I drilled the error down to this message:
Mkdirs failed to create
file:/home/pi/datatorrent/apps/application_1498123667708_0001/checkpoints/2
I guess i have something buggy in my configuration does any of you know
how to solve this error? Should I start the application with the same
user I'm starting yarn?
Cheers
Manfred.
Am 10.06.2017 um 14:50 schrieb a...@x5h.eu:
>
> Hello,
>
> you were completely right it seems that there are problems with my
> test scenario regarding the hadoop, yarn installation and the
> application never starts. I found this entries in the log:
>
> 2017-06-10 14:33:02,623 INFO
> org.apache.hadoop.yarn.server.resourcemanager.ApplicationMasterService:
> Registering app attempt : appattempt_1495629011552_0011_000001
> 2017-06-10 14:33:02,623 INFO
> org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl:
> appattempt_1495629011552_0011_000001 State change from NEW to SUBMITTED
> 2017-06-10 14:33:02,624 INFO
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue:
> not starting application as amIfStarted exceeds amLimit
> 2017-06-10 14:33:02,624 INFO
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue:
> Application added - appId: application_1495629011552_0011 user:
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue$User@11536dc,
> leaf-queue: default #user-pending-applications: 1
> #user-active-applications: 1 #queue-pending-applications: 1
> #queue-active-applications: 1
>
> Therefore the application never leaves the state "undefined". Since
> the local tests were running fine and the launch of the application
> didn't raise an error I missed the problem with the hadoop
> installation. Thanks for the correct hint to look at the hadoop cluster.
>
> Cheers
> Manfred.
>
>
> Am 09.06.2017 um 15:23 schrieb vikram patil:
>> 1) Are you doing it on your local environment?
>> 2) If you are doing it locally I would suggest following options
>> 1) If you dont want to create queue on rabbitmq by yourself .
>> Set queuename on operator
>> in.setQueueName("YOUR_QUEUE_NAME" )
>> Operator will do following steps :
>> * Create Durable Queue in RabbitMQ
>> * You have specfied exchange and exchangeType .
>> So it will create an exchange using this
>> information and bind created queue with exchange with default
>> routing key which will be "".
>> Right now it must be creating auto generated unique named
>> queue for you.
>>
>> 2) You can create your own exchange and durable queue using
>> rabbitmq admin . You will have to install rabbitmq plugins for that.
>> You can use it to publish some test data as well.
>>
>> Using apex-cli you can check status of your application, if its
>> failing then you should check logs from userlogs in hadoop logs
>> directory.
>>
>> Thanks & Regards,
>> Vikram
>>
>>
>>
>>
>> On Fri, Jun 9, 2017 at 6:42 PM, <a...@x5h.eu <mailto:a...@x5h.eu>> wrote:
>>
>> Finally got rid of all errors but now I have the problem that the
>> apex application does not seem to register at the RabbitMQ exchange.
>>
>> This is my code:
>>
>> @ApplicationAnnotation(name="RabbitMQ2HDFS")
>> public class RabbitMQApplication implements StreamingApplication
>> {
>>
>> @Override
>> public void populateDAG(DAG dag, Configuration conf)
>> {
>> RabbitMQInputOperator in = dag.addOperator("rabbitInput",new
>> RabbitMQInputOperator());
>> in.setHost("localhost");
>> //in.setPort(5672);
>> in.setExchange("apex");
>> in.setExchangeType("fanout");
>> ConsoleOutputOperator console = dag.addOperator("console",
>> new ConsoleOutputOperator());
>> dag.addStream("rand_console",in.outputPort, console.input);
>>
>> }
>>
>> }
>>
>> If I launch the application everthing executes without an error
>> but if i list the bindings on the exchange, there is none.
>>
>> Anyone even an idea how i can start to debug this?
>>
>> Cheers
>> Manfred.
>>
>>
>>
>> Am 08.06.2017 um 18:04 schrieb a...@x5h.eu <mailto:a...@x5h.eu>:
>>>
>>> Okay i found the error, I copied the LineOutputOperator.java
>>>
>>> <https://github.com/DataTorrent/examples/blob/master/tutorials/jmsActiveMQ/src/main/java/com/example/jmsActiveMQ/LineOutputOperator.java>
>>> from the jmsActiveMQ example and found there
>>> public class LineOutputOperator extends
>>> AbstractFileOutputOperator<String>
>>>
>>> Instead i took the LineOutputOperator.java
>>>
>>> <https://github.com/DataTorrent/examples/blob/master/tutorials/kafka/src/main/java/com/example/myapexapp/LineOutputOperator.java>from
>>> the Kafka 0.9 example there the class is correctly defined for
>>> the RabbitMQInputOperator
>>>
>>> So far so good now it compiles without errors.
