globals {
daemonize = yes #以背景的方式運作
setuid = yes
user = hadoop #運作gmond的使用者
debug_level = 0 #調試級别
max_udp_msg_len = 1472
mute = no #啞巴，本節點将不會再廣播任何自己收集到的資料在網絡上
deaf = no #聾子，本節點不會再接收任何其他節點廣播的資料包
host_dmax = 0 /*secs */
cleanup_threshold = 300 /*secs */
gexec = no #是否使用gexec
send_metadata_interval = 10 #節點發送間隔/*secs*/
}
/* If a cluster attribute is specified, then all gmond hosts are wrapped inside
* of a tag. If you do not specify a cluster tag, then all will
* NOT be wrapped inside of a tag. */
cluster {
name = "hadoop" #本節點屬于哪個cluster
owner = "unspecified" #誰是該節點的所有者
latlong = "unspecified" #在地球上的坐标
url = "unspecified"
}
/* The host section describes attributes of the host, like the location */
host {
location = "unspecified"
}
/* Feel free to specify as many udp_send_channels as you like. Gmond
used to only support having a single channel */
udp_send_channel { #udp包的發送通道
host = master #多點傳播，工作在239.2.11.71通道下。單點傳播，則指向主節點，單點傳播模式下也可以配置多個udp_send_channel
port = 8649 #監聽端口
ttl = 1
}
/* You can specify as many udp_recv_channels as you like as well. */
udp_recv_channel { #接受UDP包配置
# mcast_join = 239.2.11.71
port = 8649
# bind = 239.2.11.71
}
# syntax: [prefix].[source|sink|jmx].[instance].[options]
# See package.html for org.apache.hadoop.metrics2 for details
*.sink.file.class=org.apache.hadoop.metrics2.sink.FileSink
#namenode.sink.file.filename=namenode-metrics.out
#datanode.sink.file.filename=datanode-metrics.out
#jobtracker.sink.file.filename=jobtracker-metrics.out
#tasktracker.sink.file.filename=tasktracker-metrics.out
#maptask.sink.file.filename=maptask-metrics.out
#reducetask.sink.file.filename=reducetask-metrics.out
# Below are for sending metrics to Ganglia
#
# for Ganglia 3.0 support
# *.sink.ganglia.class=org.apache.hadoop.metrics2.sink.ganglia.GangliaSink30
#
# for Ganglia 3.1 support
*.sink.ganglia.class=org.apache.hadoop.metrics2.sink.ganglia.GangliaSink31
*.sink.ganglia.period=10
# default for supportsparse is false
*.sink.ganglia.supportsparse=true
*.sink.ganglia.slope=jvm.metrics.gcCount=zero,jvm.metrics.memHeapUsedM=both
*.sink.ganglia.dmax=jvm.metrics.threadsBlocked=70,jvm.metrics.memHeapUsedM=40
namenode.sink.ganglia.servers=master:8649
datanode.sink.ganglia.servers=master:8649
jobtracker.sink.ganglia.servers=master:8649
tasktracker.sink.ganglia.servers=master:8649
maptask.sink.ganglia.servers=master:8649
reducetask.sink.ganglia.servers=master:8649
# See http://wiki.apache.org/hadoop/GangliaMetrics
# Make sure you know whether you are using ganglia 3.0 or 3.1.
# If 3.1, you will have to patch your hadoop instance with HADOOP-4675
# And, yes, this file is named hadoop-metrics.properties rather than
# hbase-metrics.properties because we're leveraging the hadoop metrics
# package and hadoop-metrics.properties is an hardcoded-name, at least
# for the moment.
#
# See also http://hadoop.apache.org/hbase/docs/current/metrics.html
# Configuration of the "hbase" context for null
# hbase.class=org.apache.hadoop.metrics.spi.NullContext
# Configuration of the "hbase" context for file
# hbase.class=org.apache.hadoop.hbase.metrics.file.TimeStampingFileContext
# hbase.period=10
# hbase.fileName=/tmp/metrics_hbase.log
# HBase-specific configuration to reset long-running stats (e.g. compactions)
# If this variable is left out, then the default is no expiration.
hbase.extendedperiod = 3600
# Configuration of the "hbase" context for ganglia
# Pick one: Ganglia 3.0 (former) or Ganglia 3.1 (latter)
# hbase.class=org.apache.hadoop.metrics.ganglia.GangliaContext
hbase.class=org.apache.hadoop.metrics.ganglia.GangliaContext31
hbase.period=10
hbase.servers=master:8649
# Configuration of the "jvm" context for null
# jvm.class=org.apache.hadoop.metrics.spi.NullContext
# Configuration of the "jvm" context for file
# jvm.class=org.apache.hadoop.hbase.metrics.file.TimeStampingFileContext
# jvm.period=10
# jvm.fileName=/tmp/metrics_jvm.log
# Configuration of the "jvm" context for ganglia
# Pick one: Ganglia 3.0 (former) or Ganglia 3.1 (latter)
# jvm.class=org.apache.hadoop.metrics.ganglia.GangliaContext
jvm.class=org.apache.hadoop.metrics.ganglia.GangliaContext31
jvm.period=10
jvm.servers=master:8649
# Configuration of the "rpc" context for null
# rpc.class=org.apache.hadoop.metrics.spi.NullContext
# Configuration of the "rpc" context for file
# rpc.class=org.apache.hadoop.hbase.metrics.file.TimeStampingFileContext
# rpc.period=10
# rpc.fileName=/tmp/metrics_rpc.log
# Configuration of the "rpc" context for ganglia
# Pick one: Ganglia 3.0 (former) or Ganglia 3.1 (latter)
# rpc.class=org.apache.hadoop.metrics.ganglia.GangliaContext
rpc.class=org.apache.hadoop.metrics.ganglia.GangliaContext31
rpc.period=10
rpc.servers=master:8649
