How to turn off MongoDB logging?

Hi,

I’m currently running some tests with MongoDB. However, the YCSB benchmark generates a large amount of debug information as output. I normally execute the benchmark and redirect the output to a file for later analysis. However, with the amount of debug information the driver is generating these files are becoming unnecessarily large. At the very end of the run I finally get the required info such as average throughput, total runtime etc.

Example of execution:

python ./bin/ycsb run mongodb -P workloads/workloadc -p recordcount=100000 
-p operationcount=20000  -p mongodb.url=mongodb://localhost:27017/ycsb

Output (sample):

19:37:35.058 [Thread-2] DEBUG org.mongodb.driver.protocol.query - Sending query of namespace ycsb.usertable on connection [connectionId{localValue:2, serverValue:337}] to server localhost:27017
19:37:35.058 [Thread-2] DEBUG org.mongodb.driver.protocol.query - Query completed
19:37:35.058 [Thread-2] DEBUG org.mongodb.driver.protocol.query - Sending query of namespace ycsb.usertable on connection [connectionId{localValue:2, serverValue:337}] to server localhost:27017
19:37:35.058 [Thread-2] DEBUG org.mongodb.driver.protocol.query - Query completed
19:37:35.058 [Thread-2] DEBUG org.mongodb.driver.protocol.query - Sending query of namespace ycsb.usertable on connection [connectionId{localValue:2, serverValue:337}] to server localhost:27017

Is there any way to turn off the debugging? (preferably without modifying the source code)

[kruthar]

@vreniers - the mongodb driver is setup to use slf4j and logback-classic so you actually need a logback.xml configuration present. I used something similar to this:

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
        <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
                <encoder>
                        <pattern>%d{HH:mm:ss.SSS}  %-5level %logger{36} - %msg%n</pattern>
                </encoder>
        </appender>

        <logger name="org.mongodb" level="WARN">
                <appender-ref ref="STDOUT"/>
        </logger>

        <root level="INFO">
                <appender-ref ref="STDOUT"/>
        </root>
</configuration>

Putting the logback.xml on the classpath was not sufficient, I had to specify it with a jvm property. Similar to:

python ./bin/ycsb run mongodb -P workloads/workloadc -p recordcount=100000 -p operationcount=20000 -p mongodb.url=mongodb://localhost:27017/ycsb -jvm-args="-Dlogback.configurationFile=/path/to/logback.xml"

[vreniers]

This works, thank you.