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glusterfs/0361-ctr-skip-ctr-xlator-init-if-ctr-is-not-enabled.patch
Milind Changire 1ad23d07c6 autobuild v3.12.2-18 
Resolves: bz#1524336 bz#1622029 bz#1622452
Signed-off-by: Milind Changire <mchangir@redhat.com>
2018-08-27 08:37:56 -04:00

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From 4833168455511785d05f5d20b47644cbda9066cb Mon Sep 17 00:00:00 2001
From: Mohit Agrawal <moagrawal@redhat.com>
Date: Fri, 24 Aug 2018 10:44:59 +0530
Subject: [PATCH 361/362] ctr: skip ctr xlator init if ctr is not enabled
Problem: If ctr xlator is not required it consumes
resources unnecessarily
Solution: Call ctr xlator init only while feature is enabled
> Fixes: bz#1524323
> Change-Id: I378113a390a286be20c4ade1b1bac170a8ef1b14
> (Cherry pick from commit 30e46a9b3cef868e5c781044c99c3d5b066d4760)
> (Reviewed on upstream link 30e46a9b3cef868e5c781044c99c3d5b066d4760)
Change-Id: Ie65c89bf27d2f119fa41cfc143f1f828f9d64b62
BUG: 1524336
Signed-off-by: Mohit Agrawal <moagrawal@redhat.com>
Reviewed-on: https://code.engineering.redhat.com/gerrit/148134
Tested-by: Mohit Agrawal <moagrawa@redhat.com>
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
---
tests/basic/tier/tier_lookup_heal.t | 6 -
.../changetimerecorder/src/changetimerecorder.c | 192 +++++++++++++--------
.../features/changetimerecorder/src/ctr-helper.h | 2 +-
3 files changed, 120 insertions(+), 80 deletions(-)
diff --git a/tests/basic/tier/tier_lookup_heal.t b/tests/basic/tier/tier_lookup_heal.t
index 7dac1fd..8f8292c 100755
--- a/tests/basic/tier/tier_lookup_heal.t
+++ b/tests/basic/tier/tier_lookup_heal.t
@@ -36,12 +36,6 @@ TEST stat .
TEST touch file1
TEST stat file1
-# gf_file_tb and gf_flink_tb should be empty
-ENTRY_COUNT=$(echo "select * from gf_file_tb; select * from gf_flink_tb;" | \
- sqlite3 $B0/${V0}$LAST_BRICK/.glusterfs/${V0}$LAST_BRICK.db | wc -l )
-TEST [ $ENTRY_COUNT -eq 0 ]
-
-
#Attach tier and switch ON CTR Xlator.
TEST $CLI volume attach-tier $V0 replica 2 $H0:$B0/${V0}$CACHE_BRICK_FIRST $H0:$B0/${V0}$CACHE_BRICK_LAST
TEST $CLI volume set $V0 features.ctr-enabled on
diff --git a/xlators/features/changetimerecorder/src/changetimerecorder.c b/xlators/features/changetimerecorder/src/changetimerecorder.c
index 5f82d33..9d4f8a3 100644
--- a/xlators/features/changetimerecorder/src/changetimerecorder.c
+++ b/xlators/features/changetimerecorder/src/changetimerecorder.c
@@ -2086,6 +2086,84 @@ out:
}
+/* Call to initialize db for ctr xlator while ctr is enabled */
+int32_t
+initialize_ctr_resource (xlator_t *this, gf_ctr_private_t *priv)
+{
+ int ret_db = -1;
+ dict_t *params_dict = NULL;
+
+ if (!priv)
+ goto error;
+
+ /* For compaction */
+ priv->compact_active = _gf_false;
+ priv->compact_mode_switched = _gf_false;
+ ret_db = pthread_mutex_init (&priv->compact_lock, NULL);
+
+ if (ret_db) {
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ CTR_MSG_FATAL_ERROR,
+ "FATAL: Failed initializing compaction mutex");
+ goto error;
+ }
+
+ params_dict = dict_new ();
+ if (!params_dict) {
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ CTR_MSG_INIT_DB_PARAMS_FAILED,
