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authorAmar Tumballi <amar@gluster.com>2010-08-12 01:54:38 +0000
committerAnand V. Avati <avati@dev.gluster.com>2010-08-12 00:45:48 -0700
commit78615ceea81479b38af43697766bcc04421a256d (patch)
treef5c95b96121abcd4fa0a8f6ce2f6c5e9d2df8366 /xlators/mount/fuse
parent553aa029de1817ae182cc86c1d00f8eb8ff52b50 (diff)
logging enhancements
* per translator loglevel introduced, if set, it will override process wide log level. * with extended attribute 'trusted.glusterfs.<xlator-name>.set-log-level' with the value being '<LOGLEVEL>', one can change log level of particular translator. * with extended attribute 'trusted.glusterfs.syslog' with the value '<BOOLEAN>', one can enable disable syslog for gluster Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 601 (Enable changing 'log-level' of GlusterFS process at runtime) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=601
Diffstat (limited to 'xlators/mount/fuse')
-rw-r--r--xlators/mount/fuse/src/fuse-bridge.c14
-rw-r--r--xlators/mount/fuse/src/fuse-bridge.h2
-rw-r--r--xlators/mount/fuse/src/fuse-helpers.c88
3 files changed, 103 insertions, 1 deletions
diff --git a/xlators/mount/fuse/src/fuse-bridge.c b/xlators/mount/fuse/src/fuse-bridge.c
index ea5b5ae38ad..ac8295b96de 100644
--- a/xlators/mount/fuse/src/fuse-bridge.c
+++ b/xlators/mount/fuse/src/fuse-bridge.c
@@ -2290,6 +2290,15 @@ fuse_setxattr (xlator_t *this, fuse_in_header_t *finh, void *msg)
}
#endif
+ /* Check if the command is for changing the log
+ level of process or specific xlator */
+ ret = is_gf_log_command (this, name, value);
+ if (ret >= 0) {
+ send_fuse_err (this, finh, ret);
+ GF_FREE (finh);
+ return;
+ }
+
GET_STATE (this, finh, state);
state->size = fsi->size;
ret = fuse_loc_fill (&state->loc, state, finh->nodeid, 0, NULL);
@@ -2311,6 +2320,7 @@ fuse_setxattr (xlator_t *this, fuse_in_header_t *finh, void *msg)
"%"PRIu64": SETXATTR dict allocation failed",
finh->unique);
+ send_fuse_err (this, finh, ENOMEM);
free_fuse_state (state);
return;
}
@@ -2749,7 +2759,6 @@ fuse_setlk (xlator_t *this, fuse_in_header_t *finh, void *msg)
return;
}
-
static void
fuse_init (xlator_t *this, fuse_in_header_t *finh, void *msg)
{
@@ -3001,6 +3010,9 @@ fuse_thread_proc (void *data)
priv->msg0_len_p = &iov_in[0].iov_len;
for (;;) {
+ /* THIS has to be reset here */
+ THIS = this;
+
if (priv->init_recvd)
fuse_graph_sync (this);
diff --git a/xlators/mount/fuse/src/fuse-bridge.h b/xlators/mount/fuse/src/fuse-bridge.h
index 8165053e06f..afefd815a14 100644
--- a/xlators/mount/fuse/src/fuse-bridge.h
+++ b/xlators/mount/fuse/src/fuse-bridge.h
@@ -27,6 +27,7 @@
#include <dirent.h>
#include <sys/mount.h>
#include <sys/time.h>
+#include <fnmatch.h>
#ifndef _CONFIG_H
#define _CONFIG_H
@@ -273,5 +274,6 @@ xlator_t *fuse_state_subvol (fuse_state_t *state);
