Converted some existing PSYNC tests for multimaster
This commit is contained in:
Vivek Saini
parent
8a7ace0a34
commit
20c34a91da
102
tests/integration/psync2-reg-multimaster.tcl
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102
tests/integration/psync2-reg-multimaster.tcl
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# Issue 3899 regression test.
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# We create a chain of three instances: master -> slave -> slave2
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# and continuously break the link while traffic is generated by
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# keydb-benchmark. At the end we check that the data is the same
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# everywhere.
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start_server {tags {"psync2"} overrides {active-replica {yes} multi-master {yes} client-output-buffer-limit {replica 200mb 10mb 999999} } } {
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start_server {overrides {active-replica {yes} multi-master {yes} client-output-buffer-limit {replica 200mb 10mb 999999} } } {
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start_server {overrides {active-replica {yes} multi-master {yes} client-output-buffer-limit {replica 200mb 10mb 999999} } } {
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# Config
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set debug_msg 0 ; # Enable additional debug messages
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set no_exit 0 ; # Do not exit at end of the test
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set duration 20 ; # Total test seconds
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for {set j 0} {$j < 3} {incr j} {
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set R($j) [srv [expr 0-$j] client]
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set R_host($j) [srv [expr 0-$j] host]
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set R_port($j) [srv [expr 0-$j] port]
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set R_unixsocket($j) [srv [expr 0-$j] unixsocket]
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if {$debug_msg} {puts "Log file: [srv [expr 0-$j] stdout]"}
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}
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# Setup the replication and backlog parameters
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test "PSYNC2 #3899 regression: setup" {
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$R(0) slaveof $R_host(1) $R_port(1)
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$R(0) slaveof $R_host(2) $R_port(2)
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$R(1) slaveof $R_host(0) $R_port(0)
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$R(1) slaveof $R_host(2) $R_port(2)
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$R(2) slaveof $R_host(0) $R_port(0)
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$R(2) slaveof $R_host(1) $R_port(1)
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$R(0) set foo bar
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wait_for_condition 50 1000 {
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[status $R(1) master_link_status] == "up" &&
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[status $R(2) master_link_status] == "up" &&
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[$R(1) dbsize] == 1 &&
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[$R(2) dbsize] == 1
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} else {
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fail "Replicas not replicating from master"
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}
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$R(0) config set repl-backlog-size 200mb
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$R(1) config set repl-backlog-size 200mb
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$R(2) config set repl-backlog-size 200mb
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}
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set cycle_start_time [clock milliseconds]
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set bench_pid [exec src/keydb-benchmark -s $R_unixsocket(0) -n 10000000 -r 1000 incr __rand_int__ > /dev/null &]
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while 1 {
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set elapsed [expr {[clock milliseconds]-$cycle_start_time}]
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if {$elapsed > $duration*1000} break
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if {rand() < .05} {
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test "PSYNC2 #3899 regression: kill first replica" {
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$R(1) client kill type master
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}
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}
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if {rand() < .05} {
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test "PSYNC2 #3899 regression: kill chained replica" {
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$R(2) client kill type master
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}
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}
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after 100
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}
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exec kill -9 $bench_pid
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if {$debug_msg} {
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for {set j 0} {$j < 100} {incr j} {
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if {
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[$R(0) debug digest] == [$R(1) debug digest] &&
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[$R(1) debug digest] == [$R(2) debug digest]
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} break
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puts [$R(0) debug digest]
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puts [$R(1) debug digest]
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puts [$R(2) debug digest]
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after 1000
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}
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}
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test "PSYNC2 #3899 regression: verify consistency" {
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wait_for_condition 50 1000 {
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([$R(0) debug digest] eq [$R(1) debug digest]) &&
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([$R(1) debug digest] eq [$R(2) debug digest])
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} else {
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set csv3 [csvdump {r -2}]
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set csv2 [csvdump {r -1}]
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set csv1 [csvdump r]
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set fd [open /tmp/repldump1.txt w]
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puts -nonewline $fd $csv1
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close $fd
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set fd [open /tmp/repldump2.txt w]
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puts -nonewline $fd $csv2
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close $fd
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set fd [open /tmp/repldump3.txt w]
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puts -nonewline $fd $csv3
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close $fd
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fail [format "The three instances have different data sets:\n\tnode 1: %s\n\tnode 2: %s\n\tnode 3: %s\nRun diff -u against /tmp/repldump*.txt for more info" [$R(0) debug digest] [$R(1) debug digest] [$R(2) debug digest] ]
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}
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}
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}}}
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153
tests/integration/replication-psync-multimaster.tcl
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153
tests/integration/replication-psync-multimaster.tcl
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# Creates a master-replica pair and breaks the link continuously to force
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# partial resyncs attempts, all this while flooding the master with
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# write queries.
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#
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# You can specify backlog size, ttl, delay before reconnection, test duration
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# in seconds, and an additional condition to verify at the end.
