redict/tests/integration/psync2-master-restart.tcl
Binbin 20533cc1d7
Tests: Do not save an RDB by default and add a SIGTERM default AOFRW test (#12064)
In order to speed up tests, avoid saving an RDB (mostly notable on shutdown),
except for tests that explicitly test the RDB mechanism

In addition, use `shutdown-on-sigterm force` to prevetn shutdown from failing
in case the server is in the middle of the initial AOFRW

Also a a test that checks that the `shutdown-on-sigterm default` is to refuse
shutdown if there's an initial AOFRW

Co-authored-by: Guy Benoish <guy.benoish@redislabs.com>
2023-04-18 16:14:26 +03:00

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start_server {tags {"psync2 external:skip"}} {
start_server {} {
start_server {} {
set master [srv 0 client]
set master_host [srv 0 host]
set master_port [srv 0 port]
set replica [srv -1 client]
set replica_host [srv -1 host]
set replica_port [srv -1 port]
set sub_replica [srv -2 client]
# Make sure the server saves an RDB on shutdown
$master config set save "3600 1"
# Because we will test partial resync later, we dont want a timeout to cause
# the master-replica disconnect, then the extra reconnections will break the
# sync_partial_ok stat test
$master config set repl-timeout 3600
$replica config set repl-timeout 3600
$sub_replica config set repl-timeout 3600
# Build replication chain
$replica replicaof $master_host $master_port
$sub_replica replicaof $replica_host $replica_port
wait_for_condition 50 100 {
[status $replica master_link_status] eq {up} &&
[status $sub_replica master_link_status] eq {up}
} else {
fail "Replication not started."
}
# Avoid PINGs
$master config set repl-ping-replica-period 3600
$master config rewrite
# Generate some data
createComplexDataset $master 1000
test "PSYNC2: Partial resync after Master restart using RDB aux fields" {
wait_for_condition 500 100 {
[status $master master_repl_offset] == [status $replica master_repl_offset] &&
[status $master master_repl_offset] == [status $sub_replica master_repl_offset]
} else {
fail "Replicas and master offsets were unable to match *exactly*."
}
set replid [status $master master_replid]
set offset [status $master master_repl_offset]
$replica config resetstat
catch {
# SHUTDOWN NOW ensures master doesn't send GETACK to replicas before
# shutting down which would affect the replication offset.
restart_server 0 true false true now
set master [srv 0 client]
}
wait_for_condition 50 1000 {
[status $replica master_link_status] eq {up} &&
[status $sub_replica master_link_status] eq {up}
} else {
fail "Replicas didn't sync after master restart"
}
# Make sure master restore replication info correctly
assert {[status $master master_replid] != $replid}
assert {[status $master master_repl_offset] == $offset}
assert {[status $master master_replid2] eq $replid}
assert {[status $master second_repl_offset] == [expr $offset+1]}
# Make sure master set replication backlog correctly
assert {[status $master repl_backlog_active] == 1}
assert {[status $master repl_backlog_first_byte_offset] == [expr $offset+1]}
assert {[status $master repl_backlog_histlen] == 0}
# Partial resync after Master restart
assert {[status $master sync_partial_ok] == 1}
assert {[status $replica sync_partial_ok] == 1}
}
test "PSYNC2: Partial resync after Master restart using RDB aux fields with expire" {
$master debug set-active-expire 0
for {set j 0} {$j < 1024} {incr j} {
$master select [expr $j%16]
$master set $j somevalue px 10
}
after 20
# Wait until master has received ACK from replica. If the master thinks
# that any replica is lagging when it shuts down, master would send
# GETACK to the replicas, affecting the replication offset.
set offset [status $master master_repl_offset]
wait_for_condition 500 100 {
[string match "*slave0:*,offset=$offset,*" [$master info replication]] &&
$offset == [status $replica master_repl_offset] &&
$offset == [status $sub_replica master_repl_offset]
} else {
show_cluster_status
fail "Replicas and master offsets were unable to match *exactly*."
}
set offset [status $master master_repl_offset]
$replica config resetstat
catch {
# Unlike the test above, here we use SIGTERM, which behaves
# differently compared to SHUTDOWN NOW if there are lagging
# replicas. This is just to increase coverage and let each test use
# a different shutdown approach. In this case there are no lagging
# replicas though.
restart_server 0 true false
set master [srv 0 client]
}
wait_for_condition 50 1000 {
[status $replica master_link_status] eq {up} &&
[status $sub_replica master_link_status] eq {up}
} else {
fail "Replicas didn't sync after master restart"
}
set expired_offset [status $master repl_backlog_histlen]
# Stale keys expired and master_repl_offset grows correctly
assert {[status $master rdb_last_load_keys_expired] == 1024}
assert {[status $master master_repl_offset] == [expr $offset+$expired_offset]}
# Partial resync after Master restart
assert {[status $master sync_partial_ok] == 1}
assert {[status $replica sync_partial_ok] == 1}
set digest [$master debug digest]
assert {$digest eq [$replica debug digest]}
assert {$digest eq [$sub_replica debug digest]}
}
test "PSYNC2: Full resync after Master restart when too many key expired" {
$master config set repl-backlog-size 16384
$master config rewrite
$master debug set-active-expire 0
# Make sure replication backlog is full and will be trimmed.
for {set j 0} {$j < 2048} {incr j} {
$master select [expr $j%16]
$master set $j somevalue px 10
}
after 20
wait_for_condition 500 100 {
[status $master master_repl_offset] == [status $replica master_repl_offset] &&
[status $master master_repl_offset] == [status $sub_replica master_repl_offset]
} else {
fail "Replicas and master offsets were unable to match *exactly*."
}
$replica config resetstat
catch {
# Unlike the test above, here we use SIGTERM. This is just to
# increase coverage and let each test use a different shutdown
# approach.
restart_server 0 true false
set master [srv 0 client]
}
wait_for_condition 50 1000 {
[status $replica master_link_status] eq {up} &&
[status $sub_replica master_link_status] eq {up}
} else {
fail "Replicas didn't sync after master restart"
}
# Replication backlog is full
assert {[status $master repl_backlog_first_byte_offset] > [status $master second_repl_offset]}
assert {[status $master sync_partial_ok] == 0}
assert {[status $master sync_full] == 1}
assert {[status $master rdb_last_load_keys_expired] == 2048}
assert {[status $replica sync_full] == 1}
set digest [$master debug digest]
assert {$digest eq [$replica debug digest]}
assert {$digest eq [$sub_replica debug digest]}
}
}}}