Hi,

I'm trying to improve performance for a 2 Nodes NDB based cluster, launched mysqld with --query-cache-size=32M, and did some repetitive queries, but qcache does not seems to be used..

mysql> SHOW VARIABLES LIKE '%query_cache%'; +------------------------------+----------+ | Variable_name | Value | +------------------------------+----------+ | have_query_cache | YES | | query_cache_limit | 1048576 | | query_cache_min_res_unit | 4096 | | query_cache_size | 33554432 | | query_cache_type | ON | | query_cache_wlock_invalidate | OFF | +------------------------------+----------+ 6 rows in set (0.00 sec)

mysql> SHOW STATUS LIKE 'Qcache%'; +-------------------------+----------+ | Variable_name | Value | +-------------------------+----------+ | Qcache_free_blocks | 1 | | Qcache_free_memory | 33545640 | | Qcache_hits | 0 | | Qcache_inserts | 0 | | Qcache_lowmem_prunes | 0 | | Qcache_not_cached | 827 | | Qcache_queries_in_cache | 0 | | Qcache_total_blocks | 1 | +-------------------------+----------+ 8 rows in set (0.00 sec)

is qcache already implemented on top of NDB ?

Olivier