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#
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# If reconnect is > 0, the test actually try to break the connection and
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# reconnect with the master, otherwise just the initial synchronization is
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# checked for consistency.
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proc test_psync {descr duration backlog_size backlog_ttl delay cond mdl sdl reconnect} {
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start_server [list tags [list "repl"] overrides [list active-replica yes client-output-buffer-limit [list replica $backlog_size $backlog_size 9999999] ] ] {
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start_server [list overrides [list client-output-buffer-limit [list replica $backlog_size $backlog_size 9999999] active-replica yes ] ] {
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set master [srv -1 client]
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set master_host [srv -1 host]
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set master_port [srv -1 port]
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set replica [srv 0 client]
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set replica_host [srv 0 host]
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set replica_port [srv 0 port]
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$master config set repl-backlog-size $backlog_size
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$master config set repl-backlog-ttl $backlog_ttl
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$master config set repl-diskless-sync $mdl
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$master config set repl-diskless-sync-delay 1
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$replica config set repl-diskless-load $sdl
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test {Replica should be able to synchronize with the master} {
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$replica replicaof $master_host $master_port
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}
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after 1000
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test {Master should be able to synchronize with the replica} {
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$master replicaof $replica_host $replica_port
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}
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set load_handle0 [start_climbing_load $master_host $master_port 9 100000]
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set load_handle1 [start_climbing_load $master_host $master_port 11 100000]
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set load_handle2 [start_climbing_load $master_host $master_port 12 100000]
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# Check that the background clients are actually writing.
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test {Detect write load to master} {
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wait_for_condition 50 1000 {
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[$master dbsize] > 100
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} else {
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fail "Can't detect write load from background clients."
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}
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}
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test "Test replication partial resync: $descr (diskless: $mdl, $sdl, reconnect: $reconnect)" {
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# Now while the clients are writing data, break the maste-replica
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# link multiple times.
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if ($reconnect) {
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for {set j 0} {$j < $duration*10} {incr j} {
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after 100
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# catch {puts "MASTER [$master dbsize] keys, REPLICA [$replica dbsize] keys"}
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if {($j % 20) == 0} {
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catch {
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if {$delay} {
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$replica multi
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$replica client kill $master_host:$master_port
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$replica debug sleep $delay
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$replica exec
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} else {
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$replica client kill $master_host:$master_port
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}
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}
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}
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}
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}
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stop_bg_complex_data $load_handle0
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stop_bg_complex_data $load_handle1
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stop_bg_complex_data $load_handle2
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# Wait for the replica to reach the "online"
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# state from the POV of the master.
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set retry 5000
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while {$retry} {
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set info [$master info]
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if {[string match {*slave0:*state=online*} $info]} {
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break
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} else {
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incr retry -1
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after 100
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}
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}
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if {$retry == 0} {
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error "assertion:replica not correctly synchronized"
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}
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# Wait that replica acknowledge it is online so
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# we are sure that DBSIZE and DEBUG DIGEST will not
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# fail because of timing issues. (-LOADING error)
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wait_for_condition 5000 100 {
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[lindex [$replica role] 3] eq {connected}
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} else {
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fail "replica still not connected after some time"
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}
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wait_for_condition 100 100 {
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[$master debug digest] == [$replica debug digest]
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} else {
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set csv1 [csvdump r]
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set csv2 [csvdump {r -1}]
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set fd [open /tmp/repldump1.txt w]
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puts -nonewline $fd $csv1
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close $fd
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set fd [open /tmp/repldump2.txt w]
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puts -nonewline $fd $csv2
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close $fd
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fail "Master - Replica inconsistency, Run diff -u against /tmp/repldump*.txt for more info"
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}
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assert {[$master dbsize] > 0}
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eval $cond
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}
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}
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}
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}
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foreach mdl {no yes} {
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foreach sdl {disabled swapdb} {
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test_psync {no reconnection, just sync} 6 1000000 3600 0 {
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} $mdl $sdl 0
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test_psync {ok psync} 6 100000000 3600 0 {
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assert {[s -1 sync_partial_ok] > 0}
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} $mdl $sdl 1
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test_psync {no backlog} 6 100 3600 0.5 {
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assert {[s -1 sync_partial_err] > 0}
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} $mdl $sdl 1
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test_psync {ok after delay} 3 100000000 3600 3 {
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assert {[s -1 sync_partial_ok] > 0}
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} $mdl $sdl 1
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test_psync {backlog expired} 3 100000000 1 3 {
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assert {[s -1 sync_partial_err] > 0}
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} $mdl $sdl 1
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}
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}
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foreach mdl {no} {
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foreach sdl {swapdb} {
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test_psync {backlog expired} 3 100000000 1 3 {
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assert {[s -1 sync_partial_err] > 0}
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} $mdl $sdl 1
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}
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}
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