Wei Zhou 78f73c1bc6

server: Fix update capacity for hosts take long time if there are many service offerings (#4623) ...

Steps to reproduce the issue:

(1)Create 10000 service offerings (by db changes below or cloudmonkey).

```
DROP PROCEDURE IF EXISTS cloud.insert_service_offering;

DELIMITER $$
CREATE PROCEDURE cloud.insert_service_offering()
BEGIN
  DECLARE count INT DEFAULT 10000;
  SET @offeringid = (select max(id)+1 from disk_offering);

  WHILE count > 0 DO
    INSERT INTO disk_offering (id,name,uuid,display_text,disk_size,type,created) values (@offeringid,'test-offering-wei',uuid(), 'test-offering-wei',0,'Service',now());
    INSERT INTO service_offering (id,cpu,speed,ram_size) values (@offeringid, 1, 500,256);
    SET @offeringid = @offeringid + 1;
    SET count = count - 1;
  END WHILE;
END $$
DELIMITER ;

CALL cloud.insert_service_offering();

mysql> CALL cloud.insert_service_offering();
Query OK, 0 rows affected (2 min 30.85 sec)
```

(2) Check the total time of periodical capacity check in cloudstack.

Without this patch, it spend 2.5 seconds (2 hosts)
```
2021-01-15 16:10:12,793 DEBUG [c.c.a.AlertManagerImpl] (CapacityChecker:ctx-5d5f3b3b) (logid:f5eb68ba) Running Capacity Checker ...
2021-01-15 16:10:15,287 DEBUG [c.c.a.AlertManagerImpl] (CapacityChecker:ctx-5d5f3b3b) (logid:f5eb68ba) Done running Capacity Checker ...
```

With this patch ,it spend 1.3 seconds (2 hosts)
```
2021-01-15 16:12:43,604 DEBUG [c.c.a.AlertManagerImpl] (CapacityChecker:ctx-a2a7f3f1) (logid:f7e0a4c5) Running Capacity Checker ...
2021-01-15 16:12:44,927 DEBUG [c.c.a.AlertManagerImpl] (CapacityChecker:ctx-a2a7f3f1) (logid:f7e0a4c5) Done running Capacity Checker ...
```

If there are 100 hosts, the total time will be reduced from 100+ seconds to around 10 seconds.

2021-02-04 14:43:57 +05:30

..

src/main

server: Fix update capacity for hosts take long time if there are many service offerings (#4623)

2021-02-04 14:43:57 +05:30

pom.xml

Updating pom.xml version numbers for release 4.14.1.0-SNAPSHOT

2020-05-23 09:59:32 +01:00