sam Software, Support, and Training for Apache Cassandra en-US Mon, 20 May 2013 19:00:12 +0000 http://bbpress.org/?v=1.0.3 q http://www.datastax.com/support-forums/search.php http://www.datastax.com/support-forums/topic/dse-30-with-internal-authentication-and-hadoop#post-11259 Mon, 20 May 2013 13:53:34 +0000 sam 11259@http://www.datastax.com/support-forums/ <p>Hi Felipe,</p> <p>sorry, I think I misunderstood what you meant by "Internal Authentication" in your original question. DSE does not support the use of PasswordAuthenticator with Hadoop. If you need to secure a DSE cluster with analytics nodes, you'll need to use Kerberos authentication as this is the only authentication mechanism supported in Hadoop right now. </p> http://www.datastax.com/support-forums/topic/dse-30-with-internal-authentication-and-hadoop#post-11258 Mon, 20 May 2013 13:44:37 +0000 felipe.abezerra 11258@http://www.datastax.com/support-forums/ <p>Thanks Sam!</p> <p>My problem is that i am using Internal Authentication and i can´t connect to my Hadoop nodes.<br /> I saw that there is a limitation to work on with Hadoop and internal authentication.</p> <p>Can you suggest something to fix this issue?</p> <p>Felipe </p> http://www.datastax.com/support-forums/topic/sstableloader-error#post-11256 Mon, 20 May 2013 10:54:56 +0000 sam 11256@http://www.datastax.com/support-forums/ <p>Hi Kitty</p> <p>is there any other output to the console when you run the script? Also, do you see any errors in /var/log/cassandra/system.log? </p> http://www.datastax.com/support-forums/topic/sstableloader-error#post-11255 Mon, 20 May 2013 10:53:21 +0000 kitty 11255@http://www.datastax.com/support-forums/ <p>Hi Sam,</p> <p>It appears on classpath , on running echo $CLASSPATH </p> http://www.datastax.com/support-forums/topic/sstableloader-error#post-11247 Mon, 20 May 2013 07:42:43 +0000 sam 11247@http://www.datastax.com/support-forums/ <p>Hi,</p> <p>the DseDelegateSnitch class that appears to be missing is definitely included in the dse-3.0.1.jar. Can you verify that the jar does actually appear on the classpath when you run the script?</p> <p>Thanks,<br /> Sam </p> http://www.datastax.com/support-forums/topic/dse-30-with-internal-authentication-and-hadoop#post-11246 Mon, 20 May 2013 07:23:14 +0000 sam 11246@http://www.datastax.com/support-forums/ <p>Hi,</p> <p>yes, mixed workload clusters support the security options in DSE 3.0 onwards. With authentication enabled, inter-node communication in distributed Solr queries and running Hadoop jobs will use the built-in security mechanisms. From a client perspective, this is transparent although clients will obviously also need to authenticate when communicating with the secure cluster.</p> <p>Thanks,<br /> Sam </p> http://www.datastax.com/support-forums/topic/sstableloader-error#post-11223 Sun, 19 May 2013 06:15:54 +0000 kitty 11223@http://www.datastax.com/support-forums/ <p>Hi</p> <p>I am also using dse-3.0.1<br /> In the above example given at link : <a href="http://www.datastax.com/dev/blog/bulk-loading" rel="nofollow">http://www.datastax.com/dev/blog/bulk-loading</a>, added partitioner(random partitioner) in constructer argument list, and followed all the steps.Code compiles without errors but on running the script, I keep getting error below:<br /> Error instantiating snitch class ‘com.datastax.bdp.snitch.DseDelegateSnitch’.<br /> Fatal configuration error; unable to start server. See log for stacktrace.</p> <p>I am executing it from location /usr/lib/datastax/dse-3.0.1/resources/cassandra</p> <p>This is my script file</p> <p>#!/bin/sh</p> <p># paths to the cassandra source tree, cassandra jar and java<br /> CASSANDRA_HOME=”.”<br /> CASSANDRA_JAR=”$CASSANDRA_HOME/../../lib/dse-3.0.1.jar”<br /> JAVA=<code>which java</code></p> <p># Java classpath. Must include:<br /> # – directory of DataImportExample<br /> # – directory with cassandra/log4j config files<br /> # – cassandra jar<br /> # – cassandra depencies jar<br /> CLASSPATH=”.:$CASSANDRA_HOME/conf:$CASSANDRA_JAR”</p> <p>for jar in $CASSANDRA_HOME/lib/*.jar; do<br /> CLASSPATH=$CLASSPATH:$jar<br /> done</p> <p>$JAVA -ea -cp $CLASSPATH -Xmx256M \<br /> -Dlog4j.configuration=log4j-tools.properties \<br /> DataImportExample “/home/myuser/cassandra_artifacts/demodata.csv”</p> <p>Is there anything taht I have missed out.<br /> Can anyone pls help me identify the issue??? </p> http://www.datastax.com/support-forums/topic/dse-30-with-internal-authentication-and-hadoop#post-11190 Fri, 17 May 2013 20:43:34 +0000 felipe.abezerra 11190@http://www.datastax.com/support-forums/ <p>Hi,</p> <p>Can somebody tell me if it's possible to have in a same cluster, nodes with SOLR and Hadoop using Internal Authentication?