Today when I the started collector I found errors in the first two lines of the collector.log file. Every thing is working fine and I can see the Colllector.pid file in the pidDir directory as well.The errors are shown below -
2011-11-23 15:03:44,300 ERROR main PidFile - Initialization failed... 2011-11-23 15:03:44,301 ERROR main PidFile - Can not get lock on pid file: /home/tariq/chukwa_data/pidDir/Collector.pid 2011-11-23 15:03:44,306 INFO main ChukwaConfiguration - chukwaConf is /home/tariq/chukwa-0.4.0/bin/../conf 2011-11-23 15:03:44,447 INFO main root - initing servletCollector 2011-11-23 15:03:44,449 INFO main PipelineStageWriter - using pipelined writers, pipe length is 2 2011-11-23 15:03:44,452 INFO Thread-6 SocketTeeWriter - listen thread started 2011-11-23 15:03:44,453 INFO main SeqFileWriter - rotateInterval is 300000 2011-11-23 15:03:44,453 INFO main SeqFileWriter - outputDir is /chukwa/logs/ 2011-11-23 15:03:44,453 INFO main SeqFileWriter - fsname is hdfs://localhost:9000/ 2011-11-23 15:03:44,453 INFO main SeqFileWriter - filesystem type from core-default.xml is org.apache.hadoop.hdfs.DistributedFileSystem 2011-11-23 15:03:45,447 INFO Timer-1 root - stats:ServletCollector,numberHTTPConnection:0,numberchunks:0 2011-11-23 15:03:45,660 INFO Timer-3 SeqFileWriter - stat:datacollection.writer.hdfs dataSize=5001 dataRate=5001 2011-11-23 15:04:15,660 INFO Timer-3 SeqFileWriter - stat:datacollection.writer.hdfs dataSize=7925 dataRate=264 2011-11-23 15:04:45,448 INFO Timer-1 root - stats:ServletCollector,numberHTTPConnection:3,numberchunks:3 2011-11-23 15:04:45,660 INFO Timer-3 SeqFileWriter - stat:datacollection.writer.hdfs dataSize=0 dataRate=0 2011-11-23 15:05:15,660 INFO Timer-3 SeqFileWriter - stat:datacollection.writer.hdfs dataSize=0 dataRate=0 2011-11-23 15:05:45,448 INFO Timer-1 root - stats:ServletCollector,numberHTTPConnection:0,numberchunks:0 2011-11-23 15:05:45,660 INFO Timer-3 SeqFileWriter - stat:datacollection.writer.hdfs dataSize=0 dataRate=0 2011-11-23 15:06:15,660 INFO Timer-3 SeqFileWriter - stat:datacollection.writer.hdfs dataSize=0 dataRate=0 2011-11-23 15:06:45,448 INFO Timer-1 root - stats:ServletCollector,numberHTTPConnection:0,numberchunks:0 2011-11-23 15:06:45,660 INFO Timer-3 SeqFileWriter - stat:datacollection.writer.hdfs dataSize=0 dataRate=0 2011-11-23 15:07:15,660 INFO Timer-3 SeqFileWriter - stat:datacollection.writer.hdfs dataSize=0 dataRate=0 2011-11-23 15:07:45,448 INFO Timer-1 root - stats:ServletCollector,numberHTTPConnection:0,numberchunks:0 2011-11-23 15:07:45,660 INFO Timer-3 SeqFileWriter - stat:datacollection.writer.hdfs dataSize=0 dataRate=0 2011-11-23 15:08:15,660 INFO Timer-3 SeqFileWriter - stat:datacollection.writer.hdfs dataSize=0 dataRate=0 2011-11-23 15:08:44,800 INFO Timer-2 SeqFileWriter - rotating sink file /chukwa/logs/201123150344592_ubuntuubuntudomain_f6e83f7133cfc613118000.chukwa 2011-11-23 15:08:45,448 INFO Timer-1 root - stats:ServletCollector,numberHTTPConnection:0,numberchunks:0 2011-11-23 15:08:45,660 INFO Timer-3 SeqFileWriter - stat:datacollection.writer.hdfs dataSize=0 dataRate=0 2011-11-23 15:09:15,660 INFO Timer-3 SeqFileWriter - stat:datacollection.writer.hdfs dataSize=0 dataRate=0 2011-11-23 15:09:45,448 INFO Timer-1 root - stats:ServletCollector,numberHTTPConnection:0,numberchunks:0 2011-11-23 15:09:45,661 INFO Timer-3 SeqFileWriter - stat:datacollection.writer.hdfs dataSize=0 dataRate=0 2011-11-23 15:10:15,661 INFO Timer-3 SeqFileWriter - stat:datacollection.writer.hdfs dataSize=0 dataRate=0 2011-11-23 15:10:45,448 INFO Timer-1 root - stats:ServletCollector,numberHTTPConnection:0,numberchunks:0 2011-11-23 15:10:45,661 INFO Timer-3 SeqFileWriter - stat:datacollection.writer.hdfs dataSize=0 dataRate=0 2011-11-23 15:11:15,662 INFO Timer-3 SeqFileWriter - stat:datacollection.writer.hdfs dataSize=0 dataRate=0 2011-11-23 15:11:45,448 INFO Timer-1 root - stats:ServletCollector,numberHTTPConnection:0,numberchunks:0 2011-11-23 15:11:45,662 INFO Timer-3 SeqFileWriter - stat:datacollection.writer.hdfs dataSize=0 dataRate=0 This is the content of my collector.log file.Any idea what is happening??? Regards, Mohammad Tariq
