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Fix #8687

OSD: preemptively clean up incoming Connections from dead OSDs

Added by Greg Farnum about 5 years ago. Updated 6 months ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
-
Target version:
-
Start date:
Due date:
% Done:

0%

Source:
Development
Tags:
Backport:
Reviewed:
Affected Versions:
ceph-qa-suite:
Component(RADOS):
OSD
Pull request ID:

Description

If we get an incoming Connection from a dead OSD, but never actually receive a Message from it, we never kill the Connection.
To do so, we'll need some way of determining that it's a dead OSD based just on address; which naively sounds prohibitively expensive. Sage suggests that we could change our "nonce" assignment to include information about the epoch the OSD asked to mark itself up; we would then be able to know if it's newer or older than our current map, and determine with a reasonably-priced lookup whether it is still up or not.

History

#1 Updated by Patrick Donnelly 6 months ago

  • Project changed from Ceph to RADOS
  • Category deleted (OSD)
  • Start date deleted (06/27/2014)
  • Component(RADOS) OSD added

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