| fud_read table huge [message #25472] |
Thu, 09 June 2005 09:20  |
|
|
Hi all,
We're been running a pretty old version of FUD for a while now - 2.3.8. I've noticed lately the performance getting worse, so I thought I'd check out the database.
The major bottleneck seems to revolve around the fud_read table, which is now massive - around 519MB in size.
What is the purpose of this table? From what I can tell, it just records when a post was last read, or something like that? Is there any reason for it to be so big? What are the consequences of just blowing away that table 
Forum stats are as follows:
Our users have posted a total of 665976 messages inside 68347 topics.
We have 10743 registered user(s)
Thanks
Sam
[Updated on: Thu, 09 June 2005 09:20] Report message to a moderator |
|
|
|
| Re: fud_read table huge [message #25481 is a reply to message #25472] |
Thu, 09 June 2005 13:34  |
Ilia
Messages: 13241
Registered: January 2002
Karma: 0
|
Senior Member
Administrator
Core Developer |
|
|
Sam, first you may want to upgrade your forum, it's quite a bit behind the times. It may improve access speeds to that table.
As far as the contents of that table, it is used to indicate which messages users have read. The reason it is so big, is that potentially the table could contain 1 entry per-user per topic.
FUDforum Core Developer
|
|
|
|
| Re: fud_read table huge [message #25494 is a reply to message #25481] |
Thu, 09 June 2005 20:12 |
|
|
Yes I'm certainly overdue for an upgrade!
So if I just wipe the contents of that table, will that mean that every user will go back to having every topic indicated as unread? I'm also looking at ways of reducing the size of the database before the upgrade.
And if so, does that mean that when a user first clicks "mark all topics as read", it will create a record in fud_read for every topic (ie. 68347 records).
Thanks again,
Sam
[Updated on: Thu, 09 June 2005 20:13] Report message to a moderator |
|
|
|
| Re: fud_read table huge [message #25496 is a reply to message #25494] |
Thu, 09 June 2005 21:29 |
|
|
| sdefranc wrote on Fri, 10 June 2005 06:12 |
Yes I'm
And if so, does that mean that when a user first clicks "mark all topics as read", it will create a record in fud_read for every topic (ie. 68347 records).
|
It's ok, I answered my own question - On my forum database I deleted every record from fud_read for my user_id only. I then clicked the "all messages read" link, and it inserted 68000+ records in the fud_read table.
How does this behaviour change in later versions of FUD? It seems not very scalable.
Regards
Sam
|
|
|
|
| Re: fud_read table huge [message #25501 is a reply to message #25496] |
Fri, 10 June 2005 15:25 |
Ilia
Messages: 13241
Registered: January 2002
Karma: 0
|
Senior Member
Administrator
Core Developer |
|
|
In newever versions this is done by setting just a single field.
FUDforum Core Developer
|
|
|
|
Calendar
Search
Help
Members
Register
Login
Home
]