Re: Help with Flink experimental Table API

2015-06-10 Thread Shiti Saxena
Hi Aljoscha, Could you please point me to the JIRA tickets? If you could provide some guidance on how to resolve these, I will work on them and raise a pull-request. Thanks, Shiti On Thu, Jun 11, 2015 at 11:31 AM, Aljoscha Krettek wrote: > Hi, > yes, I think the problem is that the RowSerializ

Re: Best wishes for Kostas Tzoumas and Robert Metzger

2015-06-10 Thread Hawin Jiang
Hi Robert Congrats for your presentation. I have downloaded your slides. Hopefully Flink can move forward quickly. Best regards Hawin On Wed, Jun 10, 2015 at 10:14 PM, Robert Metzger wrote: > Hi Hawin, > > here are the slides: > http://www.slideshare.net/robertmetzger1/apache-flink-deepdive-

Re: Help with Flink experimental Table API

2015-06-10 Thread Aljoscha Krettek
Hi, yes, I think the problem is that the RowSerializer does not support null-values. I think we can add support for this, I will open a Jira issue. Another problem I then see is that the aggregations can not properly deal with null-values. This would need separate support. Regards, Aljoscha On T

Re: Best wishes for Kostas Tzoumas and Robert Metzger

2015-06-10 Thread Robert Metzger
Hi Hawin, here are the slides: http://www.slideshare.net/robertmetzger1/apache-flink-deepdive-hadoop-summit-2015-in-san-jose-ca Thank you for the wishes. The talk was very well received. On Wed, Jun 10, 2015 at 10:41 AM, Hawin Jiang wrote: > Hi Michels > > I don't think you can watch them onli

Help with Flink experimental Table API

2015-06-10 Thread Shiti Saxena
Hi, In our project, we are using the Flink Table API and are facing the following issues, We load data from a CSV file and create a DataSet[Row]. The CSV file can also have invalid entries in some of the fields which we replace with null when building the DataSet[Row]. This DataSet[Row] is later

Re: Best wishes for Kostas Tzoumas and Robert Metzger

2015-06-10 Thread Hawin Jiang
Hi Michels I don't think you can watch them online now. Can someone share their presentations or feedback to us? Thanks Best regards Hawin On Mon, Jun 8, 2015 at 2:34 AM, Maximilian Michels wrote: > Thank you for your kind wishes :) Good luck from me as well! > > I was just wondering, is i

Re: Best way to write data to HDFS by Flink

2015-06-10 Thread Hawin Jiang
Thanks Marton I will use this code to implement my testing. Best regards Hawin On Wed, Jun 10, 2015 at 1:30 AM, Márton Balassi wrote: > Dear Hawin, > > You can pass a hdfs path to DataStream's and DataSet's writeAsText and > writeAsCsv methods. > I assume that you are running a Streaming topo

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Re: Flink-ML as Dependency

2015-06-10 Thread Till Rohrmann
Hi Max, I think the reason is that the flink-ml pom contains as a dependency an artifact with artifactId breeze_${scala.binary.version}. The variable scala.binary.version is defined in the parent pom and not substituted when flink-ml is installed. Therefore gradle tries to find a dependency with t

Re: Flink 0.9 built with Scala 2.11

2015-06-10 Thread Kostas Tzoumas
Please do ping this list if you encounter any problems with Flink during your project (you have done so already :-), but also if you find that the Flink API needs additions to map Pig well to Flink On Wed, Jun 10, 2015 at 3:47 PM, Philipp Goetze < philipp.goe...@tu-ilmenau.de> wrote: > Done. Can

Re: Load balancing

2015-06-10 Thread Gianmarco De Francisci Morales
We have been working on an adaptive load balancing strategy that would address exactly the issue you point out. FLINK-1725 is the starting point for the integration. Cheers, -- Gianmarco On 9 June 2015 at 20:31, Fabian Hueske wrote: > Hi Sebastian, > > I agree, shuffling only specific elements

Re: Flink 0.9 built with Scala 2.11

2015-06-10 Thread Philipp Goetze
Done. Can be found here: https://issues.apache.org/jira/browse/FLINK-2200 Best Regards, Philipp On 10.06.2015 15:29, Chiwan Park wrote: But I think uploading Flink API with scala 2.11 to maven repository is nice idea. Could you create a JIRA issue? Regards, Chiwan Park On Jun 10, 2015, at

