Description:
When the name of a nonexistent storage engine is used with SHOW ENGINE ... STATUS, the client returns the output from
mysql> select version();
+-------------------+
| version() |
+-------------------+
| 5.1.15-beta-debug |
+-------------------+
1 row in set (0.00 sec)
mysql> show engine jon status\G
*************************** 1. row ***************************
Type: ndbcluster
Name: connection
Status: cluster_node_id=8, connected_host=192.168.0.103, connected_port=1186, number_of_data_nodes=4, number_of_ready_data_nodes=4, connect_count=11
*************************** 2. row ***************************
Type: ndbcluster
Name: NdbTransaction
Status: created=4, free=4, sizeof=216
*************************** 3. row ***************************
Type: ndbcluster
Name: NdbOperation
Status: created=8, free=8, sizeof=660
*************************** 4. row ***************************
Type: ndbcluster
Name: NdbIndexScanOperation
Status: created=0, free=0, sizeof=744
*************************** 5. row ***************************
Type: ndbcluster
Name: NdbIndexOperation
Status: created=0, free=0, sizeof=664
*************************** 6. row ***************************
Type: ndbcluster
Name: NdbRecAttr
Status: created=0, free=0, sizeof=60
*************************** 7. row ***************************
Type: ndbcluster
Name: NdbApiSignal
Status: created=16, free=16, sizeof=136
*************************** 8. row ***************************
Type: ndbcluster
Name: NdbLabel
Status: created=0, free=0, sizeof=196
*************************** 9. row ***************************
Type: ndbcluster
Name: NdbBranch
Status: created=0, free=0, sizeof=24
*************************** 10. row ***************************
Type: ndbcluster
Name: NdbSubroutine
Status: created=0, free=0, sizeof=68
*************************** 11. row ***************************
Type: ndbcluster
Name: NdbCall
Status: created=0, free=0, sizeof=16
*************************** 12. row ***************************
Type: ndbcluster
Name: NdbBlob
Status: created=0, free=0, sizeof=264
*************************** 13. row ***************************
Type: ndbcluster
Name: NdbReceiver
Status: created=0, free=0, sizeof=68
*************************** 14. row ***************************
Type: ndbcluster
Name: binlog
Status: latest_epoch=0, latest_trans_epoch=241860, latest_received_binlog_epoch=0, latest_handled_binlog_epoch=0, latest_applied_binlog_epoch=0
*************************** 15. row ***************************
Type: InnoDB
Name:
Status:
=====================================
070120 10:07:20 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 40 seconds
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 0, signal count 0
Mutex spin waits 0, rounds 0, OS waits 0
RW-shared spins 7, OS waits 0; RW-excl spins 0, OS waits 0
------------
TRANSACTIONS
------------
Trx id counter 0 770
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 4864, OS thread id 1115433904
MySQL thread id 22, query id 305516 localhost root
show engine jon status
---TRANSACTION 0 0, not started, process no 4864, OS thread id 1106049968
MySQL thread id 1, query id 0 Waiting for event from ndbcluster
--------
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
0 OS file reads, 38 OS file writes, 16 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 fsyncs/s
-------------------------------------
INSERT BUFFER AND ADAPTIVE HASH INDEX
-------------------------------------
Ibuf: size 1, free list len 0, seg size 2,
0 inserts, 0 merged recs, 0 merges
Hash table size 34679, used cells 0, node heap has 1 buffer(s)
0.00 hash searches/s, 0.00 non-hash searches/s
---
LOG
---
Log sequence number 0 46409
Log flushed up to 0 46409
Last checkpoint at 0 46409
0 pending log writes, 0 pending chkp writes
11 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total memory allocated 19910438; in additional pool allocated 862080
Dictionary memory allocated 21752
Buffer pool size 512
Free buffers 333
Database pages 178
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages read 0, created 178, written 189
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
No buffer pool page gets since the last printout
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
1 read views open inside InnoDB
Main thread process no. 4864, id 1104718768, state: waiting for server activity
Number of rows inserted 0, updated 0, deleted 0, read 0
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================
15 rows in set, 1 warning (0.00 sec)
mysql> show warnings;
+-------+------+----------------------------+
| Level | Code | Message |
+-------+------+----------------------------+
| Error | 1286 | Unknown table engine 'jon' |
+-------+------+----------------------------+
1 row in set (0.00 sec)
How to repeat:
See Description.
Suggested fix:
The statement should fail with an error.
Note: The statement works correctly in this regard in 5.0.28-enterprise.