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Merge branch 'unstable' of github.com:/antirez/redis into unstable

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antirez 2020-05-17 18:24:48 +02:00
commit 0ca2f4f824
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52
tests/integration/replication.tcl
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@ -637,3 +637,55 @@ start_server {tags {"repl"}} {
} }
} }
} }
test {replicaof right after disconnection} {
# this is a rare race condition that was reproduced sporadically by the psync2 unit.
# see details in #7205
start_server {tags {"repl"}} {
set replica1 [srv 0 client]
set replica1_host [srv 0 host]
set replica1_port [srv 0 port]
set replica1_log [srv 0 stdout]
start_server {} {
set replica2 [srv 0 client]
set replica2_host [srv 0 host]
set replica2_port [srv 0 port]
set replica2_log [srv 0 stdout]
start_server {} {
set master [srv 0 client]
set master_host [srv 0 host]
set master_port [srv 0 port]
$replica1 replicaof $master_host $master_port
$replica2 replicaof $master_host $master_port
wait_for_condition 50 100 {
[string match {*master_link_status:up*} [$replica1 info replication]] &&
[string match {*master_link_status:up*} [$replica2 info replication]]
} else {
fail "Can't turn the instance into a replica"
}
set rd [redis_deferring_client -1]
$rd debug sleep 1
after 100
# when replica2 will wake up from the sleep it will find both disconnection
# from it's master and also a replicaof command at the same event loop
$master client kill type replica
$replica2 replicaof $replica1_host $replica1_port
$rd read
wait_for_condition 50 100 {
[string match {*master_link_status:up*} [$replica2 info replication]]
} else {
fail "role change failed."
}
# make sure psync succeeded, and there were no unexpected full syncs.
assert_equal [status $master sync_full] 2
assert_equal [status $replica1 sync_full] 0
assert_equal [status $replica2 sync_full] 0
}
}
}
}