DataStax Support Forums » Topic: JNA not found with jna.jar in libs directory

DataStax Support Forums » Topic: JNA not found with jna.jar in libs directory http://www.datastax.com/support-forums/topic/jna-not-found-with-jnajar-in-libs-directory Software, Support, and Training for Apache Cassandra en-US Sat, 18 May 2013 19:31:24 +0000 http://bbpress.org/?v=1.0.3 <![CDATA[Search]]> q http://www.datastax.com/support-forums/search.php bluethundr on "JNA not found with jna.jar in libs directory" http://www.datastax.com/support-forums/topic/jna-not-found-with-jnajar-in-libs-directory#post-9047 Sat, 16 Feb 2013 20:14:49 +0000 bluethundr 9047@http://www.datastax.com/support-forums/ Dude. I was having the EXACT same problem you were having. Pulling out my hair over it. This is how I solved it. At the operating system level. <pre><code>[root@cassandra-node01 cassandrahome]# yum provides "*/jna.jar" jna-3.2.4-2.el6.x86_64 : Pure Java access to native libraries Repo : base Matched from: Filename : /usr/share/java/jna.jar</code></pre> <code>[root@cassandra-node01 cassandrahome]# yum install jna-3.2.4-2.el6.x86_64</code> <code>[root@cassandra-node01 cassandrahome]# ln -s /usr/share/java/jna.jar /usr/local/apache-cassandra-1.2.1/lib/jna.jar</code> And now, my friend, life is beautiful! Upon ./bin/cassandra -f <code>INFO 15:12:28,609 JNA mlockall successful</code> :) I see this is an old thread. Wish I could have been there for you when you were having this problem. If you still haven't figured this out by now I hope this helps you or someone else who needs it. Anonymous on "JNA not found with jna.jar in libs directory" http://www.datastax.com/support-forums/topic/jna-not-found-with-jnajar-in-libs-directory#post-2266 Thu, 21 Jun 2012 09:48:31 +0000 Anonymous 2266@http://www.datastax.com/support-forums/ I just tried creating the /usr/share/java directory and placing jna.jar there, but the same error is still being shown. Anonymous on "JNA not found with jna.jar in libs directory" http://www.datastax.com/support-forums/topic/jna-not-found-with-jnajar-in-libs-directory#post-2258 Thu, 21 Jun 2012 08:31:55 +0000 Anonymous 2258@http://www.datastax.com/support-forums/ This comes from Hadoop, not Cassandra, so if you insist on putting it into some DSE libraries, you should put it into hadoop/lib. But, I recommend putting JNA into /usr/share/java, so that all applications can use it. This is also where it gets installed if you install JNA from package. Anonymous on "JNA not found with jna.jar in libs directory" http://www.datastax.com/support-forums/topic/jna-not-found-with-jnajar-in-libs-directory#post-2257 Thu, 21 Jun 2012 08:25:31 +0000 Anonymous 2257@http://www.datastax.com/support-forums/ Also, here is the output from starting Cassandra: INFO 13:51:06,108 JVM vendor/version: Java HotSpot(TM) 64-Bit Server VM/1.6.0_25 INFO 13:51:06,109 Heap size: 8342470656/8342470656 INFO 13:51:06,109 Classpath: bin/../conf:bin/../build/classes/main:bin/../build/classes/thrift:bin/../lib/antlr-3.2.jar:bin/../lib/apache-cassandra-1.1.0.jar:bin/../lib/apache-cassandra-clientutil-1.1.0.jar:bin/../lib/apache-cassandra-thrift-1.1.0.jar:bin/../lib/avro-1.4.0-fixes.jar:bin/../lib/avro-1.4.0-sources-fixes.jar:bin/../lib/commons-cli-1.1.jar:bin/../lib/commons-codec-1.2.jar:bin/../lib/commons-lang-2.4.jar:bin/../lib/compress-lzf-0.8.4.jar:bin/../lib/concurrentlinkedhashmap-lru-1.2.jar:bin/../lib/guava-r08.jar:bin/../lib/high-scale-lib-1.1.2.jar:bin/../lib/jackson-core-asl-1.9.2.jar:bin/../lib/jackson-mapper-asl-1.9.2.jar:bin/../lib/jamm-0.2.5.jar:bin/../lib/jline-0.9.94.jar:bin/../lib/jna.jar:bin/../lib/json-simple-1.1.jar:bin/../lib/libthrift-0.7.0.jar:bin/../lib/log4j-1.2.16.jar:bin/../lib/metrics-core-2.0.3.jar:bin/../lib/servlet-api-2.5-20081211.jar:bin/../lib/slf4j-api-1.6.1.jar:bin/../lib/slf4j-log4j12-1.6.1.jar:bin/../lib/snakeyaml-1.6.jar:bin/../lib/snappy-java-1.0.4.1.jar:bin/../lib/snaptree-0.1.jar:bin/../lib/jamm-0.2.5.jar INFO 13:51:06,110 JNA not found. Native methods will be disabled. INFO 13:51:06,116 Loading settings from file:/root/dsc-cassandra-1.1.0/conf/cassandra.yaml INFO 13:51:06,191 DiskAccessMode 'auto' determined to be mmap, indexAccessMode is mmap INFO 13:51:06,310 Global memtable threshold is enabled at 2652MB INFO 13:51:06,389 Initializing key cache with capacity of 100 