I want to use jni version of levelDB since I heard it's stable.I change the indexFactory as follow: <broker brokerName="broker" ... > ... <persistenceAdapter> <levelDB directory="activemq-data" indexFactory="org.fusesource.leveldbjni.JniDBFactory"/> </persistenceAdapter> ... </broker>
Unfortunately it did not work out. The broker shutdown automatically. There is an error in activemq.log: Error: indexFactory=Could not load any of the index factory classes : org.fusesource.leveldbjni.jniDBFactory Moreover, I found three other errors/warns that may relates to my problem in log file: Could not stop service:levelDB[D:/apache-activemq-5.8.0/bin/data/levelDB],Reason:java.lang.NullPointerException. Exception thrown from life cycle processor on context close,java.lang.illegalStateException:LifeCycleProcessor not initialized-call "refresh" before invoking lifecycle methods. Failed to stop broker after failure in start. Anyway, since I failed to load jni version of levelDB, I change my configuration back to original, which means no indexFactory property is set and pure java version will be load. However, my broker failed to start this time , the command window prints out the following warning: DB operation failed(entering recovery mode) | org.pache.activemq.leveldb.levelDBClient | main I thought the levelDB is doing some recovery work, so I went home and go to bed. But this morning I found the command window did not print out any new infomation and the broker did not start up normally. I have two questions: 1. Why I can not load jni version of levelDB ? I checked $ACTIVEMQ_HOME/lib/extra , and I found these leveldbjni jar files: activemq-leveldb-store-5.8.0.jar, leveldb-0.5.jar, leveldbjni-1.5.jar, leveldb-api-0.5.jar, leveldbjni-linux32-1.5.jar, leveldbjni-linux64-1.5.jar, leveldbjni-osx-1.5.jar, leveldbjni-win32-1.5.jar, leveldbjni-win64-1.5.jar. It seems all leveldbjni jar files are there . 2. Why my broker failed to start up after I changed my configuration ? How can I start it up and did not lose messages stored ? Thanks for any help in advance! -- View this message in context: http://activemq.2283324.n4.nabble.com/Change-indexFactory-property-of-levelDB-and-the-broker-failed-to-start-tp4673880.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.