GitHub user dguy opened a pull request:
https://github.com/apache/kafka/pull/1918
[WIP] allow Processors to write to State Stores during Processor.init()
If a Processor writes to a State Store in the init and 0 records are
processed before `commit` is called an IllegalStateException is thrown. This is
because the `RecordContext` has not been set on `ProcessorContext` and
`RecordCollector` calls `context.timestamp()` when it is flushing the records
to the changelog.
This sets a dummy `RecordContext` with the timestamp set to
`System.currentTimeMillis` prior to Processor init.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/dguy/kafka processor-init
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/kafka/pull/1918.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1918
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commit 9e5c583a9bdbac66644ce9dd050109e0d9d2f21d
Author: Damian Guy <damian....@gmail.com>
Date: 2016-09-27T14:09:49Z
allow Processors to write to State Stores during Processor.init()
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