summaryrefslogtreecommitdiffstats
path: root/glusterfsd
diff options
context:
space:
mode:
authorRaghavendra Bhat <raghavendra@redhat.com>2013-07-25 01:14:48 +0530
committerAnand Avati <avati@redhat.com>2013-10-03 21:32:43 -0700
commitdcfe4ab475c53cec7d117fb8052b26213a4b41db (patch)
tree4a18f76152b1779077315f49fadd0cee5c24a587 /glusterfsd
parenta25bd2d7695760c9fe35fec39065c9326f2952d6 (diff)
glusterfsd, libgfapi: destroy the temporary graphs constructed for comparison
* The new and the oldgraphs which have been constructed whenever there is a volfile change (either reconfigure of the existing graph or creating a new graph) for comparison should be freed. Otherwise frequent graph changes will lead to huge memory leak Change-Id: I4faddb1aa9393b34cd2de6732e537a60f600026a BUG: 948178 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-on: http://review.gluster.org/5388 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
Diffstat (limited to 'glusterfsd')
-rw-r--r--glusterfsd/src/glusterfsd-mgmt.c183
1 files changed, 2 insertions, 181 deletions
diff --git a/glusterfsd/src/glusterfsd-mgmt.c b/glusterfsd/src/glusterfsd-mgmt.c
index e40d19b..071066b 100644
--- a/glusterfsd/src/glusterfsd-mgmt.c
+++ b/glusterfsd/src/glusterfsd-mgmt.c
@@ -1330,187 +1330,7 @@ out:
static char *oldvolfile = NULL;
static int oldvollen = 0;
-static int
-xlator_equal_rec (xlator_t *xl1, xlator_t *xl2)
-{
- xlator_list_t *trav1 = NULL;
- xlator_list_t *trav2 = NULL;
- int ret = 0;
-
- if (xl1 == NULL || xl2 == NULL) {
- gf_log ("xlator", GF_LOG_DEBUG, "invalid argument");
- return -1;
- }
-
- trav1 = xl1->children;
- trav2 = xl2->children;
-
- while (trav1 && trav2) {
- ret = xlator_equal_rec (trav1->xlator, trav2->xlator);
- if (ret) {
- gf_log ("glusterfsd-mgmt", GF_LOG_DEBUG,
- "xlators children not equal");
- goto out;
- }
-
- trav1 = trav1->next;
- trav2 = trav2->next;
- }
-
- if (trav1 || trav2) {
- ret = -1;
- goto out;
- }
-
- if (strcmp (xl1->name, xl2->name)) {
- ret = -1;
- goto out;
- }
-
- /* type could have changed even if xlator names match,
- e.g cluster/distrubte and cluster/nufa share the same
- xlator name
- */
- if (strcmp (xl1->type, xl2->type)) {
- ret = -1;
- goto out;
- }
-out :
- return ret;
-}
-
-static gf_boolean_t
-is_graph_topology_equal (glusterfs_graph_t *graph1,
- glusterfs_graph_t *graph2)
-{
- xlator_t *trav1 = NULL;
- xlator_t *trav2 = NULL;
- gf_boolean_t ret = _gf_true;
-
- trav1 = graph1->first;
- trav2 = graph2->first;
-
- ret = xlator_equal_rec (trav1, trav2);
-
- if (ret) {
- gf_log ("glusterfsd-mgmt", GF_LOG_DEBUG,
- "graphs are not equal");
- ret = _gf_false;
- goto out;
- }
-
- ret = _gf_true;
- gf_log ("glusterfsd-mgmt", GF_LOG_DEBUG,
- "graphs are equal");
-
-out:
- return ret;
-}
-
-/* Function has 3types of return value 0, -ve , 1
- * return 0 =======> reconfiguration of options has succeeded
- * return 1 =======> the graph has to be reconstructed and all the xlators should be inited
