# Page Not Found

The URL `ref/mdb/system-variables/spider_udf_table_mon_mutex_count` does not exist.

You might be looking for one of these pages:
- [Optimizing table_open_cache](https://mariadb.com/docs/server/ha-and-performance/optimization-and-tuning/system-variables/optimizing-table_open_cache.md)
- [Spider Status Variables](https://mariadb.com/docs/server/ha-and-performance/optimization-and-tuning/system-variables/spider-status-variables.md)
- [SPIDER_FLUSH_TABLE_MON_CACHE](https://mariadb.com/docs/server/server-usage/storage-engines/spider/spider-functions/spider_flush_table_mon_cache.md)
- [mysql.innodb_table_stats](https://mariadb.com/docs/server/reference/system-tables/the-mysql-database-tables/mysql-innodb_table_stats.md)
- [Spider Table Parameters](https://mariadb.com/docs/server/server-usage/storage-engines/spider/spider-table-parameters.md)

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