Re: Sub Tasks being processed only after restart

2020-12-11 Thread Leah Thomas
Hey Nitay, In terms of rocksDB metrics, 2.5.1 should have a number of debug level metrics that could shed some light on the situation. Particularly I'd recommend looking at WRITE_STALL_DURATION_AVG / WRITE_STALL_DURATION_TOTAL, as well as some of the compaction metrics such as COMPACTION_TIME_MAX,

Re: Sub Tasks being processed only after restart

2020-12-09 Thread Nitay Kufert
Hey Leah, Thanks for the response. We are running Kafka 2.5.1 and if the topology will still be useful after the next few sentences, i will share it with you (its messy!). It happens on few partitions, and few internal topics - and it seems to be kind of random which topics and which partitions ex

Re: Sub Tasks being processed only after restart

2020-12-08 Thread Leah Thomas
Hi Nitay, What version of Kafka are you running? If you could also give the topology you're using that would be great. Do you have a sense of if the lag is happening on all partitions or just a few? Also if you're using rocksDB there are some rocksDB metrics in newer versions of Kafka that could b