>>>
>>> Cheers
>>>
>>> Manfred
>>>
>>> Am 08.06.2017 um 17:38 schrieb a...@x5h.eu <mailto:a...@x5h.eu>:
>>>>
>>>> I still don't get it completely: (The rest of the code is in
>>>> the Email before, this is only the necessary sample)
>>>>
>>>> 1. dag.addStream("test", rabbitInput.output, out.input);
>>>> Results in the following error:
>>>> [ERROR] symbol: variable output
>>>> [ERROR] location: variable rabbitInput of type
>>>> com.datatorrent.contrib.rabbitmq.RabbitMQInputOperator
>>>>
>>>> 2. dag.addStream("test", rabbitInput.outputPort, out.input);
>>>> Results in the following error:
>>>> [ERROR]
>>>>
>>>> /home/pi/apex/rabbitMQ/src/main/java/com/example/rabbitMQ/RabbitMQApplication.java:[31,8]
>>>> no suitable method found for
>>>>
>>>> addStream(java.lang.String,com.datatorrent.api.DefaultOutputPort<byte[]>,com.datatorrent.api.DefaultInputPort<java.lang.String>)
>>>> [ERROR] method
>>>>
>>>> com.datatorrent.api.DAG.<T>addStream(java.lang.String,com.datatorrent.api.Operator.OutputPort<?
>>>> extends T>,com.datatorrent.api.Operator.InputPort<? super
>>>> T>...) is not applicable
>>>> [ERROR] (inferred type does not conform to upper bound(s)
>>>> [ERROR] inferred: byte[]
>>>> [ERROR] upper bound(s):
>>>> java.lang.String,java.lang.Object)
>>>> [ERROR] method
>>>>
>>>> com.datatorrent.api.DAG.<T>addStream(java.lang.String,com.datatorrent.api.Operator.OutputPort<?
>>>> extends T>,com.datatorrent.api.Operator.InputPort<? super
>>>> T>) is not applicable
>>>> [ERROR] (inferred type does not conform to upper bound(s)
>>>> [ERROR] inferred: byte[]
>>>> [ERROR] upper bound(s):
>>>> java.lang.String,java.lang.Object)
>>>> [ERROR] method
>>>>
>>>> com.datatorrent.api.DAG.<T>addStream(java.lang.String,com.datatorrent.api.Operator.OutputPort<?
>>>> extends T>,com.datatorrent.api.Operator.InputPort<? super
>>>> T>,com.datatorrent.api.Operator.InputPort<? super T>) is
>>>> not applicable
>>>> [ERROR] (cannot infer type-variable(s) T
>>>> [ERROR] (actual and formal argument lists differ in
>>>> length))
>>>>
>>>>
>>>>
>>>> It seems that on the one hand the RabbitMQInputOperator.class
>>>> does not have an output method and on the other hand the
>>>> addStream method only accepts outputPort combined with
>>>> inputPort methods or output and input methods of the
>>>> corresponding classes. Does that mean I only can use a class
>>>> that implements inputPort method for this example?
>>>>
>>>> Cheers
>>>>
>>>> Manfred.
>>>>
>>>>
>>>>
>>>> Am 08.06.2017 um 10:05 schrieb a...@x5h.eu <mailto:a...@x5h.eu>:
>>>>>
>>>>> Sorry the two Snippets below where from different iterations.
