It seems the repository.xml file hasn't been sent with my last email.
Here it is.
Paul.
> From: [email protected]
> To: [email protected]
> Subject: Using JackRabbit on a server with high traffic
> Date: Wed, 28 Oct 2009 13:53:26 +0100
>
> Hello,
>
> I wanted to know if some of you are using JackRabbit on a server
> used by many users (about 35 single users per minute).
> I am currently getting
> problems on my application because it seems JackRabbit doesn't respond
> quickly
> enough.
> Is JackRabbit supposed to be working with
> high traffic, or should it only be used as a kind of
> datawarehouse?
>
> Moreover, if it indeed can handle many connections at the
> same time, what could explain the bottleneck that comes from JackRabbit?
> Having
> had a look at the source code, I am wondering whether the synchronized
> methods
> in the
> org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager
>
> class aren't causing our problems. As far as I have looked, it seems only one
> user can access the repository at a time (this seems very strange!). Am I
> right?
> If yes, does someone know why it behaves that way?
>
> I was also wondering if changing the locking policy could be a good
> idea: our application on the server only reads content in JackRabbit (the
> content is written into the repository via a separate batch, so there is no
> need
> to synchronize read / write outside the batch). Do you think I could improve
> performances by only giving a "fake" lock that doesn't lock anything when we
> try
> to read content in the repository?
>
> Last question: it is possible to specify a cache size in the
> org.apache.jackrabbit.core.persistence.bundle.OraclePersistenceManager (see
> the attached jackrabbit-repository.xml file). Is
> it a cache of objects fetched from the repository? or does it cache
> something else instead? Why do we need to give a max amount of memory to use,
> instead of giving a max number of objects in the cache? (like ehcache
> does)
>
> The application is running on a WebLogic server and all content is stored
> into an Oracle database.
>
> I also added our repository configuration file to this email (we are using a
> 1.6 patched version of JackRabbit).
>
>
> Any help will be greatly appreciated!
> Thank you very much.
>
> Kind
> regards,
> Paul.
_________________________________________________________________
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http://clk.atdmt.com/FRM/go/181574580/direct/01/<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE Repository PUBLIC "-//The Apache Software Foundation//DTD Jackrabbit 1.5//EN" "http://jackrabbit.apache.org/dtd/repository-1.5.dtd";>
<Repository>
<DataStore class="org.apache.jackrabbit.core.data.db.DbDataStore">
<param name="driver" value="javax.naming.InitialContext" />
<param name="url" value="jdbc/jackrabbit" />
<param name="databaseType" value="oracle" />
</DataStore>
<FileSystem class="org.apache.jackrabbit.core.fs.db.OracleFileSystem">
<param name="driver" value="javax.naming.InitialContext" />
<param name="url" value="jdbc/jackrabbit" />
<param name="schema" value="oracle" />
<param name="schemaObjectPrefix" value="J_R_FS_" />
</FileSystem>
<Security appName="Jackrabbit">
<SecurityManager class="org.apache.jackrabbit.core.security.simple.SimpleSecurityManager" workspaceName="security" />
<AccessManager class="org.apache.jackrabbit.core.security.SimpleAccessManager" />
<LoginModule class="my.company.jackrabbit.core.security.DBLoginModule">
<param name="dataSourceJNDIName" value="jdbc/data" />
<param name="sqlQuery" value="select LOGIN, PASSWORD from JACK_USER" />
</LoginModule>
</Security>
<Workspaces rootPath="${rep.home}/workspaces" defaultWorkspace="default" />
<Workspace name="${wsp.name}">
<FileSystem class="org.apache.jackrabbit.core.fs.db.OracleFileSystem">