- * return -1(or -ve) =======> Some Internal Error occurred during the operation
- */
-static int
-glusterfs_volfile_reconfigure (FILE *newvolfile_fp)
-{
- glusterfs_graph_t *oldvolfile_graph = NULL;
- glusterfs_graph_t *newvolfile_graph = NULL;
- int oldvolfile_fd = -1;
- FILE *oldvolfile_fp = NULL;
- glusterfs_ctx_t *ctx = NULL;
- char template[PATH_MAX] = {0};
-
- int ret = -1;
-
- strcpy (template, "/tmp/tmp.XXXXXX");
- oldvolfile_fd = mkstemp (template);
- if (oldvolfile_fd == -1) {
- gf_log ("glusterfsd-mgmt", GF_LOG_ERROR, "Unable to create "
- "temporary file: %s (%s)", template,
- strerror (errno));
- goto out;
- }
-
- ret = unlink (template);
- if (ret < 0) {
- gf_log ("glusterfsd-mgmt", GF_LOG_WARNING, "Unable to delete "
- "file: %s", template);
- }
-
- oldvolfile_fp = fdopen (oldvolfile_fd, "w+b");
- if (!oldvolfile_fp) {
- gf_log ("glusterfsd-mgmt", GF_LOG_CRITICAL, "Failed to create "
- "temporary volfile");
- goto out;
- }
-
- if (!oldvollen) {
- ret = 1; // Has to call INIT for the whole graph
- goto out;
- }
- fwrite (oldvolfile, oldvollen, 1, oldvolfile_fp);
- fflush (oldvolfile_fp);
- if (ferror (oldvolfile_fp)) {
- goto out;
- }
-
-
- oldvolfile_graph = glusterfs_graph_construct (oldvolfile_fp);
- if (!oldvolfile_graph) {
- goto out;
- }
-
- newvolfile_graph = glusterfs_graph_construct (newvolfile_fp);
- if (!newvolfile_graph) {
- goto out;
- }
-
- if (!is_graph_topology_equal (oldvolfile_graph,
- newvolfile_graph)) {
-
- ret = 1;
- gf_log ("glusterfsd-mgmt", GF_LOG_DEBUG,
- "Graph topology not equal(should call INIT)");
- goto out;
- }
-
- gf_log ("glusterfsd-mgmt", GF_LOG_DEBUG,
- "Only options have changed in the new "
- "graph");
-
- ctx = glusterfsd_ctx;
-
- oldvolfile_graph = ctx->active;
- if (!oldvolfile_graph) {
- gf_log ("glusterfsd-mgmt", GF_LOG_ERROR,
- "glusterfs_ctx->active is NULL");
- goto out;
- }
-
- /* */
- ret = glusterfs_graph_reconfigure (oldvolfile_graph,
- newvolfile_graph);
- if (ret) {
- gf_log ("glusterfsd-mgmt", GF_LOG_DEBUG,
- "Could not reconfigure new options in old graph");
- goto out;
- }
-
- ret = 0;
-out:
- if (oldvolfile_fp) {
- fclose (oldvolfile_fp);
-
- } else if (-1 != oldvolfile_fd) {
- close (oldvolfile_fd);
-
- }
-
- return ret;
-}
int
mgmt_getspec_cbk (struct rpc_req *req, struct iovec *iov, int count,
@@ -1576,7 +1396,7 @@ mgmt_getspec_cbk (struct rpc_req *req, struct iovec *iov, int count,
* return -1(or -ve) =======> Some Internal Error occurred during the operation
*/
- ret = glusterfs_volfile_reconfigure (tmpfp);
+ ret = glusterfs_volfile_reconfigure (oldvollen, tmpfp, ctx, oldvolfile);
if (ret == 0) {
gf_log ("glusterfsd-mgmt", GF_LOG_DEBUG,
"No need to re-load volfile, reconfigure done");
@@ -1609,6 +1429,7 @@ mgmt_getspec_cbk (struct rpc_req *req, struct iovec *iov, int count,
volfilebuf = GF_REALLOC (oldvolfile, size);
else
volfilebuf = GF_CALLOC (1, size, gf_common_mt_char);
+
if (!volfilebuf) {
ret = -1;
goto out;