merlimat commented on issue #12812:
URL: https://github.com/apache/pulsar/issues/12812#issuecomment-972046724
Few additional notes:
* > zk server version: 3.4.6
Newer ZK versions have better performance (eg: better txn pipelining in
leader) and ways to configure group commit on the transaction log to improve
throughput.
* We should do a test with a 3/5 nodes ZK cluster, not just a single server
* It would be good to simulate a mix write/read scenario, perhaps adding a
YCSB driver (https://github.com/brianfrankcooper/YCSB) based on metadata store
API.
Finally, we should consider what happens when batching reads, of which we
don't know upfront the collective size. If we are exceeding the ZK max frame
size, we should be able to automatically switch back to non-batched read.
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