Charm Needed: Solandra

[Clint Byrum]

Solandra is the integration of the SOLR search engine with Cassandra as backend storage.

https://github.com/tjake/Solandra

[James Page (james-page)]

The majority of this charm is going to be the same as the cassandra charm so it should be fairly low-effort to implement this.

[Peter Petrakis (peter-petrakis)]

Tried charming this from Solandra source as it's not packaged and ran into some roadblocks.

Following the procedure for using an existing cassandra install, I'm actually working from
within a cassandra instance. I get this.

root@ppetraki-sample-cassandra-3:~/solyndra-install/Solandra# INFO 16:51:38,068 Logging initialized
Exception in thread "main" java.lang.ExceptionInInitializerError
 at solandra.SolandraServer.main(SolandraServer.java:39)
Caused by: java.lang.NullPointerException
 at java.util.Properties$LineReader.readLine(Properties.java:435)
 at java.util.Properties.load0(Properties.java:354)
 at java.util.Properties.load(Properties.java:342)
 at lucandra.CassandraUtils.<clinit>(CassandraUtils.java:102)
 ... 1 more

I'm not very familiar with java so I really don't know where to go from there. I'm using
openjdk v6 and build from source using ant as advised by the docs.

besides that, I had to modify build.xml to locate the cassandra script.
diff --git a/build.xml b/build.xml
index 6ec4f6a..cd1e1ac 100644
--- a/build.xml
+++ b/build.xml
@@ -285,7 +285,7 @@
                </copy>

- <copy overwrite="true" file="${cassandra}/bin/cassandra" tofile="${cassandra}/bin/solandra" />
+ <copy overwrite="true" file="/usr/sbin/cassandra" tofile="${cassandra}/bin/solandra" />

                <replace file="${cassandra}/bin/solandra" failOnNoReplacements="true">
                        <replacetoken>classname="org.apache.cassandra.thrift.CassandraDaemon"</replacetoken>

and built like so.

ant -Dcassandra=/usr/share/cassandra cassandra-dist

Hopefully this helps the next guy get further with this. I intend to move on to other open charm bugs.