如何在控制台上抑制hadoop生成的日志消息

时间：2016-05-12 17:56:33

标签： java hadoop mapreduce sentiment-analysis

我正在使用hadoop 2.5.2。我是hadoop和map的新手。我正在尝试使用地图缩减代码来执行情感分析。但是当我执行代码时，很多日志消息都是由控制台上的hadoop生成的。这就是为每个句子提供分析结果需要花费大量时间的原因。以下是记录消息...... 

2016-05-12 23:03:05,396 INFO  jvm.JvmMetrics (JvmMetrics.java:init(71)) - Cannot initialize JVM Metrics with processName=JobTracker, sessionId= - already initialized
2016-05-12 23:03:05,397 INFO  jvm.JvmMetrics (JvmMetrics.java:init(71)) - Cannot initialize JVM Metrics with processName=JobTracker, sessionId= - already initialized
2016-05-12 23:03:05,400 WARN  mapreduce.JobSubmitter (JobSubmitter.java:copyAndConfigureFiles(150)) - Hadoop command-line option parsing not performed. Implement the Tool interface and execute your application with ToolRunner to remedy this.
2016-05-12 23:03:05,403 WARN  mapreduce.JobSubmitter (JobSubmitter.java:copyAndConfigureFiles(259)) - No job jar file set.  User classes may not be found. See Job or Job#setJar(String).
2016-05-12 23:03:05,412 INFO  mapred.FileInputFormat (FileInputFormat.java:listStatus(247)) - Total input paths to process : 3
2016-05-12 23:03:05,421 INFO  mapreduce.JobSubmitter (JobSubmitter.java:submitJobInternal(396)) - number of splits:3
2016-05-12 23:03:05,430 INFO  mapreduce.JobSubmitter (JobSubmitter.java:printTokens(479)) - Submitting tokens for job: job_local1427897879_0120
2016-05-12 23:03:05,444 WARN  conf.Configuration (Configuration.java:loadProperty(2368)) - file:/home/hduser/workspace/Test1/build/test/mapred/staging/hduser1427897879/.staging/job_local1427897879_0120/job.xml:an attempt to override final parameter: mapreduce.job.end-notification.max.retry.interval;  Ignoring.
2016-05-12 23:03:05,445 WARN  conf.Configuration (Configuration.java:loadProperty(2368)) - file:/home/hduser/workspace/Test1/build/test/mapred/staging/hduser1427897879/.staging/job_local1427897879_0120/job.xml:an attempt to override final parameter: hadoop.tmp.dir;  Ignoring.
2016-05-12 23:03:05,445 WARN  conf.Configuration (Configuration.java:loadProperty(2368)) - file:/home/hduser/workspace/Test1/build/test/mapred/staging/hduser1427897879/.staging/job_local1427897879_0120/job.xml:an attempt to override final parameter: mapreduce.job.end-notification.max.attempts;  Ignoring.
2016-05-12 23:03:05,482 WARN  conf.Configuration (Configuration.java:loadProperty(2368)) - file:/home/hduser/workspace/Test1/build/test/mapred/local/localRunner/hduser/job_local1427897879_0120/job_local1427897879_0120.xml:an attempt to override final parameter: mapreduce.job.end-notification.max.retry.interval;  Ignoring.
2016-05-12 23:03:05,482 WARN  conf.Configuration (Configuration.java:loadProperty(2368)) - file:/home/hduser/workspace/Test1/build/test/mapred/local/localRunner/hduser/job_local1427897879_0120/job_local1427897879_0120.xml:an attempt to override final parameter: hadoop.tmp.dir;  Ignoring.
2016-05-12 23:03:05,483 WARN  conf.Configuration (Configuration.java:loadProperty(2368)) - file:/home/hduser/workspace/Test1/build/test/mapred/local/localRunner/hduser/job_local1427897879_0120/job_local1427897879_0120.xml:an attempt to override final parameter: mapreduce.job.end-notification.max.attempts;  Ignoring.
2016-05-12 23:03:05,483 INFO  mapreduce.Job (Job.java:submit(1289)) - The url to track the job: http://localhost:8080/
2016-05-12 23:03:05,483 INFO  mapreduce.Job (Job.java:monitorAndPrintJob(1334)) - Running job: job_local1427897879_0120
2016-05-12 23:03:05,483 INFO  mapred.LocalJobRunner (LocalJobRunner.java:createOutputCommitter(471)) - OutputCommitter set in config null
2016-05-12 23:03:05,484 INFO  mapred.LocalJobRunner (LocalJobRunner.java:createOutputCommitter(489)) - OutputCommitter is org.apache.hadoop.mapred.FileOutputCommitter
2016-05-12 23:03:05,485 INFO  mapred.LocalJobRunner (LocalJobRunner.java:runTasks(448)) - Waiting for map tasks
