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From Nickolay Kolev <lem0...@gmail.com>
Subject Re: Problems with Flume on windows with HTTP source
Date Fri, 21 Jun 2013 06:34:11 GMT
Hi Hari and the all members of this list,

Thanks for pointing me that error. This is actually my second attempt to
use Apache Flume - with avro client. The symptoms are the same - the is no
listener on the specified port and I am not able to connect.

I started to evaluate Flume just yesterday and many things are new to me
and probably I do many mistakes. I want to point that I use Flume 1.3.1
compiled by me if this is important to be mentioned. I have tested too with
the official binary from Flume web site but the results are the same.

Here is what I do to test HTTP source:

my config file (httppost.conf):
agent1.sources = r1
agent1.channels = ch1
agent1.sinks = k1

agent1.sources.r1.type = org.apache.flume.source.http.HTTPSource
agent1.sources.r1.port = 9001
agent1.sources.r1.channels = ch1
#agent1.sources.r1.handler = org.example.rest.RestHandler
agent1.sources.r1.handler = org.apache.flume.http.JSONHandler
agent1.sources.r1.handler.nickname = json handler

agent1.sinks.k1.type = file_roll
agent1.sinks.k1.channel = ch1
agent1.sinks.k1.sink.directory =
C:\\Projects\\nickyk\\apache-flume-1.3.1-bin\\log

agent1.channels.ch1.type = memory
agent1.channels.ch1.capacity = 10000
agent1.channels.ch1.transactionCapacity = 1000

my server bat file:
set FLUME_HOME=C:\Projects\nickyk\apache-flume-1.3.1-bin\
set JAVA="C:\Java\jdk1.6.0_45\bin\java.exe"
set JAVA_OPTS=-Xmx60m
set CONF=%FLUME_HOME%\conf\httppost.conf
set AGENT=agent1

%JAVA% %JAVA_OPTS%
-Dlog4j.configuration=file:///%FLUME_HOME%\conf\log4j.properties -cp
"%FLUME_HOME%\lib\*" org.apache.flume.node.Application -f %CONF% -n %AGENT%

How I test:

server console:
>"C:\Java\jdk1.6.0_45\bin\java.exe" -Xmx60m
-Dlog4j.configuration=file:///C:\Projects\nickyk\apache-flume-1.3.1-bin\\conf\log4j.properties
-cp "C:\Projects\nickyk\apache-flume-1.3.1-bin\\lib\*"
org.apache.flume.node.Application -f
C:\Projects\nickyk\apache-flume-1.3.1-bin\\conf\httppost.conf -n agent1

client console:
>C:\Projects\nickyk\apache-flume-1.3.1-bin>curl -X POST -H "Content-Type:
application/json" -d "[{ \"headers\" : { \"timestamp\" : \"434324343\",
\"host\" : \"random_host.example.co
m\" }, \"body\" : \"random_body\" }, { \"headers\" : { \"namenode\" : \"
namenode.example.com\", \"datanode\" : \"random_datanode.example.com\" },
\"body\" : \"really_random_body\"
}]" http://localhost:9001
curl: (7) Failed connect to localhost:9001; No error

If I understand correct the documentation I should expect that on the
specified port (9001) it must be listener that will accept POST requests?
Is this correct?
Do I miss some important aspects that are critical to run Flume?

Thanks in advance for your help.


best regards,
nickolay kolev



On Thu, Jun 20, 2013 at 9:07 PM, Hari Shreedharan <hshreedharan@cloudera.com
> wrote:

