Hi Ted and Gordon,
I found the root cause and a solution. Basically
https://ci.apache.org/projects/flink/flink-docs-release-1.3/setup/aws.html#flink-for-hadoop-27
is out of date. Adding httpcore-4.3.6.jar and httpclient-4.3.3.jar rather
than httpcore-4.2.5.jar and httpclient-4.2.5.jar to /lib fixed version
conflicts.
I've taken https://issues.apache.org/jira/browse/FLINK-6951 and will
submit doc update.
Thank you for your help on navigating through this problem!
Bowen
On Tue, Jun 20, 2017 at 1:51 AM, Ted Yu <yuzhih...@gmail.com> wrote:
> From aws-sdk-java/aws-java-sdk-core/src/main/java/com/amazonaws/http/conn/
> SdkConnectionKeepAliveStrategy.java
> :
>
> import org.apache.http.impl.client.DefaultConnectionKeepAliveStrategy;
>
> I checked out 4.2.x branch of httpcomponents-client
> There is no INSTANCE
> in httpclient/src/main/java/org/apache/http/impl/client/
> DefaultConnectionKeepAliveStrategy.java
>
> So the 4.2.x httpcomponents-client jar in the classpath got in the way
> of aws-java-sdk-core which was built with newer httpcomponents-client
>
> In master branch
> of httpcomponents-client,
> httpclient5/src/main/java/org/apache/hc/client5/http/impl/
> DefaultConnectionKeepAliveStrategy.java
> does contain INSTANCE.
>
> FYI
>
> On Mon, Jun 19, 2017 at 11:22 PM, Bowen Li <bowen...@offerupnow.com>
> wrote:
>
> > Hi Gordon,
> > I double checked that I'm not using any of httpclient/httpcore
> > or aws-java-sdk-xxx jars in my application.
> >
> > The only thing I did with aws-java-sdk is to put
> > aws-java-sdk-1.7.4.jar to /lib described in https://ci.apache.org/
> > projects/flink/flink-docs-release-1.3/setup/aws.html#
> flink-for-hadoop-27.
> > Here's the screenshot of my /lib dir.
> > [image: Inline image 1]
> >
> > Can the root cause be that shaded aws-java-sdk in flink is different
> > than shaded aws-java-sdk in flink-kinesis-connector?
> >
> > Thanks!
> >
> > On Mon, Jun 19, 2017 at 10:26 PM, Tzu-Li (Gordon) Tai <
> tzuli...@apache.org
> > > wrote:
> >
> >> Hi Bowen,
> >>
> >> Thanks for the info. I checked the 1.3.0 release jars, and they do not
> >> have unshaded httpcomponent dependencies, so that shouldn’t be the
> problem.
> >>
> >> Looking back into the stack trace you posted, the conflict seems to be a
> >> different problem.
> >> The conflict seems to be with clashes with the aws-java-sdk version, and
> >> not the httpcomponent dependency.
> >> The “INSTANCE” field actually does exist in the aws-java-sdk version
> that
> >> the Kinesis connector is using.
> >>
> >> Could it be that you have other conflicting aws-java-sdk versions in
> your
> >> jar?
> >>
> >> Cheers,
> >> Gordon
> >>
> >>
> >> On 20 June 2017 at 12:55:17 PM, Bowen Li (bowen...@offerupnow.com)
> wrote:
> >>
> >> Hi Gordon,
> >> Here's what I use:
> >>
> >> - Flink: I didn't build Flink myself. I download
> >> http://apache.mirrors.lucidnetworks.net/flink/flink-1.3.0/
> >> flink-1.3.0-bin-hadoop27-scala_2.11.tgz
> >> from https://flink.apache.org/downloads.html (Hadoop® 2.7, Scala 2.11)
> >> - flink-kinesis-connector: I
> >> build flink-connector-kinesis_2.11-1.3.0.jar myself, from source code
> >> downloaded at *#Source* section in
> >> https://flink.apache.org/downloads.html.
> >> - Mvn -v: Apache Maven 3.2.5
> >>
> >>
> >> In short, I didn't build Flink. Most likely that dependencies in
> >> either flink-dist or flink-kinesis-connector is not shaded properly?
> >>
> >> Thanks!
> >> Bowen
> >>
> >> On Mon, Jun 19, 2017 at 9:28 PM, Tzu-Li (Gordon) Tai <
> tzuli...@apache.org
> >> >
> >> wrote:
> >>
> >> > Hi,
> >> >
> >> > We’ve seen this issue before [1]. The usual reason is that the
> >> > httpcomponent dependencies weren’t properly shaded in the flink-dist
> >> jar.
> >> > Having them properly shaded should solve the issue.
