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em.flush(); em.clear(); loosing data and not persisting managed objects

.getTransaction().begin(); for(int i=0;i<Integer.MAX_VALUE;i++) { TestEntity v = new ... .manager] <queryRequest query="SELECT MAX($1.addDate) FROM Notes $1 WHERE $1.addDate IS NOT NULL ... ; <token name="SELECT" code="132" postion="0:6" /> <token name="MAX" code="118

Occasionally slow requests in load testing

" /> <log path="$objectdb/log/" max="8mb" stdout="false" stderr="false" /> <log ... ; <recovery enabled="true" sync="false" path="." max="128mb" /> <recording enabled="false ... cache="8mb" max-threads="400" /> <query-cache results="8mb" programs="500" /> <

virtual servers and one file

, if the max JVM heap size is 8GB the process should be able to use 16GB. If you see I/O READ operations ... ;   <recovery enabled="true" sync="true" path="." max="6mb" />     < ... -check="true" />     <processing cache="256mb" max-threads="40" />  

Replication error on slave restart

goal is to get master server to max uptime. And to use slave server in read-only mode to process ... -history size="50" user="true" password="true" /> <log path="$objectdb/log/" max="8mb ... ="256kb" resize="256kb" page="2kb" /> <recovery enabled="false" sync="false" path="." max


JPA 2 JavaDoc Reference Documentation - Used to construct criteria queries, compound selections, expressions, predicates, orderings.


the query object was set to retrieve. Returns Integer.MAX_VALUE


.MAX_VALUE if setMaxResults was not applied to the query object


number of results the query object was set to retrieve. Returns Integer.MAX_VALUE

setRange(fromIncl, toExcl)

> toExcl - 0-based exclusive end index, or Long.MAX_VALUE


JDO JavaDoc Reference Documentation - The Query interface allows applications to obtain persistent instances, values, and aggregate data from the data store.