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authorKaushal M <kaushal@gluster.com>2011-09-14 09:50:45 +0530
committerVijay Bellur <vijay@gluster.com>2011-09-29 09:39:50 -0700
commitce8a569e9f18cfff2f2befe259c2022d9b37538f (patch)
treea5afc3ceed7a36509dca452feab1566a1896afd0 /xlators/performance/quick-read/src
parentf3a6752cc455676d6e1f946b513636d991825da8 (diff)
performance/io-cache,quick-read: increase cache-size limit
Does the following: 1. Increases cache-size limit from 6GB to 32GB. 2. Prevents 'volume set'from failing when cache-size is set over the limit. Just issues a warning. 3. Performs check on cache-size by comparing with total system memory available in init () and reconfigure () methods. Change-Id: I7dd4d8c53051b89a293696abf1ee8dc237e39a20 BUG: 3495 Reviewed-on: http://review.gluster.com/409 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amar@gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
Diffstat (limited to 'xlators/performance/quick-read/src')
-rw-r--r--xlators/performance/quick-read/src/quick-read.c58
1 files changed, 52 insertions, 6 deletions
diff --git a/xlators/performance/quick-read/src/quick-read.c b/xlators/performance/quick-read/src/quick-read.c
index b5a6161d27e..287ce5afc25 100644
--- a/xlators/performance/quick-read/src/quick-read.c
+++ b/xlators/performance/quick-read/src/quick-read.c
@@ -3401,14 +3401,49 @@ mem_acct_init (xlator_t *this)
return ret;
}
+gf_boolean_t
+check_cache_size_ok (xlator_t *this, int64_t cache_size)
+{
+ int ret = _gf_true;
+ uint64_t total_mem = 0;
+ uint64_t max_cache_size = 0;
+ volume_option_t *opt = NULL;
+
+ GF_ASSERT (this);
+ opt = xlator_volume_option_get (this, "cache-size");
+ if (!opt) {
+ ret = _gf_false;
+ gf_log (this->name, GF_LOG_ERROR,
+ "could not get cache-size option");
+ goto out;
+ }
+
+ total_mem = get_mem_size ();
+ if (-1 == total_mem)
+ max_cache_size = opt->max;
+ else
+ max_cache_size = total_mem;
+
+ gf_log (this->name, GF_LOG_INFO, "Max cache size is %"PRIu64,
+ max_cache_size);
+ if (cache_size > max_cache_size) {
+ ret = _gf_false;
+ gf_log (this->name, GF_LOG_ERROR, "Cache size %"PRIu64
+ " is greater than the max size of %"PRIu64,
+ cache_size, max_cache_size);
+ goto out;
+ }
+out:
+ return ret;
+}
int
reconfigure (xlator_t *this, dict_t *options)
{
- int32_t ret = -1;
- qr_private_t *priv = NULL;
- qr_conf_t *conf = NULL;
-
+ int32_t ret = -1;
+ qr_private_t *priv = NULL;
+ qr_conf_t *conf = NULL;
+ uint64_t cache_size_new = 0;
GF_VALIDATE_OR_GOTO ("quick-read", this, out);
GF_VALIDATE_OR_GOTO (this->name, this->private, out);
GF_VALIDATE_OR_GOTO (this->name, options, out);
@@ -3423,7 +3458,14 @@ reconfigure (xlator_t *this, dict_t *options)
GF_OPTION_RECONF ("cache-timeout", conf->cache_timeout, options, int32,
out);
- GF_OPTION_RECONF ("cache-size", conf->cache_size, options, size, out);
+ GF_OPTION_RECONF ("cache-size", cache_size_new, options, size, out);
+ if (!check_cache_size_ok (this, cache_size_new)) {
+ ret = -1;
+ gf_log (this->name, GF_LOG_ERROR,
+ "Not reconfiguring cache-size");
+ goto out;
+ }
+ conf->cache_size = cache_size_new;
ret = 0;
out:
@@ -3566,6 +3608,10 @@ init (xlator_t *this)
GF_OPTION_INIT ("cache-timeout", conf->cache_timeout, int32, out);
GF_OPTION_INIT ("cache-size", conf->cache_size, size, out);
+ if (!check_cache_size_ok (this, conf->cache_size)) {
+ ret = -1;
+ goto out;
+ }
INIT_LIST_HEAD (&conf->priority_list);
conf->max_pri = 1;
@@ -3648,7 +3694,7 @@ struct volume_options options[] = {
{ .key = {"cache-size"},
.type = GF_OPTION_TYPE_SIZET,
.min = 0,
- .max = 6 * GF_UNIT_GB,
+ .max = 32 * GF_UNIT_GB,
.default_value = "128MB",
.description = "Size of the read cache."
},