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From Chhaya Vishwakarma <Chhaya.Vishwaka...@lntinfotech.com>
Subject flume to HDFS log event write
Date Wed, 09 Jan 2013 10:02:35 GMT
hi,

I am using Flume log4j appender to write log events to HDFS but it contains some junk value
and I am not able to see anything other than log message no timestamp.

Here is my configuration
Log4j.properties

log4j.logger.log4jExample= DEBUG,out2
log4j.appender.out2 = org.apache.flume.clients.log4jappender.Log4jAppender
log4j.appender.out2.Port = 41414
log4j.appender.out2.Hostname = 172.20.104.223

here is agent configuration
a1.sources = r1
a1.sinks = k1
a1.channels = c1

#sources
a1.sources.r1.type = avro
a1.sources.r1.bind =172.20.104.226
a1.sources.r1.port= 41414
a1.sources.r1.restart =true
a1.sources.r1.batchsize=10000

# Describe the sink
a1.sinks.k1.type = hdfs
a1.sinks.k1.hdfs.path=hdfs://172.20.104.226:8020/flumeinput/%{host}
a1.sinks.k1.hdfs.file.Type=DataStream
a1.sinks.k1.hdfs.writeFormat=Writable
a1.sinks.k1.hdfs.rollCount=10000
a1.sinks.k1.serializer=TEXT

# Use a channel which buffers events in memory
a1.channels.c1.type = file
a1.channels.c1.capacity = 10000
a1.channels.c1.transactionCapacity = 10000

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

Expected output
[2013-01-09 15:15:45,457] - [main] DEBUG log4jExample Current data unavailalbe, using cached
values
[2013-01-09 15:15:45,458] - [main] INFO  log4jExample Hello this is an info message
[2013-01-09 15:15:45,460] - [main] ERROR log4jExample Dabase unavaliable, connetion lost
[2013-01-09 15:15:45,461] - [main] WARN  log4jExample Attention!! Application running in debugmode
[2013-01-09 15:15:45,463] - [main] DEBUG log4jExample Current data unavailalbe, using cached
values
[2013-01-09 15:15:45,465] - [main] INFO  log4jExample Hello this is an info message
[2013-01-09 15:15:45,467] - [main] ERROR log4jExample Dabase unavaliable, connetion lost
[2013-01-09 15:15:45,468] - [main] WARN  log4jExample Attention!! Application running in debugmode
[2013-01-09 15:15:45,470] - [main] DEBUG log4jExample Current data unavailalbe, using cached
values

But getting this
Output on HDFS
SEQ!org.apache.hadoop.io.LongWritable"org.apache.hadoop.io.BytesWritable������+�AE����9<‑��-Current
data unavailalbe, using cached values)<‑��Hello this is an info message.<‑��"Dabase
unavaliable, connetion lost8<‑��,Attention!! Application running in debugmode9<‑��-Current
data unavailalbe, using cached values)<‑��Hello this is an info message.<‑��"Dabase
unavaliable, connetion lost8<‑��,Attention!! Application running in debugmode9<‑��-Current
data unavailalbe, using cached values)<‑��‑Hello this is an info message.<‑��‑"Dabase
unavaliable, connetion lost8<‑��­,Attention!! Application running in debugmode9<‑��
-Current data unavailalbe, using cached values)<‑�� Hello this is an info message.<‑��!"Dabase
unavaliable, connetion lost8<‑��",Attention!! Application running in debugmode9<‑��"-Current
data unavailalbe, using cached values)<‑��#Hello this is an info message.<‑��#"Dabase
unavaliable, connetion lost8<‑��$,Attention!! Application running in debugmode9<‑��$-Current
data unavailalbe, using cached values)<‑��%Hello this is an info message.<‑��%"Dabase
unavaliable, connetion lost8<‑��%,Attention!! Application running in debugmode9<‑��&-Current
data unavailalbe, using cached values)<‑��&Hello this is an info message.<‑��&apos;"Dabase
unavaliable, connetion lost8<‑��(,Attention!! Application running in debugmode



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