6 Commits

Author	SHA1	Message	Date
YaacovHazan	ea930a352c	Report child copy-on-write info continuously ... Add INFO field, rdb_active_cow_size, to report COW of a live fork child while it's active. - once in 1024 keys check the time, and if there's more than one second since the last report send a report to the parent via the pipe. - refactor the child_info_data struct, it's an implementation detail that shouldn't be in the server struct, and not used to communicate data between caller and callee - remove the magic value from that struct (not sure what it was good for), and instead add handling of short reads. - add another value to the structure, cow_type, to indicate if the report is for the new rdb_active_cow_size field, or it's the last report of a successful operation - add new Module API to report the active COW - add more asserts variants to test.tcl	2021-01-07 16:14:29 +02:00
sundb	6987176059	docs: Fix some typos in comments and log messge (#7975)	2020-10-28 08:51:35 +02:00
Oran Agra	2458e54814	RM_GetContextFlags provides indication that we're in a fork child (#7783)	2020-09-20 13:43:28 +03:00
Oran Agra	56258c6b7d	Module API for Forking ... * create module API for forking child processes. * refactor duplicate code around creating and tracking forks by AOF and RDB. * child processes listen to SIGUSR1 and dies exitFromChild in order to eliminate a valgrind warning of unhandled signal. * note that BGSAVE error reply has changed. valgrind error is: Process terminating with default action of signal 10 (SIGUSR1)	2019-07-17 16:40:24 +03:00
antirez	e9d861ec69	Clear child data when opening the pipes. ... This is important both to reset the magic to 0, so that it will not match if the structure is not explicitly set, and to initialize other things we may add like counters and such.	2016-09-19 14:11:17 +02:00
antirez	e565632e59	Child -> Parent pipe for COW info transferring.	2016-09-19 13:45:20 +02:00