>>>>> The Error I get is the following:
>>>>>
>>>>> [ERROR]
>>>>>
>>>>> /home/pi/apex/rabbitMQ/src/main/java/com/example/rabbitMQ/RabbitMQApplication.java:[31,38]
>>>>> cannot find symbol
>>>>> [ERROR] symbol: variable output
>>>>> [ERROR] location: variable rabbitInput of type
>>>>> com.datatorrent.contrib.rabbitmq.RabbitMQInputOperator
>>>>>
>>>>> My Code is as follows:
>>>>>
>>>>>
>>>>> package com.example.rabbitMQ;
>>>>>
>>>>> import org.apache.hadoop.conf.Configuration;
>>>>>
>>>>> import com.datatorrent.contrib.rabbitmq.RabbitMQInputOperator;
>>>>> import com.datatorrent.api.annotation.ApplicationAnnotation;
>>>>> import com.datatorrent.api.StreamingApplication;
>>>>> import com.datatorrent.api.DAG;
>>>>> import com.datatorrent.lib.io.jms.JMSStringInputOperator;
>>>>>
>>>>> @ApplicationAnnotation(name="RabbitMQ2HDFS")
>>>>> public class RabbitMQApplication implements StreamingApplication
>>>>> {
>>>>>
>>>>> @Override
>>>>> public void populateDAG(DAG dag, Configuration conf)
>>>>> {
>>>>>
>>>>> RabbitMQInputOperator rabbitInput =
>>>>> dag.addOperator("Consumer",RabbitMQInputOperator.class);
>>>>> rabbitInput.setHost("localhost");
>>>>> rabbitInput.setPort(5672);
>>>>> rabbitInput.setExchange("");
>>>>> rabbitInput.setQueueName("hello");
>>>>> LineOutputOperator out = dag.addOperator("fileOut", new
>>>>> LineOutputOperator());
>>>>>
>>>>> dag.addStream("data", rabbitInput.output, out.input);
>>>>> }
>>>>> }
>>>>>
>>>>> Cheers
>>>>>
>>>>> Manfred.
>>>>>
>>>>>
>>>>>
>>>>> Am 08.06.2017 um 04:34 schrieb vikram patil:
>>>>>> Hi,
>>>>>> dag.addStream() is actually used to create stream of from one
>>>>>> Operator output port to other operators input port.
>>>>>> RabbitMQInputOperator consumer = dag.addOperator("Consumer",
>>>>>> RabbitMQInputOperator.class);
>>>>>> dag.addStream("data", *rabbitInput*.output, out.input);
>>>>>> Looks like your operator name is incorrect? I see in your
>>>>>> code snippet above, name of of RabbiMQInputOperator
>>>>>> is *"Consumer".*
>>>>>>
>>>>>> In property name, you need to provide operator name you have
>>>>>> specified in addOperator(*"NAME OF THE OPERATOR"*,
>>>>>> RabbitMQInputOperator.class) api call.
>>>>>>
>>>>>> dt.operator.*rabbitMQIn*.prop.tuple_blast ( Syntax is
>>>>>> correct correct given your operator name is correct ).
>>>>>>
>>>>>> ( It should be dt.operator.*Consumer*.prop.tuple_blast based
>>>>>> on your code snippet ).
>>>>>>
>>>>>> I think tests which are provided in the Apache Malhar are
>>>>>> very detailed, they run in local mode as unit tests so we
>>>>>> have mocked actual rabbitmq by custom message publisher.
>>>>>>
>>>>>> For timebeing you set only queuename and hostname as
>>>>>>
>>>>>> // set your rabbitmq host .
>>>>>> consumer.setHost("localhost"); // set your rabbitmq port
>>>>>> consumer.setPort(5672) // It depends on your rabbitmq
>>>>>> producer configuration but by default // its default exchange
>>>>>> with "" ( No Name is provided ). consumer.setExchange(""); //
>>>>>> set your queue name consumer.setQueueName("YOUR_QUEUE_NAME")
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> If its okay, could you please share code from your
>>>>>> application.java and properties.xml here?
>>>>>>
>>>>>> Thanks,
>>>>>> Vikram
>>>>>>
>>>>>>
>>>>>> On Thu, Jun 8, 2017 at 12:32 AM, <a...@x5h.eu
>>>>>> <mailto:a...@x5h.eu>> wrote:
>>>>>>
>>>>>> Thanks very much for the help. The only problem left is
>>>>>> that I don't quite understand dag.addstream().
>>>>>>
>>>>>> I tried this
>>>>>>
>>>>>> RabbitMQInputOperator consumer = dag.addOperator("Consumer",
>>>>>> RabbitMQInputOperator.class);
>>>>>> dag.addStream("data", rabbitInput.output, out.input);
>>>>>>
>>>>>> but obviously this doesn't work. What I don't get is the
>>>>>> difference between the ActiveMQ example and the RabbitMQ
>>>>>> example. I looked over the test examples for RabbitMQ but
>>>>>> don't seem to understand the logic behind it.
>>>>>>
>>>>>> Is this the correct wax to specify properties:
>>>>>> <property>
>>>>>> <name>dt.operator.rabbitMQIn.prop.tuple_blast</name>
>>>>>> <value>500</value>
>>>>>> </property>
>>>>>>
>>>>>> Cheers
>>>>>> Manfred.
