Raul Ochoa
7563868514
Re-insert into the tree if there was a user in done state that gets a new task
2016-10-21 11:42:27 +02:00
Raul Ochoa
66a1c33f96
Simplify listener subscription logic
...
Always remove pending listeners on acquire call.
Always register add and release listeners on acquire.
2016-10-20 23:47:39 +02:00
Raul Ochoa
58deb49972
Remove runAt property as it is not used
2016-10-20 23:45:30 +02:00
Raul Ochoa
e4d54e9ab7
Fix condition to pick next candidate
2016-10-20 20:16:57 +02:00
Raul Ochoa
aa69bcf34c
Increase to 4 the default value for fixed capacity
2016-10-20 20:16:34 +02:00
Raul Ochoa
4e3bff9a70
Simplify scheduler to only consider task creation and number of queries
2016-10-20 12:21:41 +02:00
Raul Ochoa
5185c1e225
Cache valid responses for 500 ms
2016-10-20 12:06:51 +02:00
Raul Ochoa
d3f3d5ca36
Call parent with params
2016-10-20 12:06:32 +02:00
Raul Ochoa
75f1ddb049
Timeout for http capacity requests
2016-10-20 12:06:17 +02:00
Raul Ochoa
19def2f31e
Default to 2 jobs in fixed capacity.
2016-10-20 11:12:27 +02:00
Raul Ochoa
66cc137d04
Split http capacity between simple and load
...
- Simple will use 'available_cores' from response.
- Load will use 'cores' and 'relative_load'.
2016-10-20 11:12:08 +02:00
Raul Ochoa
0af5cf703a
Allow to configure capacity strategy
...
- HTTP strategy: mechanism to compute load from db host.
- Fixed strategy: hardcoded number of queries to run at the same time, via configuration.
2016-10-19 18:42:53 +02:00
Raul Ochoa
9596ac4730
Scheduler handles new tasks when there is free slots
2016-10-19 16:59:27 +02:00
Raul Ochoa
b164ec8c86
Better debugging
2016-10-19 16:58:00 +02:00
Raul Ochoa
1ee0878631
Scheduler uses a red–black tree to decide on next job candidate
2016-10-19 16:55:49 +02:00
Raul Ochoa
71d32e003b
Better debug
2016-10-19 11:46:02 +02:00
Raul Ochoa
4daa39bd2c
Start scheduler from host-scheduler
2016-10-19 11:45:48 +02:00
Raul Ochoa
e26bed2e66
Move status close to entity
2016-10-19 10:45:37 +02:00
Raul Ochoa
ca3d71ea48
Tasks with their own entity
...
- Use a list of tasks and keep an index per user.
- Removes WAITING status.
TODO: improve candidate selection.
2016-10-19 10:43:24 +02:00
Raul Ochoa
6c232a1fd0
Discard numeric status
2016-10-19 10:40:03 +02:00
Raul Ochoa
51ac1a3ab7
Remove TODO as it is already done
2016-10-19 10:38:39 +02:00
Raul Ochoa
ac65c1c39a
Rename
2016-10-19 10:36:13 +02:00
Raul Ochoa
3a57331a54
Delegate job scheduling
...
There is a host scheduler managing the host locking.
When it can acquire a lock over the host it will delegate
all the tasks related to that host to the same scheduler.
This scheduler will take care of how many jobs it will submit,
and in which order. It's also responsible for guaranteeing the
execution order per user.
Capacity planner dictates how many jobs can be run at the
same time in a given host. There are two simple strategies:
1. Infinity: it will attempt to run as many jobs as different users.
2. One: it will run just one job at the same time.
Missing things:
- Handle lock renewal failures.
- Fair scheduling for pending/waiting users.
- Capacity based on real resources.
2016-10-18 20:43:15 +02:00
