5

私はApache Flumeが初めてです。
jsonを(httpソースとして)取得し、それを解析して、コンテンツに従ってhdfsの動的パスに保存する方法を確認しようとしています。
例:
json が次の場合:

[{   
  "field1" : "value1",
  "field2" : "value2"
}]

hdfs パスは次のようになります:
/some-default-root-path/value1/value2/some-value-name-file
それを可能にするフルームの設定はありますか?

これが私の現在の構成です(http経由でjsonを受け入れ、タイムスタンプに従ってパスに保存します):

#flume.conf: http source, hdfs sink

# Name the components on this agent
a1.sources = r1
a1.sinks = k1
a1.channels = c1

# Describe/configure the source
a1.sources.r1.type =  org.apache.flume.source.http.HTTPSource
a1.sources.r1.port = 9000
#a1.sources.r1.handler = org.apache.flume.http.JSONHandler

# Describe the sink
a1.sinks.k1.type = hdfs
a1.sinks.k1.hdfs.path = /user/uri/events/%y-%m-%d/%H%M/%S
a1.sinks.k1.hdfs.filePrefix = events-
a1.sinks.k1.hdfs.round = true
a1.sinks.k1.hdfs.roundValue = 10
a1.sinks.k1.hdfs.roundUnit = minute

# Use a channel which buffers events in memory
a1.channels.c1.type = memory
a1.channels.c1.capacity = 1000
a1.channels.c1.transactionCapacity = 100

# Bind the source and sink to the channel
a1.sources.r1.channels = c1
a1.sinks.k1.channel = c1

ありがとう!

4

1 に答える 1

8

解決策はhdfs シンクのフルームドキュメントにありました。

改訂された構成は次のとおりです。

#flume.conf: http source, hdfs sink

# Name the components on this agent
a1.sources = r1
a1.sinks = k1
a1.channels = c1

# Describe/configure the source
a1.sources.r1.type =  org.apache.flume.source.http.HTTPSource
a1.sources.r1.port = 9000
#a1.sources.r1.handler = org.apache.flume.http.JSONHandler

# Describe the sink
a1.sinks.k1.type = hdfs
a1.sinks.k1.hdfs.path = /user/uri/events/%{field1}
a1.sinks.k1.hdfs.filePrefix = events-
a1.sinks.k1.hdfs.round = true
a1.sinks.k1.hdfs.roundValue = 10
a1.sinks.k1.hdfs.roundUnit = minute

# Use a channel which buffers events in memory
a1.channels.c1.type = memory
a1.channels.c1.capacity = 1000
a1.channels.c1.transactionCapacity = 100

# Bind the source and sink to the channel
a1.sources.r1.channels = c1
a1.sinks.k1.channel = c1  

そしてカール:

curl -X POST -d '[{  "headers" : {           "timestamp" : "434324343", "host" :"random_host.example.com", "field1" : "val1"            },  "body" : "random_body"  }]' localhost:9000
于 2013-02-13T04:56:43.213 に答える