>>>>>>
>>>>>>
>>>>>> Am 07.06.2017 um 12:03 schrieb Vikram Patil:
>>>>>>> Yes, you would need Application.java which will be way to
>>>>>>> define a DAG
>>>>>>> for Apex Application.
>>>>>>>
>>>>>>> Please have look at the code from following example to find out
>>>>>>> how to
>>>>>>> write JMS ActiveMQ based example:
>>>>>>>
>>>>>>>
>>>>>>> https://github.com/DataTorrent/examples/tree/master/tutorials/jmsActiveMQ/src/main/java/com/example/jmsActiveMQ
>>>>>>>
>>>>>>> <https://github.com/DataTorrent/examples/tree/master/tutorials/jmsActiveMQ/src/main/java/com/example/jmsActiveMQ>
>>>>>>>
>>>>>>> This is how you can instantiate RabbitMQINputOperator and to a
>>>>>>> dag.
>>>>>>> RabbitMQInputOperator consumer = dag.addOperator("Consumer",
>>>>>>> RabbitMQInputOperator.class);
>>>>>>>
>>>>>>>
>>>>>>> https://stackoverflow.com/questions/42207495/how-to-use-apache-apex-malhar-rabbitmq-operator-in-dag
>>>>>>>
>>>>>>> <https://stackoverflow.com/questions/42207495/how-to-use-apache-apex-malhar-rabbitmq-operator-in-dag>
>>>>>>>
>>>>>>> Following properties need to be specified in properties.xml
>>>>>>>
>>>>>>> * Properties:<br>
>>>>>>> * <b>tuple_blast</b>: Number of tuples emitted in each burst<br>
>>>>>>> * <b>bufferSize</b>: Size of holding buffer<br>
>>>>>>> * <b>host</b>:the address for the consumer to connect to
>>>>>>> rabbitMQ producer<br>
>>>>>>> * <b>exchange</b>:the exchange for the consumer to connect to
>>>>>>> rabbitMQ
>>>>>>> producer<br>
>>>>>>> * <b>exchangeType</b>:the exchangeType for the consumer to
>>>>>>> connect to
>>>>>>> rabbitMQ producer<br>
>>>>>>> * <b>routingKey</b>:the routingKey for the consumer to connect
>>>>>>> to
>>>>>>> rabbitMQ producer<br>
>>>>>>> * <b>queueName</b>:the queueName for the consumer to connect to
>>>>>>> rabbitMQ producer<br>
>>>>>>> * <br>
>>>>>>>
>>>>>>> Reference:
>>>>>>> https://github.com/apache/apex-malhar/blob/master/contrib/src/main/java/com/datatorrent/contrib/rabbitmq/AbstractRabbitMQInputOperator.java
>>>>>>>
>>>>>>> <https://github.com/apache/apex-malhar/blob/master/contrib/src/main/java/com/datatorrent/contrib/rabbitmq/AbstractRabbitMQInputOperator.java>
>>>>>>>
>>>>>>> Thanks,
>>>>>>> Vikram
>>>>>>>
>>>>>>> On Wed, Jun 7, 2017 at 3:19 PM, <a...@x5h.eu>
>>>>>>> <mailto:a...@x5h.eu> wrote:
>>>>>>>> Hello,
>>>>>>>>
>>>>>>>> I compiled the whole thing but now I don't know exactly how to
>>>>>>>> get it
>>>>>>>> running in Apex. Do I need an application.java like in the
>>>>>>>> tutorial? I do
>>>>>>>> have a simple RabbitMQ queue up and running on the server. How
>>>>>>>> do I consume
>>>>>>>> the messages with Apex and write them to hdfs?