Flink-ML as Dependency

2015-06-10 Thread Maximilian Alber
Hi Flinksters, I would like to test FlinkML. Unfortunately, I get an error when including it to my project. It might be my error as I'm not experienced with Gradle, but with Google I got any wiser. My build.gradle looks as follows: apply plugin: 'java' apply plugin: 'scala' //sourceCompatibilit

Re: Flink 0.9 built with Scala 2.11

2015-06-10 Thread Chiwan Park
But I think uploading Flink API with scala 2.11 to maven repository is nice idea. Could you create a JIRA issue? Regards, Chiwan Park > On Jun 10, 2015, at 10:23 PM, Chiwan Park wrote: > > No. Currently, there are no Flink binaries with scala 2.11 which are > downloadable. > > Regards, > Chi

Re: Flink 0.9 built with Scala 2.11

2015-06-10 Thread Chiwan Park
No. Currently, there are no Flink binaries with scala 2.11 which are downloadable. Regards, Chiwan Park > On Jun 10, 2015, at 10:18 PM, Philipp Goetze > wrote: > > Thank you Chiwan! > > I did not know the master has a 2.11 profile. > > But there is no pre-built Flink with 2.11, which I coul

Re: Flink 0.9 built with Scala 2.11

2015-06-10 Thread Till Rohrmann
No there are no Scala 2.11 Flink binaries which you can download. You have to build it yourself. Cheers, Till On Wed, Jun 10, 2015 at 3:19 PM Philipp Goetze wrote: > Thank you Chiwan! > > I did not know the master has a 2.11 profile. > > But there is no pre-built Flink with 2.11, which I could

Re: Flink 0.9 built with Scala 2.11

2015-06-10 Thread Philipp Goetze
Thank you Chiwan! I did not know the master has a 2.11 profile. But there is no pre-built Flink with 2.11, which I could refer to in sbt or maven, is it? Best Regards, Philipp On 10.06.2015 15:03, Chiwan Park wrote: Hi. You can build Flink with Scala 2.11 with scala-2.11 profile in master

Re: Flink 0.9 built with Scala 2.11

2015-06-10 Thread Chiwan Park
Hi. You can build Flink with Scala 2.11 with scala-2.11 profile in master branch. `mvn clean install -DskipTests -P \!scala-2.10,scala-2.11` command builds Flink with Scala 2.11. Regards, Chiwan Park > On Jun 10, 2015, at 9:56 PM, Flavio Pompermaier wrote: > > Nice! > > On 10 Jun 2015 14:49,

Re: Flink 0.9 built with Scala 2.11

2015-06-10 Thread Flavio Pompermaier
Nice! On 10 Jun 2015 14:49, "Philipp Goetze" wrote: > Hi community! > > We started a new project called Piglet (https://github.com/ksattler/piglet > ). > For that we use i.a. Flink as a backend. The project is based on Scala > 2.11. Thus we need a 2.11 build of Flink. > > Until now we used the 2.

Flink 0.9 built with Scala 2.11

2015-06-10 Thread Philipp Goetze
Hi community! We started a new project called Piglet (https://github.com/ksattler/piglet). For that we use i.a. Flink as a backend. The project is based on Scala 2.11. Thus we need a 2.11 build of Flink. Until now we used the 2.11 branch of the stratosphere project and built Flink ourselves.

Re: Best way to write data to HDFS by Flink

2015-06-10 Thread Márton Balassi
Dear Hawin, You can pass a hdfs path to DataStream's and DataSet's writeAsText and writeAsCsv methods. I assume that you are running a Streaming topology, because your source is Kafka, so it would look like the following: StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnv

Best way to write data to HDFS by Flink

2015-06-10 Thread Hawin Jiang
Hi All Can someone tell me what is the best way to write data to HDFS when Flink received data from Kafka? Big thanks for your example. Best regards Hawin

Re: Apache Flink transactions

2015-06-10 Thread Fabian Hueske
Comparing the performance of systems is not easy and the results depend on a lot of things as the configuration, data, and jobs. That being said, the numbers that Bill reported for WordCount make absolutely sense as Stephan pointed out in his response (Flink does not feature hash-based aggregation