+ "DB Params cannot initialized!");
+ goto error;
+ }
+
+ /*Extract db params options*/
+ ret_db = extract_db_params(this, params_dict, priv->gfdb_db_type);
+ if (ret_db) {
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ CTR_MSG_EXTRACT_DB_PARAM_OPTIONS_FAILED,
+ "Failed extracting db params options");
+ goto error;
+ }
+
+ /*Create a memory pool for ctr xlator*/
+ this->local_pool = mem_pool_new (gf_ctr_local_t, 64);
+ if (!this->local_pool) {
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ CTR_MSG_CREATE_LOCAL_MEMORY_POOL_FAILED,
+ "failed to create local memory pool");
+ ret_db = -1;
+ goto error;
+ }
+
+ /*Initialize Database Connection*/
+ priv->_db_conn = init_db(params_dict, priv->gfdb_db_type);
+ if (!priv->_db_conn) {
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ CTR_MSG_FATAL_ERROR,
+ "FATAL: Failed initializing data base");
+ ret_db = -1;
+ goto error;
+ }
+
+ ret_db = 0;
+ goto out;
+
+error:
+ if (this)
+ mem_pool_destroy (this->local_pool);
+
+ if (priv) {
+ GF_FREE (priv->ctr_db_path);
+ }
+ GF_FREE (priv);
+
+out:
+ if (params_dict)
+ dict_unref (params_dict);
+
+ return ret_db;
+}
+
/******************************************************************************/
int
reconfigure (xlator_t *this, dict_t *options)
@@ -2095,6 +2173,7 @@ reconfigure (xlator_t *this, dict_t *options)
gf_ctr_private_t *priv = NULL;
priv = this->private;
+
if (dict_get_str(options, "changetimerecorder.frequency",
&temp_str)) {
gf_msg(this->name, GF_LOG_TRACE, 0, CTR_MSG_SET, "set");
@@ -2102,6 +2181,26 @@ reconfigure (xlator_t *this, dict_t *options)
GF_OPTION_RECONF ("ctr-enabled", priv->enabled, options,
bool, out);
+ if (!priv->enabled) {
+ gf_msg (GFDB_DATA_STORE, GF_LOG_INFO, 0,
+ CTR_MSG_XLATOR_DISABLED,
+ "CTR Xlator is not enabled so skip ctr reconfigure");
+ goto out;
+ }
+
+ /* If ctr is enabled after skip init for ctr xlator then call
+ initialize_ctr_resource during reconfigure phase to allocate resources for
+ xlator
+ */
+ if (priv->enabled && !priv->_db_conn) {
+ ret = initialize_ctr_resource (this, priv);
+ if (ret) {
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ CTR_MSG_FATAL_ERROR,
+ "FATAL: Failed ctr initialize resource");
+ goto out;
+ }
+ }
GF_OPTION_RECONF ("record-counters", priv->ctr_record_counter, options,
bool, out);
@@ -2174,15 +2273,19 @@ init (xlator_t *this)
{
gf_ctr_private_t *priv = NULL;
int ret_db = -1;
- dict_t *params_dict = NULL;
- GF_VALIDATE_OR_GOTO ("ctr", this, error);
+ if (!this) {
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ CTR_MSG_FATAL_ERROR,
+ "FATAL: ctr this is not initialized");
+ return -1;
+ }
if (!this->children || this->children->next) {
gf_msg (this->name, GF_LOG_ERROR, 0,
CTR_MSG_FATAL_ERROR,
"FATAL: ctr should have exactly one child");
- goto error;
+ return -1;
}
if (!this->parents) {
@@ -2196,7 +2299,7 @@ init (xlator_t *this)
gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
CTR_MSG_CALLOC_FAILED,
"Calloc did not work!!!");
- goto error;
+ return -1;
}
/*Default values for the translator*/
@@ -2205,94 +2308,37 @@ init (xlator_t *this)
priv->ctr_hot_brick = _gf_false;
