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Full Discussion: Pinging Host
Special Forums UNIX Desktop Questions & Answers Pinging Host Post 302961944 by Don Cragun on Monday 7th of December 2015 12:03:12 AM
Old 12-07-2015
Quote:
Originally Posted by 5sku5
I need to ping websites and I need to see which one has the highest delay.

My problem is I need to extract the name Facebook and the time=74.0 ms using awk. I need help doing this please...



Code:
PING facebook.com (173.252.90.36) 56(84) bytes of data.
64 bytes from edge-star-mini-shv-13-atn1.facebook.com (173.252.90.36): icmp_req=1 ttl=76 time=74.0 ms

--- facebook.com ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 74.087/74.087/74.087/0.000 ms
PING pbs.org (23.21.237.247) 56(84) bytes of data.

You say you want to extract Facebook from the data you showed us, but that string does not appear anywhere in the data you showed us.

Are all of the time values in milliseconds? I.e., do you need to extract the string ms, or do you just need the number following time=? (If you're trying to find a maximum time, it is much easier to get what you want if you are comparing numeric values instead of comparing alphanumeric strings. For example, as a number 11 is greater than 9, but the string "9 ms" is lexically greater than "11 ms".)

Why do you want "74 ms" instead of the "max" entry out of:
Code:
rtt min/avg/max/mdev = 74.087/74.087/74.087/0.000 ms

i.e., 74.087?

Do all of the ping entries you're processing just have one packet transmitted? (I.e., is what you showed us representative data of the input you're trying to process?)

What have you tried to solve this problem on your own?
 

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OCF_PACEMAKER_PINGD(7)					      Pacemaker Configuration					    OCF_PACEMAKER_PINGD(7)

NAME
ocf_pacemaker_pingd - pingd resource agent SYNOPSIS
[OCF_RESKEY_pidfile=string] [OCF_RESKEY_user=string] [OCF_RESKEY_dampen=integer] [OCF_RESKEY_set=string] [OCF_RESKEY_name=string] [OCF_RESKEY_section=string] [OCF_RESKEY_multiplier=integer] [OCF_RESKEY_host_list=string] [OCF_RESKEY_interval=integer] [OCF_RESKEY_attempts=integer] [OCF_RESKEY_timeout=integer] [OCF_RESKEY_options=string] pingd [start | stop | monitor | meta-data | validate-all] DESCRIPTION
This agent (ocf:pacemaker:pingd) has been replaced by the more reliable ocf:pacemaker:ping. It records (in the CIB) the current number of ping nodes (specified in the 'host_list' parameter) a cluster node can connect to. SUPPORTED PARAMETERS
OCF_RESKEY_pidfile = string [/pingd-] PID file OCF_RESKEY_user = string [root] The user we want to run pingd as The user we want to run pingd as OCF_RESKEY_dampen = integer [5s] Dampening interval The time to wait (dampening) further changes occur OCF_RESKEY_set = string [] Set name The name of the instance_attributes set to place the value in. Rarely needs to be specified. OCF_RESKEY_name = string [pingd] Attribute name The name of the attributes to set. This is the name to be used in the constraints. OCF_RESKEY_section = string [] Section name The section place the value in. Rarely needs to be specified. OCF_RESKEY_multiplier = integer [] Value multiplier The number by which to multiply the number of connected ping nodes by OCF_RESKEY_host_list = string [] Host list The list of ping nodes to count. Defaults to all configured ping nodes. Rarely needs to be specified. OCF_RESKEY_interval = integer [1] ping interval in seconds How often, in seconds, to check for node liveliness OCF_RESKEY_attempts = integer [2] no. of ping attempts Number of ping attempts, per host, before declaring it dead OCF_RESKEY_timeout = integer [2] ping timeout in seconds How long, in seconds, to wait before declaring a ping lost OCF_RESKEY_options = string [] Extra Options A catch all for any other options that need to be passed to pingd. AUTHOR
Andrew Beekhof <andrew@beekhof.net> Author. Pacemaker Configuration 06/10/2014 OCF_PACEMAKER_PINGD(7)
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