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2
votes
1answer
39 views

How can I identify queries that are producing cache misses in Postgres?

I have a Postgres database with a total data size of 115GB. The server has ~60GB of memory. The index cache hit rate is holding at 99%+ but the table cache hit rate has fallen to ~97%. I am trying ...
2
votes
0answers
70 views

Stored Procedure slow after weekend

When I come to work on monday some stored procedures take several minutes to execute and STATISTICS IO shows a lot of PHYSICAL READS and READ AHEADS going on. However, after running the procedures ...
2
votes
0answers
220 views

Multithreading caching in SQL CLR

Is there any mechanism available to a SQLCLR assembly for caching that will still work when the assembly is registered as "safe"? The cache needs to be thread-safe, so it can be shared by multiple ...
1
vote
0answers
39 views

Flush procedure cache or drop and create?

Okay I had a very strange issue today on SQL Server 2005. We had a stored procedure update that added new parameters to part of it. One database out of ~150 or more seem to not work properly. Using ...
1
vote
0answers
45 views

mysql vs mongodb cache/load balancing

I have a system where users can 'like' content. There will likely be many hundreds of these likes going on at once. I'd like it to be AJAX driven so you get an immediate response. At the moment I ...
1
vote
0answers
467 views

SELECT + INSERT + Query Cache = MySQL lock up

MySQL server seems to constantly lock up and stop responding on certain types of queries and eventually (after couple of minutes of not responding) give up with an error "MySQL server has gone away", ...
0
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0answers
24 views

Database cache problem

I have server based on Linux 64 Bit centos 6.5 and Mysql innoDB engine I created database for php script require database installation , after i successfully finished installation for first time i ...
0
votes
0answers
59 views

Caching data with MySQL and asp.net 2.0

I want to cache frequently used data. Is there simplest way to do this with asp.net itself? I am using framework 2.0. If i do this with MySQL technique how about innodb?? will this allow me to cache ...
0
votes
0answers
23 views

Should store procedures be cached?

Should store procedures be cached in MySQL? If so, How long it is stay in cache? In my case, When I call one stored procedure first time, it is giving me results in 1 second, after that it gives me ...
0
votes
0answers
119 views

Req: Typical location of mysql query cache

My MVC framework (CodeIgniter) wants to know where my database (mysql 5.5) writes its query cache. My Ubuntu installation is unexceptional. Would that be /var/lib/mysql/ or further down the chain, ...
0
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0answers
353 views

Temporarly disable cache in oracle 11g

I want to disable the caching for my session in oracle 11g to see how long a query takes. Is this possible or is there a better way for meassuring the time a query takes to run?