table truncates periodically [#213674]

Comment #1

firebus CreditAttribution: firebus commented 24 January 2008 at 23:53

look through the code for this:

cache_clear_all('*', 'cache_forum', TRUE);

that will show you all the instances in which forum is cleared.

currently the forum cache is cleared whenever any modification is made to any
-term
-node
-comment

do you get a new/updated/deleted node or comment every 5 minutes?

the forum cache works great but is far from optimal. i've got a major rework of the forum cache in the works that will respect modules that rewrite taxonomy queries and will be a little more persistent.

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Comment #2

11 CreditAttribution: 11 commented 25 January 2008 at 21:48

yes, gets comment in that time

but i thougt the forum_cache patch provides caching the forum structure only,
everything else is node and should be node_cache's work anyway

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Comment #3

firebus CreditAttribution: firebus commented 25 January 2008 at 22:01

the cached forum object includes things like number of comments on a node, most recent comment on a node, etc. for forum nodes. that data is out of date when a new comment is added to a forum node.

with the current implementation there's room for improvement by, say, testing the node to see if it's type==forum before clearing the cache.

the next implementation will have a more granular cache so that we don't have to expire the entire cache on each new node or comment.