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2

EntityManagerFactory Fails To Swtich Over To Slave When Master Is Unavailable

cache="64mb" max-threads="10" />                 cache results="32mb" programs="500 ... " reflection="warning" />                 < cache ref="weak" level2="0" />                                                 cache="64mb" max-threads="10
Issue
2

Out of Memory - Slow leak?

databases are 3 "queue" databases and 3 normal databases). I'm running with the following cache settings: cache="4mb" max-threads="10"/> cache results="4mb" programs="10 ... would be more lightweight but presumably we'd lose any benefits of caching around the metadata as soon as
Forum
2

Replication error on slave restart

" path="." mode="write" /> cache="64mb" max-threads="8" /> cache results="32mb" programs="500" /> < cache ref="weak" level2="0
Forum
2

OutofMemory error with Object DB 2.0

is different. Could you please post your objectdb.conf file? The database cache, which is limited to 64MB ... version-check="true" /> cache="64mb" max-threads="10" /> cache results="32mb ... ="false" reflection="warning" /> < cache ref="weak" level2="0" />
Forum
2

Replication issue, Replayer failing due to NullPointerException.

-check="true" /> cache="64mb" max-threads="10" synchronized="false" /> cache ... > < cache ref="weak" level2="0mb" /> cache="64mb" max-threads="10" synchronized="false
Forum
2

persistence.xml classes not respected by ObjectDB

> cache-mode>NONE cache-mode> NONE com.pingushare.entity.p2.PasswordReset cache-mode>NONE cache ... >    cache-mode>NONE cache-mode>   
Forum
2

locks on pure query activities

could help. Increasing the page cache may help. By running replications of your database on separate disks you may be able to refer read only queries to replicated slaves. we already have a 2GByte page cache ... " /> cache="2048mb" max-threads="48" />
Forum
2

database optimization

cache configuration:    level2="0mb" -> 20 msec query    level2="2mb" -> 10 msec    level2="10mb" -> 40 msec Question: why is a larger level2 cache worse than no level2 cache, ie 10mb worse than 0mb ... cache might be slightly more efficient because keeping objects in memory for longer time has some
Forum
2

First query takes 4+ minutes to complete

cache="256mb" max-threads="10" /> cache results="64mb" programs="50" /> < cache ref="weak" level2="512mb" /> cache before running the query to see if we can reproduce the problem
Forum
2

in-memory and on-disk support?

, with a large memory cache. In addition,  the operating system usually uses free physical memory as cache ... , however your alternative option of larger memory cache may be acceptable. Given I have a fixed DB size ... also that ObjectDB uses JVM heap for the cache - a very large cache (40GB) has not been tested yet. Starting