<param name="driver" value="javax.naming.InitialContext" />
<param name="url" value="jdbc/jackrabbit" />
<param name="schema" value="oracle" />
<param name="schemaObjectPrefix" value="J_FS_${wsp.name}_" />
</FileSystem>
<PersistenceManager class="org.apache.jackrabbit.core.persistence.bundle.OraclePersistenceManager">
<param name="driver" value="javax.naming.InitialContext" />
<param name="url" value="jdbc/jackrabbit" />
<param name="schema" value="oracle" />
<param name="schemaObjectPrefix" value="J_PM_${wsp.name}_" />
<param name="externalBLOBs" value="false" />
</PersistenceManager>
<SearchIndex class="org.apache.jackrabbit.core.query.lucene.SearchIndex">
<param name="path" value="${wsp.home}/index" />
<param name="useCompoundFile" value="true" />
<param name="minMergeDocs" value="100" />
<param name="volatileIdleTime" value="3" />
<param name="maxMergeDocs" value="100000" />
<param name="mergeFactor" value="10" />
<param name="maxFieldLength" value="10000" />
<param name="bufferSize" value="10" />
<param name="cacheSize" value="1000" />
<param name="forceConsistencyCheck" value="false" />
<param name="autoRepair" value="true" />
<param name="analyzer" value="org.apache.lucene.analysis.SimpleAnalyzer" />
<param name="respectDocumentOrder" value="true" />
<param name="resultFetchSize" value="2147483647" />
<param name="extractorPoolSize" value="0" />
<param name="extractorTimeout" value="100" />
<param name="extractorBackLogSize" value="100" />
<param name="indexingConfiguration" value="classpath:jackrabbit/indexing-configuration.xml" />
</SearchIndex>
<ISMLocking class="org.apache.jackrabbit.core.state.FineGrainedISMLocking">
</ISMLocking>
</Workspace>
<Versioning rootPath="${rep.home}/versions">
<FileSystem class="org.apache.jackrabbit.core.fs.db.OracleFileSystem">
<param name="driver" value="javax.naming.InitialContext" />
<param name="url" value="jdbc/jackrabbit" />
<param name="schema" value="oracle" />
<param name="schemaObjectPrefix" value="J_V_FS_" />
</FileSystem>
<PersistenceManager class="org.apache.jackrabbit.core.persistence.bundle.OraclePersistenceManager">
<param name="driver" value="javax.naming.InitialContext" />
<param name="url" value="jdbc/jackrabbit" />
<param name="schema" value="oracle" />
<param name="schemaObjectPrefix" value="J_V_PM_" />
<param name="externalBLOBs" value="false" />
</PersistenceManager>
<ISMLocking class="org.apache.jackrabbit.core.state.FineGrainedISMLocking">
</ISMLocking>
</Versioning>
<SearchIndex class="org.apache.jackrabbit.core.query.lucene.SearchIndex">
<param name="path" value="${rep.home}/repository/index" />
<param name="useCompoundFile" value="true" />
<param name="minMergeDocs" value="100" />
<param name="volatileIdleTime" value="3" />
<param name="maxMergeDocs" value="100000" />
<param name="mergeFactor" value="10" />
<param name="maxFieldLength" value="10000" />
<param name="bufferSize" value="10" />
<param name="cacheSize" value="1000" />
<param name="forceConsistencyCheck" value="false" />
<param name="autoRepair" value="true" />
<param name="analyzer" value="org.apache.lucene.analysis.SimpleAnalyzer" />
<param name="respectDocumentOrder" value="true" />
<param name="resultFetchSize" value="2147483647" />
<param name="extractorPoolSize" value="0" />
<param name="extractorTimeout" value="100" />
<param name="extractorBackLogSize" value="100" />
<param name="indexingConfiguration" value="classpath:jackrabbit/indexing-configuration.xml" />
</SearchIndex>
<Cluster id="node_batch" syncDelay="5">
<Journal class="org.apache.jackrabbit.core.journal.OracleDatabaseJournal">
<param name="revision" value="${rep.home}/revision" />
<param name="driver" value="javax.naming.InitialContext" />
<param name="url" value="jdbc/jackrabbit" />
<param name="schema" value="oracle" />
<param name="schemaObjectPrefix" value="J_C_" />
</Journal>
</Cluster>
</Repository>
