From a75a419d39cd2e2907bcc6eed5b9a4a30a8a3f4d Mon Sep 17 00:00:00 2001 From: Sanju Rakonde Date: Mon, 16 Jul 2018 15:59:36 +0530 Subject: glusterd: memory leak in get-state Problem: gluster get-state command is leaking the memory when geo-replication session is configured. Cause: In glusterd_print_gsync_status(), we are trying to get reference to the keys of gsync_dict. The references to keys of gsync_dict are stored status_vols[i]. status_vols[i] are allocated with a memory of size of gf_gsync_status_t. Solution: Need not to use a array of pointers(status_vals), using a pointer to hold the reference to a key of gsync_dict is sufficient. Followed the below steps for testing: 1. Configured geo-rep session 2. Ran gluster get-state command for 1000 times. Without this patch, glusterd's memory was increasing significantly (around 22000KB per 1000 times), with this patch it reduced (1500KB per 1000 times) fixes: bz#1601423 Change-Id: I361f5525d71f821bb345419ccfdc20ca288ca292 Signed-off-by: Sanju Rakonde --- xlators/mgmt/glusterd/src/glusterd-handler.c | 53 ++++++++++------------------ 1 file changed, 19 insertions(+), 34 deletions(-) (limited to 'xlators/mgmt/glusterd/src/glusterd-handler.c') diff --git a/xlators/mgmt/glusterd/src/glusterd-handler.c b/xlators/mgmt/glusterd/src/glusterd-handler.c index b59d3819d95..8fdf9a3819a 100644 --- a/xlators/mgmt/glusterd/src/glusterd-handler.c +++ b/xlators/mgmt/glusterd/src/glusterd-handler.c @@ -5028,7 +5028,7 @@ glusterd_print_gsync_status (FILE *fp, dict_t *gsync_dict) int ret = -1; int gsync_count = 0; int i = 0; - gf_gsync_status_t **status_vals = NULL; + gf_gsync_status_t *status_vals = NULL; char status_val_name[PATH_MAX] = {0,}; GF_VALIDATE_OR_GOTO (THIS->name, fp, out); @@ -5043,62 +5043,47 @@ glusterd_print_gsync_status (FILE *fp, dict_t *gsync_dict) goto out; } - status_vals = GF_CALLOC (gsync_count, sizeof (gf_gsync_status_t *), - gf_common_mt_char); - if (!status_vals) { - ret = -1; - return ret; - } - for (i = 0; i < gsync_count; i++) { - status_vals[i] = GF_CALLOC (1, sizeof (gf_gsync_status_t), - gf_common_mt_char); - if (!status_vals[i]) { - ret = -1; - goto out; - } - } - for (i = 0; i < gsync_count; i++) { snprintf (status_val_name, sizeof(status_val_name), "status_value%d", i); - ret = dict_get_bin (gsync_dict, status_val_name, (void **)&(status_vals[i])); + ret = dict_get_bin (gsync_dict, status_val_name, (void **)&(status_vals)); if (ret) goto out; fprintf (fp, "Volume%d.pair%d.session_slave: %s\n", volcount, i+1, - get_struct_variable(21, status_vals[i])); + get_struct_variable(21, status_vals)); fprintf (fp, "Volume%d.pair%d.master_node: %s\n", volcount, i+1, - get_struct_variable(0, status_vals[i])); + get_struct_variable(0, status_vals)); fprintf (fp, "Volume%d.pair%d.master_volume: %s\n", volcount, i+1, - get_struct_variable(1, status_vals[i])); + get_struct_variable(1, status_vals)); fprintf (fp, "Volume%d.pair%d.master_brick: %s\n", volcount, i+1, - get_struct_variable(2, status_vals[i])); + get_struct_variable(2, status_vals)); fprintf (fp, "Volume%d.pair%d.slave_user: %s\n", volcount, i+1, - get_struct_variable(3, status_vals[i])); + get_struct_variable(3, status_vals)); fprintf (fp, "Volume%d.pair%d.slave: %s\n", volcount, i+1, - get_struct_variable(4, status_vals[i])); + get_struct_variable(4, status_vals)); fprintf (fp, "Volume%d.pair%d.slave_node: %s\n", volcount, i+1, - get_struct_variable(5, status_vals[i])); + get_struct_variable(5, status_vals)); fprintf (fp, "Volume%d.pair%d.status: %s\n", volcount, i+1, - get_struct_variable(6, status_vals[i])); + get_struct_variable(6, status_vals)); fprintf (fp, "Volume%d.pair%d.crawl_status: %s\n", volcount, i+1, - get_struct_variable(7, status_vals[i])); + get_struct_variable(7, status_vals)); fprintf (fp, "Volume%d.pair%d.last_synced: %s\n", volcount, i+1, - get_struct_variable(8, status_vals[i])); + get_struct_variable(8, status_vals)); fprintf (fp, "Volume%d.pair%d.entry: %s\n", volcount, i+1, - get_struct_variable(9, status_vals[i])); + get_struct_variable(9, status_vals)); fprintf (fp, "Volume%d.pair%d.data: %s\n", volcount, i+1, - get_struct_variable(10, status_vals[i])); + get_struct_variable(10, status_vals)); fprintf (fp, "Volume%d.pair%d.meta: %s\n", volcount, i+1, - get_struct_variable(11, status_vals[i])); + get_struct_variable(11, status_vals)); fprintf (fp, "Volume%d.pair%d.failures: %s\n", volcount, i+1, - get_struct_variable(12, status_vals[i])); + get_struct_variable(12, status_vals)); fprintf (fp, "Volume%d.pair%d.checkpoint_time: %s\n", volcount, - i+1, get_struct_variable(13, status_vals[i])); + i+1, get_struct_variable(13, status_vals)); fprintf (fp, "Volume%d.pair%d.checkpoint_completed: %s\n", - volcount, i+1, get_struct_variable(14, status_vals[i])); + volcount, i+1, get_struct_variable(14, status_vals)); fprintf (fp, "Volume%d.pair%d.checkpoint_completion_time: %s\n", - volcount, i+1, get_struct_variable(15, status_vals[i])); + volcount, i+1, get_struct_variable(15, status_vals)); } out: return ret; -- cgit