Closed Bug 837982 Opened 11 years ago Closed 11 years ago

Web QA's Mac Minis' network requests frequently time out connecting to hosts

Categories

(Infrastructure & Operations Graveyard :: NetOps, task)

Product:
Infrastructure & Operations Graveyard
Component:
NetOps
Type:
task
Priority:
Not set
Severity:
normal

Tracking

(Not tracked)

Status:
VERIFIED FIXED

People

(Reporter: stephend, Assigned: cransom)

References

(
URL
)

Details

On our Mac Minis [1] (located on the 2nd floor in Mountain View), we're seeing really slow throughput and connection speeds to various hosts.

The weird thing is that nslookup, ping, traceoute, and dig all seem fine -- that is, doesn't seem to be DNS.

http://screencast.com/t/gBvRb5wu captures some of that.

[1] https://wiki.mozilla.org/QA/Execution/Web_Testing/Automation/Selenium_Grid#Architecture

What can I try to troubleshoot?
I worked on this with :stephend on irc. we are working on resolving the root cause currently.
Assignee: network-operations → cransom
Severity: critical → normal
isolated the main issue. when we finished hooking in phx1 into our mpls network, we did not adequately account for the increased MTU costs of the transit traffic. after adjusting them on our border routers and removing the mss tweak in mtv1, verified traffic is flowing properly.
Status: NEW → RESOLVED
Closed: 11 years ago
Resolution: --- → FIXED
Verified FIXED; thanks again, Casey!
Status: RESOLVED → VERIFIED
Product: mozilla.org → Infrastructure & Operations
Product: Infrastructure & Operations → Infrastructure & Operations Graveyard
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