Commit Graph

4 Commits

Author SHA1 Message Date
Alexey Milovidov
9b92c0fecd BackgroundSchedulePool: miscellaneous [#CLICKHOUSE-2]. 2017-11-19 03:22:13 +03:00
Alexey Milovidov
076e0ae014 More clear [#CLICKHOUSE-2]. 2017-11-18 00:20:28 +03:00
Silviu Caragea
64619c614f Basic idea is :
- We add BackgroundSchedulePool which can execute a function at a specific point in time. Basically all tasks are added in a queue and precessed by worker threads.
- The most important difference between this and BackgroundProcessingPool is that we have the guarantee that the same function is not executed from many workers in the same time
- Each of the following classes instead starting a thread will register a task in BackgroundSchedulePool and when they need to run will call schedule or scheduleAfter(duration) functions

This commit is moving all threads created by ReplicatedMergeTree to BackgroundSchedulePool tasks

NOTE: I did a minimum number of changes to be much simple to review the code
2017-11-17 10:58:35 +02:00
Alexey Milovidov
05accbdcbe Removed cyclic dependency [#DEVTOOLS-3381]. 2017-06-19 23:06:35 +03:00