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authorCsaba Henk <csaba@gluster.com>2011-04-18 17:25:30 +0000
committerAnand Avati <avati@gluster.com>2011-04-19 02:30:43 -0700
commitced2d41bfdf6ee3ee820fa6090e4bf3147ab0d84 (patch)
tree60b37b2ed0233cb4fbf12e5f26fa61a2e2a40c89 /xlators
parent8d034b840e957d96a3c3e1f86a3ff28aabb8c896 (diff)
glusterd / geo-rep: do all gsyncd pre-configuration in glusterd init
This is made possible by gsyncd config templating, by which session specific settings can be expressed in a generic form. Benefits: - in glusterd we use only generic (rx pattern based) config settings so we don't violate users' freedom to make settigs for their sessions - don't have to invoke gsyncd in excess to prepare a session - we can pre-configure slave side too (relying on the templates and gsyncd service auto-discovery) - much leaner, much more expressive code Signed-off-by: Csaba Henk <csaba@lowlife.hu> Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2785 (gsyncd logs on slave side go to /dev/null) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2785
Diffstat (limited to 'xlators')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-op-sm.c1
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-utils.c145
-rw-r--r--xlators/mgmt/glusterd/src/glusterd.c131
3 files changed, 140 insertions, 137 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-op-sm.c b/xlators/mgmt/glusterd/src/glusterd-op-sm.c
index c51853d9016..0bae57847b9 100644
--- a/xlators/mgmt/glusterd/src/glusterd-op-sm.c
+++ b/xlators/mgmt/glusterd/src/glusterd-op-sm.c
@@ -100,6 +100,7 @@ static char *gsync_reserved_opts[] = {
"pid-file",
"log-file",
"state-file",
+ "session-owner",
NULL
};
diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.c b/xlators/mgmt/glusterd/src/glusterd-utils.c
index 17ac245e262..c80b3ae95c7 100644
--- a/xlators/mgmt/glusterd/src/glusterd-utils.c
+++ b/xlators/mgmt/glusterd/src/glusterd-utils.c
@@ -3246,18 +3246,31 @@ glusterd_delete_all_bricks (glusterd_volinfo_t* volinfo)
}
int
+mkdir_if_missing (char *path)
+{
+ struct stat st = {0,};
+ int ret = 0;
+
+ ret = mkdir (path, 0777);
+ if (!ret || errno == EEXIST)
+ ret = stat (path, &st);
+ if (ret == -1 || !S_ISDIR (st.st_mode))
+ gf_log ("", GF_LOG_WARNING, "Failed to create the"
+ " directory %s", path);
+
+ return ret;
+}
+
+int
glusterd_start_gsync (char *master, char *slave, char *uuid_str,
char **op_errstr)
{
int32_t ret = 0;
int32_t status = 0;
- char cmd[PATH_MAX] = {0,};
- char prmfile[PATH_MAX] = {0,};
+ char buf[PATH_MAX] = {0,};
char local_uuid_str [64] = {0};
- char *tslash = NULL;
xlator_t *this = NULL;
glusterd_conf_t *priv = NULL;
- char msg[3*PATH_MAX] = {0};
int errcode = 0;
this = THIS;
@@ -3272,136 +3285,34 @@ glusterd_start_gsync (char *master, char *slave, char *uuid_str,
ret = gsync_status (master, slave, &status);
if (status == 0)
goto out;
- ret = glusterd_gsync_get_param_file (prmfile, "pid", master,
- slave, priv->workdir);
- if (ret == -1) {
- errcode = -1;
- goto out;
- }
- unlink (prmfile);
- tslash = strrchr(prmfile, '/');
- if (tslash) {
- *tslash = '\0';
- ret = mkdir (prmfile, 0777);
- if (ret && (errno != EEXIST)) {
- errcode = -1;
- gf_log ("", GF_LOG_WARNING, "Failed to create the"
- " directory %s", prmfile);
- goto out;
- }
- *tslash = '/';
- }
-
- memset (cmd, 0, sizeof (cmd));
- ret = snprintf (cmd, PATH_MAX, GSYNCD_PREFIX "/gsyncd -c %s/%s :%s %s"
- " --config-set pid-file %s", priv->workdir,
