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Regression test: Slave restart with EVALSHA in backlog issue #4483.

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antirez 2017-11-30 18:37:07 +01:00
parent ab3d3aca48
commit d06fbbdd54
1 changed files with 64 additions and 1 deletions
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65
tests/integration/psync2.tcl
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@ -10,7 +10,7 @@ start_server {} {
# Config
set debug_msg 0 ; # Enable additional debug messages
set no_exit 0; ; # Do not exit at end of the test
set no_exit 0 ; # Do not exit at end of the test
set duration 20 ; # Total test seconds
@ -175,6 +175,69 @@ start_server {} {
assert {$sync_count == $new_sync_count}
}
test "PSYNC2: Slave RDB restart with EVALSHA in backlog issue #4483" {
# Pick a random slave
set slave_id [expr {($master_id+1)%5}]
set sync_count [status $R($master_id) sync_full]
# Make sure to replicate the first EVAL while the salve is online
# so that it's part of the scripts the master believes it's safe
# to propagate as EVALSHA.
$R($master_id) EVAL {return redis.call("incr","__mycounter")} 0
$R($master_id) EVALSHA e6e0b547500efcec21eddb619ac3724081afee89 0
# Wait for the two to sync
wait_for_condition 50 1000 {
[$R($master_id) debug digest] == [$R($slave_id) debug digest]
} else {
fail "Slave not reconnecting"
}
# Prevent the slave from receiving master updates, and at
# the same time send a new script several times to the
# master, so that we'll end with EVALSHA into the backlog.
$R($slave_id) slaveof 127.0.0.1 0
$R($master_id) EVALSHA e6e0b547500efcec21eddb619ac3724081afee89 0
$R($master_id) EVALSHA e6e0b547500efcec21eddb619ac3724081afee89 0
$R($master_id) EVALSHA e6e0b547500efcec21eddb619ac3724081afee89 0
catch {
$R($slave_id) config rewrite
$R($slave_id) debug restart
}
# Reconfigure the slave correctly again, when it's back online.
set retry 50
while {$retry} {
if {[catch {
$R($slave_id) slaveof $master_host $master_port
}]} {
after 1000
} else {
break
}
incr retry -1
}
# The master should be back at 4 slaves eventually
wait_for_condition 50 1000 {
[status $R($master_id) connected_slaves] == 4
} else {
fail "Slave not reconnecting"
}
set new_sync_count [status $R($master_id) sync_full]
assert {$sync_count == $new_sync_count}
# However if the slave started with the full state of the
# scripting engine, we should now have the same digest.
wait_for_condition 50 1000 {
[$R($master_id) debug digest] == [$R($slave_id) debug digest]
} else {
fail "Debug digest mismatch between master and slave in post-restart handshake"
}
}
if {$no_exit} {
while 1 { puts -nonewline .; flush stdout; after 1000}
}