X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=doc%2Frrdinfo.txt;h=7d1b9fc5c2ea341f095c14ffe22e9558c2bc7aa0;hb=23a63bef251017be5fd4f09db2be10575e3df59e;hp=71da96e5cb79d5a23c9a6f5802ce8dd39ef5d845;hpb=3a03e55068747637db4480d4f3a8ab8ef26c50b1;p=pkg-rrdtool.git diff --git a/doc/rrdinfo.txt b/doc/rrdinfo.txt index 71da96e..7d1b9fc 100644 --- a/doc/rrdinfo.txt +++ b/doc/rrdinfo.txt @@ -6,26 +6,39 @@ NNAAMMEE rrdinfo - extract header information from an RRD SSYYNNOOPPSSIISS - rrrrddttooooll iinnffoo _f_i_l_e_n_a_m_e_._r_r_d + rrrrddttooooll iinnffoo _f_i_l_e_n_a_m_e [----ddaaeemmoonn _a_d_d_r_e_s_s] DDEESSCCRRIIPPTTIIOONN - The iinnffoo function prints the header information from an RRD in a pars- - ing friendly format. + The iinnffoo function prints the header information from an RRD in a + parsing friendly format. - Check rrdcreate if you are uncertain about the meaning of the individ- - ual keys. + Check rrdcreate if you are uncertain about the meaning of the + individual keys. + + _f_i_l_e_n_a_m_e + The name of the RRRRDD you want to examine. + + ----ddaaeemmoonn _a_d_d_r_e_s_s + Address of the rrdcached daemon. If specified, a "flush" + command is sent to the server before reading the RRD files. + This allows rrrrddttooooll to return fresh data even if the daemon is + configured to cache values for a long time. For a list of + accepted formats, see the --ll option in the rrdcached manual. + + rrdtool info --daemon unix:/var/run/rrdcached.sock /var/lib/rrd/foo.rrd EEXXAAMMPPLLEE - This is the output generated by running iinnffoo on a simple RRD which con- - tains two data sources and one RRA. Note that the number after the + This is the output generated by running iinnffoo on a simple RRD which + contains two data sources and one RRA. Note that the number after the _l_a_s_t___u_p_d_a_t_e keyword is in seconds since 1970. The string NNaaNN stands for - _*_U_N_K_N_O_W_N_* data. In the example it means that this RRD has neither mini- - mum nor maximum values defined for either of its data sources. + _*_U_N_K_N_O_W_N_* data. In the example it means that this RRD has neither + minimum nor maximum values defined for either of its data sources. filename = "random.rrd" rrd_version = "0001" step = 300 last_update = 955892996 + header_size = 2872 ds[a].type = "GAUGE" ds[a].minimal_heartbeat = 600 ds[a].min = NaN @@ -47,12 +60,18 @@ EEXXAAMMPPLLEE rra[0].cdp_prep[1].value = nan rra[0].cdp_prep[1].unknown_datapoints = 0 - _f_i_l_e_n_a_m_e_._r_r_d - The name of the RRRRDD you want to examine. +EENNVVIIRROONNMMEENNTT VVAARRIIAABBLLEESS + The following environment variables may be used to change the behavior + of "rrdtool info": + + RRRRDDCCAACCHHEEDD__AADDDDRREESSSS + If this environment variable is set it will have the same effect as + specifying the "--daemon" option on the command line. If both are + present, the command line argument takes precedence. AAUUTTHHOORR Tobias Oetiker -1.3.0 2008-03-15 RRDINFO(1) +1.4.7 2009-04-20 RRDINFO(1)