> >> >
> >> > cc Bowen:
> >> > Are you building Flink yourself? If yes, what Maven version are you
> >> using?
> >> > If you’re using 3.3.x+, after the first build under flink/, make sure
> >> to go
> >> > to flink-dist/ and build a second time for the dependencies to be
> >> properly
> >> > shaded.
> >> > Alternatively, Maven 3.0.x+ is the recommended version, as 3.3.x has
> >> > dependency shading issues.
> >> >
> >> > If you’re not building Flink yourself, the cause could be that the
> Flink
> >> > 1.3.0 flink-dist jar wasn’t shaded properly, may need to double check.
> >> >
> >> > Best,
> >> > Gordon
> >> >
> >> > [1] https://issues.apache.org/jira/browse/FLINK-5013
> >> >
> >> > On 20 June 2017 at 12:14:27 PM, Ted Yu (yuzhih...@gmail.com) wrote:
> >> >
> >> > I logged FLINK-6951, referencing this thread.
> >> >
> >> > We can continue discussion there.
> >> >
> >> > Thanks
> >> >
> >> > On Mon, Jun 19, 2017 at 9:06 PM, Bowen Li <bowen...@offerupnow.com>
> >> wrote:
> >> >
> >> > > Thanks, Ted! woo, this is unexpected. https://ci.apache.
> >> > > org/projects/flink/flink-docs-release-1.3/setup/aws.html is out of
> >> date.
> >> > >
> >> > > I bet anyone using Kinesis with Flink will run into this issue. I
> can
> >> try
> >> > > to build Flink myself and resolve this problem. But talking about a
> >> > > feasible permanent solution for all flink-connector-kinesis users.
> >> Shall
> >> > we
> >> > > downgrade aws-java-sdk-kinesis version in flink-connector-kinesis,
> or
> >> > shall
> >> > > we upgrade httpcomponents version in Flink?
> >> > >
> >> > > Bowen
> >> > >
> >> > >
> >> > > On Mon, Jun 19, 2017 at 7:02 PM, Ted Yu <yuzhih...@gmail.com>
> wrote:
> >> > >
> >> > > > Here is the dependency in the flink-connector-kinesis module:
> >> > > >
> >> > > > [INFO] +- com.amazonaws:aws-java-sdk-kinesis:jar:1.10.71:compile
> >> > > > [INFO] | \- com.amazonaws:aws-java-sdk-core:jar:1.10.71:compile
> >> > > > [INFO] | +- org.apache.httpcomponents:
> httpclient:jar:4.3.6:compile
> >> > > > [INFO] | +- org.apache.httpcomponents:httpcore:jar:4.3.3:compile
> >> > > >
> >> > > > Checking dependency tree of flink, the highest version is 4.2.x
> >> > > >
> >> > > > You can try building flink with dependency on 4.3.y of httpclient
> /
> >> > > > httpcore
> >> > > >
> >> > > > FYI
> >> > > >
> >> > > >
> >> > > >
> >> > > > On Mon, Jun 19, 2017 at 4:52 PM, Bowen Li <
> bowen...@offerupnow.com>
> >> > > wrote:
> >> > > >
> >> > > > > Hi guys,
> >> > > > > I'm trying to enable Flink's checkpoint on our Flink app. I got
> >> the
> >> > > > > following Apache http jar compatibility error, and cannot figure
> >> out
> >> > > how
> >> > > > to
> >> > > > > resolve it.
> >> > > > >
> >> > > > > Here's the stacktrace:
> >> > > > >
> >> > > > > ```
> >> > > > >
> >> > > > > 2017-06-19 15:07:39,828 INFO org.apache.flink.runtime.
> >> > > taskmanager.Task
> >> > > > > - Source: Custom Source -> (Timestamps/Watermarks,
> >> > > Filter
> >> > > > > -> Map, Filter -> Map, Filter -> Map) (1/1)
> >> > > > > (37ab9429deda28e31fa0ed0ed1568654) switched from RUNNING to
> >> FAILED.
> >> > > > > java.lang.NoSuchFieldError: INSTANCE
> >> > > > > at
> >> > > > > org.apache.flink.kinesis.shaded.com.amazonaws.http.conn.
> >> > > > > SdkConnectionKeepAliveStrategy.getKeepAliveDuration(
> >> > > > > SdkConnectionKeepAliveStrategy.java:48)
> >> > > > > at
> >> > > > > org.apache.http.impl.client.DefaultRequestDirector.execute(
> >> > > > > DefaultRequestDirector.java:535)
> >> > > > > at
> >> > > > > org.apache.http.impl.client.AbstractHttpClient.execute(
> >> > > > > AbstractHttpClient.java:906)
> >> > > > > at
> >> > > > > org.apache.http.impl.client.AbstractHttpClient.execute(
> >> > > > > AbstractHttpClient.java:805)
> >> > > > > at
> >> > > > > org.apache.flink.kinesis.shaded.com.amazonaws.http.AmazonHtt
> >> pClient.
