diff --git a/Documentation/Filters/Cache.md b/Documentation/Filters/Cache.md index 6d8600ffe..bc3f8a94e 100644 --- a/Documentation/Filters/Cache.md +++ b/Documentation/Filters/Cache.md @@ -888,52 +888,6 @@ the cached data. storage=storage_inmemory ``` -### `storage_rocksdb` - -This storage module is not built by default and is not included in the -MariaDB MaxScale packages. - -This storage module uses RocksDB database for storing the cached data. The -directory where the RocksDB database will be created is by default created -into the _MaxScale cache_ directory, which usually is not on a RAM disk. For -maximum performance, you may want to explicitly place the RocksDB database -on a RAM disk. -``` -storage=storage_rocksdb -``` - -### Parameters - -#### `cache_directory` - -Specifies the directory under which the filter instance specific RocksDB -databases will be placed. Note that at startup, each RocksDB database will -be deleted and recreated. That is, cache content will not be retained across -MaxScale restarts. - -``` -storage_options=cache_directory=/mnt/maxscale-cache -``` - -With the above setting a directory `/mnt/macscale-cache/storage_rocksdb` will -created, under which the actual instance specific cache directories are created. - -#### `collect_statistics` - -Specifies whether RocksDB should collect statistics that later can be queried -using `maxadmin`. It should be noted, though, that collecting RocksDB statistics -is not without a cost. -From the [RocksDB Documentation](https://github.com/facebook/rocksdb/wiki/Statistics) - -_The overhead of statistics is usually small but non-negligible. We usually -observe an overhead of 5%-10%._ - -The value is a boolean and the default is `false`. - -``` -storage_options=collect_statistics=true -``` - ## Example In the following we define a cache _MyCache_ that uses the cache storage module