flume-ng性能优化与架构设计

如图1所示，一个flume-ng agent主要包括source，channel和sink三部分，三部分运行在java JVM中，JVM一般运行在linux‘操作系统上，因此，这些因素都可能影响最终的性能。flume-ng性能优化与架构设计，简单来讲，也主要包括以上部分。

agent.channels.memory_chan_1.type = memory
agent.channels.memory_chan_1.keep-alive = 30
agent.channels.memory_chan_1.transactionCapacity = 20000
agent.channels.memory_chan_1.byteCapacityBufferPercentage = 40

agent.channels.memory_chan_1.byteCapacity = 50000000
agent.channels.memory_chan_1.capacity = 500000

# Each sink‘s type must be defined
agent.sinks.hdfsSink_1.type = hdfs
agent.sinks.hdfsSink_1.channel = memory_chan_1
agent.sinks.hdfsSink_1.hdfs.path = /logdata/%Y%m%d/%{hostname}/%{filename}%{CRMLOG}
agent.sinks.hdfsSink_1.hdfs.filePrefix = %{filename}%{CRMLOG}
agent.sinks.hdfsSink_1.hdfs.rollInterval = 3600
agent.sinks.hdfsSink_1.hdfs.rollSize = 40000000
agent.sinks.hdfsSink_1.hdfs.rollCount = 0
agent.sinks.hdfsSink_1.hdfs.writeFormat = Writable
agent.sinks.hdfsSink_1.hdfs.fileType = CompressedStream
agent.sinks.hdfsSink_1.hdfs.batchSize = 10000
agent.sinks.hdfsSink_1.hdfs.serializer = avro_event
agent.sinks.hdfsSink_1.hdfs.threadsPoolSize = 100
agent.sinks.hdfsSink_1.hdfs.codeC = gzip

cat /etc/sysctl.conf    
kernel.shmall = 33554432
kernel.shmmax = 137438953472
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
fs.file-max = 6815744
fs.aio-max-nr = 1048576
net.ipv4.ip_local_port_range = 9000 65500
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144

net.core.wmem_max = 1048576

 vi /etc/security/limits.conf

# End of file
hadoop             soft    nproc           32047
hadoop             hard    nproc           36384
hadoop             soft    nofile          31024
hadoop             hard    nofile          65536

agent.sinks = flowSink-3-1 flowSink-3-2 flowSink-3-3 flowSink-3-4 flowSink-3-5
agent.sinkgroups = g1  
agent.sinkgroups.g1.sinks = flowSink-3-1 flowSink-3-2 flowSink-3-3 flowSink-3-4 flowSink-3-5  
agent.sinkgroups.g1.processor.type = load_balance  
agent.sinkgroups.g1.processor.selector = round_robin  
agent.sinkgroups.g1.processor.backoff = true
...
agent.sinks.flowSink-3-1.type = avro
agent.sinks.flowSink-3-1.channel = memory_chan_1
agent.sinks.flowSink-3-1.hostname = 127.0.0.1
agent.sinks.flowSink-3-1.port = 41451
agent.sinks.flowSink-3-1.batch-size = 1000

flume-ng性能优化与架构设计,布布扣,bubuko.com

flume-ng性能优化与架构设计

原文：http://blog.csdn.net/hijk139/article/details/22861667