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The sharding_balance4.js test fails occasionally because more than 5 migrations manage to complete since the write operation started and because of this the write never manages to establish a shard version.
We should ignore up to certain number of NoProgressMade errors in order to make the test less likely to fail. This doesn't fix the inherent raciness though.
Top User Comments
xgen-internal-githook commented on Tue, 11 Apr 2017 20:42:29 +0000:
Author:
{u'username': u'kaloianm', u'name': u'Kaloian Manassiev', u'email': u'kaloian.manassiev@mongodb.com'}
Message: SERVER-28697 Ignore up to 3 consectuive NoProgressMade errors in sharding_balance4.js
(cherry picked from commit 0cda35aea08ed51180239af6b18996927aa799c7)
Branch: v3.4
https://github.com/mongodb/mongo/commit/dbb62093678716934383d0e777ff836623bf634b
xgen-internal-githook commented on Mon, 10 Apr 2017 20:06:36 +0000:
Author:
{u'username': u'kaloianm', u'name': u'Kaloian Manassiev', u'email': u'kaloian.manassiev@mongodb.com'}
Message: SERVER-28697 Ignore up to 3 consectuive NoProgressMade errors in sharding_balance4.js
Branch: master
https://github.com/mongodb/mongo/commit/0cda35aea08ed51180239af6b18996927aa799c7
