DataStax Support Forums » Tag: jna

DataStax Support Forums » Tag: jna - Recent Posts http://www.datastax.com/support-forums/tags/jna Software, Support, and Training for Apache Cassandra en-US Tue, 18 Jun 2013 22:45:19 +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 mbulman on "JNA not in Repo" http://www.datastax.com/support-forums/topic/jna-not-in-repo#post-1862 Mon, 07 May 2012 14:19:03 +0000 mbulman 1862@http://www.datastax.com/support-forums/ rdinoff, that step is needed for RHEL 5.x as well. I'll be sure to get our docs updated. Thanks Anonymous on "JNA not in Repo" http://www.datastax.com/support-forums/topic/jna-not-in-repo#post-1858 Mon, 07 May 2012 07:23:29 +0000 Anonymous 1858@http://www.datastax.com/support-forums/ The best way is to install from repo package, but I don't know if the EPEL repo works also on RHEL. On CentOS 5.8 I had not problems with it. However, if you fail to install from the repo, it is always possible to download the jna.jar 3.4 manually e.g. from here: <a href="https://github.com/twall/jna" rel="nofollow">https://github.com/twall/jna</a> and put it either into /usr/share/java or /usr/share/dse/cassandra/lib. Notes: 1. JNA is not a mandatory dependency to make DSE run. It only allows for improved performance. 2. If JNA is installed properly, you should see "JNA mlockall successfull" message close to the beginning of the system.log. Anonymous on "JNA not in Repo" http://www.datastax.com/support-forums/topic/jna-not-in-repo#post-1854 Sat, 05 May 2012 17:25:20 +0000 Anonymous 1854@http://www.datastax.com/support-forums/ I did not run that command because it stated (CentOS 5.x only) and I am running Redhat. Does this need to be run on redhat also? mbulman on "JNA not in Repo" http://www.datastax.com/support-forums/topic/jna-not-in-repo#post-1839 Thu, 03 May 2012 22:11:28 +0000 mbulman 1839@http://www.datastax.com/support-forums/ These should be available in the EPEL repo mentioned in step 1 here: <a href="http://www.datastax.com/docs/datastax_enterprise2.0/install_dse_packages#installing-datastax-enterprise-rhel-or-centos-packages" rel="nofollow">http://www.datastax.com/docs/datastax_enterprise2.0/install_dse_packages#installing-datastax-enterprise-rhel-or-centos-packages</a> Anonymous on "JNA not in Repo" http://www.datastax.com/support-forums/topic/jna-not-in-repo#post-1837 Thu, 03 May 2012 22:00:56 +0000 Anonymous 1837@http://www.datastax.com/support-forums/ In Installing DataStax Enterprise RHEL or CentOS Packages Step 4 of The installation instructions state 4. (Optional) Install JNA: <code> # yum install jna </code> Unfortunately jna is not in the repo: <code> # cat /etc/yum.repos.d/datastax.repo [datastax] name= DataStax Repo for Apache Cassandra baseurl=http://<username>:<password>@rpm.datastax.com/enterprise # username and password removed enabled=1 gpgcheck=0 # yum install jna Setting up Install Process No package jna available. Nothing to do #yum list available *jna* Error: No matching Packages to list </code> It would also be nice if all the other dependencies for dse-full were in the repo (i.e. python2.6 and its dependancies) thanks, Rob Anonymous on "No command 'dse' found" http://www.datastax.com/support-forums/topic/no-command-dse-found#post-673 Mon, 14 Nov 2011 21:18:31 +0000 Anonymous 673@http://www.datastax.com/support-forums/ Does the following make sense? What is the issue with log4j and MX4J? ~$ sudo dse cassandra [sudo] password for bigd: bigd@cassandra3:~$ log4j:WARN No appenders could be found for logger (org.apache.cassandra.service.AbstractCassandraDaemon). log4j:WARN Please initialize the log4j system properly. log4j:WARN See <a href="http://logging.apache.org/log4j/1.2/faq.html#noconfig" rel="nofollow">http://logging.apache.org/log4j/1.2/faq.html#noconfig</a> for more info. INFO 13:13:56,037 Logging initialized INFO 13:13:56,159 Creating new commitlog segment /media/bigd/commitlog/CommitLog-1321305236159.log INFO 13:13:56,170 Couldn't detect any schema definitions in local storage. INFO 13:13:56,171 