Краткое разъяснение конфигурационных
директив.
-
mysqlnd_qc.enable_qc
integer
-
Enables or disables the plugin. If disabled the extension will not plug
into
mysqlnd to proxy internal
mysqlnd C API calls.
-
mysqlnd_qc.ttl
integer
-
Default Time-to-Live (TTL) for cache entries in seconds.
-
mysqlnd_qc.cache_by_default
integer
-
Cache all queries regardless if they begin with the SQL hint that
enables caching of a query or not. Storage handler cannot overrule
the setting. It is evaluated by the core of the plugin.
-
mysqlnd_qc.cache_no_table
integer
-
Cache queries with no table name in any of columns meta data
of their result set, e.g.
SELECT SLEEP(1)?
-
mysqlnd_qc.use_request_time
integer
-
Use PHP global request time to avoid
gettimeofday() system calls?
If using
APC
storage handler
it should be set to the value of
apc.use_request_time
, if not
warnings will be generated.
-
mysqlnd_qc.time_statistics
integer
-
Collect run time and store time statistics using
gettimeofday() system call? Data will be
collected only if you also set
mysqlnd_qc.collect_statistics = 1,
-
mysqlnd_qc.collect_statistics
integer
-
Collect statistics for
mysqlnd_qc_get_core_stats()?
Does not influence storage handler statistics! Handler statistics
can be an integral part of the handler internal storage format.
Thereofore, collection of some handler statistics cannot be disabled.
-
mysqlnd_qc.collect_statistics-log-file
integer
-
If mysqlnd_qc.collect_statistics and
mysqlnd_qc.collect_statistics_log_file
are set, the plugin will dump statistics into the specified
log file at every 10th web request during PHP request shutdown.
The log file needs to be writeable by the web server user.
Since 1.1.0.
-
mysqlnd_qc.collect_query_trace
integer
-
Collect query back traces?
-
mysqlnd_qc.query_trace_bt_depth
integer
-
Maximum depth/level of a query code backtrace.
-
mysqlnd_qc.slam_defense
integer
-
Activates handler based slam defense if available.
Supported by
Default and
APC
storage handler
-
mysqlnd_qc.slam_defense_ttl
integer
-
TTL for stale cache entries which are
served while another client updates the entries. Supported by
APC
storage handler.
-
mysqlnd_qc.collect_normalized_query_trace
integer
-
Collect aggregated normalized query traces? The setting
has no effect by default. You compile the extension
using the define
NORM_QUERY_TRACE_LOG to make use of the setting.
-
mysqlnd_qc.std_data_copy
integer
-
Default storage handler: copy cached wire data?
EXPERIMENTAL – use default setting!
-
mysqlnd_qc.apc_prefix
string
-
The
APC
storage handler stores data in the
APC user cache. The setting sets a prefix to be
used for cache entries.
-
mysqlnd_qc.memc_server
string
-
MEMCACHE storage handler: memcache server host.
-
mysqlnd_qc.memc_port
integer
-
MEMCACHE storage handler: memcached server port.
-
mysqlnd_qc.sqlite_data_file
string
-
sqlite storage handler: data file. Any setting
but
:memory: may be of little practical value.