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release/v20.03: fix(ServeTask): Return error if server is not ready (#6019) #6021

Merged
merged 1 commit into from
Jul 16, 2020
Merged

release/v20.03: fix(ServeTask): Return error if server is not ready (#6019) #6021

merged 1 commit into from
Jul 16, 2020

Commits on Jul 16, 2020

  1. fix(ServeTask): Return error if server is not ready (#6019) 

    The grpcWorker.ServeTask function is called when a request is received
over the network (sent by a peer). This function doesn't consider the
health of the node before starting the processing of the request. If we
process a request before the node is ready, we might end up seeing
crashes similar to https://dgraph.atlassian.net/browse/DGRAPH-1934

Fixes DGRAPH-1934

This bug was seen when running jepsen bank test with
kill-alpha and kill-zero nemesis.

(cherry picked from commit 9293c97)
    Ibrahim Jarif committed Jul 16, 2020
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