START, SERVICE_START_POST,
SERVICE_RUNNING, SERVICE_RELOAD,
SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST,
SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))) {
SERVICE_FINAL_WATCHDOG, SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))) {
r = unit_watch_pid(UNIT(s), s->main_pid, false);
if (r < 0)
return r;
@ -1199,7 +1206,7 @@ static int service_coldplug(Unit *u) {
SERVICE_CONDITION, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
SERVICE_RELOAD,
SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST,
SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL,
SERVICE_FINAL_WATCHDOG, SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL,
SERVICE_CLEANING)) {
r = unit_watch_pid(UNIT(s), s->control_pid, false);
if (r < 0)
@ -1859,6 +1866,7 @@ static int state_to_kill_operation(Service *s, ServiceState state) {
switch (state) {
case SERVICE_STOP_WATCHDOG:
case SERVICE_FINAL_WATCHDOG:
return KILL_WATCHDOG;
case SERVICE_STOP_SIGTERM:
@ -1879,7 +1887,7 @@ static int state_to_kill_operation(Service *s, ServiceState state) {
}
static void service_enter_signal(Service *s, ServiceState state, ServiceResult f) {
int r;
int kill_operation, r;
assert(s);
@ -1893,10 +1901,11 @@ static void service_enter_signal(Service *s, ServiceState state, ServiceResult f
* died now */
(void) unit_enqueue_rewatch_pids(UNIT(s));
kill_operation = state_to_kill_operation(s, state);
r = unit_kill_context(
UNIT(s),
&s->kill_context,
state_to_kill_operation(s, state),
kill_operation,
s->main_pid,
s->control_pid,
s->main_pid_alien);
@ -1905,7 +1914,7 @@ static void service_enter_signal(Service *s, ServiceState state, ServiceResult f
if (r > 0) {
r = service_arm_timer(s, usec_add(now(CLOCK_MONOTONIC),
state == SERVICE_STOP_WATCHDOG ? service_timeout_abort_usec(s) : s->timeout_stop_usec));
kill_operation == KILL_WATCHDOG ? service_timeout_abort_usec(s) : s->timeout_stop_usec));
if (r < 0)
goto fail;
@ -1914,7 +1923,7 @@ static void service_enter_signal(Service *s, ServiceState state, ServiceResult f
service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_SUCCESS);
else if (IN_SET(state, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL))
service_enter_stop_post(s, SERVICE_SUCCESS);
else if (state == SERVICE_FINAL_SIGTERM && s->kill_context.send_sigkill)
else if (IN_SET(state, SERVICE_FINAL_WATCHDOG, SERVICE_FINAL_SIGTERM) && s->kill_context.send_sigkill)
service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS);
else
service_enter_dead(s, SERVICE_SUCCESS, true);
@ -2444,7 +2453,7 @@ static int service_start(Unit *u) {
* please! */
if (IN_SET(s->state,
SERVICE_STOP, SERVICE_STOP_WATCHDOG, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST,
SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, SERVICE_CLEANING))
SERVICE_FINAL_WATCHDOG, SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL, SERVICE_CLEANING))
return -EAGAIN;
/* Already on it! */
@ -2515,7 +2524,7 @@ static int service_stop(Unit *u) {
/* Already on it */
if (IN_SET(s->state,
SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST,
SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))
SERVICE_FINAL_WATCHDOG, SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))
return 0;
/* A restart will be scheduled or is in progress. */
@ -3321,6 +3330,7 @@ static void service_notify_cgroup_empty_event(Unit *u) {
break;
case SERVICE_STOP_POST:
case SERVICE_FINAL_WATCHDOG:
case SERVICE_FINAL_SIGTERM:
case SERVICE_FINAL_SIGKILL:
if (main_pid_good(s) <= 0 && control_pid_good(s) <= 0)
@ -3521,6 +3531,7 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
break;
case SERVICE_FINAL_WATCHDOG:
case SERVICE_FINAL_SIGTERM:
case SERVICE_FINAL_SIGKILL:
@ -3674,6 +3685,7 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
service_enter_signal(s, SERVICE_FINAL_SIGTERM, f);
break;
case SERVICE_FINAL_WATCHDOG:
case SERVICE_FINAL_SIGTERM:
case SERVICE_FINAL_SIGKILL:
if (main_pid_good(s) <= 0)