- GSYNC_CONF, master, slave, prmfile);
- if (ret <= 0) {
- ret = -1;
- errcode = -1;
- gf_log ("", GF_LOG_WARNING, "failed to construct the "
- "config set command for %s %s", master, slave);
- goto out;
- }
- ret = gf_system (cmd);
+ snprintf (buf, PATH_MAX, "%s/"GEOREP"/%s", priv->workdir, master);
+ ret = mkdir_if_missing (buf);
if (ret) {
errcode = -1;
- gf_log ("", GF_LOG_WARNING, "failed to set the pid "
- "option for %s %s", master, slave);
- goto out;
- }
-
- ret = glusterd_gsync_get_param_file (prmfile, "status", NULL, NULL, NULL);
- if (ret != -1)
- ret = snprintf (cmd, PATH_MAX, GSYNCD_PREFIX "/gsyncd -c %s/%s "
- ":%s %s --config-set state-file %s",
- priv->workdir,GSYNC_CONF, master, slave,
- prmfile);
- if (ret >= PATH_MAX)
- ret = -1;
- if (ret != -1)
- ret = gf_system (cmd) ? -1 : 0;
- if (ret == -1) {
- errcode = -1;
- gf_log ("", GF_LOG_WARNING, "failed to set status file "
- "for %s %s", master, slave);
goto out;
}
- ret = glusterd_gsync_get_param_file (prmfile, "log", master,
- slave, DEFAULT_LOG_FILE_DIRECTORY);
- if (ret == -1) {
- errcode = -1;
- goto out;
- }
- /* XXX "mkdir -p": eventually this should be made into a library routine */
- tslash = strrchr(prmfile, '/');
- if (tslash) {
- char *slash = prmfile;
- struct stat st = {0,};
-
- *tslash = '\0';
- if (*slash == '/')
- slash++;
- while (slash) {
- slash = strchr (slash, '/');
- if (slash)
- *slash = '\0';
- ret = mkdir (prmfile, 0777);
- if (ret == -1 && errno != EEXIST) {
- errcode = -1;
- gf_log ("", GF_LOG_WARNING, "Failed to create"
- " the directory %s", prmfile);
- goto out;
- }
- if (slash) {
- *slash = '/';
- slash++;
- }
- }
- ret = stat (prmfile, &st);
- if (ret == -1 || !S_ISDIR (st.st_mode)) {
- ret = -1;
- errcode = -1;
- gf_log ("", GF_LOG_WARNING, "Failed to create the"
- "directory %s", prmfile);
- goto out;
- }
- *tslash = '/';
- }
-
- ret = snprintf (cmd, PATH_MAX, GSYNCD_PREFIX "/gsyncd -c %s/%s :%s %s"
- " --config-set log-file %s", priv->workdir,
- GSYNC_CONF, master, slave, prmfile);
- if (ret >= PATH_MAX)
- ret = -1;
- if (ret != -1)
- ret = gf_system (cmd) ? -1 : 0;
- if (ret == -1) {
+ snprintf (buf, PATH_MAX, DEFAULT_LOG_FILE_DIRECTORY"/"GEOREP"/%s",
+ master);
+ ret = mkdir_if_missing (buf);
+ if (ret) {
errcode = -1;
- gf_log ("", GF_LOG_WARNING, "failed to set status file "
- "for %s %s", master, slave);
goto out;
}
- memset (cmd, 0, sizeof (cmd));
- ret = snprintf (cmd, PATH_MAX, GSYNCD_PREFIX "/gsyncd --monitor -c"
- "%s/%s :%s %s", priv->workdir, GSYNC_CONF, master,
- slave);
+ ret = snprintf (buf, PATH_MAX, GSYNCD_PREFIX "/gsyncd --monitor -c "
+ "%s/"GSYNC_CONF" :%s %s", priv->workdir, master, slave);
if (ret <= 0) {
ret = -1;
errcode = -1;
goto out;
}
- ret = gf_system (cmd);
+ ret = gf_system (buf);
if (ret == -1) {
- ret = snprintf (msg, sizeof (msg), GEOREP" start failed for %s "
- "%s", master, slave);
- if (ret <=0)
- goto out;
- *op_errstr = gf_strdup (msg);
+ gf_asprintf (op_errstr, GEOREP" start failed for %s %s",
+ master, slave);
goto out;
}
diff --git a/xlators/mgmt/glusterd/src/glusterd.c b/xlators/mgmt/glusterd/src/glusterd.c
index 4d98fafd7ee..f72f058134a 100644
--- a/xlators/mgmt/glusterd/src/glusterd.c
+++ b/xlators/mgmt/glusterd/src/glusterd.c
@@ -229,34 +229,67 @@ out:
return ret;
}
+/* defined in usterd-utils.c -- no
+ * glusterd header where it would be
+ * appropriate to put to, and too
+ * accidental routine to place in
+ * libglusterfs.
