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Flume >> mail # user >> flume ng error while going for hdfs sink


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Re: flume ng error while going for hdfs sink
Hi Amit,

Try:

*agent1.sinks.HDFS.hdfs.file.Type = DataStream
===change to==>
**agent1.sinks.HDFS.hdfs.fileType = DataStream*

Otherwise the fileType is SequenceFile by default.

Cheers,
Will

On Fri, Jul 6, 2012 at 2:44 AM, Amit Handa <[EMAIL PROTECTED]> wrote:

> Hi,
>
> @Mike thanks for ur reply.
>
> 1) After executing Flume-ng agent, and avro client, File is created in
> HDFS.
> I used today same flume-ng setup with hadoop 1.0.1.
> Now i m facing problem that through avro client i am sending normal text
> file. But inside HDFS File content is coming like as shown below. I want in
> HDFS this file content should be in normal text format
> HDFS File Content:
> *"SEQ^F!org.apache.hadoop.io.LongWritable"org.apache.hadoop.io.BytesWritable^@^@^@^@^@^@^UªG^Oòá~v¾­z/<87>^[~ð^@^@^@)^@^@^@^H^@^@^A8[<8e>)Ú^@^@^@^]We
> are modifying the file now^@^@^@*
>
> Given txt file content through AvroClient is
>                 * We are modifying the file now*
>
> Kindly provide ur inputs to resolve this issue.
> my flume.conf file content is as folows:
> *
> # Define a memory channel called ch1 on agent1
> agent1.channels.ch1.type = memory
>
>
> # Define an Avro source called avro-source1 on agent1 and tell it
> # to bind to 0.0.0.0:41414. Connect it to channel ch1.
> agent1.sources.avro-source1.channels = ch1
> agent1.sources.avro-source1.type = avro
> agent1.sources.avro-source1.selector.type=replicating
>
> agent1.sources.avro-source1.bind = 0.0.0.0
> agent1.sources.avro-source1.port = 41414
>
>
> # Define a hdfs sink that simply logs all events it receives
> # and connect it to the other end of the same channel.
> agent1.sinks.HDFS.channel = ch1
> agent1.sinks.HDFS.type = hdfs
> agent1.sinks.HDFS.hdfs.path > hdfs://localhost:54310/user/hadoop-node1/flumeTest
> agent1.sinks.HDFS.hdfs.file.Type = DataStream
> agent1.sinks.HDFS.hdfs.file.Format = Text
>
>
> # Finally, now that we've defined all of our components, tell
> # agent1 which ones we want to activate.
> agent1.channels = ch1
> agent1.sources = avro-source1
> agent1.sinks = HDFS*
>
>
> 2) AT Flume NG Side still i am getting security related IO Exception. when
> i start flume-ng using above configuration file.
> Exception log coming at flume-ng side is :
> 2012-07-06 11:14:42,957 (conf-file-poller-0) [DEBUG -
> org.apache.hadoop.security.Groups.<init>(Groups.java:59)] Group mapping
> impl=org.apache.hadoop.security.ShellBasedUnixGroupsMapping;
> cacheTimeout=300000
> 2012-07-06 11:14:42,961 (conf-file-poller-0) [DEBUG -
> org.apache.hadoop.conf.Configuration.<init>(Configuration.java:227)]
> java.io.IOException: config()
>
>     at org.apache.hadoop.conf.Configuration.<init>(Configuration.java:227)
>     at org.apache.hadoop.conf.Configuration.<init>(Configuration.java:214)
>     at
> org.apache.hadoop.security.UserGroupInformation.ensureInitialized(UserGroupInformation.java:187)
>     at
> org.apache.hadoop.security.UserGroupInformation.isSecurityEnabled(UserGroupInformation.java:239)
>     at
> org.apache.hadoop.security.KerberosName.<clinit>(KerberosName.java:83)
>     at
> org.apache.hadoop.security.UserGroupInformation.initialize(UserGroupInformation.java:212)
>
>     at
> org.apache.hadoop.security.UserGroupInformation.ensureInitialized(UserGroupInformation.java:187)
>     at
> org.apache.hadoop.security.UserGroupInformation.isSecurityEnabled(UserGroupInformation.java:239)
>     at
> org.apache.flume.sink.hdfs.HDFSEventSink.authenticate(HDFSEventSink.java:516)
>     at
> org.apache.flume.sink.hdfs.HDFSEventSink.configure(HDFSEventSink.java:239)
>     at org.apache.flume.conf.Configurables.configure(Configurables.java:41)
>     at
> org.apache.flume.conf.properties.PropertiesFileConfigurationProvider.loadSinks(PropertiesFileConfigurationProvider.java:373)
>     at
> org.apache.flume.conf.properties.PropertiesFileConfigurationProvider.load(PropertiesFileConfigurationProvider.java:223)
>     at
> org.apache.flume.conf.file.AbstractFileConfigurationProvider.doLoad(AbstractFileConfigurationProvider.java:123)