http://www.datastax.com/support-forums/topic/failed-to-load-class-orgslf4jimplstaticloggerbinder Software, Support, and Training for Apache Cassandra en-US Sun, 19 May 2013 17:14:59 +0000 http://bbpress.org/?v=1.0.3 q http://www.datastax.com/support-forums/search.php http://www.datastax.com/support-forums/topic/failed-to-load-class-orgslf4jimplstaticloggerbinder#post-351 Tue, 26 Jul 2011 17:50:14 +0000 joaquin 351@http://www.datastax.com/support-forums/ <p>What version of Cassandra are you using and how was this installed?</p> <p>Thanks,<br /> Joaquin </p> http://www.datastax.com/support-forums/topic/failed-to-load-class-orgslf4jimplstaticloggerbinder#post-321 Fri, 22 Jul 2011 10:43:50 +0000 Van 321@http://www.datastax.com/support-forums/ <p>./cassandra-cli -host $cassandra_IP -port 9160</p> <p>SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".<br /> SLF4J: Defaulting to no-operation (NOP) logger implementation<br /> SLF4J: See <a href="http://www.slf4j.org/codes.html#StaticLoggerBinder" rel="nofollow">http://www.slf4j.org/codes.html#StaticLoggerBinder</a> for further details.</p> <p>Connected to: "BriskTest" on 10.32.29.77/9160<br /> Welcome to the Cassandra CLI.</p> <p>Type 'help;' or '?' for help.<br /> Type 'quit;' or 'exit;' to quit.</p> <p>[default@unknown]</p> <p>so, I add the slf4j-log4j12-1.6.1.jar file to cassandra/lib.<br /> And run<br /> ./cassandra-cli -host $cassandra_IP -port 9160</p> <p>Failed to instantiate SLF4J LoggerFactory<br /> Reported exception:<br /> java.lang.NoClassDefFoundError: org/apache/log4j/Level<br /> at org.slf4j.LoggerFactory.bind(LoggerFactory.java:121)<br /> at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:111)<br /> at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:268)<br /> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:241)<br /> at org.apache.thrift.transport.TIOStreamTransport.&lt;clinit&gt;(TIOStreamTransport.java:38)<br /> at org.apache.cassandra.cli.CliMain.connect(CliMain.java:60)<br /> at org.apache.cassandra.cli.CliMain.main(CliMain.java:253)<br /> Caused by: java.lang.ClassNotFoundException: org.apache.log4j.Level<br /> at java.net.URLClassLoader$1.run(URLClassLoader.java:202)<br /> at java.security.AccessController.doPrivileged(Native Method)<br /> at java.net.URLClassLoader.findClass(URLClassLoader.java:190)<br /> at java.lang.ClassLoader.loadClass(ClassLoader.java:306)<br /> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)<br /> at java.lang.ClassLoader.loadClass(ClassLoader.java:247)<br /> ... 7 more<br /> Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/log4j/Level<br /> at org.slf4j.LoggerFactory.bind(LoggerFactory.java:121)<br /> at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:111)<br /> at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:268)<br /> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:241)<br /> at org.apache.thrift.transport.TIOStreamTransport.&lt;clinit&gt;(TIOStreamTransport.java:38)<br /> at org.apache.cassandra.cli.CliMain.connect(CliMain.java:60)<br /> at org.apache.cassandra.cli.CliMain.main(CliMain.java:253)<br /> Caused by: java.lang.ClassNotFoundException: org.apache.log4j.Level<br /> at java.net.URLClassLoader$1.run(URLClassLoader.java:202)<br /> at java.security.AccessController.doPrivileged(Native Method)<br /> at java.net.URLClassLoader.findClass(URLClassLoader.java:190)<br /> at java.lang.ClassLoader.loadClass(ClassLoader.java:306)<br /> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)<br /> at java.lang.ClassLoader.loadClass(ClassLoader.java:247)<br /> ... 7 more</p> <p>I can't into cassandra-cli.<br /> Why? </p>