</p> <p>Regards, </p> http://www.datastax.com/support-forums/topic/sstableloader-error#post-11186 Fri, 17 May 2013 16:03:03 +0000 upant 11186@http://www.datastax.com/support-forums/ <p>This is what I have in my run script:<br /> # paths to the cassandra source tree, cassandra jar and java<br /> CASSANDRA_HOME="/usr/share/dse/"<br /> CASSANDRA_JAR="$CASSANDRA_HOME/dse.jar"<br /> JAVA=<code>which java</code></p> <p># Java classpath. Must include:<br /> # - directory of DataImportExample<br /> # - directory with cassandra/log4j config files<br /> # - cassandra jar<br /> # - cassandra depencies jar<br /> CLASSPATH=".:/etc/dse/cassandra/:/etc/dse/cassandra/cassandra.yaml:/etc/dse/cassandra/log4j-tools.properties:$CASSANDRA_JAR"</p> <p>for jar in $CASSANDRA_HOME/cassandra/lib/*.jar; do<br /> CLASSPATH=$CLASSPATH:$jar<br /> done</p> <p>$JAVA -ea -cp $CLASSPATH -Xmx256M \<br /> -Dlog4j.configuration=log4j-tools.properties \<br /> DataImportExample "$@" </p> http://www.datastax.com/support-forums/topic/sstableloader-error#post-11156 Thu, 16 May 2013 19:37:15 +0000 alexliu 11156@http://www.datastax.com/support-forums/ <p>You may need include the &lt;DSE_HOME&gt;/lib/&lt;dse.jar&gt; in your class path, also make sure the resources/cassandra/conf/cassandra.yaml is in the front of class path. </p> http://www.datastax.com/support-forums/topic/sstableloader-error#post-11025 Tue, 14 May 2013 17:29:28 +0000 upant 11025@http://www.datastax.com/support-forums/ <p>- Installed DSE using RPM package.<br /> - Created keyspace and column families as mentioned in the example and was able to write/read data using CLI.<br /> - Created a Java class(DataImportExample) using example code at <a href="http://www.datastax.com/wp-content/uploads/2011/08/DataImportExample.java" rel="nofollow">http://www.datastax.com/wp-content/uploads/2011/08/DataImportExample.java</a>.<br /> - While compiling the class, I got an error. The code listed in the example doesn't have partitioner argument in SSTableSimpleUnsortedWriter constructor. So, passing RandomPartitioner the constructor fixed the error.<br /> - Executed the class (DataImportExample) and I got following error:<br /> Error instantiating snitch class 'com.datastax.bdp.snitch.DseDelegateSnitch'.<br /> Fatal configuration error; unable to start server.</p> <p>- Location of the Java class is /home/myuser/workspace/<br /> - I compiled and executed the class from this folder. </p> http://www.datastax.com/support-forums/topic/sstableloader-error#post-10982 Mon, 13 May 2013 22:07:38 +0000 alexliu 10982@http://www.datastax.com/support-forums/ <p>It should work, which directory are you in and what command did you issue? </p> http://www.datastax.com/support-forums/topic/sstableloader-error#post-10719 Tue, 07 May 2013 20:59:47 +0000 upant 10719@http://www.datastax.com/support-forums/ <p>Hi,</p> <p>I am running DSE 3.0 in CentOS 6.x. I followed installation instructions at <a href="http://www.datastax.com/docs/datastax_enterprise3.0/install/install_rpm_pkg" rel="nofollow">http://www.datastax.com/docs/datastax_enterprise3.0/install/install_rpm_pkg</a>. I can create column families, insert data and retrieve data using CLI. However, whenI tried to run sstableloader (<a href="http://www.datastax.com/dev/blog/bulk-loading)" rel="nofollow">http://www.datastax.com/dev/blog/bulk-loading)</a>, I got following error:</p> <p>Error instantiating snitch class 'com.datastax.bdp.snitch.DseDelegateSnitch'.<br /> Fatal configuration error; unable to start server.</p> <p>I tried the same code in Apache Cassandra (not DataStax distribution) and I was able to run the loader without any issue or any additional configuration.</p> <p>Has anybody tried sstableloader in DSE?</p> <p>Thanks,<br /> Uddhab </p> http://www.datastax.com/support-forums/topic/newbie-trouble-with-cql-containers-and-secondary-index-on-composite-keys#post-10588 Fri, 03 May 2013 17:43:58 +0000 andy 10588@http://www.datastax.com/support-forums/ <p>Hi alexliu and sam</p> <p>alexliu's example did not work. I think Sam's explanation is correct. I look forward to version 3.1</p> <p>Andy </p> http://www.datastax.com/support-forums/topic/newbie-trouble-with-cql-containers-and-secondary-index-on-composite-keys#post-10585 Fri, 03 May 2013 07:50:24 +0000 sam 10585@http://www.datastax.com/support-forums/ <p>The music application example in the blog post uses the final version of CQL 3.0, which is only supported in Cassandra version 1.2 or greater. The current release of DataStax Enterprise (3.0.1) ships with Cassandra 1.1, which supports CQL 3.0-beta. Unfortunately, there are some differences between the two CQL versions which means that for the moment, the example schema can't be created on DSE. DSE 3.1 will include Cassandra 1.2 &amp; this is currently in development and we're aiming to release late in Q2. </p>