Found table data in data directories. Consider using the CLI to define your schema. INFO 13:13:56,179 No commitlog files found; skipping replay INFO 13:13:56,182 Cassandra version: 1.0.0 INFO 13:13:56,182 Thrift API version: 19.17.0 INFO 13:13:56,182 Loading persisted ring state INFO 13:13:56,186 Starting up server gossip INFO 13:13:56,205 Enqueuing flush of Memtable-LocationInfo@732533575(197/246 serialized/live bytes, 4 ops) INFO 13:13:56,206 Writing Memtable-LocationInfo@732533575(197/246 serialized/live bytes, 4 ops) INFO 13:13:56,442 Completed flushing /media/bigd/data/system/LocationInfo-h-1-Data.db (305 bytes) INFO 13:13:56,463 Starting Messaging Service on /192.168.1.107:7000 INFO 13:13:56,479 Saved token not found. Using 127605887595351923798765477786913079296 from configuration INFO 13:13:56,480 Enqueuing flush of Memtable-LocationInfo@1071335501(53/66 serialized/live bytes, 2 ops) INFO 13:13:56,481 Writing Memtable-LocationInfo@1071335501(53/66 serialized/live bytes, 2 ops) INFO 13:13:56,657 Completed flushing /media/bigd/data/system/LocationInfo-h-2-Data.db (163 bytes) INFO 13:13:56,660 Node /192.168.1.107 state jump to normal INFO 13:13:56,660 Bootstrap/Replace/Move completed! Now serving reads. INFO 13:13:56,662 Will not load MX4J, mx4j-tools.jar is not in the classpath zznate on "JNA and mx4j" http://www.datastax.com/support-forums/topic/jna-and-mx4j#post-662 Fri, 11 Nov 2011 23:13:34 +0000 zznate 662@http://www.datastax.com/support-forums/ Both are optional packages. JNA is listed as a "Recommends" dependency in DSE as it is with the stock Apache Cassandra packages. It is recommended to install on production machines as it provides access to native memory and IO functions for higher performance and access to off-heap caching. libmx4j is only required if you would like to expose the JMX attributes via HTTP directly from Cassandra is detailed here: <a href="http://wiki.apache.org/cassandra/Operations#Monitoring_with_MX4J" rel="nofollow">http://wiki.apache.org/cassandra/Operations#Monitoring_with_MX4J</a> Please let us know if you have any more questions. thobbs on "No command 'dse' found" http://www.datastax.com/support-forums/topic/no-command-dse-found#post-661 Fri, 11 Nov 2011 18:39:24 +0000 thobbs 661@http://www.datastax.com/support-forums/ No, those libraries are not required to start DSE. Did you try running the commands that Nate suggested? In Unix/Linux, to run executables that are not in your path (directories like /bin, /usr/bin, /usr/local/bin, etc), you need to prefix the filename with path (which is just './' if it's in the current directory). Anonymous on "No command 'dse' found" http://www.datastax.com/support-forums/topic/no-command-dse-found#post-657 Fri, 11 Nov 2011 16:54:02 +0000 Anonymous 657@http://www.datastax.com/support-forums/ Just wonder if it could be caused by not doing those steps outlined here for JNA & mx4j (sudo aptitude install libjna-java libmx4j-java): <a href="https://sites.google.com/a/techlabs.accenture.com/cassandra/home/installcassandra07" rel="nofollow">https://sites.google.com/a/techlabs.accenture.com/cassandra/home/installcassandra07</a> Anonymous on "JNA and mx4j" http://www.datastax.com/support-forums/topic/jna-and-mx4j#post-656 Fri, 11 Nov 2011 16:51:17 +0000 Anonymous 656@http://www.datastax.com/support-forums/ Is this step still required for dse-1.0-3? sudo aptitude install libjna-java libmx4j-java If not, why? Is it because they have already been included as part of the package install here: <a href="http://www.datastax.com/docs/1.0/datastax_enterprise/install_dse_packages#install-dse-pkg" rel="nofollow">http://www.datastax.com/docs/1.0/datastax_enterprise/install_dse_packages#install-dse-pkg</a> If they are not included, which directories should they be installed at? Can I use the instructions here: <a href="https://sites.google.com/a/techlabs.accenture.com/cassandra/home/installcassandra07" rel="nofollow">https://sites.google.com/a/techlabs.accenture.com/cassandra/home/installcassandra07</a>