* Added a limit on how many errors can replica accumulate
* Decreased default error halving time to 60 seconds
* Made both configurable via settings
* Showing errors count and estimated recovery time for each replica in system.clusters
For cross-replication topology setups load_balancing=in_order works best
as nodes handle equal amount of load and usually they hit only 1/n of
data (n = number of replicas), which makes page cache usage more
efficient.
The problem is when one node of the shard goes down. If one replica goes
down, the next one in config will handle twice the usual load while
remaining ones will handle usual traffic.
Closes#4820.
* CLICKHOUSE-3771: compatible version transfer
* Fix
* Fixed compatibility
* fix
* Auto version update to [1.1.54401] [54398]
* fix auto revision up
* fix
* comments
* clean
* fix
* Send/recieve patch if we can
* fix
* Auto version update to [18.2.0] [54397]
* Client version in query_log
* Update TCPHandler.cpp
* Update Connection.cpp
* Update Defines.h
