21,882
社区成员
发帖
与我相关
我的任务
分享
[root@localhost shm]# /usr/local/rrdtool/bin/rrdtool create test.rrd --step 10 DS:myds:GAUGE:100:0:U RRA:LAST:0.5:1:100000
[root@localhost shm]# /usr/local/rrdtool/bin/rrdtool info test.rrd
filename = "test.rrd"
rrd_version = "0003"
step = 10
last_update = 1365991934
header_size = 584
ds[myds].index = 0
ds[myds].type = "GAUGE"
ds[myds].minimal_heartbeat = 100
ds[myds].min = 0.0000000000e+00
ds[myds].max = NaN
ds[myds].last_ds = "U"
ds[myds].value = 0.0000000000e+00
ds[myds].unknown_sec = 4
rra[0].cf = "LAST"
rra[0].rows = 100000
rra[0].cur_row = 82401
rra[0].pdp_per_row = 1
rra[0].xff = 5.0000000000e-01
rra[0].cdp_prep[0].value = NaN
rra[0].cdp_prep[0].unknown_datapoints = 0
另外,有一种情况,关于历史数据会被如何处理,这个要测试下看看……不过我觉得按你的create应该也不会有合并平均的情况才对。
[root@localhost shm]# /usr/local/rrdtool/bin/rrdtool create test.rrd --step 10 DS:myds:GAUGE:100:0:U RRA:LAST:0.5:1:100000
[root@localhost shm]# /usr/local/rrdtool/bin/rrdtool updatev test.rrd -t myds N:1028
return_value = 0
[1365991710]RRA[LAST][1]DS[myds] = 1.0280000000e+03
[root@localhost shm]# /usr/local/rrdtool/bin/rrdtool fetch test.rrd LAST | grep -v nan
myds
1365991710: 1.0280000000e+03
[root@localhost shm]# /usr/local/rrdtool/bin/rrdtool -V
RRDtool 1.4.7 Copyright 1997-2012 by Tobias Oetiker <tobi@oetiker.ch>
Compiled Jul 5 2012 15:34:45
我这里测试……没出现这个问题诶……