judge把报警event写入redis，alarm从redis读取event，做相应处理，可能是发报警短信、邮件，可能是callback某个http地址。 生成的短信、邮件写入queue，sender模块专门负责来发送。
# set $GOPATH and $GOROOT
mkdir -p $GOPATH/src/github.com/open-falcon
cd $GOPATH/src/github.com/open-falcon
git clone https://github.com/open-falcon/alarm.git
cd alarm
go get ./...
./control build
./control start- uicToken: 留空即可
- http: 监听的http端口
- queue: 要发送的短信、邮件写入的队列，需要与sender配置一致
- redis: highQueues和lowQueues区别是是否做报警合并，默认配置是P0/P1不合并，收到之后直接发出；>=P2做报警合并
- api: 其他各个组件的地址
- use falcon_portal
CREATE TABLE event_cases (
id VARCHAR(50),
endpoint VARCHAR(100) NOT NULL,
metric VARCHAR(200) NOT NULL,
func VARCHAR(50),
cond VARCHAR(200) NOT NULL,
note VARCHAR(200),
max_step int(10) unsigned,
current_step int(10) unsigned,
priority INT(6) NOT NULL,
status VARCHAR(20) NOT NULL,
timestamp Timestamp NOT NULL,
update_at Timestamp,
process_note MEDIUMINT,
process_status VARCHAR(20),
tpl_creator VARCHAR(64),
expression_id int(10) unsigned,
strategy_id int(10) unsigned,
template_id int(10) unsigned,
PRIMARY KEY (id),
INDEX (endpoint, strategy_id, template_id)
);
CREATE TABLE events (
id MEDIUMINT NOT NULL AUTO_INCREMENT,
event_caseId VARCHAR(50),
step int(10) unsigned,
cond VARCHAR(200) NOT NULL,
status int(3) unsigned DEFAULT 0,
timestamp Timestamp,
PRIMARY KEY (id),
INDEX(event_caseId),
FOREIGN KEY (event_caseId) REFERENCES event_cases(id)
ON DELETE CASCADE
ON UPDATE CASCADE
);
CREATE TABLE event_note (
id MEDIUMINT NOT NULL AUTO_INCREMENT,
event_caseId VARCHAR(50),
note VARCHAR(300),
case_id VARCHAR(20),
status VARCHAR(15),
timestamp Timestamp,
user_id int(10) unsigned,
PRIMARY KEY (id),
INDEX (event_caseId),
FOREIGN KEY (event_caseId) REFERENCES event_cases(id)
ON DELETE CASCADE
ON UPDATE CASCADE,
FOREIGN KEY (user_id) REFERENCES uic.user(id)
ON DELETE CASCADE
ON UPDATE CASCADE
);
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