cassandra-log4j-appender

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Cassandra appender for Log4j.

Motivation and usage.

Log4j is widely used as logging tool. A Cassandra implementation used in Asynchronous way as well as having a local FileAppender would facilitate offline log exploration and analysis.

An Asynchronous appender wrapping CassandraAppender is encourage to avoid slowing down the applicaction.

Adding appender to log4j.properties

Add this appender to log4j.properties. See log4j-example.properties.

# Cassandra Appender
log4j.appender.CASS=com.datastax.logging.appender.CassandraAppender

# Optional settings. The current values are the default ones
#log4j.appender.CASS.hosts = 127.0.0.1
#log4j.appender.CASS.port = 9160
#log4j.appender.CASS.keyspaceName = "Logging"
#log4j.appender.CASS.columnFamily = "log_entries"
#log4j.appender.CASS.replicationFactor = 1
#log4j.appender.CASS.consistencyLevelWrite = "ONE"
#log4j.appender.CASS.maxBufferedRows = 1

How to build:

mvn install

If you are a maven user, maven dependency plugin can resolve the dependencies. The following is an output of mvn dependency:list

Dependencies: mvn dependency:list

commons-codec:commons-codec:jar:1.3:compile
commons-lang:commons-lang:jar:2.4:compile
commons-logging:commons-logging:jar:1.1.1:compile
javax.servlet:servlet-api:jar:2.5:compile
junit:junit:jar:4.8.1:test
log4j:log4j:jar:1.2.16:compile
org.apache.cassandra:cassandra-thrift:jar:1.0.7:compile
org.apache.httpcomponents:httpclient:jar:4.0.1:compile
org.apache.httpcomponents:httpcore:jar:4.0.1:compile
org.apache.thrift:libthrift:jar:0.6.1:compile
org.slf4j:slf4j-api:jar:1.6.1:compile
org.slf4j:slf4j-log4j12:jar:1.6.1:compile

mvn dependency:tree:

+- org.apache.cassandra:cassandra-thrift:jar:1.0.7:compile
|  +- commons-lang:commons-lang:jar:2.4:compile
|  +- org.slf4j:slf4j-api:jar:1.6.1:compile
|  \- org.apache.thrift:libthrift:jar:0.6.1:compile
|     +- javax.servlet:servlet-api:jar:2.5:compile
|     \- org.apache.httpcomponents:httpclient:jar:4.0.1:compile
|        +- org.apache.httpcomponents:httpcore:jar:4.0.1:compile
|        +- commons-logging:commons-logging:jar:1.1.1:compile
|        \- commons-codec:commons-codec:jar:1.3:compile
+- log4j:log4j:jar:1.2.16:compile
+- org.slf4j:slf4j-log4j12:jar:1.6.1:compile