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authorJakub Hrozek <jhrozek@redhat.com>2012-04-16 12:01:37 +0200
committerStephen Gallagher <sgallagh@redhat.com>2012-04-20 10:55:14 -0400
commitb83e43eb88879c7fb3114aafcc525356ff7d4235 (patch)
treeee91f09dea503112d13d4ec67ab8f947661b4795 /src
parentcdf4599ba44a6b17818cb5e77f3a727491b7e85e (diff)
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Make the monitor SIGKILL time configurable
https://fedorahosted.org/sssd/ticket/1119
Diffstat (limited to 'src')
-rw-r--r--src/confdb/confdb.h1
-rw-r--r--src/config/SSSDConfig.py1
-rwxr-xr-xsrc/config/SSSDConfigTest.py1
-rw-r--r--src/config/etc/sssd.api.conf1
-rw-r--r--src/man/sssd.conf.5.xml16
-rw-r--r--src/monitor/monitor.c26
6 files changed, 43 insertions, 3 deletions
diff --git a/src/confdb/confdb.h b/src/confdb/confdb.h
index 83a0fea9..c31966b9 100644
--- a/src/confdb/confdb.h
+++ b/src/confdb/confdb.h
@@ -54,6 +54,7 @@
#define CONFDB_SERVICE_DEBUG_MICROSECONDS "debug_microseconds"
#define CONFDB_SERVICE_DEBUG_TO_FILES "debug_to_files"
#define CONFDB_SERVICE_TIMEOUT "timeout"
+#define CONFDB_SERVICE_FORCE_TIMEOUT "force_timeout"
#define CONFDB_SERVICE_RECON_RETRIES "reconnection_retries"
#define CONFDB_SERVICE_FD_LIMIT "fd_limit"
diff --git a/src/config/SSSDConfig.py b/src/config/SSSDConfig.py
index f4987997..20cd2a28 100644
--- a/src/config/SSSDConfig.py
+++ b/src/config/SSSDConfig.py
@@ -41,6 +41,7 @@ option_strings = {
'debug_microseconds' : _('Include microseconds in timestamps in debug logs'),
'debug_to_files' : _('Write debug messages to logfiles'),
'timeout' : _('Ping timeout before restarting service'),
+ 'force_timeout' : _('Timeout between three failed ping checks and forcibly killing the service'),
'command' : _('Command to start service'),
'reconnection_retries' : _('Number of times to attempt connection to Data Providers'),
'fd_limit' : _('The number of file descriptors that may be opened by this responder'),
diff --git a/src/config/SSSDConfigTest.py b/src/config/SSSDConfigTest.py
index 000c7dba..2d3cd858 100755
--- a/src/config/SSSDConfigTest.py
+++ b/src/config/SSSDConfigTest.py
@@ -263,6 +263,7 @@ class SSSDConfigTestSSSDService(unittest.TestCase):
'services',
'domains',
'timeout',
+ 'force_timeout',
'sbus_timeout',
're_expression',
'full_name_format',
diff --git a/src/config/etc/sssd.api.conf b/src/config/etc/sssd.api.conf
index 155b8efe..7b238ffd 100644
--- a/src/config/etc/sssd.api.conf
+++ b/src/config/etc/sssd.api.conf
@@ -16,6 +16,7 @@ fd_limit = int, None, false
services = list, str, true, nss, pam
domains = list, str, true
timeout = int, None, false
+force_timeout = int, None, false
sbus_timeout = int, None, false
re_expression = str, None, false
full_name_format = str, None, false
diff --git a/src/man/sssd.conf.5.xml b/src/man/sssd.conf.5.xml
index c164d121..efc7dfa9 100644
--- a/src/man/sssd.conf.5.xml
+++ b/src/man/sssd.conf.5.xml
@@ -206,6 +206,22 @@
</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term>force_timeout (integer)</term>
+ <listitem>
+ <para>
+ If a service is not responding to ping checks (see
+ the <quote>timeout</quote> option), it is first sent
+ the SIGTERM signal that instructs it to quit gracefully.
+ If the service does not terminate after <quote>force_timeout</quote>
+ seconds, the monitor will forcibly shut it down by
+ sending a SIGKILL signal.
+ </para>
+ <para>
+ Default: 60
+ </para>
+ </listitem>
+ </varlistentry>
</variablelist>
</para>
</refsect2>
diff --git a/src/monitor/monitor.c b/src/monitor/monitor.c
index a93b2346..cadc27fe 100644
--- a/src/monitor/monitor.c
+++ b/src/monitor/monitor.c
@@ -59,6 +59,9 @@
/* ping time cannot be less then once every few seconds or the
* monitor will get crazy hammering children with messages */
#define MONITOR_DEF_PING_TIME 10
+/* terminate the child after this interval by default if it
+ * doesn't shutdown on receiving SIGTERM */
+#define MONITOR_DEF_FORCE_TIME 60
/* Special value to leave the Kerberos Replay Cache set to use
* the libkrb5 defaults
@@ -93,6 +96,7 @@ struct mt_svc {
pid_t pid;
int ping_time;
+ int kill_time;
bool svc_started;
@@ -568,7 +572,7 @@ static int monitor_kill_service (struct mt_svc *svc)
/* Set up a timer to send SIGKILL if this process
* doesn't exit within sixty seconds
*/
- tv = tevent_timeval_current_ofs(60, 0);
+ tv = tevent_timeval_current_ofs(svc->kill_time, 0);
svc->sigkill_ev = tevent_add_timer(svc->mt_ctx->ev, svc, tv,
mt_svc_sigkill, svc);
@@ -936,7 +940,8 @@ static int get_service_config(struct mt_ctx *ctx, const char *name,
CONFDB_SERVICE_TIMEOUT,
MONITOR_DEF_PING_TIME, &svc->ping_time);
if (ret != EOK) {
- DEBUG(0,("Failed to start service '%s'\n", svc->name));
+ DEBUG(SSSDBG_CRIT_FAILURE,
+ ("Failed to get ping timeout for %s\n", svc->name));
talloc_free(svc);
return ret;
}
@@ -946,6 +951,21 @@ static int get_service_config(struct mt_ctx *ctx, const char *name,
svc->ping_time = MONITOR_DEF_PING_TIME;
}
+ ret = confdb_get_int(ctx->cdb, path,
+ CONFDB_SERVICE_FORCE_TIMEOUT,
+ MONITOR_DEF_FORCE_TIME, &svc->kill_time);
+ if (ret != EOK) {
+ DEBUG(SSSDBG_CRIT_FAILURE,
+ ("Failed to get kill timeout for %s\n", svc->name));
+ talloc_free(svc);
+ return ret;
+ }
+
+ /* 'force_timeout = 0' should be translated to the default */
+ if (svc->kill_time == 0) {
+ svc->kill_time = MONITOR_DEF_FORCE_TIME;
+ }
+
svc->last_restart = now;
*svc_cfg = svc;
@@ -2072,7 +2092,7 @@ static int monitor_service_init(struct sbus_connection *conn, void *data)
mini->ctx = ctx;
mini->conn = conn;
- /* 5 seconds should be plenty */
+ /* 10 seconds should be plenty */
tv = tevent_timeval_current_ofs(10, 0);
mini->timeout = tevent_add_timer(ctx->ev, mini, tv, init_timeout, mini);