2016-05-12 23:03:05,485 INFO  mapred.LocalJobRunner (LocalJobRunner.java:run(224)) - Starting task: attempt_local1427897879_0120_m_000000_0
2016-05-12 23:03:05,486 INFO  mapred.Task (Task.java:initialize(587)) -  Using ResourceCalculatorProcessTree : [ ]
2016-05-12 23:03:05,486 INFO  mapred.MapTask (MapTask.java:updateJobWithSplit(462)) - Processing split: file:/home/hduser/workspace/Test1/training/pool.txt:0+17961
2016-05-12 23:03:05,487 INFO  mapred.MapTask (MapTask.java:runOldMapper(416)) - numReduceTasks: 1
2016-05-12 23:03:05,487 INFO  mapred.MapTask (MapTask.java:createSortingCollector(388)) - Map output collector class = org.apache.hadoop.mapred.MapTask$MapOutputBuffer
2016-05-12 23:03:05,513 INFO  mapred.MapTask (MapTask.java:setEquator(1182)) - (EQUATOR) 0 kvi 26214396(104857584)
2016-05-12 23:03:05,513 INFO  mapred.MapTask (MapTask.java:init(975)) - mapreduce.task.io.sort.mb: 100
2016-05-12 23:03:05,514 INFO  mapred.MapTask (MapTask.java:init(976)) - soft limit at 83886080
2016-05-12 23:03:05,514 INFO  mapred.MapTask (MapTask.java:init(977)) - bufstart = 0; bufvoid = 104857600
2016-05-12 23:03:05,514 INFO  mapred.MapTask (MapTask.java:init(978)) - kvstart = 26214396; length = 6553600
2016-05-12 23:03:05,516 INFO  mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 
2016-05-12 23:03:05,516 INFO  mapred.MapTask (MapTask.java:flush(1437)) - Starting flush of map output
2016-05-12 23:03:05,516 INFO  mapred.MapTask (MapTask.java:flush(1455)) - Spilling map output
2016-05-12 23:03:05,516 INFO  mapred.MapTask (MapTask.java:flush(1456)) - bufstart = 0; bufend = 17961; bufvoid = 104857600
2016-05-12 23:03:05,516 INFO  mapred.MapTask (MapTask.java:flush(1458)) - kvstart = 26214396(104857584); kvend = 26211024(104844096); length = 3373/6553600
2016-05-12 23:03:05,523 INFO  mapred.MapTask (MapTask.java:sortAndSpill(1641)) - Finished spill 0
2016-05-12 23:03:05,524 INFO  mapred.Task (Task.java:done(1001)) - Task:attempt_local1427897879_0120_m_000000_0 is done. And is in the process of committing
2016-05-12 23:03:05,525 INFO  mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - file:/home/hduser/workspace/Test1/training/pool.txt:0+17961
2016-05-12 23:03:05,525 INFO  mapred.Task (Task.java:sendDone(1121)) - Task 'attempt_local1427897879_0120_m_000000_0' done.
2016-05-12 23:03:05,525 INFO  mapred.LocalJobRunner (LocalJobRunner.java:run(249)) - Finishing task: attempt_local1427897879_0120_m_000000_0
2016-05-12 23:03:05,525 INFO  mapred.LocalJobRunner (LocalJobRunner.java:run(224)) - Starting task: attempt_local1427897879_0120_m_000001_0
2016-05-12 23:03:05,525 INFO  mapred.Task (Task.java:initialize(587)) -  Using ResourceCalculatorProcessTree : [ ]
2016-05-12 23:03:05,526 INFO  mapred.MapTask (MapTask.java:updateJobWithSplit(462)) - Processing split: file:/home/hduser/workspace/Test1/training/pool.txt~:0+17939
2016-05-12 23:03:05,526 INFO  mapred.MapTask (MapTask.java:runOldMapper(416)) - numReduceTasks: 1
2016-05-12 23:03:05,527 INFO  mapred.MapTask (MapTask.java:createSortingCollector(388)) - Map output collector class = org.apache.hadoop.mapred.MapTask$MapOutputBuffer
2016-05-12 23:03:05,550 INFO  mapred.MapTask (MapTask.java:setEquator(1182)) - (EQUATOR) 0 kvi 26214396(104857584)
2016-05-12 23:03:05,550 INFO  mapred.MapTask (MapTask.java:init(975)) - mapreduce.task.io.sort.mb: 100
2016-05-12 23:03:05,550 INFO  mapred.MapTask (MapTask.java:init(976)) - soft limit at 83886080
2016-05-12 23:03:05,550 INFO  mapred.MapTask (MapTask.java:init(977)) - bufstart = 0; bufvoid = 104857600
2016-05-12 23:03:05,550 INFO  mapred.MapTask (MapTask.java:init(978)) - kvstart = 26214396; length = 6553600
2016-05-12 23:03:05,552 INFO  mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) -

