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https://issues.apache.org/jira/browse/IGNITE-3303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15657165#comment-15657165
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Anton Vinogradov commented on IGNITE-3303:
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Saikat,
I've started review and still see that
{noformat}private static volatile boolean stopped = true;{noformat}
still static.
What give us no chance to use more that one {noformat}IgniteSource{noformat}
So I tried to change it to nonstatiŃ and tests failed.
I've started to check reasons and found that {noformat}IgniteSource{noformat}
instance at test and under flink (when flink run IgniteSource.run()) are
different.
Just set breakpoint inside {noformat}IgniteSource.start{noformat} and
{noformat}IgniteSource.run{noformat} and you'll se that they are different.
Af far as I understand flink makes object copy.
I've discovered web for some {noformat}RichParallelSourceFunction{noformat}
implementations and found they use another strategy to work with
{noformat}private volatile boolean isRunning = false;{noformat}
for example
http://www.programcreek.com/java-api-examples/index.php?source_dir=StreamKV-master/streamkv-java/src/main/java/streamkv/api/java/benchmark/AsyncKVLocalBenchmark.java
So, my question is what was the reason to use static {noformat}private static
volatile boolean stopped = true;{noformat} and is there any changes to make
tests with more than one {noformat}IgniteSource{noformat}?
Also, I see, that parallelism is always 1 at tests. Does it means that
implementation support only "1" case?
P.s. Saikat, I read some articles about Flink last hours, and I'm still not
flink guru :)
Possible I'm thinking in the wrong direction?
> Apache Flink Integration - Flink source to run a continuous query against one
> or multiple caches
> ------------------------------------------------------------------------------------------------
>
> Key: IGNITE-3303
> URL: https://issues.apache.org/jira/browse/IGNITE-3303
> Project: Ignite
> Issue Type: New Feature
> Components: streaming
> Reporter: Saikat Maitra
> Assignee: Saikat Maitra
> Attachments: Screen Shot 2016-10-07 at 12.44.47 AM.png,
> testFlinkIgniteSourceWithLargeBatch.log, win7.PNG
>
>
> Apache Flink integration
> +++ *Ignite as a bidirectional Connector* +++
> As a Flink source => run a continuous query against one or multiple
> caches [4].
> Related discussion :
> http://apache-ignite-developers.2346864.n4.nabble.com/Apache-Flink-lt-gt-Apache-Ignite-integration-td8163.html
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