diff options
Diffstat (limited to 'xlators/performance/io-cache')
| -rw-r--r-- | xlators/performance/io-cache/src/io-cache.c | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/xlators/performance/io-cache/src/io-cache.c b/xlators/performance/io-cache/src/io-cache.c index 490d3168836..296edf23303 100644 --- a/xlators/performance/io-cache/src/io-cache.c +++ b/xlators/performance/io-cache/src/io-cache.c @@ -1470,6 +1470,165 @@ mem_acct_init (xlator_t *this) return ret; } +int +reconfigure (xlator_t *this, dict_t *options) +{ + ioc_table_t *table = NULL; + int32_t cache_timeout; + int64_t min_file_size = 0; + int64_t max_file_size = 0; + char *tmp = NULL; + uint64_t cache_size; + char *cache_size_string = NULL; + int ret = 0; + + table = this->private; + + ioc_table_lock (table); + { + if (dict_get (options, "cache-timeout")) { + cache_timeout = + data_to_uint32 (dict_get (options, + "cache-timeout")); + if (cache_timeout < 0){ + gf_log (this->name, GF_LOG_WARNING, + "cache-timeout %d seconds invalid," + " has to be >=0", cache_timeout); + ret = -1; + goto out; + } + + + if (cache_timeout > 60){ + gf_log (this->name, GF_LOG_WARNING, + "cache-timeout %d seconds invalid," + " has to be <=60", cache_timeout); + ret = -1; + goto out; + } + + table->cache_timeout = cache_timeout; + + gf_log (this->name, GF_LOG_DEBUG, + "Reconfiguring %d seconds to" + " revalidate cache", table->cache_timeout); + } + + + if (dict_get (options, "cache-size")) + cache_size_string = data_to_str (dict_get (options, + "cache-size")); + if (cache_size_string) { + if (gf_string2bytesize (cache_size_string, + &cache_size) != 0) { + gf_log ("io-cache", GF_LOG_ERROR, + "invalid number format \"%s\" of " + "\"option cache-size\" Defaulting" + "to old value", cache_size_string); + ret = -1; + goto out; + } + + if (cache_size < (4*(2^20))) { + gf_log(this->name, GF_LOG_ERROR, "Reconfiguration" + "'option cache-size %s' failed , Max value" + "can be 4MiB, Defaulting to old value (%d)" + , cache_size_string, table->cache_size); + ret = -1; + goto out; + } + + if (cache_size > (6 *(2^30))) { + gf_log(this->name, GF_LOG_ERROR, "Reconfiguration" + "'option cache-size %s' failed , Max value" + "can be 6GiB, Defaulting to old value (%d)" + , cache_size_string, table->cache_size); + ret = -1; + goto out; + } + + + gf_log (this->name, GF_LOG_DEBUG, "Reconfiguring " + " cache-size %"PRIu64"", table->cache_size); + table->cache_size = cache_size; + } + + + if (dict_get (options, "priority")) { + char *option_list = data_to_str (dict_get (options, + "priority")); + gf_log (this->name, GF_LOG_TRACE, + "option path %s", option_list); + /* parse the list of pattern:priority */ + table->max_pri = ioc_get_priority_list (option_list, + &table->priority_list); + + if (table->max_pri == -1) { + ret = -1; + goto out; + } + table->max_pri ++; + } + + + + min_file_size = table->min_file_size; + tmp = data_to_str (dict_get (options, "min-file-size")); + if (tmp != NULL) { + if (gf_string2bytesize (tmp, + (uint64_t *)&min_file_size) + != 0) { + gf_log ("io-cache", GF_LOG_ERROR, + "invalid number format \"%s\" of " + "\"option min-file-size\"", tmp); + ret = -1; + goto out; + } + + gf_log (this->name, GF_LOG_DEBUG, + "Reconfiguring min-file-size %"PRIu64"", + table->min_file_size); + } + + max_file_size = table->max_file_size; + tmp = data_to_str (dict_get (options, "max-file-size")); + if (tmp != NULL) { + if (gf_string2bytesize (tmp, + (uint64_t *)&max_file_size) + != 0) { + gf_log ("io-cache", GF_LOG_ERROR, + "invalid number format \"%s\" of " + "\"option max-file-size\"", tmp); + ret = -1; + goto out; + } + + + gf_log (this->name, GF_LOG_DEBUG, + "Reconfiguring max-file-size %"PRIu64"", + table->max_file_size); + } + + if ((max_file_size >= 0) & (min_file_size > max_file_size)) { + gf_log ("io-cache", GF_LOG_ERROR, "minimum size (%" + PRIu64") of a file that can be cached is " + "greater than maximum size (%"PRIu64"). " + "Hence Defaulting to old value", + table->min_file_size, table->max_file_size); + ret = -1; + goto out; + } + + table->min_file_size = min_file_size; + table->max_file_size = max_file_size; + } + + ioc_table_unlock (table); +out: + return ret; + +} + /* * init - * @this: |