拓扑的自定义风暴logback appender

Question

我有一个风暴拓扑,我想将拓扑中发生的某些事件记录到一个单独的日志文件中.我正在尝试在storm/logback/cluster.xml中创建一个自定义appender,用于记录这些事件.这是我设置所有内容的cluster.xml代码段:

<appender name="A2" class="ch.qos.logback.core.rolling.RollingFileAppender">
    <file>${storm.home}/logs/custom-logger/cl-log.log</file>
    <rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
      <fileNamePattern>${storm.home}/logs/${logfile.name}.%i</fileNamePattern>
      <minIndex>1</minIndex>
      <maxIndex>9</maxIndex>
    </rollingPolicy>

    <triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
      <maxFileSize>100MB</maxFileSize>
    </triggeringPolicy>

    <encoder>
      <pattern>%d{yyyy-MM-dd_HH:mm:ss} %c{1} [%p] %m$n</pattern>
    </encoder>
</appender>

<logger name="custom-logger" additivity="false">
   <level value="INFO" />
   <appender-ref ref="A2"/>
</logger>

我使用基本的WordCountTopology来测试示例.这是我尝试写入日志文件的代码片段

public static class WordCount extends BaseBasicBolt {

    private static final org.slf4j.Logger CUSTOM_LOGGER = 
           LoggerFactory.getLogger("custom-logger");
    Map<String, Integer> counts = new HashMap<String, Integer>();

    public void execute(Tuple tuple, BasicOutputCollector collector) {
      String word = tuple.getString(0);
      Integer count = counts.get(word);
      if (count == null)
        count = 0;
      count++;
      counts.put(word, count);

      CUSTOM_LOGGER.info("Emitting word[" + word + "] count["+ count + "]");
      collector.emit(new Values(word, count));
    }

    public void declareOutputFields(OutputFieldsDeclarer declarer) {
      declarer.declare(new Fields("word", "count"));
    }
}

无论我做什么,我似乎都无法将这些日志显示在custom-logger cl-log.log文件中.甚至可以在Storm中使用logback将特定事件记录到特定文件中吗？任何帮助,将不胜感激.

Answer 1

为了完整起见，我确实让它发挥了作用。我在本地部署拓扑，因此没有发生日志记录。一旦我将拓扑部署到集群，上面的日志记录功能就开始工作。