modules/airavata-helix/helix-spectator/src/main/resources/logback.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--


    Licensed to the Apache Software Foundation (ASF) under one
    or more contributor license agreements.  See the NOTICE file
    distributed with this work for additional information
    regarding copyright ownership.  The ASF licenses this file
    to you under the Apache License, Version 2.0 (the
    "License"); you may not use this file except in compliance
    with the License.  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

    Unless required by applicable law or agreed to in writing,
    software distributed under the License is distributed on an
    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    KIND, either express or implied.  See the License for the
    specific language governing permissions and limitations
    under the License.

-->
<configuration>

    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%d [%t] %-5p %c{30} %m [%X]%n</pattern>
        </encoder>
    </appender>

    <appender name="LOGFILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <File>../logs/airavata.log</File>
        <Append>true</Append>
        <encoder>
            <pattern>%d [%t] %-5p %c{30} %m [%X]%n</pattern>
        </encoder>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>../logs/airavata.log.%d{yyyy-MM-dd}</fileNamePattern>
            <maxHistory>30</maxHistory>
            <totalSizeCap>1GB</totalSizeCap>
        </rollingPolicy>
    </appender>

    <appender name="KAFKA_FAILED_LOGFILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <File>../logs/kafka-failed.log</File>
        <Append>true</Append>
        <encoder>
            <pattern>%d [%t] %-5p %c{30} %X - %m%n</pattern>
        </encoder>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>../logs/kafka-failed.log.%d{yyyy-MM-dd}</fileNamePattern>
            <maxHistory>30</maxHistory>
            <totalSizeCap>1GB</totalSizeCap>
        </rollingPolicy>
    </appender>


    <appender name="RELAXED-KAFKA-APPENDER" class="com.github.danielwegener.logback.kafka.KafkaAppender">
        <encoder class="net.logstash.logback.encoder.LogstashEncoder">
            <pattern>%d [%t] %-5p %c{30} %X - %m%n</pattern>
        </encoder>
        <topic>airavata-logs</topic>
        <!-- we don't care how the log messages will be partitioned  -->
        <keyingStrategy class="com.github.danielwegener.logback.kafka.keying.NoKeyKeyingStrategy" />

        <!-- use async delivery. the application threads are not blocked by logging -->
        <deliveryStrategy class="com.github.danielwegener.logback.kafka.delivery.AsynchronousDeliveryStrategy" />

        <!-- each <producerConfig> translates to regular kafka-client config (format: key=value) -->
        <!-- producer configs are documented here: https://kafka.apache.org/documentation.html#newproducerconfigs -->
        <!-- bootstrap.servers is the only mandatory producerConfig -->
        <producerConfig>bootstrap.servers=192.168.99.103:9092</producerConfig>
        <!-- don't wait for a broker to ack the reception of a batch.  -->
        <producerConfig>acks=0</producerConfig>
        <!-- wait up to 1000ms and collect log messages before sending them as a batch -->
        <producerConfig>linger.ms=1000</producerConfig>
        <!-- even if the producer buffer runs full, do not block the application but start to drop messages -->
        <producerConfig>max.block.ms=0</producerConfig>
        <!-- define a client-id that you use to identify yourself against the kafka broker -->
        <producerConfig>client.id=${HOSTNAME}-${CONTEXT_NAME}-logback-relaxed</producerConfig>

        <!-- there is no fallback <appender-ref>. If this appender cannot deliver, it will drop its messages. -->
        <appender-ref ref="KAFKA_FAILED_LOGFILE"/>
    </appender>

    <logger name="ch.qos.logback" level="WARN"/>
    <logger name="org.apache.helix" level="WARN"/>
    <logger name="org.apache.zookeeper" level="ERROR"/>
    <logger name="org.apache.airavata" level="INFO"/>
    <logger name="org.hibernate" level="ERROR"/>
    <root level="INFO">
        <appender-ref ref="RELAXED-KAFKA-APPENDER"/>
        <appender-ref ref="CONSOLE"/>
        <appender-ref ref="LOGFILE"/>
    </root>
</configuration>