我已经在stackoverflow [how to suppress Hadoop logging message on the console上提到了类似的问题，但是它没有帮助我解决明确的答案。我尝试在某个论坛中使用以下配置，但它无法正常工作。我在hadoop-env.sh中试过设置以下

export HADOOP_HOME_WARN_SUPPRESS=1
export HADOOP_ROOT_LOGGER="WARN,DRFA"

我还尝试通过设置以下值来编辑log4j.properties文件。

hadoop.root.logger=WARN,DRFA 
hadoop.log.dir=. 
hadoop.log.file=hadoop.log

但是我仍然无法摆脱在运行时执行期间由hadoop mapreduce生成的这些日志消息。它也在控制台上延迟了我的输出。是他们的任何解决方法或我可以嵌入到我的代码中的任何java代码压制消息。任何建议，帮助..任何人都知道？

非常感谢!!

1 个答案:

答案 0 :(得分：0)

我找到了解决方案。它需要的只是更改mapreduce的配置文件。

1.mapreduce.map.log.level可以将值取为OFF，FATAL，ERROR，WARN，INFO，DEBUG，TRACE和ALL。如果＆＃34; mapreduce.job.log4j-properties-file＆＃34;可以覆盖该设置。已经确定了。

  1. mapreduce.reduce.log.level也可以将值取为OFF，FATAL，ERROR，WARN，INFO，DEBUG，TRACE和ALL。如果＆＃34; mapreduce.job.log4j-properties-file＆＃34;可以覆盖该设置。是设置。所以最好确保＆＃34; mapreduce.job.log4j-properties-file＆＃34;未设置。

    2. 我们必须在mapred-site.xml中设置以下属性。

    <property>
<name>mapreduce.map.log.level</name>
<value>OFF</value>
</property>


<property>
<name>mapreduce.reduce.log.level</name>
<value>OFF</value>
</property>

    现在我在控制台上看不到任何日志消息。但是它也有缺点，因为我们无法在执行mapreduce代码时发现任何错误，因为没有日志消息可见。

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