Unavailable partitions after upgrade to kafka 1.0.0

2018-04-22 Thread Mika Linnanoja
Hello, Last week I upgraded one relatively large kafka (EC2, 10 brokers, ~30 TB data, 100-300 Mbps in/out per instance) 0.10.0.1 cluster to 1.0, and saw some issues. Out of ~100 topics with 2..20 partitions each, 9 partitions in 8 topics become "unavailable" across 3 brokers. The leader was shown

Keeping track of ingest time of messages in pipeline (cluster 1-> mm -> cluster 2 -> ..)

2018-04-22 Thread Uddhav Arote
Hi, The V1 message format is 1. v1 (supported since 0.10.0) 2. Message => Crc MagicByte Attributes Key Value 3. Crc => int32 4. MagicByte => int8 5. Attributes => int8 6. Timestamp => int64 7. Key => bytes 8. Value => bytes Would it be a good suggestion to h

Re: Using Kafka CLI without specifying the URLs every single time?

2018-04-22 Thread Stephen Powis
We also have created simple wrapper scripts for common operations. On Sat, Apr 21, 2018 at 2:20 AM, Peter Bukowinski wrote: > One solution is to build wrapper scripts around the standard kafka > scripts. You’d put your relevant cluster parameters (brokers, zookeepers) > in a single config file (

Kafka rebalancing behavior on broker failures

2018-04-22 Thread Raghu Arur
I have a few questions on behavior of kafka w.r.t to broker life-cycle changes. 1. When a new broker is added to the cluster, do we need to manually invoke rebalancing or based on the load, kafka automatically invokes rebalancing ? 2. When an active broker goes down, does Kafka moves the partitio