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Q1 Sometimes SCM manger lose connection with agent because the agent is dead. A1 You should start the agent service. $cd /etc/init.d $./cloudera-scm-agent status $./cloudera-scm-agent start  ...

http://www.infoq.com/cn/articles/hadoop-ten-best-practice   http://www.infoq.com/cn/articles/MapReduce-Best-Practice-1

Please ref flume user guide first http://flume.apache.org/FlumeUserGuide.html And the Cloudera flume blogs http://blog.cloudera.com/blog/category/flume/   How to define JAVA_HOME, java options ...

Transactions are critical concept for FlumeNG. Sources produce events into Channel based on transaction batch size. Sinks consume events from Channel based on transaction batch size. It means the ...

Delete Hbase rows example   $hadoop jar ./sponge-hserver.jar com.citi.sponge.mapreduce.MRDeleteRows -Dtable="elf_log" -DstartKey="10000:1365663164575:88888:testhome" -DstopKey="10000:1365663164575...

flumeng agent collect log events to flumeng collector flumeng collector sends data into hbase flumeng property file is monitored and controlled by JMX   Other MBean Example existing in Flume Ob...