priv->gfdb_db_type = GFDB_SQLITE3;
priv->gfdb_sync_type = GFDB_DB_SYNC;
- priv->enabled = _gf_true;
priv->_db_conn = NULL;
priv->ctr_lookupheal_link_timeout =
CTR_DEFAULT_HARDLINK_EXP_PERIOD;
priv->ctr_lookupheal_inode_timeout =
CTR_DEFAULT_INODE_EXP_PERIOD;
- /* For compaction */
- priv->compact_active = _gf_false;
- priv->compact_mode_switched = _gf_false;
- ret_db = pthread_mutex_init (&priv->compact_lock, NULL);
-
- if (ret_db) {
- gf_msg (this->name, GF_LOG_ERROR, 0,
- CTR_MSG_FATAL_ERROR,
- "FATAL: Failed initializing compaction mutex");
- goto error;
- }
-
/*Extract ctr xlator options*/
ret_db = extract_ctr_options (this, priv);
if (ret_db) {
gf_msg (this->name, GF_LOG_ERROR, 0,
CTR_MSG_EXTRACT_CTR_XLATOR_OPTIONS_FAILED,
"Failed extracting ctr xlator options");
- goto error;
+ return -1;
}
- params_dict = dict_new ();
- if (!params_dict) {
- gf_msg (this->name, GF_LOG_ERROR, 0,
- CTR_MSG_INIT_DB_PARAMS_FAILED,
- "DB Params cannot initialized!");
- goto error;
- }
-
- /*Extract db params options*/
- ret_db = extract_db_params(this, params_dict, priv->gfdb_db_type);
- if (ret_db) {
- gf_msg (this->name, GF_LOG_ERROR, 0,
- CTR_MSG_EXTRACT_DB_PARAM_OPTIONS_FAILED,
- "Failed extracting db params options");
- goto error;
+ if (!priv->enabled) {
+ gf_msg (GFDB_DATA_STORE, GF_LOG_INFO, 0,
+ CTR_MSG_XLATOR_DISABLED,
+ "CTR Xlator is not enabled so skip ctr init");
+ goto out;
}
- /*Create a memory pool for ctr xlator*/
- this->local_pool = mem_pool_new (gf_ctr_local_t, 64);
- if (!this->local_pool) {
+ ret_db = initialize_ctr_resource (this, priv);
+ if (ret_db) {
gf_msg (this->name, GF_LOG_ERROR, 0,
- CTR_MSG_CREATE_LOCAL_MEMORY_POOL_FAILED,
- "failed to create local memory pool");
- goto error;
- }
-
- /*Initialize Database Connection*/
- priv->_db_conn = init_db(params_dict, priv->gfdb_db_type);
- if (!priv->_db_conn) {
- gf_msg (this->name, GF_LOG_ERROR, 0,
- CTR_MSG_FATAL_ERROR,
- "FATAL: Failed initializing data base");
- goto error;
- }
-
-
- ret_db = 0;
- goto out;
-
-/*Error handling */
-error:
-
- if (this)
- mem_pool_destroy (this->local_pool);
-
- if (priv) {
- GF_FREE (priv->ctr_db_path);
+ CTR_MSG_FATAL_ERROR,
+ "FATAL: Failed ctr initialize resource");
+ return -1;
}
- GF_FREE (priv);
-
- if (params_dict)
- dict_unref (params_dict);
-
- return -1;
out:
-
- if (params_dict)
- dict_unref (params_dict);
-
this->private = (void *)priv;
return 0;
}
@@ -2343,7 +2389,7 @@ fini (xlator_t *this)
priv = this->private;
- if (priv) {
+ if (priv && priv->enabled) {
if (fini_db (priv->_db_conn)) {
gf_msg (this->name, GF_LOG_WARNING, 0,
CTR_MSG_CLOSE_DB_CONN_FAILED, "Failed closing "
diff --git a/xlators/features/changetimerecorder/src/ctr-helper.h b/xlators/features/changetimerecorder/src/ctr-helper.h
index 4fd4f74..f0b0dce 100644
--- a/xlators/features/changetimerecorder/src/ctr-helper.h
+++ b/xlators/features/changetimerecorder/src/ctr-helper.h
@@ -408,7 +408,7 @@ do {\
GF_ASSERT (this);\
GF_ASSERT (this->private);\
_priv = this->private;\
- if (!_priv->enabled)\
+ if (!_priv->_db_conn)\
goto label;\
} while (0)
--
1.8.3.1
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