>  Does not look like you are using the http source at all. Your source type
> needs to be HTTP
>
>
> Cheers,
> Hari
>
> On Thursday, June 20, 2013 at 8:57 AM, Nickolay Kolev wrote:
>
> Hi all,
> I am new to flume and all that logging stuff and probably many things are
> unclear to me despite I read the docs.
> I want to run Flume on windows server to create proof of concept solution.
> I was able to compile it successfully. I was able to make successful test
> with netcat.
> Next test that i wanted to do is with http source but unfortunately it did
> not pass.
>  Here is what I do:
>
> my server config (httppost.conf):
> agent1.sources = r1
> agent1.channels = memoryChannel
> agent1.sinks = k1
>
> agent1.sources.r1.type = avro
> agent1.sources.r1.bind = localhost
> agent1.sources.r1.port = 9003
>
> agent1.sinks.k1.type = file_roll
> agent1.sinks.k1.sink.directory =
> C:\\Projects\\nickyk\\apache-flume-1.3.1-bin\\log
>
> agent1.channels.memoryChannel.type = memory
> agent1.channels.memoryChannel.capacity = 10000
> agent1.channels.memoryChannel.transactionCapacity = 1000
>
>
> agent1.sources.r1.channels = memoryChannel
> agent1.sinks.k1.channel = memoryChannel
>
> I run the server with this bat file:
> set FLUME_HOME=C:\Projects\nickyk\apache-flume-1.3.1-bin\
> set JAVA="C:\Java\jdk1.6.0_45\bin\java.exe"
> set JAVA_OPTS=-Xmx60m
> set CONF=%FLUME_HOME%\conf\httppost.conf
> set AGENT=agent1
>
> %JAVA% %JAVA_OPTS%
> -Dlog4j.configuration=file:///%FLUME_HOME%\conf\log4j.properties -cp
> "%FLUME_HOME%\lib\*" org.apache.flume.node.Application -f %CONF% -n %AGENT%
>
> netstat does not show any listener on port 9003? Is this normal or there
> must be a listener?
>
> I run avro client with this bat file:
> set FLUME_HOME=C:\Projects\nickyk\apache-flume-1.3.1-bin
> set JAVA="C:\Java\jdk1.6.0_45\bin\java.exe"
> set JAVA_OPTS=-Xmx60m
> set AVRO_HOST=localhost
> set AVRO_PORT=9003
> set SENDFILE=%FLUME_HOME%\logs\data.log
> set HEADFILE=%FLUME_HOME%\conf\header.txt
>
> %JAVA%  %JAVA_OPTS%
> -Dlog4j.configuration=file:///%FLUME_HOME%\conf\log4j.properties -cp
> "%FLUME_HOME%\lib\*" org.apache.flume.client.avro.AvroCLIClient -H
> %AVRO_HOST% -p %AVRO_PORT%  -F %SENDFILE%  --headerFile %HEADFILE%
>
>
> Then I get this output:
> C:\Projects\nickyk\apache-flume-1.3.1-bin>"C:\Java\jdk1.6.0_45\bin\java.exe"
> -Xmx60m
> -Dlog4j.configuration=file:///C:\Projects\nickyk\apache-flume-1.3.1-bin\conf\log4j.properties
> -cp "C:\Projects\nickyk\apache-flume-1.3.1-bin\lib\*"
> org.apache.flume.client.avro.AvroCLIClient -H  localhost -p 9003  -F
> C:\Projects\nickyk\apache-flume-1.3.1-bin\logs\data.log --headerFile
> C:\Projects\nickyk\apache-flume-1.3.1-bin\conf\header.txt
> 2013-06-20 17:55:58,285 (main) [DEBUG -
> org.apache.flume.client.avro.AvroCLIClient.parseHeaders(AvroCLIClient.java:101)]
> Inserting Header Key [filename] header value [datalog]
> 2013-06-20 17:55:58,287 (main) [DEBUG -
> org.apache.flume.client.avro.AvroCLIClient.parseHeaders(AvroCLIClient.java:101)]
> Inserting Header Key [host] header value [zhouhh]
> 2013-06-20 17:55:58,295 (main) [DEBUG -
> org.apache.flume.api.NettyAvroRpcClient.configure(NettyAvroRpcClient.java:420)]
> Batch size string = 5
> 2013-06-20 17:55:59,358 (main) [ERROR -
> org.apache.flume.client.avro.AvroCLIClient.main(AvroCLIClient.java:79)]
> Unable to open connection to Flume. Exception follows.
> org.apache.flume.FlumeException: NettyAvroRpcClient { host: localhost,
> port: 9003 }: RPC connection error
>         at
> org.apache.flume.api.NettyAvroRpcClient.connect(NettyAvroRpcClient.java:117)
>         at
> org.apache.flume.api.NettyAvroRpcClient.connect(NettyAvroRpcClient.java:93)
>         at
> org.apache.flume.api.NettyAvroRpcClient.configure(NettyAvroRpcClient.java:507)
>         at
> org.apache.flume.api.RpcClientFactory.getDefaultInstance(RpcClientFactory.java:169)
>         at
> org.apache.flume.client.avro.AvroCLIClient.run(AvroCLIClient.java:180)
>         at
> org.apache.flume.client.avro.AvroCLIClient.main(AvroCLIClient.java:71)
> Caused by: java.io.IOException: Error connecting to localhost/
> 127.0.0.1:9003
>         at
> org.apache.avro.ipc.NettyTransceiver.getChannel(NettyTransceiver.java:261)
>         at
> org.apache.avro.ipc.NettyTransceiver.<init>(NettyTransceiver.java:203)
>         at
> org.apache.avro.ipc.NettyTransceiver.<init>(NettyTransceiver.java:152)
>         at
> org.apache.flume.api.NettyAvroRpcClient.connect(NettyAvroRpcClient.java:106)
>         ... 5 more
> Caused by: java.net.ConnectException: Connection refused: no further
> information
>         at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>         at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:599)
>         at
> org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.connect(NioClientSocketPipelineSink.java:396)
>         at
> org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.processSelectedKeys(NioClientSocketPipelineSink.java:358)
>         at
> org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.run(NioClientSocketPipelineSink.java:274)
>         at
> org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
>         at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
>         at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
>         at java.lang.Thread.run(Thread.java:662)
> 2013-06-20 17:55:59,369 (main) [DEBUG -
> org.apache.flume.client.avro.AvroCLIClient.main(AvroCLIClient.java:84)]
> Exiting
>
>
> My question is what I am doing wrong and what I need to test in order to
> fix this situatioin.
>
> Thanks in advance.
>
> best regards,
>
>
>

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