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From Fabian Wollert <fabian.woll...@zalando.de>
Subject Re: Flink Elasticsearch Connector: Lucene Error message
Date Sun, 16 Jul 2017 11:42:06 GMT
Hi Aljoscha,

we are running Flink in Stand alone mode, inside Docker in AWS. I will
check tomorrow the dependencies, although i'm wondering: I'm running Flink
1.3 averywhere and the appropiate ES connector which was only released with
1.3, so it's weird where this dependency mix up comes from ... let's see ...

Cheers
Fabian


--

*Fabian WollertZalando SE*

E-Mail: fabian.wollert@zalando.de
Location: ZMAP <http://zmap.zalando.net/?q=fabian.wollert@zalando.de>

2017-07-14 11:15 GMT+02:00 Aljoscha Krettek <aljoscha@apache.org>:

> This kind of error almost always hints at a dependency clash, i.e. there
> is some version of this code in the class path that clashed with the
> version that the Flink program uses. That’s why it works in local mode,
> where there are probably not many other dependencies and not in cluster
> mode.
>
> How are you running it on the cluster? Standalone, YARN?
>
> Best,
> Aljoscha
>
> On 13. Jul 2017, at 13:56, Fabian Wollert <fabian.wollert@zalando.de>
> wrote:
>
> Hi Timo, Hi Gordon,
>
> thx for the reply! I checked the connection from both clusters to each
> other, and i can telnet to the 9300 port of flink, so i think the
> connection is not an issue here.
>
> We are currently using in our live env a custom elasticsearch connector,
> which used some extra lib's deployed on the cluster. i found one lucene lib
> and deleted it (since all dependencies should be in the flink job jar), but
> that unfortunately did not help neither ...
>
> Cheers
> Fabian
>
>
> --
>
> *Fabian WollertData Engineering*
> *Technology*
>
> E-Mail: fabian.wollert@zalando.de
> Location: ZMAP <http://zmap.zalando.net/?q=fabian.wollert@zalando.de>
>
> 2017-07-13 13:46 GMT+02:00 Timo Walther <twalthr@apache.org>:
>
>> Hi Fabian,
>>
>> I loop in Gordon. Maybe he knows whats happening here.
>>
>> Regards,
>> Timo
>>
>>
>> Am 13.07.17 um 13:26 schrieb Fabian Wollert:
>>
>> Hi everyone,
>>
>> I'm trying to make use of the new Elasticsearch Connector
>> <https://ci.apache.org/projects/flink/flink-docs-release-1.3/dev/connectors/elasticsearch.html>.
>> I got a version running locally (with ssh tunnels to my Elasticsearch
>> cluster in AWS) in my IDE, I see the data in Elasticsearch written
>> perfectly, as I want it. As soon as I try to run this on our dev cluster
>> (Flink 1.3.0, running in the same VPC like ) though, i get the following
>> error message (in the sink):
>>
>> java.lang.NoSuchFieldError: LUCENE_5_5_0
>> at org.elasticsearch.Version.<clinit>(Version.java:295)
>> at org.elasticsearch.client.transport.TransportClient$Builder.
>> build(TransportClient.java:129)
>> at org.apache.flink.streaming.connectors.elasticsearch2.Elastic
>> search2ApiCallBridge.createClient(Elasticsearch2ApiCallBridge.java:65)
>> at org.apache.flink.streaming.connectors.elasticsearch.Elastics
>> earchSinkBase.open(ElasticsearchSinkBase.java:272)
>> at org.apache.flink.api.common.functions.util.FunctionUtils.ope
>> nFunction(FunctionUtils.java:36)
>> at org.apache.flink.streaming.api.operators.AbstractUdfStreamOp
>> erator.open(AbstractUdfStreamOperator.java:111)
>> at org.apache.flink.streaming.runtime.tasks.StreamTask.openAllO
>> perators(StreamTask.java:375)
>> at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(
>> StreamTask.java:252)
>> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:702)
>> at java.lang.Thread.run(Thread.java:748)
>>
>> I first thought that this has something to do with mismatched versions,
>> but it happens to me with Elasticsearch 2.2.2 (bundled with Lucene 5.4.1)
>> and Elasticsearch 2.3 (bundled with Lucene 5.5.0).
>>
>> Can someone point to what exact version conflict is happening here (or
>> where to investigate further)? Currently my set up looks like everything is
>> actually running with Lucene 5.5.0, so I'm wondering where that error
>> message is exactly coming from. And also why it is running locally, but not
>> in the cluster. I'm still investigating if this is a general connection
>> issue from the Flink cluster to the ES cluster, but that would be
>> surprising, and also that error message would be then misleading ....
>>
>> Cheers
>> Fabian
>>
>> --
>> *Fabian Wollert*
>> *Senior Data Engineer*
>>
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