Hi,

why innodb queries work MUCH slower (100 times) than if the table was of
myisam type? It's mysql 4.0.3 on FreeBSD 4.5 server. The innodb monitor
outputs many messages like the following, why are they there and what do
they mean?

Purge done for trx's n:o < 0 782 undo n:o < 0 0
Total number of lock structs in row lock hash table 0
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 0 3811, ACTIVE 0 sec, OS thread id 10250 fetching rows
MySQL thread id 2, query id 3044 localhost handy Sending data
SELECT count(*) from stat
Trx read view will not see trx with id >= 0 3812, sees < 0 3807
---TRANSACTION 0 3810, ACTIVE 1 sec, OS thread id 12300 fetching rows
MySQL thread id 4, query id 3043 localhost handy Sending data
SELECT count(*) from stat
Trx read view will not see trx with id >= 0 3811, sees < 0 3806
---TRANSACTION 0 3809, ACTIVE 1 sec, OS thread id 13325 fetching rows
MySQL thread id 5, query id 3042 localhost handy Sending data
SELECT count(*) from stat
Trx read view will not see trx with id >= 0 3811, sees < 0 3806
---TRANSACTION 0 3808, ACTIVE 1 sec, OS thread id 14350 fetching rows
MySQL thread id 6, query id 3041 localhost handy Sending data
SELECT count(*) from stat
Trx read view will not see trx with id >= 0 3809, sees < 0 3804
---TRANSACTION 0 3807, ACTIVE 1 sec, OS thread id 11275 fetching rows
MySQL thread id 3, query id 3040 localhost handy Sending data
SELECT count(*) from stat
Trx read view will not see trx with id >= 0 3808, sees < 0 3803

Any help will be appreciated, thanks!

----
Alexander Varshavchick, Metrocom Joint Stock Company
Phone: (812)118-3322, 118-3115(fax)


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