opentsdb

opentsdb.md

rest api
http://localhost:4242/api/query?start=1466564936&m=avg:20s-max:rate:cpu_usage_total{queue=gaia_queue,user=11,appName=rami_test,instance=3}
curl 'http://localhost:4242/api/query?start=1466564936&m=avg:20s-max:rate:cpu_usage_total\{queue=root.demo,user=null,appName=rami,instanceId=1\}'

put sys.cpu.user 1356998400 1 h=w1 c=0
put sys.cpu.user 1356998401 3 h=w1 c=1
put sys.cpu.user 1356998400 5 h=w2 c=0
put sys.cpu.user 1356998402 7 h=w2 c=1

###tsdb-uid

• sort(tagk1,tagk2...)
• key compress
• 正向/反向索引

rowkey	column family:id			column family:name
	metrics	tagk	tagv	metrics	tagk	tagv
00	1	2	4
000001				sys.cpu.user	c	0
000002					h	w1
000003						1
000004						w2
0			000001
1			000003
c		000001
h		000002
sys.cpu.user	000001
w1			000002
w2			000004

###tsdb

• timestamp%3600
• len(rowkey)=3(metrix)+4(timestamp)+(3(tagk)+3(tagv))*2(num)=19bytes
• key均匀散列
• row compress

rowkey						column family:t
metric	timestamp	tagk	tagv	tagk	tagv	+0	+1	+2	...	+3599
000001	50E22700	000001	000001	000002	000002	1
000001	50E22700	000001	000001	000002	000004	5
000001	50E22700	000001	000003	000002	000002		3
000001	50E22700	000001	000003	000002	000004			7