@ -3720,13 +3732,32 @@ static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *us
case SERVICE_CONDITION:
case SERVICE_START_PRE:
case SERVICE_START:
log_unit_warning(UNIT(s), "%s operation timed out. Terminating.", service_state_to_string(s->state));
service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
break;
case SERVICE_START_POST:
log_unit_warning(UNIT(s), "Start-post operation timed out. Stopping.");
service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
switch (s->timeout_start_failure_mode) {
case SERVICE_TIMEOUT_TERMINATE:
log_unit_warning(UNIT(s), "%s operation timed out. Terminating.", service_state_to_string(s->state));
service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
break;
case SERVICE_TIMEOUT_ABORT:
log_unit_warning(UNIT(s), "%s operation timed out. Aborting.", service_state_to_string(s->state));
service_enter_signal(s, SERVICE_STOP_WATCHDOG, SERVICE_FAILURE_TIMEOUT);
break;
case SERVICE_TIMEOUT_KILL:
if (s->kill_context.send_sigkill) {
log_unit_warning(UNIT(s), "%s operation timed out. Killing.", service_state_to_string(s->state));
service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
} else {
log_unit_warning(UNIT(s), "%s operation timed out. Skipping SIGKILL.", service_state_to_string(s->state));
service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
}
break;
default:
assert_not_reached("unknown timeout mode");
}
break;
case SERVICE_RUNNING:
@ -3742,17 +3773,48 @@ static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *us
break;
case SERVICE_STOP:
log_unit_warning(UNIT(s), "Stopping timed out. Terminating.");
service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
switch (s->timeout_stop_failure_mode) {
case SERVICE_TIMEOUT_TERMINATE:
log_unit_warning(UNIT(s), "Stopping timed out. Terminating.");
service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
break;
case SERVICE_TIMEOUT_ABORT:
log_unit_warning(UNIT(s), "Stopping timed out. Aborting.");
service_enter_signal(s, SERVICE_STOP_WATCHDOG, SERVICE_FAILURE_TIMEOUT);
break;
case SERVICE_TIMEOUT_KILL:
if (s->kill_context.send_sigkill) {
log_unit_warning(UNIT(s), "Stopping timed out. Killing.");
service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
} else {
log_unit_warning(UNIT(s), "Stopping timed out. Skipping SIGKILL.");
service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
}
break;
default:
assert_not_reached("unknown timeout mode");
}
break;
case SERVICE_STOP_WATCHDOG:
log_unit_warning(UNIT(s), "State 'stop-watchdog' timed out. Terminating.");
service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
if (s->kill_context.send_sigkill) {
log_unit_warning(UNIT(s), "State 'stop-watchdog' timed out. Killing.");
service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
} else {
log_unit_warning(UNIT(s), "State 'stop-watchdog' timed out. Skipping SIGKILL.");
service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
}
break;
case SERVICE_STOP_SIGTERM:
if (s->kill_context.send_sigkill) {
if (s->timeout_stop_failure_mode == SERVICE_TIMEOUT_ABORT) {
log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Aborting.");
service_enter_signal(s, SERVICE_STOP_WATCHDOG, SERVICE_FAILURE_TIMEOUT);
} else if (s->kill_context.send_sigkill) {
log_unit_warning(UNIT(s), "State 'stop-sigterm' timed out. Killing.");
service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
} else {
@ -3772,16 +3834,52 @@ static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *us
break;
case SERVICE_STOP_POST:
log_unit_warning(UNIT(s), "State 'stop-post' timed out. Terminating.");
service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
switch (s->timeout_stop_failure_mode) {
case SERVICE_TIMEOUT_TERMINATE:
log_unit_warning(UNIT(s), "State 'stop-post' timed out. Terminating.");
service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
break;
case SERVICE_TIMEOUT_ABORT:
log_unit_warning(UNIT(s), "State 'stop-post' timed out. Aborting.");