MBs. INFO 13:51:06,396 Scheduling key cache save to each 14400 seconds (going to save all keys). INFO 13:51:06,397 Initializing row cache with capacity of 0 MBs and provider org.apache.cassandra.cache.SerializingCacheProvider INFO 13:51:06,399 Scheduling row cache save to each 0 seconds (going to save all keys). INFO 13:51:06,449 Opening /var/lib/cassandra/data/system/LocationInfo/system-LocationInfo-hc-2 (163 bytes) INFO 13:51:06,449 Opening /var/lib/cassandra/data/system/LocationInfo/system-LocationInfo-hc-1 (234 bytes) INFO 13:51:06,478 Couldn't detect any schema definitions in local storage. INFO 13:51:06,478 Found table data in data directories. Consider using the CLI to define your schema. INFO 13:51:06,490 completed pre-loading (2 keys) key cache. INFO 13:51:06,599 Replaying /var/lib/cassandra/commitlog/CommitLog-432104970661.log, /var/lib/cassandra/commitlog/CommitLog-432001484482.log INFO 13:51:06,600 Replaying /var/lib/cassandra/commitlog/CommitLog-432104970661.log INFO 13:51:06,600 Finished reading /var/lib/cassandra/commitlog/CommitLog-432104970661.log INFO 13:51:06,600 Replaying /var/lib/cassandra/commitlog/CommitLog-432001484482.log INFO 13:51:06,612 Finished reading /var/lib/cassandra/commitlog/CommitLog-432001484482.log INFO 13:51:06,685 Enqueuing flush of Memtable-Versions@1729398275(83/103 serialized/live bytes, 3 ops) INFO 13:51:06,686 Writing Memtable-Versions@1729398275(83/103 serialized/live bytes, 3 ops) INFO 13:51:06,861 Completed flushing /var/lib/cassandra/data/system/Versions/system-Versions-hc-1-Data.db (247 bytes) INFO 13:51:06,867 Log replay complete, 3 replayed mutations INFO 13:51:06,874 Cassandra version: 1.1.0 INFO 13:51:06,875 Thrift API version: 19.30.0 INFO 13:51:06,877 CQL supported versions: 2.0.0,3.0.0-beta1 (default: 2.0.0) INFO 13:51:06,904 Loading persisted ring state INFO 13:51:06,905 Starting up server gossip INFO 13:51:06,911 Enqueuing flush of Memtable-LocationInfo@413918804(29/36 serialized/live bytes, 1 ops) INFO 13:51:06,911 Writing Memtable-LocationInfo@413918804(29/36 serialized/live bytes, 1 ops) INFO 13:51:07,068 Completed flushing /var/lib/cassandra/data/system/LocationInfo/system-LocationInfo-hc-3-Data.db (80 bytes) INFO 13:51:07,075 Starting Messaging Service on port 7000 INFO 13:51:07,079 Using saved token 164986434265921019703539854051593357886 INFO 13:51:07,080 Enqueuing flush of Memtable-LocationInfo@1145105632(53/66 serialized/live bytes, 2 ops) INFO 13:51:07,081 Writing Memtable-LocationInfo@1145105632(53/66 serialized/live bytes, 2 ops) INFO 13:51:07,219 Completed flushing /var/lib/cassandra/data/system/LocationInfo/system-LocationInfo-hc-4-Data.db (163 bytes) INFO 13:51:07,220 Node localhost/127.0.0.1 state jump to normal INFO 13:51:07,221 Bootstrap/Replace/Move completed! Now serving reads. INFO 13:51:07,222 Will not load MX4J, mx4j-tools.jar is not in the classpath Anonymous on "JNA not found with jna.jar in libs directory" http://www.datastax.com/support-forums/topic/jna-not-found-with-jnajar-in-libs-directory#post-2256 Thu, 21 Jun 2012 08:24:54 +0000 Anonymous 2256@http://www.datastax.com/support-forums/ I'm having some difficulty with a tarball install on a CentOS 6.2 minimal system. After placing jna.jar in the cassandra's lib directory, I'm receiving the following error: JNA not found. Native methods will be disabled. I'm starting with a completely fresh OS minimal install. For the sake of completeness I'll show here all the commands I use to install (note that java install is not shown). Thank you, Daniel -------- INSTALL ------------------ # Install DataStax and OPSCenter curl -OL <a href="http://downloads.datastax.com/community/dsc.tar.gz" rel="nofollow">http://downloads.datastax.com/community/dsc.tar.gz</a> curl -OL <a href="http://downloads.datastax.com/community/opscenter.tar.gz" rel="nofollow">http://downloads.datastax.com/community/opscenter.tar.gz</a> tar -xzvf dsc.tar.gz tar -xzvf opscenter.tar.gz # jna cd ~/dsc-cassandra-1.1.0/lib wget <a href="https://github.com/twall/jna/blob/3.4.1/dist/jna.jar" rel="nofollow">https://github.com/twall/jna/blob/3.4.1/dist/jna.jar</a> nano /etc/security/limits.conf ### cassandra soft memlock unlimited cassandra hard memlock unlimited root soft memlock unlimited root hard memlock unlimited ### # start cassandra cd ~/dsc-cassandra-1.1.0 bin/cassandra