* fix: do not migrate during connection close
Fixes#2569
Before the change we had a corner case where Dragonfly would call
OnPreMigrateThread but would not call CancelOnErrorCb because OnBreakCb has already been called
(it resets break_cb_engaged_)
On the other hand in OnPostMigrateThread we called RegisterOnErrorCb if breaker_cb_ which resulted in double registration.
This change simplifies the logic by removing break_cb_engaged_ flag since CancelOnErrorCb is safe to call if nothing is registered.
Moreover, we now skip Migrate flow if a socket is being closed.
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Signed-off-by: Roman Gershman <roman@dragonflydb.io>
1. How many transactions we processed by type
2. How many transactions we processed by width (number of unique shards).
Signed-off-by: Roman Gershman <roman@dragonflydb.io>
Enables execution of global lua scripts inside multi/exec transactions if the defualt script config enables global execution for scripts. This change is only a fix and does not provide any safeguards against other execution scenarios (namely enabling globality with script flags). In the future, the proper execution mode should be determined more carefully by inspecting the scripts to be executed
Signed-off-by: Vladislav Oleshko <vlad@dragonflydb.io>
Co-authored-by: Kostas Kyrimis <kostaskyrim@gmail.com>
Store script parameters for each script that allow configuring it's transactions multi mode. They can be configured either for a specific scripts with `SCRIPT CONIFG <sha> [params...]` or changed globally as defaults with `default_lua_config`.
The current supported options are `allow-undeclared-keys` and `disable-atomicity`. Based on those flags, we determine the correct multi mode. `disable-atomicity` allow running in non-atomic mode, whereas being atomic and enabling `allow-undeclared-keys` requires the global mode.