service_enter_signal(s, SERVICE_FINAL_WATCHDOG, SERVICE_FAILURE_TIMEOUT);
break;
case SERVICE_TIMEOUT_KILL:
if (s->kill_context.send_sigkill) {
log_unit_warning(UNIT(s), "State 'stop-post' timed out. Killing.");
service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
} else {
log_unit_warning(UNIT(s), "State 'stop-post' timed out. Skipping SIGKILL. Entering failed mode.");
service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
}
break;
default:
assert_not_reached("unknown timeout mode");
}
break;
case SERVICE_FINAL_WATCHDOG:
if (s->kill_context.send_sigkill) {
log_unit_warning(UNIT(s), "State 'final-watchdog' timed out. Killing.");
service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
} else {
log_unit_warning(UNIT(s), "State 'final-watchdog' timed out. Skipping SIGKILL. Entering failed mode.");
service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
}
break;
case SERVICE_FINAL_SIGTERM:
if (s->kill_context.send_sigkill) {
log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Killing.");
if (s->timeout_stop_failure_mode == SERVICE_TIMEOUT_ABORT) {
log_unit_warning(UNIT(s), "State 'final-sigterm' timed out. Aborting.");
service_enter_signal(s, SERVICE_FINAL_WATCHDOG, SERVICE_FAILURE_TIMEOUT);
} else if (s->kill_context.send_sigkill) {
log_unit_warning(UNIT(s), "State 'final-sigterm' timed out. Killing.");
service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
} else {
log_unit_warning(UNIT(s), "State 'stop-final-sigterm' timed out. Skipping SIGKILL. Entering failed mode.");
log_unit_warning(UNIT(s), "State 'final-sigterm' timed out. Skipping SIGKILL. Entering failed mode.");
service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
}
@ -4263,6 +4361,7 @@ static bool service_needs_console(Unit *u) {
SERVICE_STOP_SIGTERM,
SERVICE_STOP_SIGKILL,
SERVICE_STOP_POST,
SERVICE_FINAL_WATCHDOG,
SERVICE_FINAL_SIGTERM,
SERVICE_FINAL_SIGKILL);
}
@ -4417,6 +4516,14 @@ static const char* const service_result_table[_SERVICE_RESULT_MAX] = {
DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
static const char* const service_timeout_failure_mode_table[_SERVICE_TIMEOUT_FAILURE_MODE_MAX] = {
[SERVICE_TIMEOUT_TERMINATE] = "terminate",
[SERVICE_TIMEOUT_ABORT] = "abort",
[SERVICE_TIMEOUT_KILL] = "kill",
};
DEFINE_STRING_TABLE_LOOKUP(service_timeout_failure_mode, ServiceTimeoutFailureMode);
const UnitVTable service_vtable = {
.object_size = sizeof(Service),
.exec_context_offset = offsetof(Service, exec_context),

View File

@ -74,6 +74,14 @@ typedef enum ServiceResult {
_SERVICE_RESULT_INVALID = -1
} ServiceResult;
typedef enum ServiceTimeoutFailureMode {
SERVICE_TIMEOUT_TERMINATE,
SERVICE_TIMEOUT_ABORT,
SERVICE_TIMEOUT_KILL,
_SERVICE_TIMEOUT_FAILURE_MODE_MAX,
_SERVICE_TIMEOUT_FAILURE_MODE_INVALID = -1
} ServiceTimeoutFailureMode;
struct ServiceFDStore {
Service *service;
@ -103,6 +111,8 @@ struct Service {
usec_t timeout_abort_usec;
bool timeout_abort_set;
usec_t runtime_max_usec;
ServiceTimeoutFailureMode timeout_start_failure_mode;
ServiceTimeoutFailureMode timeout_stop_failure_mode;
dual_timestamp watchdog_timestamp;
usec_t watchdog_usec; /* the requested watchdog timeout in the unit file */
@ -228,6 +238,9 @@ NotifyState notify_state_from_string(const char *s) _pure_;
const char* service_result_to_string(ServiceResult i) _const_;
ServiceResult service_result_from_string(const char *s) _pure_;
const char* service_timeout_failure_mode_to_string(ServiceTimeoutFailureMode i) _const_;
ServiceTimeoutFailureMode service_timeout_failure_mode_from_string(const char *s) _pure_;
DEFINE_CAST(SERVICE, Service);
#define STATUS_TEXT_MAX (16U*1024U)

View File

@ -1490,7 +1490,9 @@ static int bus_append_service_property(sd_bus_message *m, const char *field, con
"NotifyAccess",
"USBFunctionDescriptors",
"USBFunctionStrings",
"OOMPolicy"))
"OOMPolicy",
"TimeoutStartFailureMode",
"TimeoutStopFailureMode"))
return bus_append_string(m, field, eq);
if (STR_IN_SET(field, "PermissionsStartOnly",