> >> > > > > executeOneRequest(AmazonHttpClient.java:837)
> >> > > > > at
> >> > > > > org.apache.flink.kinesis.shaded.com.amazonaws.http.AmazonHtt
> >> pClient.
> >> > > > > executeHelper(AmazonHttpClient.java:607)
> >> > > > > at
> >> > > > > org.apache.flink.kinesis.shaded.com.amazonaws.http.
> >> > > > > AmazonHttpClient.doExecute(AmazonHttpClient.java:376)
> >> > > > > at
> >> > > > > org.apache.flink.kinesis.shaded.com.amazonaws.http.AmazonHtt
> >> pClient.
> >> > > > > executeWithTimer(AmazonHttpClient.java:338)
> >> > > > > at
> >> > > > > org.apache.flink.kinesis.shaded.com.amazonaws.http.
> >> > > > > AmazonHttpClient.execute(AmazonHttpClient.java:287)
> >> > > > > at
> >> > > > > org.apache.flink.kinesis.shaded.com.amazonaws.services.
> >> > > > > kinesis.AmazonKinesisClient.doInvoke(AmazonKinesisClient.jav
> >> a:1940)
> >> > > > > at
> >> > > > > org.apache.flink.kinesis.shaded.com.amazonaws.services.
> >> > > > > kinesis.AmazonKinesisClient.invoke(AmazonKinesisClient.
> java:1910)
> >> > > > > at
> >> > > > > org.apache.flink.kinesis.shaded.com.amazonaws.services.
> >> > > > > kinesis.AmazonKinesisClient.describeStream(
> >> > > AmazonKinesisClient.java:656)
> >> > > > > at
> >> > > > > org.apache.flink.streaming.connectors.kinesis.proxy.
> >> > > > > KinesisProxy.describeStream(KinesisProxy.java:361)
> >> > > > > at
> >> > > > > org.apache.flink.streaming.connectors.kinesis.proxy.
> KinesisProxy.
> >> > > > > getShardsOfStream(KinesisProxy.java:323)
> >> > > > > at
> >> > > > > org.apache.flink.streaming.connectors.kinesis.proxy.
> >> > > > > KinesisProxy.getShardList(KinesisProxy.java:231)
> >> > > > > at
> >> > > > > org.apache.flink.streaming.connectors.kinesis.internals.
> >> > > > > KinesisDataFetcher.discoverNewShardsToSubscribe(
> >> > > > > KinesisDataFetcher.java:430)
> >> > > > > at
> >> > > > > org.apache.flink.streaming.connectors.kinesis.
> >> > > FlinkKinesisConsumer.run(
> >> > > > > FlinkKinesisConsumer.java:202)
> >> > > > > at
> >> > > > > org.apache.flink.streaming.api.operators.StreamSource.
> >> > > > > run(StreamSource.java:87)
> >> > > > > at
> >> > > > > org.apache.flink.streaming.api.operators.StreamSource.
> >> > > > > run(StreamSource.java:55)
> >> > > > > at
> >> > > > > org.apache.flink.streaming.runtime.tasks.SourceStreamTask.run(
> >> > > > > SourceStreamTask.java:95)
> >> > > > > at
> >> > > > > org.apache.flink.streaming.runtime.tasks.StreamTask.
> >> > > > > invoke(StreamTask.java:262)
> >> > > > > at org.apache.flink.runtime.taskmanager.Task.run(Task.java:702)
> >> > > > > at java.lang.Thread.run(Thread.java:745)
> >> > > > >
> >> > > > > ```
> >> > > > >
> >> > > > > Here's my Flink environment setup:
> >> > > > >
> >> > > > > - I'm using flink-connector-kinesis_2.11-1.3.0.jar that I built
> >> > > from
> >> > > > > 1.3.0 source code.
> >> > > > > - I followed
> >> > > > > https://ci.apache.org/projects/flink/flink-docs-
> >> > > > > release-1.3/setup/aws.html#flink-for-hadoop-27
> >> > > > > and added all necessary dependency jars
> >> > > > > - My application doesn't use Apache http/core.
> >> > > > >
> >> > > > >
> >> > > > > Has anyone experienced the similar incompatibility issue?
> >> > > > >
> >> > > > > Thanks!
> >> > > > > Bowen
> >> > > > >
> >> > > >
> >> > >
> >> >
> >>
> >
> >
>
