glusterfs/SOURCES/0043-inode-don-t-dump-the-whole-table-to-CLI.patch

From 416dfc70ef87400e1ddfd70e5b6e512d330b54a6 Mon Sep 17 00:00:00 2001
From: Sheetal Pamecha <sheetal.pamecha08@gmail.com>
Date: Tue, 2 Apr 2019 23:25:11 +0530
Subject: [PATCH 43/52] inode: don't dump the whole table to CLI

dumping the whole inode table detail to screen doesn't solve any
purpose. We should be getting only toplevel details on CLI, and
then if one wants to debug further, then they need to get to
'statedump' to get full details.

Patch on upstream master: https://review.gluster.org/#/c/glusterfs/+/22347/

BUG: 1578703
Change-Id: Ie7e7f5a67c1606e3c18ce21ee6df6c7e4550c211
Signed-off-by: Sheetal Pamecha <spamecha@redhat.com>
Reviewed-on: https://code.engineering.redhat.com/gerrit/166768
Tested-by: RHGS Build Bot <nigelb@redhat.com>
Reviewed-by: Sunil Kumar Heggodu Gopala Acharya <sheggodu@redhat.com>
---
 cli/src/cli-rpc-ops.c    | 23 ++++++++++++++++++++++-
 libglusterfs/src/inode.c | 13 +++++++++++++
 2 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/cli/src/cli-rpc-ops.c b/cli/src/cli-rpc-ops.c
index 78043cd..12e7fcc 100644
--- a/cli/src/cli-rpc-ops.c
+++ b/cli/src/cli-rpc-ops.c
@@ -7606,15 +7606,24 @@ cli_print_volume_status_itables(dict_t *dict, char *prefix)
     uint32_t active_size = 0;
     uint32_t lru_size = 0;
     uint32_t purge_size = 0;
+    uint32_t lru_limit = 0;
     int i = 0;
 
     GF_ASSERT(dict);
     GF_ASSERT(prefix);
 
+    snprintf(key, sizeof(key), "%s.lru_limit", prefix);
+    ret = dict_get_uint32(dict, key, &lru_limit);
+    if (ret)
+        goto out;
+    cli_out("LRU limit     : %u", lru_limit);
+
     snprintf(key, sizeof(key), "%s.active_size", prefix);
     ret = dict_get_uint32(dict, key, &active_size);
     if (ret)
         goto out;
+
+#ifdef DEBUG
     if (active_size != 0) {
         cli_out("Active inodes:");
         cli_out("%-40s %14s %14s %9s", "GFID", "Lookups", "Ref", "IA type");
@@ -7626,10 +7635,16 @@ cli_print_volume_status_itables(dict_t *dict, char *prefix)
     }
     cli_out(" ");
 
+#else
+    cli_out("Active Inodes : %u", active_size);
+
+#endif
     snprintf(key, sizeof(key), "%s.lru_size", prefix);
     ret = dict_get_uint32(dict, key, &lru_size);
     if (ret)
         goto out;
+
+#ifdef DEBUG
     if (lru_size != 0) {
         cli_out("LRU inodes:");
         cli_out("%-40s %14s %14s %9s", "GFID", "Lookups", "Ref", "IA type");
@@ -7640,11 +7655,15 @@ cli_print_volume_status_itables(dict_t *dict, char *prefix)
         cli_print_volume_status_inode_entry(dict, key);
     }
     cli_out(" ");
+#else
+    cli_out("LRU Inodes    : %u", lru_size);
+#endif
 
     snprintf(key, sizeof(key), "%s.purge_size", prefix);
     ret = dict_get_uint32(dict, key, &purge_size);
     if (ret)
         goto out;
+#ifdef DEBUG
     if (purge_size != 0) {
         cli_out("Purged inodes:");
         cli_out("%-40s %14s %14s %9s", "GFID", "Lookups", "Ref", "IA type");
@@ -7654,7 +7673,9 @@ cli_print_volume_status_itables(dict_t *dict, char *prefix)
         snprintf(key, sizeof(key), "%s.purge%d", prefix, i);
         cli_print_volume_status_inode_entry(dict, key);
     }
-
+#else
+    cli_out("Purge Inodes  : %u", purge_size);
+#endif
 out:
     return;
 }
diff --git a/libglusterfs/src/inode.c b/libglusterfs/src/inode.c
index 87f74e0..96ddea5 100644
--- a/libglusterfs/src/inode.c
+++ b/libglusterfs/src/inode.c
@@ -2598,6 +2598,11 @@ inode_table_dump_to_dict(inode_table_t *itable, char *prefix, dict_t *dict)
     if (ret)
         return;
 
+    snprintf(key, sizeof(key), "%s.itable.lru_limit", prefix);
+    ret = dict_set_uint32(dict, key, itable->lru_limit);
+    if (ret)
+        goto out;
+
     snprintf(key, sizeof(key), "%s.itable.active_size", prefix);
     ret = dict_set_uint32(dict, key, itable->active_size);
     if (ret)
@@ -2613,6 +2618,13 @@ inode_table_dump_to_dict(inode_table_t *itable, char *prefix, dict_t *dict)
     if (ret)
         goto out;
 
+#ifdef DEBUG
+    /* Dumping inode details in dictionary and sending it to CLI is not
+       required as when a developer (or support team) asks for this command
+       output, they just want to get top level detail of inode table.
+       If one wants to debug, let them take statedump and debug, this
+       wouldn't be available in CLI during production setup.
+    */
     list_for_each_entry(inode, &itable->active, list)
     {
         snprintf(key, sizeof(key), "%s.itable.active%d", prefix, count++);
@@ -2632,6 +2644,7 @@ inode_table_dump_to_dict(inode_table_t *itable, char *prefix, dict_t *dict)
         snprintf(key, sizeof(key), "%s.itable.purge%d", prefix, count++);
         inode_dump_to_dict(inode, key, dict);
     }
+#endif
 
 out:
     pthread_mutex_unlock(&itable->lock);
-- 
1.8.3.1