ArangoDB and gremlin: How to reduce LOGGING

Question

I have installed gremlin (v. 2.6.0) and ArangoDB (v. 2.8.11) and when I run any request through the gremlin.sh shell I get all the debug messages like

11:17:39.713 [main] DEBUG com.arangodb.http.HttpManager - [REQ]http-GET: url=http://localhost:8529/_api/gharial/myDB/edge/E/12712, headers={}
11:17:39.716 [main] DEBUG com.arangodb.http.HttpManager - [RES]http-GET: statusCode=200
11:17:39.716 [main] DEBUG com.arangodb.http.HttpManager - [RES]http-GET: text={"error":false,"code":200,"edge":{"_id":"E/12712"," . . .

I see those are DEBUG messages, so I want to suppress in order not to be flooded by those and only get important messages, like errors or warnings.

Answer 1

To reduce logging one has to change the log level on both server and client side.

Complete steps to fix this:

1. create config PATH_TO/confs/ directory with inside: a. file confs/arangod.conf b. file confs/logback.xml

2. set env. variable CLASSPATH:

export CLASSPATH=PATH_TO/confs

3. you can start arangod as follows:

arangod --daemon --pid-file /etc/arangodb/arangodb.pid -c PATH_TO/confs/arangod.conf

The content of confs/arangod.conf should contain:

  [log]
  ## info, warning, or error
  level = info
  file = PATH_TO/logs/arangodb.log

The content of the confs/logback.xml

<configuration>
  <!-- Arango log4j conf -->
  <appender name="CONSOLE"
      class="ch.qos.logback.core.ConsoleAppender">
          <!-- deny all events with a level below INFO, that is TRACE and DEBUG -->
           <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
                <level>INFO</level>
           </filter>
           <encoder>
           <pattern>
                 %-4relative [%thread] %-5level %logger{30} - %msg%n
           </pattern>
           </encoder>
  </appender>
  <root level="DEBUG">
     <appender-ref ref="CONSOLE" />
  </root>
</configuration>