Hi Chandra, Thanks for your reply. Well I have added both jna.jar and platform.jar to my lib directory (jna 3.3.0):
[root@cassandra-node01 cassandrahome]# ls -l lib/jna.jar lib/platform.jar -rw-r--r-- 1 root root 865400 Jan 29 12:14 lib/jna.jar -rw-r--r-- 1 root root 841291 Jan 29 12:14 lib/platform.jar But sadly I get the same result: [root@cassandra-node01 cassandrahome]# ./bin/cassandra -f xss = -ea -javaagent:/etc/alternatives/cassandrahome/lib/jamm-0.2.5.jar -XX:+UseThreadPriorities -XX:ThreadPriorityPolicy=42 -Xms295M -Xmx295M -Xmn73M -XX:+HeapDumpOnOutOfMemoryError -Xss180k INFO 12:14:52,493 Logging initialized INFO 12:14:52,507 JVM vendor/version: Java HotSpot(TM) 64-Bit Server VM/1.6.0_34 INFO 12:14:52,507 Heap size: 301727744/302776320 INFO 12:14:52,508 Classpath: /etc/alternatives/cassandrahome/conf:/etc/alternatives/cassandrahome/build/classes/main:/etc/alternatives/cassandrahome/build/classes/thrift:/etc/alternatives/cassandrahome/lib/antlr-3.2.jar:/etc/alternatives/cassandrahome/lib/apache-cassandra-1.2.1.jar:/etc/alternatives/cassandrahome/lib/apache-cassandra-clientutil-1.2.1.jar:/etc/alternatives/cassandrahome/lib/apache-cassandra-thrift-1.2.1.jar:/etc/alternatives/cassandrahome/lib/avro-1.4.0-fixes.jar:/etc/alternatives/cassandrahome/lib/avro-1.4.0-sources-fixes.jar:/etc/alternatives/cassandrahome/lib/commons-cli-1.1.jar:/etc/alternatives/cassandrahome/lib/commons-codec-1.2.jar:/etc/alternatives/cassandrahome/lib/commons-lang-2.6.jar:/etc/alternatives/cassandrahome/lib/compress-lzf-0.8.4.jar:/etc/alternatives/cassandrahome/lib/concurrentlinkedhashmap-lru-1.3.jar:/etc/alternatives/cassandrahome/lib/guava-13.0.1.jar:/etc/alternatives/cassandrahome/lib/high-scale-lib-1.1.2.jar:/etc/alternatives/cassandrahome/lib/jackson-core-asl-1.9.2.jar:/etc/alternatives/cassandrahome/lib/jackson-mapper-asl-1.9.2.jar:/etc/alternatives/cassandrahome/lib/jamm-0.2.5.jar:/etc/alternatives/cassandrahome/lib/jline-1.0.jar:/etc/alternatives/cassandrahome/lib/jna.jar:/etc/alternatives/cassandrahome/lib/json-simple-1.1.jar:/etc/alternatives/cassandrahome/lib/libthrift-0.7.0.jar:/etc/alternatives/cassandrahome/lib/log4j-1.2.16.jar:/etc/alternatives/cassandrahome/lib/metrics-core-2.0.3.jar:/etc/alternatives/cassandrahome/lib/netty-3.5.9.Final.jar:/etc/alternatives/cassandrahome/lib/platform.jar:/etc/alternatives/cassandrahome/lib/servlet-api-2.5-20081211.jar:/etc/alternatives/cassandrahome/lib/slf4j-api-1.7.2.jar:/etc/alternatives/cassandrahome/lib/slf4j-log4j12-1.7.2.jar:/etc/alternatives/cassandrahome/lib/snakeyaml-1.6.jar:/etc/alternatives/cassandrahome/lib/snappy-java-1.0.4.1.jar:/etc/alternatives/cassandrahome/lib/snaptree-0.1.jar:/etc/alternatives/cassandrahome/lib/jamm-0.2.5.jar Killed And still when I remove those library files cassandra starts without a problem exception the fact that it is not able to use JNA. I'd appreciate any input the list might have. Thanks Tim On Tue, Jan 29, 2013 at 8:54 AM, chandra Varahala < hadoopandcassan...@gmail.com> wrote: > I think you need Jna jar and jna-plaform jar in cassandra lib folder > > -chandra > > > > On Mon, Jan 28, 2013 at 10:02 PM, Tim Dunphy <bluethu...