Rapid, repeated expanding followed by shrinking of ISR--too few partitions, or something else?

[hokie...@gmail.com]

Hi Everyone,

We're currently in a situation where the ISR for a bunch of our partitions are going through frequent ISR expansion/shrinking cycles. I understand from the docs that Kafka shrinks the ISR for a partition if the follower replicas get too far behind.

Question--is this a symptom of too few partitions, or is there another root cause we should investigate.

Any guidance is definitely appreciated.

Thanks

--John

[Gwen Shapira]

#1 cause is GC pauses causing loss of connectivity to Zookeeper. I'd check that first. 

--
You received this message because you are subscribed to the Google Groups "Confluent Platform" group.
To unsubscribe from this group and stop receiving emails from it, send an email to confluent-platf...@googlegroups.com.
To post to this group, send email to confluent...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/confluent-platform/5008de28-b4f2-4ee4-bd00-745c72a143ef%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[Gwen Shapira]

#2 cause is running on a version older than 0.9.0 :)