与Jackrabbit聚类 [英] Clustering with Jackrabbit

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问题描述

我将开始集群社区版本中由 hippocms 运行的jackrabbit存储库。我已经启动并运行它，但是我不理解其中的某些配置。

I am about to get started with clustering a jackrabbit repository run by hippocms in the community version. I got it up and running but some parts of configuration I don't understand.

我这样理解集群的概念：您有例如两个带有两个本地存储库的实例，这些实例由火箭科学期刊通过共享数据库进行同步，但是每个节点都在使用它的本地存储库。

I understood the concept of clustering jackrabbit this way: You have e.g. two instances with two local repositories which get synched by a rocket-scienced journal via a shared database, but every node is using it's local repository.

阅读以下页面后，我得到了以下配置。

After reading the following pages I ended up with the following configuration.

链接：

  • http://wiki.apache.org/jackrabbit/Clustering
  • http://svn.apache.org/viewvc/jackrabbit/trunk/jackrabbit-core/src/test/resources/org/apache/jackrabbit/core/cluster/repository-h2.xml?view=co&content-type=text/plain
  • http://greymeister.net/blog/2011/11/28/jackrabbit-clustering-primer.html

信息：
sharedRepositoryDS 指向共享数据库
repositoryDS 指向本地数据库（在每个节点上）

Info: sharedRepositoryDS points to a shared database repositoryDS points to the local database (on each node)

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE Repository PUBLIC
        "-//The Apache Software Foundation//DTD Jackrabbit 1.5//EN"
        "http://jackrabbit.apache.org/dtd/repository-1.5.dtd">

<Repository>

    <FileSystem class="org.apache.jackrabbit.core.fs.db.DbFileSystem">
        <param name="url" value="java:comp/env/jdbc/sharedRepositoryDS"/>
        <param name="driver" value="javax.naming.InitialContext"/>
        <param name="schemaObjectPrefix" value="repository_"/>
        <param name="schema" value="mysql"/>
    </FileSystem>

    <Security appName="Jackrabbit">
        <SecurityManager
                class="org.hippoecm.repository.security.SecurityManager"/>
        <AccessManager
                class="org.hippoecm.repository.security.HippoAccessManager"/>
        <LoginModule
                class="org.hippoecm.repository.security.HippoLoginModule"/>
    </Security>

    <Workspaces rootPath="${rep.home}/workspaces" defaultWorkspace="default"/>

    <Workspace name="${wsp.name}">
        <FileSystem class="org.apache.jackrabbit.core.fs.db.DbFileSystem">
            <param name="url" value="java:comp/env/jdbc/repositoryDS"/>
            <param name="driver" value="javax.naming.InitialContext"/>
            <param name="schemaObjectPrefix" value="${wsp.name}_"/>
            <param name="schema" value="mysql"/>
        </FileSystem>

        <PersistenceManager
                class="org.apache.jackrabbit.core.persistence.bundle.MySqlPersistenceManager">
            <param name="driver" value="javax.naming.InitialContext"/>
            <param name="url" value="java:comp/env/jdbc/sharedRepositoryDS"/>
            <param name="schemaObjectPrefix" value="${wsp.name}_"/>
            <param name="externalBLOBs" value="true"/>
            <param name="consistencyCheck" value="false"/>
            <param name="consistencyFix" value="false"/>
        </PersistenceManager>

        <SearchIndex class="org.hippoecm.repository.FacetedNavigationEngineImpl">
            <param name="indexingConfiguration" value="indexing_configuration.xml"/>
            <param name="indexingConfigurationClass"
                   value="org.hippoecm.repository.query.lucene.ServicingIndexingConfigurationImpl"/>
            <param name="path" value="${wsp.home}/index"/>
            <param name="useCompoundFile" value="true"/>
            <param name="minMergeDocs" value="1000"/>
            <param name="volatileIdleTime" value="10"/>
            <param name="maxMergeDocs" value="1000000000"/>
            <param name="mergeFactor" value="5"/>
            <param name="maxFieldLength" value="10000"/>
            <param name="bufferSize" value="1000"/>
            <param name="cacheSize" value="100000"/>
            <param name="enableConsistencyCheck" value="true"/>
            <param name="autoRepair" value="true"/>
            <param name="analyzer"
                   value="org.hippoecm.repository.query.lucene.StandardHippoAnalyzer"/>
            <param name="queryClass" value="org.apache.jackrabbit.core.query.QueryImpl"/>
            <param name="respectDocumentOrder" value="false"/>
            <param name="resultFetchSize" value="100"/>
            <param name="extractorPoolSize" value="0"/>
            <param name="extractorTimeout" value="100"/>
            <param name="extractorBackLogSize" value="100"/>
            <param name="excerptProviderClass"
                   value="org.apache.jackrabbit.core.query.lucene.DefaultHTMLExcerpt"/>
            <!-- supportHighlighting value is ignored, see REPO-711 -->
            <param name="supportHighlighting" value="false"/>