@gmail.com> wrote: > >> I went to github to try to download jna again. I downloaded version 3.5.1 >> >> [root@cassandra-node01 cassandrahome]# ls -l lib/jna-3.5.1.jar >> -rw-r--r-- 1 root root 692603 Jan 28 21:57 lib/jna-3.5.1.jar >> >> I noticed in the datastax docs that java 7 was not recommended so I >> downgraded to java 6 >> >> [root@cassandra-node01 cassandrahome]# java -version >> java version "1.6.0_34" >> Java(TM) SE Runtime Environment (build 1.6.0_34-b04) >> Java HotSpot(TM) 64-Bit Server VM (build 20.9-b04, mixed mode) >> >> And now if I try to start cassandra with that library it fails with this >> message: >> >> [root@cassandra-node01 cassandrahome]# ./bin/cassandra -f >> xss = -ea -javaagent:/etc/alternatives/cassandrahome/lib/jamm-0.2.5.jar >> -XX:+UseThreadPriorities -XX:ThreadPriorityPolicy=42 -Xms295M -Xmx295M >> -Xmn73M -XX:+HeapDumpOnOutOfMemoryError -Xss180k >> INFO 22:00:14,318 Logging initialized >> INFO 22:00:14,333 JVM vendor/version: Java HotSpot(TM) 64-Bit Server >> VM/1.6.0_34 >> INFO 22:00:14,334 Heap size: 301727744/302776320 >> INFO 22:00:14,334 Classpath: >> /etc/alternatives/cassandrahome/conf:/etc/alternatives/cassandrahome/build/classes/main:/etc/alternatives/cassandrahome/build/classes/thrift:/etc/alternatives/cassandrahome/lib/antlr-3.2.jar:/etc/alternatives/cassandrahome/lib/apache-cassandra-1.2.1.jar:/etc/alternatives/cassandrahome/lib/apache-cassandra-clientutil-1.2.1.jar:/etc/alternatives/cassandrahome/lib/apache-cassandra-thrift-1.2.1.jar:/etc/alternatives/cassandrahome/lib/avro-1.4.0-fixes.jar:/etc/alternatives/cassandrahome/lib/avro-1.4.0-sources-fixes.jar:/etc/alternatives/cassandrahome/lib/commons-cli-1.1.jar:/etc/alternatives/cassandrahome/lib/commons-codec-1.2.jar:/etc/alternatives/cassandrahome/lib/commons-lang-2.6.jar:/etc/alternatives/cassandrahome/lib/compress-lzf-0.8.4.jar:/etc/alternatives/cassandrahome/lib/concurrentlinkedhashmap-lru-1.3.jar:/etc/alternatives/cassandrahome/lib/guava-13.0.1.jar:/etc/alternatives/cassandrahome/lib/high-scale-lib-1.1.2.jar:/etc/alternatives/cassandrahome/lib/jackson-core-asl-1.9.2.jar:/etc/alternatives/cassandrahome/lib/jackson-mapper-asl-1.9.2.jar:/etc/alternatives/cassandrahome/lib/jamm-0.2.5.jar:/etc/alternatives/cassandrahome/lib/jline-1.0.jar:/etc/alternatives/cassandrahome/lib/jna-3.5.1.jar:/etc/alternatives/cassandrahome/lib/json-simple-1.1.jar:/etc/alternatives/cassandrahome/lib/libthrift-0.7.0.jar:/etc/alternatives/cassandrahome/lib/log4j-1.2.16.jar:/etc/alternatives/cassandrahome/lib/metrics-core-2.0.3.jar:/etc/alternatives/cassandrahome/lib/netty-3.5.9.Final.jar:/etc/alternatives/cassandrahome/lib/servlet-api-2.5-20081211.jar:/etc/alternatives/cassandrahome/lib/slf4j-api-1.7.2.jar:/etc/alternatives/cassandrahome/lib/slf4j-log4j12-1.7.2.jar:/etc/alternatives/cassandrahome/lib/snakeyaml-1.6.jar:/etc/alternatives/cassandrahome/lib/snappy-java-1.0.4.1.jar:/etc/alternatives/cassandrahome/lib/snaptree-0.1.jar:/etc/alternatives/cassandrahome/lib/jamm-0.2.5.jar >> Killed >> >> I move the library back out of the lib directory and cassandra starts >> again albeit without JNA working quite naturally. >> >> >> Both my cassandra and java installs are tarball installs. >> >> Thanks >> Tim >> >> >> On Mon, Jan 28, 2013 at 6:29 PM, Tim Dunphy <bluethu...@gmail.com> wrote: >> >>> Hey List, >>> >>> I just downloaded 1.21 and have set it up across my cluster. When I >>> noticed the following notice: >>> >>> INFO 18:14:53,828 JNA not found. Native methods will be disabled. >>> >>> So I downloaded jna.jar from git hub and moved it to the cassandra /lib >>> directory. I changed mod to 755 as per the datastax docs. I've also tried >>> installing the jna package (via yum, I am using centos 6.2). Nothing seems >>> to do the trick, I keep getting this message. What can I do to get >>> cassandra 1.2.1 to recognize JNA? >>> >>> Thanks >>> Tim >>> -- >>> GPG me!! >>> >>> gpg --keyserver pool.sks-keyservers.net --recv-keys F186197B >>> >>> >> >> >> -- >> GPG me!! >> >> gpg --keyserver pool.sks-keyservers.net --recv-keys F186197B >> >> > -- GPG me!! gpg --keyserver pool.sks-keyservers.net --recv-keys F186197B