xlator_t *fuse_active_subvol (xlator_t *fuse);
inode_t *fuse_ino_to_inode (uint64_t ino, xlator_t *fuse);
int fuse_resolve_and_resume (fuse_state_t *state, fuse_resume_fn_t fn);
+int is_gf_log_command (xlator_t *this, const char *name, char *value);
#endif /* _GF_FUSE_BRIDGE_H_ */
diff --git a/xlators/mount/fuse/src/fuse-helpers.c b/xlators/mount/fuse/src/fuse-helpers.c
index d478d014db0..9a6b13514aa 100644
--- a/xlators/mount/fuse/src/fuse-helpers.c
+++ b/xlators/mount/fuse/src/fuse-helpers.c
@@ -298,3 +298,91 @@ gf_fuse_stat2attr (struct iatt *st, struct fuse_attr *fa)
fa->flags = 0;
#endif
}
+
+
+int
+is_gf_log_command (xlator_t *this, const char *name, char *value)
+{
+ fuse_private_t *priv = NULL;
+ xlator_t *trav = NULL;
+ char key[1024] = {0,};
+ int ret = -1;
+ int log_level = -1;
+ gf_boolean_t syslog_flag = 0;
+
+ priv = this->private;
+
+ if (!strcmp ("trusted.glusterfs.syslog", name)) {
+ ret = gf_string2boolean (value, &syslog_flag);
+ if (ret) {
+ ret = EOPNOTSUPP;
+ goto out;
+ }
+ if (syslog_flag)
+ gf_log_enable_syslog ();
+ else
+ gf_log_disable_syslog ();
+
+ goto out;
+ }
+
+ if (fnmatch ("trusted.glusterfs*set-log-level", name, FNM_NOESCAPE))
+ goto out;
+
+ if (!strcasecmp (value, "CRITICAL")) {
+ log_level = GF_LOG_CRITICAL;
+ } else if (!strcasecmp (value, "ERROR")) {
+ log_level = GF_LOG_ERROR;
+ } else if (!strcasecmp (value, "WARNING")) {
+ log_level = GF_LOG_WARNING;
+ } else if (!strcasecmp (value, "INFO")) {
+ log_level = GF_LOG_INFO;
+ } else if (!strcasecmp (value, "DEBUG")) {
+ log_level = GF_LOG_DEBUG;
+ } else if (!strcasecmp (value, "TRACE")) {
+ log_level = GF_LOG_TRACE;
+ } else if (!strcasecmp (value, "NONE")) {
+ log_level = GF_LOG_NONE;
+ }
+
+ if (log_level == -1) {
+ ret = EOPNOTSUPP;
+ goto out;
+ }
+
+ /* Some crude way to change the log-level of process */
+ if (!strcmp (name, "trusted.glusterfs.set-log-level")) {
+ /* */
+ gf_log ("glusterfs", gf_log_get_loglevel(),
+ "setting log level to %d (old-value=%d)",
+ log_level, gf_log_get_loglevel());
+ gf_log_set_loglevel (log_level);
+ ret = 0;
+ goto out;
+ }
+ if (!strcmp (name, "trusted.glusterfs.fuse.set-log-level")) {
+ /* */
+ gf_log (this->name, gf_log_get_xl_loglevel (this),
+ "setting log level to %d (old-value=%d)",
+ log_level, gf_log_get_xl_loglevel (this));
+ gf_log_set_xl_loglevel (this, log_level);
+ ret = 0;
+ goto out;
+ }
+
+ trav = priv->active_subvol;
+ while (trav) {
+ snprintf (key, 1024, "trusted.glusterfs.%s.set-log-level",
+ trav->name);
+ if (fnmatch (name, key, FNM_NOESCAPE) == 0) {
+ gf_log (trav->name, gf_log_get_xl_loglevel (trav),
+ "setting log level to %d (old-value=%d)",
+ log_level, gf_log_get_xl_loglevel (trav));
+ gf_log_set_xl_loglevel (trav, log_level);
+ ret = 0;
+ }
+ trav = trav->next;
+ }
+out:
+ return ret;
+}