What version to you use? Kafka Streams should be able to keep running while you restart you brokers. If not, it seems to be a bug in Kafka Streams itself.
-Matthias On 2/3/18 7:39 PM, dizzy0ny wrote: > Hi,We have a recurring problem that I wonder if there is a better way to > solve. Currently when we restart our backed Kafka services and then our > datastreams app, the app is unable to reach many of the Kafka topic state > stores. We currently retry, but more often than not, it requires a restart of > the app to clear up. > I think this is because perhaps a partition leader has not been elected when > the app starts. Two questions > 1. Is there a good way to know when a partition leader has been elected such > that our restart script can wait2. Is it possible to have the app > deterministically wait/retry until the stores are ready? As mentioned, we > have retry logic for up to 200 tries with a few seconds sleep in between, but > it seems in some cases we have restart the app as the retries get exceeded. > Thanks for any assistance >
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