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Top Forums Shell Programming and Scripting Failure rate of a node / Data center Post 303020083 by Chubler_XL on Thursday 12th of July 2018 07:45:48 PM
Old 07-12-2018
How about this:

Code:
awk '
{
  for(i= 1; i< NF - 1; i+=3) {
    now=$i
    split($i, tm, ":")
    now=tm[1]*3600+tm[2]*60+tm[3]
    status=$(i+1)
    host=$(i+2)
    if(lastTime[host])
        totalTime[host] += now - lastTime[host]
    lastTime[host]=now
    if(status == "DN") Failure[host]++
    Reading[host]++
  }
}
END {
    for(host in lastTime)
       if (Failure[host])
           if (Failure[host] == Reading[host])
               print host " = 0"
           else
               print host " = " totalTime[host] / Failure[host]
       else
           print host " = No Failures"
}' infile


Infile:
Code:
08:51:36 DN 127.0.0.1 08:51:36 UN 127.0.0.2 08:51:36 UN 127.0.0.3 08:53:50 DN 127.0.0.1 08:53:50 DN 127.0.0.2 08:53:50 UN 127.0.0.3
08:58:36 DN 127.0.0.1 08:58:36 DN 127.0.0.2 08:58:36 UN 127.0.0.2

Result:
Code:
127.0.0.1 = 0
127.0.0.2 = 210
127.0.0.3 = No Failures


Last edited by Chubler_XL; 07-12-2018 at 08:58 PM.. Reason: Host always down should have zero
This User Gave Thanks to Chubler_XL For This Post:
 

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list(3) 						    InterNetNews Documentation							   list(3)

NAME
list - list routines SYNOPSIS
#include <inn/list.h> struct node { struct node *succ; struct node *pred; }; struct list { struct node *head; struct node *tail; struct node *tailpred; }; void list_new(struct list *list); struct node *list_addhead(struct list *list, struct node *node); struct node *list_addtail(struct list *list, struct node *node); struct node *list_head(struct list *list); struct node *list_tail(struct list *list); struct node *list_succ(struct node *node); struct node *list_pred(struct node *node); struct node *list_remhead(struct list *list); struct node *list_remtail(struct list *list); struct node *list_remove(struct node *node); struct node *list_insert(struct list *list, struct node *node, struct node *pred); bool list_isempty(struct list *list); DESCRIPTION
list_new initialises the list header list so as to create an empty list. list_addhead adds node to the head of list, returning the node just added. list_addtail adds node to the tail of list, returning the node just added. list_head returns a pointer to the the node at the head of list or NULL if the list is empty. list_tail returns a pointer to the the node at the tail of list or NULL if the list is empty. list_succ returns the next (successor) node on the list after node or NULL if node was the final node. list_pred returns the previous (predecessor) node on the list before node or NULL if node was the first node. list_remhead removes the first node from list and returns it to the caller. If the list is empty NULL is returned. list_remtail removes the last node from list and returns it to the caller. If the list is empty NULL is returned. list_remove removes node from the list it is on and returns it to the caller. list_insert inserts node onto list after the node pred. If pred is NULL then node is added to the head of list. HISTORY
Written by Alex Kiernan <alex.kiernan@thus.net> for InterNetNews 2.4.0. $Id: list.pod 7851 2008-05-26 19:33:08Z iulius $ INN 2.5.2 2009-05-21 list(3)
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