I am a newbie to Flume and Hadoop. We are developing a BI module where we can store all the logs from different servers in HDFS.
For this I am using Flume. I just started trying... moreI am a newbie to Flume and Hadoop. We are developing a BI module where we can store all the logs from different servers in HDFS.
For this I am using Flume. I just started trying it out. Succesfully created a node but now I am willing to setup a HTTP source and a sink that will write incoming requests over HTTP to local file.
Any suggesstions?
Thanks in Advance/
I am trying to read messages on Kafka topic, but I am unable to read it. The process gets killed after sometime, without reading any messages.
Here is the rebalancing error which... moreI am trying to read messages on Kafka topic, but I am unable to read it. The process gets killed after sometime, without reading any messages.
Here is the rebalancing error which I get:
ERROR Error processing message, stopping consumer: (kafka.consumer.ConsoleConsumer$)
kafka.common.ConsumerRebalanceFailedException: topic-1395414642817-47bb4df2 can't rebalance after 4 retries
at kafka.consumer.ZookeeperConsumerConnector$ZKRebalancerListener.syncedRebalance(ZookeeperConsumerConnector.scala:428)
at kafka.consumer.ZookeeperConsumerConnector.kafka$consumer$ZookeeperConsumerConnector$$reinitializeConsumer(ZookeeperConsumerConnector.scala:718)
at kafka.consumer.ZookeeperConsumerConnector$WildcardStreamsHandler.<init>(ZookeeperConsumerConnector.scala:752)
at kafka.consumer.ZookeeperConsumerConnector.createMessageStreamsByFilter(ZookeeperConsumerConnector.scala:142)
at kafka.consumer.ConsoleConsumer$.main(ConsoleConsumer.scala:196)
at... less
I found many options recently, and interesting in their comparisons primarely by maturity and stability.
Crunch - https://github.com/cloudera/crunch
Scrunch... moreI found many options recently, and interesting in their comparisons primarely by maturity and stability.
Can anybody explain Apache Flume for me in a plain language? I'd appreciate an explanation with a practical example instead of abstract theoretical definitions, then I can... moreCan anybody explain Apache Flume for me in a plain language? I'd appreciate an explanation with a practical example instead of abstract theoretical definitions, then I can understand better.
What is it used for? At which stage of a BigData analysis is it used?
And what are prerequisites for learning it?
Please
As you would explain for a non-technical person
When I use Apache Flume, I get a millisecond timestamp rahter then a second timestamp. This is my flume conf file:# Name the components on this agenta1.sources = r1a1.sinks =... moreWhen I use Apache Flume, I get a millisecond timestamp rahter then a second timestamp. This is my flume conf file:# Name the components on this agenta1.sources = r1a1.sinks = k1a1.channels = c1# Describe/configure the sourcea1.sources.r1.type = org.apache.flume.source.http.HTTPSourcea1.sources.r1.port = 44444# Describe the sinka1.sinks.k1.type = hdfsa1.sinks.k1.hdfs.path = flume/ads/%y-%m-%d/%Ha1.sinks.k1.hdfs.fileType = DataStream# Use a channel which buffers events in memorya1.channels.c1.type = memorya1.channels.c1.capacity = 10000# Bind the source and sink to the channela1.sources.r1.channels = c1a1.sinks.k1.channel = c1Flume creates folder flume/ads/70-01-17/02. The folder contains files "FlumeData.timestamp" and this timestamp has twelve digits.I get an incorrect folder's name.What can I do?hadoop flume less