mysql> show processlist; +----+------+-----------+------------+---------+------+--------------+------------------------------------------------------------------------------------------------------+ | Id | User | Host | db | Command | Time | State | Info | +----+------+-----------+------------+---------+------+--------------+------------------------------------------------------------------------------------------------------+ | 1 | root | localhost | accounting | Query | 2934 | Sending data | select ac,src,dst,sum(bytes),sum(packets),srcuser,dstuser from data where stamp > '2006-08-23 01:00: | | 11 | root | localhost | NULL | Query | 0 | NULL | show processlist | +----+------+-----------+------------+---------+------+--------------+------------------------------------------------------------------------------------------------------+ 2 rows in set (0.03 sec) ===================================== 060824 15:54:03 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 47 seconds ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 25, signal count 25 Mutex spin waits 0, rounds 0, OS waits 0 RW-shared spins 50, OS waits 25; RW-excl spins 0, OS waits 0 ------------ TRANSACTIONS ------------ Trx id counter 0 1793 Purge done for trx's n:o < 0 0 undo n:o < 0 0 History list length 0 Total number of lock structs in row lock hash table 0 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 0 0, not started, process no 28900, OS thread id 1141946720 MySQL thread id 11, query id 27 localhost root show engine innodb status ---TRANSACTION 0 1792, ACTIVE 2988 sec, process no 28900, OS thread id 1141414240 fetching rows, thread declared inside InnoDB 323 mysql tables in use 1, locked 0 MySQL thread id 1, query id 18 localhost root Sending data select ac,src,dst,sum(bytes),sum(packets),srcuser,dstuser from data where stamp > '2006-08-23 01:00:00' group by hash Trx read view will not see trx with id >= 0 1793, sees < 0 1793 -------- FILE I/O -------- I/O thread 0 state: waiting for i/o request (insert buffer thread) I/O thread 1 state: waiting for i/o request (log thread) I/O thread 2 state: waiting for i/o request (read thread) I/O thread 3 state: waiting for i/o request (write thread) Pending normal aio reads: 0, aio writes: 0, ibuf aio reads: 0, log i/o's: 0, sync i/o's: 0 Pending flushes (fsync) log: 0; buffer pool: 0 350832 OS file reads, 3 OS file writes, 3 OS fsyncs 1 pending preads, 0 pending pwrites 116.32 reads/s, 16569 avg bytes/read, 0.00 writes/s, 0.00 fsyncs/s ------------------------------------- INSERT BUFFER AND ADAPTIVE HASH INDEX ------------------------------------- Ibuf for space 0: size 1, free list len 0, seg size 2, is empty Ibuf for space 0: size 1, free list len 0, seg size 2, 0 inserts, 0 merged recs, 0 merges Hash table size 2490329, used cells 0, node heap has 0 buffer(s) 0.00 hash searches/s, 0.00 non-hash searches/s --- LOG --- Log sequence number 1 2132051109 Log flushed up to 1 2132051099 Last checkpoint at 1 2132051099 0 pending log writes, 0 pending chkp writes 8 log i/o's done, 0.00 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total memory allocated 1465009112; in additional pool allocated 199424 Buffer pool size 76800 Free buffers 0 Database pages 76800 Modified db pages 1 Pending reads 1 Pending writes: LRU 0, flush list 0, single page 0 Pages read 352108, created 0, written 0 117.64 reads/s, 0.00 creates/s, 0.00 writes/s Buffer pool hit rate 780 / 1000 -------------- ROW OPERATIONS -------------- 1 queries inside InnoDB, 0 queries in queue 2 read views open inside InnoDB Main thread process no. 28900, id 1140881760, state: waiting for server activity Number of rows inserted 0, updated 0, deleted 0, read 7312556 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 2381.91 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================