Lari Hotari

> "when client idle" means few requests, maybe 1000 request per second, and it would cause batchFlushTasks scheduled well, it's not really idling if there's 1000 requests per second. I...

@liyinxin Thanks for the report. Can you also reproduce with latest release of pulsar-client-cpp which is 3.7.0 ?

> @hangc0276 I rebased after the merge of downgrade compat tests; upgrade to 9.2.1 doesn't downgrade nicely. I am not yet sure what can be configured to support compatibility. [In...

I created an issue #4479 about upgrading the default format_version to 5.

I created PR #4480 to upgrade default format_version to 5.

> @lhotari Have you tested the downgrade? We set the `format_version` to `2` by default, and it may not impacted by version `6` @hangc0276 The format_version setting was missing for...

> @lhotari It is set to `2` > > * https://github.com/apache/bookkeeper/blob/8890a61418e3961e0000108b3c2e8ea176691e5f/conf/entry_location_rocksdb.conf.default#L62-L63 > * https://github.com/apache/pulsar/blob/7636e8989f4d3fc24fce69a356d54e1c550945ed/conf/entry_location_rocksdb.conf#L61-L62 @hangc0276 Yes, you are right that format_version should already be set to 2. I was assuming...

> @hangc0276 I rebased after the merge of downgrade compat tests; upgrade to 9.2.1 doesn't downgrade nicely. I am not yet sure what can be configured to support compatibility. @dlg99...

> @lhotari We should hold on to the upgrade before verifying the compatibility issue. > https://github.com/apache/bookkeeper/pull/4559 set formatVersion to 5. Does it mean all the old BookKeeper versions are need...

Superseded by #4580