>>>>>>>>
>>>>>>>> Cheers,
>>>>>>>>
>>>>>>>> Manfred
>>>>>>>>
>>>>>>>> Following steps were necessary to get the RabbitMq test to
>>>>>>>> compile
>>>>>>>>
>>>>>>>> @TimeoutException
>>>>>>>> import java.util.concurrent.TimeoutException;
>>>>>>>> public void setup() throws IOException,TimeoutException
>>>>>>>> public void teardown() throws IOException,TimeoutException
>>>>>>>> protected void runTest(final int testNum) throws IOException
>>>>>>>>
>>>>>>>> @Build jars
>>>>>>>> cd apex-malhar/contrib/
>>>>>>>> mvn clean package -DskipTests
>>>>>>>>
>>>>>>>> cd apex-malhar/library/
>>>>>>>> mvn clean package -DskipTests
>>>>>>>> copy packages to project directory
>>>>>>>>
>>>>>>>> @Link them to the project
>>>>>>>> Add following lines to the pom.xml
>>>>>>>> <dependency>
>>>>>>>> <groupId>contrib</groupId>
>>>>>>>> <artifactId>com.datatorrent.co
>>>>>>>> <http://com.datatorrent.co>ntrib.helper</artifactId>
>>>>>>>> <version>1.0</version>
>>>>>>>> <scope>system</scope>
>>>>>>>>
>>>>>>>>
>>>>>>>> <systemPath>${project.basedir}/src/main/resources/malhar-contrib-3.8.0-SNAPSHOT-tests.jar</systemPath>
>>>>>>>> </dependency>
>>>>>>>> <dependency>
>>>>>>>> <groupId>lib</groupId>
>>>>>>>> <artifactId>com.datatorrent.li
>>>>>>>> <http://com.datatorrent.li>b.helper</artifactId>
>>>>>>>> <version>1.0</version>
>>>>>>>> <scope>system</scope>
>>>>>>>>
>>>>>>>>
>>>>>>>> <systemPath>${project.basedir}/src/main/resources/malhar-library-3.8.0-SNAPSHOT-tests.jar</systemPath>
>>>>>>>> </dependency>
>>>>>>>> <dependency>
>>>>>>>> <groupId>contrib</groupId>
>>>>>>>> <artifactId>com.datatorrent.co
>>>>>>>> <http://com.datatorrent.co>ntrib.rabbitmq</artifactId>
>>>>>>>> <version>1.0</version>
>>>>>>>> <scope>system</scope>
>>>>>>>>
>>>>>>>>
>>>>>>>> <systemPath>${project.basedir}/src/main/resources/malhar-contrib-3.8.0-SNAPSHOT.jar</systemPath>
>>>>>>>> </dependency>
>>>>>>>> <dependency>
>>>>>>>> <groupId>Attribute</groupId>
>>>>>>>>
>>>>>>>> <artifactId>com.datatorrent.api.Attribute.AttributeMap</artifactId>
>>>>>>>> <version>1.0</version>
>>>>>>>> <scope>system</scope>
>>>>>>>>
>>>>>>>>
>>>>>>>> <systemPath>${project.basedir}/src/main/resources/apex-api-3.7.0-SNAPSHOT.jar</systemPath>
>>>>>>>> </dependency>
>>>>>>>>
>>>>>>>>
>>>>>>>> Am 31.05.2017 um 18:57 schrieb Sanjay Pujare:
>>>>>>>>
>>>>>>>> Both com.datatorrent.contrib.helper and
>>>>>>>> com.datatorrent.lib.helper are
>>>>>>>> under the test directory under malhar-contrib and
>>>>>>>> malhar-library
>>>>>>>> respectively. You may need to build these jars yourself with
>>>>>>>> test scope to
>>>>>>>> include these packages.
>>>>>>>>
>>>>>>>> On Wed, May 31, 2017 at 9:39 AM, <a...@x5h.eu>
>>>>>>>> <mailto:a...@x5h.eu> wrote:
>>>>>>>>> Hello, (mea culpa for messing up the headline the first time)
>>>>>>>>>
>>>>>>>>> I'm currently trying to get the apex-malhar rabbitmq running.
>>>>>>>>> But I'm at a
>>>>>>>>> complete loss, while the examples are running fine I don't
>>>>>>>>> even get the
>>>>>>>>> RabbitMQInputOperatorTest.java to run.
>>>>>>>>>
>>>>>>>>> First it couldn't find the rabbitmq-client which was
>>>>>>>>> solveable by adding
>>>>>>>>> the dependency:
>>>>>>>>>
>>>>>>>>> <dependency>
>>>>>>>>> <groupId>com.rabbitmq</groupId>
>>>>>>>>> <artifactId>amqp-client</artifactId>
>>>>>>>>> <version>4.1.0</version>
>>>>>>>>> </dependency>
>>>>>>>>>
>>>>>>>>> But now it doesn't find the packages
>>>>>>>>> com.datatorrent.contrib.helper and
>>>>>>>>> com.datatorrent.lib.helper and can't find several symbols.
>>>>>>>>>
>>>>>>>>> Needless to say that I'm a beginner regarding Apex so does
>>>>>>>>> anyone know
>>>>>>>>> what exactly I'm doing wrong here?
>>>>>>>>>
>>>>>>>>> Cheers
>>>>>>>>>
>>>>>>>>> Manfred.
>>>>>>>>>
>>>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>>
>
