Table level locking is inherent to MyIsam.

Look into partitioning, as this breaks table into two or more other tables which will lock separately.

Or use InnoDB:

ALTER TABLE ... SET ENGINE=InnoDB;  (I think)

Ben


Krishna Chandra Prajapati wrote:
Hi,

I am looking for a solution to reduce the table locks as mytop shows that
table gets locked very frequently. During report generation.

Thanks,
Prajapati

On Tue, May 13, 2008 at 1:10 PM, Ananda Kumar <[EMAIL PROTECTED]> wrote:

what is the reason for creating main_dup. If your thinking of taking a
backup of all the changes from  main table, then the trigger also will have
to wait, till the locks on the main table are released.

This trigger would add another feather to the lock/load on the machine.

regards
anandkl


On 5/13/08, Krishna Chandra Prajapati <[EMAIL PROTECTED]> wrote:
Hi,

Generally, in data modelling there are some independent table, user
related
tables, master tables and one main table which is related with most of
the
tables. Almost in all the queries main table is involved to fetch the
`id`.
In this way main table is used maximum. some times the main table gets
locked due to the other query. When the hits on database server
increases
the locking time will increase.

Is there any way to reduce the locking time of main table.
for eg main_dup can be created. To reflect all the changes from main
table
to main_dup trigger can be used. So main_dup can be used to reduce the
locking time of table.

The above is my idea. Is there any other way to reduce the locking
period.

--
Krishna Chandra Prajapati
MySQL DBA,
Ed Ventures e-Learning Pvt.Ltd.
1-8-303/48/15, Sindhi Colony
P.G.Road, Secunderabad.
Pin Code: 500003
Office Number: 040-66489771
Mob: 9912924044
URL: ed-ventures-online.com
Email-id: [EMAIL PROTECTED]





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