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Incident report
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Resolution: Fixed
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Trivial
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None
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None
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Debian Wheezy
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Sprint 1, Sprint 2
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4
Destination host has loadbalancer in front of set of hosts. Pinging loadbalancer causes host to respond and thus multiple respond are received and duplicate answer is misinterpreted as packet loss even-though there's none.
Global script ping is configured as: /bin/ping -c 3 {HOST.CONN} 2>&1
Below is example response from live host(IP removed/masked):
PING xxx.xx.xxx.xxx (xxx.xx.xxx.xxx) 56(84) bytes of data. 64 bytes from xxx.xx.xxx.xxx: icmp_req=1 ttl=117 time=4.26 ms 64 bytes from xxx.xx.xxx.xxx: icmp_req=1 ttl=117 time=4.28 ms (DUP!) 64 bytes from xxx.xx.xxx.xxx: icmp_req=2 ttl=117 time=4.36 ms 64 bytes from xxx.xx.xxx.xxx: icmp_req=2 ttl=117 time=4.38 ms (DUP!) 64 bytes from xxx.xx.xxx.xxx: icmp_req=3 ttl=117 time=4.32 ms --- xxx.xx.xxx.xxx ping statistics --- 3 packets transmitted, 3 received, +2 duplicates, 0% packet loss, time 2001ms rtt min/avg/max/mdev = 4.260/4.324/4.388/0.064 ms
See comments below for correct source data.
