1Smokeping_probes_FTPtransfer(3) SmokePing Smokeping_probes_FTPtransfer(3)
2
6 Smokeping::probes::FTPtransfer - intrusive bandwidth probe
7
9 This probe send and retrieve files to or from an ftp server. It will
10 plot the bandwidth it could use.
11
13 *** Probes ***
14 +FTPtransfer
16 destfile = path/to/destinationfile.xxx
18 forks = 5
19 min_interval = 1
20 mode = get # mandatory
21 offset = 50%
22 passwordfile = /some/place/secret
23 srcfile = src/path/mybig.pdf # mandatory
24 step = 300
25 timeout = 15 # mandatory
26 # The following variables can be overridden in each target section
28 localaddr = myhost-nat-if
29 passive = yes
30 password = test-password
31 pings = 5
32 port = 3255
33 timeout = 10
34 username = test-user
35 # [...]
37 *** Targets ***
39 probe = FTPtransfer # if this should be the default probe
41 # [...]
43 + mytarget
45 # probe = FTPtransfer # if the default probe is something else
46 host = my.host
47 localaddr = myhost-nat-if
48 passive = yes
49 password = test-password
50 pings = 5
51 port = 3255
52 timeout = 10
53 username = test-user
54
56 The probe uses the Net::FTP perl client to run performance tests using
57 an FTP server as a target. This probe is intrusive as it transfers real
58 data. By using real data we get a fair shot at figuring out what a link
59 is capable of when it comes to transfering actual files.
60 The password can be specified either (in order of precedence, with the
62 latter overriding the former) in the probe-specific variable
63 `password', in an external file or in the target-specific variable
64 `password'. The location of this external file is given in the probe-
65 specific variable `passwordfile'. See
66 Smokeping::probes::passwordchecker(3pm) for the format of this file
67 (summary: colon-separated triplets of the form
68 `<host>:<username>:<password>')
69 The probe tries to be nice to the server and waits at least X seconds
71 between starting filetransfers, where X is the value of the probe
72 specific `min_interval' variable (1 by default).
73 Many variables can be specified either in the probe or in the target
75 definition, the target-specific variable will override the prove-
76 specific variable.
77 If your transfer takes a lot of time, you may want to make sure to set
79 the timeout and max_rtt properly so that smokeping does not abort the
80 transfers of limit the graph size.
81
83 Supported probe-specific variables:
84 destfile
86 Normally the destination filename is the same as the source
87 filename (without the path). If you want keep files in different
88 directories this may not work, and you have to specify destfile as
89 well.
90 Example value: path/to/destinationfile.xxx
92 forks
94 Run this many concurrent processes at maximum
95 Example value: 5
97 Default value: 5
99 min_interval
101 The minimum interval between each starting ftp sessions in seconds.
102 Default value: 1
104 mode
106 The ftp probe can be in either put or get mode. If it is in put
107 mode then it will send a file to the ftp server. In get mode it
108 will retrieve a file from the ftp server.
109 Example value: get
111 This setting is mandatory.
113 offset
115 If you run many probes concurrently you may want to prevent them
116 from hitting your network all at the same time. Using the probe-
117 specific offset parameter you can change the point in time when
118 each probe will be run. Offset is specified in % of total interval,
119 or alternatively as 'random', and the offset from the 'General'
120 section is used if nothing is specified here. Note that this does
121 NOT influence the rrds itself, it is just a matter of when data
122 acqusition is initiated. (This variable is only applicable if the
123 variable 'concurrentprobes' is set in the 'General' section.)
124 Example value: 50%
126 passwordfile
128 Location of the file containing usernames and passwords.
129 Example value: /some/place/secret
131 srcfile
133 The name of the source file. If the probe is in put mode, this file
134 has to be on the local machine, if the probe is in get mode then
135 this file should sit in the remote ftp account.
136 Example value: src/path/mybig.pdf
138 This setting is mandatory.
140 step
142 Duration of the base interval that this probe should use, if
143 different from the one specified in the 'Database' section. Note
144 that the step in the RRD files is fixed when they are originally
145 generated, and if you change the step parameter afterwards, you'll
146 have to delete the old RRD files or somehow convert them. (This
147 variable is only applicable if the variable 'concurrentprobes' is
148 set in the 'General' section.)
149 Example value: 300
151 timeout
153 The timeout is the maximum amount of time you will allow the probe
154 to transfer the file. If the probe does not succeed to transfer in
155 the time specified, it will get killed and a 'loss' will be loged.
156 Since FTPtransfer is an invasive probe you should make sure you do
158 not load the link for more than a few seconds anyway. Smokeping
159 curently has a hard limit of 180 seconds for any RTT.
160 Example value: 15
162 This setting is mandatory.
164 Supported target-specific variables:
166 localaddr
168 The local address to be used when making connections
169 Example value: myhost-nat-if
171 passive
173 Use passive FTP protocol
174 Example value: yes
176 password
178 The password for the user, if not present in the password file.
179 Example value: test-password
181 pings
183 How many pings should be sent to each target, if different from the
184 global value specified in the Database section. Note that the
185 number of pings in the RRD files is fixed when they are originally
186 generated, and if you change this parameter afterwards, you'll have
187 to delete the old RRD files or somehow convert them.
188 Example value: 5
190 port
192 A non-standard FTP port to be used
193 Example value: 3255
195 timeout
197 Timeout in seconds for the FTP transfer to complete.
198 Example value: 10
200 username
202 The username to be tested.
203 Example value: test-user
205
207 Tobias Oetiker <tobi@oetiker.ch> sponsored by Virtela
208
210 This probe has the capability for saturating your links, so don't use
211 it unless you know what you are doing.
212 The FTPtransfer probe measures bandwidth, but we report the number of
214 seconds it took to transfer the 'reference' file. This is because
215 curently the notion of Round Trip Time is at the core of the
216 application. It would take some re-engineering to split this out in
217 plugins and thus make it configurable ...
2182.7.2 2018-07-15 Smokeping_probes_FTPtransfer(3)