orchestrator/global: Fix deadlock on updates#1760
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aaronlehmann merged 1 commit intomoby:masterfrom Nov 17, 2016
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The updater is wrongly called from inside a store transaction, which can lead to a deadlock if an update is already running. The new update tries to cancel the running one, but that existing update may be stuck trying to start a store transaction and therefore the new update waits forever for it to stop. To fix this, keep track of tasks that need to be updated, and call the updater outside the transaction. Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
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LGTM |
Current coverage is 55.35% (diff: 25.00%)@@ master #1760 diff @@
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Files 102 101 -1
Lines 16729 16503 -226
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- Hits 9210 9135 -75
+ Misses 6378 6239 -139
+ Partials 1141 1129 -12
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LGTM |
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Also cherry-picked to bump_v1.12.4 branch |
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The updater is wrongly called from inside a store transaction, which can
lead to a deadlock if an update is already running. The new update tries
to cancel the running one, but that existing update may be stuck trying
to start a store transaction and therefore the new update waits forever
for it to stop. To fix this, keep track of tasks that need to be
updated, and call the updater outside the transaction.
See moby/moby#28039
cc @dongluochen @aluzzardi