            <param name="supportSimilarityOnStrings" value="true"/>
            <param name="supportSimilarityOnBinaries" value="false"/>
            <param name="slowAlwaysExactSizedQueryResult" value="false"/>

            <param name="onWorkspaceInconsistency" value="log"/>
            <!-- optional cache parameters for faceted engine. The default size
            when not configured is 1000 for both parameters -->
            <!-- param name="docIdSetCacheSize" value="1000"/>
            <param name="facetValueCountMapCacheSize" value="1000"/-->
        </SearchIndex>

        <ISMLocking
                class="org.apache.jackrabbit.core.state.FineGrainedISMLocking"/>
    </Workspace>

    <Versioning rootPath="${rep.home}/version">
        <FileSystem class="org.apache.jackrabbit.core.fs.db.DbFileSystem">
            <param name="url" value="java:comp/env/jdbc/repositoryDS"/>
            <param name="driver" value="javax.naming.InitialContext"/>
            <param name="schemaObjectPrefix" value="version_"/>
            <param name="schema" value="mysql"/>
        </FileSystem>

        <PersistenceManager
                class="org.apache.jackrabbit.core.persistence.bundle.MySqlPersistenceManager">
            <param name="driver" value="javax.naming.InitialContext"/>
            <param name="url" value="java:comp/env/jdbc/sharedRepositoryDS"/>
            <param name="schemaObjectPrefix" value="version_"/>
            <param name="externalBLOBs" value="true"/>
            <param name="consistencyCheck" value="false"/>
            <param name="consistencyFix" value="false"/>
        </PersistenceManager>
        <ISMLocking
                class="org.apache.jackrabbit.core.state.FineGrainedISMLocking"/>
    </Versioning>

    <DataStore class="org.apache.jackrabbit.core.data.db.DbDataStore">
        <param name="url" value="java:comp/env/jdbc/sharedRepositoryDS"/>
        <param name="driver" value="javax.naming.InitialContext"/>
        <param name="databaseType" value="mysql"/>
        <param name="minRecordLength" value="1024"/>
        <param name="maxConnections" value="5"/>
        <param name="copyWhenReading" value="true"/>
    </DataStore>

    <Cluster id="node1" syncDelay="2000">
        <Journal class="org.apache.jackrabbit.core.journal.DatabaseJournal">
            <param name="revision" value="${rep.home}/revision.log" />
            <param name="driver" value="javax.naming.InitialContext"/>
            <param name="url" value="java:comp/env/jdbc/sharedRepositoryDS"/>
            <param name="databaseType" value="mysql"/>
            <param name="schemaObjectPrefix" value="journal_"/>
        </Journal>
    </Cluster>
</Repository>

问题：


  1. 配置是否正确？

  2. repository.FileSystem是什么？

  3. repository.Workspace.FileSystem有什么区别？ li>
  4. PersistenceManager负责写入数据，但是为什么要写入共享数据库？ （我想摆脱这个瓶颈吗？）

  1. Is the configuration correct?
  2. What is the repository.FileSystem ?
  3. Whats the difference to the repository.Workspace.FileSystem ?
  4. The PersistenceManager is responsible for writing the data, but why should it write into the shared database? (I want to get rid of this bottleneck right?)

数据库表
这是本地节点数据库的外观（对于我来说有点太少了）：

Database Tables This is what the local node database looks like (for my taste a little too little):

共享数据库如下所示：

This is what the shared database looks like:

推荐答案

对Hippo的集群支持是针对企业版的，最好通过以下方式与我们联系sales@onehippo.com为您的具体案例提供详细的答案。

Clustering support for Hippo is for the enterprise edition and it's best to reach us at sales@onehippo.com for detailed answers for your specific case.

这篇关于与Jackrabbit聚类的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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