+ *
+ * (Indeed, XXX: we'd rather need a general
+ * "mkdir -p" like routine in
+ * libglusterfs)
+ */
+extern int mkdir_if_missing (char *path);
+
static int
-configure_syncaemon (xlator_t *this, const char *workdir)
+configure_syncaemon (glusterd_conf_t *conf)
{
int ret = 0;
#if SYNCDAEMON_COMPILE
- char voldir[PATH_MAX] = {0,};
+ char georepdir[PATH_MAX] = {0,};
char cmd[4096] = {0,};
+ char volid[64] = {0,};
int blen = 0;
setenv ("_GLUSTERD_CALLED_", "1", 1);
- snprintf (voldir, PATH_MAX, "%s/"GEOREP, workdir);
- ret = mkdir (voldir, 0777);
- if ((-1 == ret) && (errno != EEXIST)) {
- gf_log (this->name, GF_LOG_CRITICAL,
- "Unable to create "GEOREP" directory %s (%s)",
- voldir, strerror (errno));
+ snprintf (georepdir, PATH_MAX, "%s/"GEOREP, conf->workdir);
+ ret = mkdir_if_missing (georepdir);
+ if (-1 == ret) {
+ gf_log ("glusterd", GF_LOG_CRITICAL,
+ "Unable to create "GEOREP" directory %s",
+ georepdir);
+ return -1;
+ }
+ ret = mkdir_if_missing (DEFAULT_LOG_FILE_DIRECTORY"/"GEOREP);
+ if (-1 == ret) {
+ gf_log ("glusterd", GF_LOG_CRITICAL,
+ "Unable to create "GEOREP" log directory");
+ return -1;
+ }
+ ret = mkdir_if_missing (DEFAULT_LOG_FILE_DIRECTORY"/"GEOREP"-slaves");
+ if (-1 == ret) {
+ gf_log ("glusterd", GF_LOG_CRITICAL,
+ "Unable to create "GEOREP" slave log directory");
return -1;
}
blen = snprintf (cmd, PATH_MAX, GSYNCD_PREFIX"/gsyncd -c %s/"GSYNC_CONF
- " --config-set-rx ", workdir);
+ " --config-set-rx ", conf->workdir);
+
+ /* Calling out to gsyncd to configure it:
+ * - use system(3) for options with multi-word values as system
+ * groks quotes;
+ * - use gf_system() for options with template expanders so
+ * that they are not messed up by shell
+ */
+
+ /************
+ * master pre-configuration
+ ************/
/* remote-gsyncd */
- strcpy (cmd + blen,
- "remote-gsyncd "
- "'"GSYNCD_PREFIX"/gsyncd --gluster-command "GFS_PREFIX"/sbin/glusterfs' "
- ". .");
+ strcpy (cmd + blen, "remote-gsyncd " GSYNCD_PREFIX"/gsyncd . .");
ret = system (cmd);
if (ret)
goto out;
@@ -280,15 +313,73 @@ configure_syncaemon (xlator_t *this, const char *workdir)
sprintf (cmd + blen,
"ssh-command "
"'ssh -oPasswordAuthentication=no -oStrictHostKeyChecking=no "
- "-i %s/"GEOREP"/secret.pem' . .", workdir);
+ "-i %s/secret.pem' . .", georepdir);
+ ret = system (cmd);
+ if (ret)
+ goto out;
+
+ /* session-owner */
+ uuid_unparse (conf->uuid, volid);
+ sprintf (cmd + blen, "session-owner %s . .", volid);
+ ret = system (cmd);
+ if (ret)
+ goto out;
+
+ /* pid-file */
+ sprintf (cmd + blen, "pid-file %s/${mastervol}/${eSlave}.pid . .", georepdir);
+ ret = gf_system (cmd);
+ if (ret)
+ goto out;
+
+ /* state-file */
+ sprintf (cmd + blen, "state-file %s/${mastervol}/${eSlave}.status . .", georepdir);
+ ret = gf_system (cmd);
+ if (ret)
+ goto out;
+
+ /* log-file */
+ strcpy (cmd + blen,
+ "log-file "DEFAULT_LOG_FILE_DIRECTORY"/"GEOREP"/${mastervol}/${eSlave}.log . .");
+ ret = gf_system (cmd);
+ if (ret)
+ goto out;
+
+ /* gluster-log-file */
+ strcpy (cmd + blen, "gluster-log-file "
+ DEFAULT_LOG_FILE_DIRECTORY"/"GEOREP"/${mastervol}/${eSlave}.gluster.log . .");
+ ret = gf_system (cmd);
+ if (ret)
+ goto out;
+
+ /************
+ * slave pre-configuration
+ ************/
+
+ /* gluster-command */
+ strcpy (cmd + blen,
+ "gluster-command '"GFS_PREFIX"/sbin/glusterfs "
+ "--xlator-option *-dht.assert-no-child-down=true' .");
ret = system (cmd);
if (ret)
goto out;
+ /* log-file */
+ strcpy (cmd + blen,
+ "log-file "DEFAULT_LOG_FILE_DIRECTORY"/"GEOREP"-slaves/${session_owner}:${eSlave}.log .");
+ ret = gf_system (cmd);
+ if (ret)
+ goto out;
+
+ /* gluster-log-file */
+ strcpy (cmd + blen, "gluster-log-file "
+ DEFAULT_LOG_FILE_DIRECTORY"/"GEOREP"-slaves/${session_owner}:${eSlave}.gluster.log .");
+ ret = gf_system (cmd);
+ if (ret)
+ goto out;
+
out:
#else
- (void)this;
- (void)workdir;
+ (void)conf;
#endif
return ret ? -1 : 0;
}
@@ -403,10 +494,6 @@ init (xlator_t *this)
exit (1);
}
- ret = configure_syncaemon (this, dirname);
- if (ret)
- goto out;
-
ret = glusterd_rpcsvc_options_build (this->options);
if (ret)
goto out;
@@ -496,6 +583,10 @@ init (xlator_t *this)
if (ret < 0)
goto out;
+ ret = configure_syncaemon (conf);
+ if (ret)
+ goto out;
+
ret = glusterd_restore ();
if (ret < 0)
goto out;