Maurizio Mauri [http://community.jboss.org/people/maurizio.mercatis] created the discussion "Index on JDBCCacheLoader" To view the discussion, visit: http://community.jboss.org/message/587257#587257 -------------------------------------------------------------- Hi everybody!! I have developed a cache component to support a web application with JBossCache and it works fine. I have chosen a JDBCCacheLoader to deal with persistence activities. Now for a particular reason I have to schedule a task (during the night) that perform some activities on my contents tree. To visit all my nodes I have set up a recursive function that perform this instruction "node.getChildren()" but it seems quite slow with lots of entries. I have placed an index on "FQN_parent" column to improve the performance and I have observed a great improvement (about 100 time). Considering that JDBC retrieve metadata about index could it be a good idea to support this kind of activities? <loader class="org.jboss.cache.loader.JDBCCacheLoader" async="false" fetchPersistentState="true" ignoreModifications="false" purgeOnStartup="false">           <properties>                     cache.jdbc.table.name=jbosscache                     cache.jdbc.table.create=true                     cache.jdbc.table.drop=true                     cache.jdbc.table.primarykey=jbosscache_pk    <!-- cache.jdbc.table.index=ix_jbosscache -->                     cache.jdbc.fqn.column=fqn                     cache.jdbc.fqn.type=VARCHAR(255)                     cache.jdbc.node.column=node                     cache.jdbc.node.type=BLOB                     cache.jdbc.parent.column=parent                     cache.jdbc.driver=oracle.jdbc.OracleDriver                     cache.jdbc.url=jdbc:oracle:thin:@localhost:1521:JBOSSDB                     cache.jdbc.user=SCOTT                     cache.jdbc.password=TIGER           </properties> </loader> -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/587257#587257] Start a new discussion in JBoss Cache at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]