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Improve the PSYNC2 test reliability.

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This commit is contained in:
antirez 2020-05-16 18:03:28 +02:00
parent 624742d9b4
commit 96bb0c9471
1 changed files with 33 additions and 15 deletions
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48
tests/integration/psync2.tcl
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@ -12,7 +12,7 @@ start_server {} {
set no_exit 0 ; # Do not exit at end of the test
set duration 20 ; # Total test seconds
set duration 40 ; # Total test seconds
set genload 1 ; # Load master with writes at every cycle
@ -125,14 +125,16 @@ start_server {} {
}
}
# wait for all the slaves to be in sync with the master, due to pings, we have to re-sample the master constantly too
# wait for all the slaves to be in sync.
set masteroff [status $R($master_id) master_repl_offset]
wait_for_condition 500 100 {
[status $R($master_id) master_repl_offset] == [status $R(0) master_repl_offset] &&
[status $R($master_id) master_repl_offset] == [status $R(1) master_repl_offset] &&
[status $R($master_id) master_repl_offset] == [status $R(2) master_repl_offset] &&
[status $R($master_id) master_repl_offset] == [status $R(3) master_repl_offset] &&
[status $R($master_id) master_repl_offset] == [status $R(4) master_repl_offset]
[status $R(0) master_repl_offset] >= $masteroff &&
[status $R(1) master_repl_offset] >= $masteroff &&
[status $R(2) master_repl_offset] >= $masteroff &&
[status $R(3) master_repl_offset] >= $masteroff &&
[status $R(4) master_repl_offset] >= $masteroff
} else {
puts "Master ID is $master_id"
for {set j 0} {$j < 5} {incr j} {
puts "$j: sync_full: [status $R($j) sync_full]"
puts "$j: id1 : [status $R($j) master_replid]:[status $R($j) master_repl_offset]"
@ -140,17 +142,11 @@ start_server {} {
puts "$j: backlog : firstbyte=[status $R($j) repl_backlog_first_byte_offset] len=[status $R($j) repl_backlog_histlen]"
puts "---"
}
fail "Slaves are not in sync with the master after too long time."
fail "Replicas offsets didn't catch up with the master after too long time."
}
# Put down the old master so that it cannot generate more
# replication stream, this way in the next master switch, the time at
# which we move slaves away is not important, each will have full
# history (otherwise PINGs will make certain slaves have more history),
# and sometimes a full resync will be needed.
$R($master_id) slaveof 127.0.0.1 0 ;# We use port zero to make it fail.
if {$debug_msg} {
puts "Master ID is $master_id"
for {set j 0} {$j < 5} {incr j} {
puts "$j: sync_full: [status $R($j) sync_full]"
puts "$j: id1 : [status $R($j) master_replid]:[status $R($j) master_repl_offset]"
@ -168,6 +164,28 @@ start_server {} {
assert {$sum == 4}
}
# In absence of pings, are the instances really able to have
# the exact same offset?
$R($master_id) config set repl-ping-replica-period 3600
wait_for_condition 500 100 {
[status $R($master_id) master_repl_offset] == [status $R(0) master_repl_offset] &&
[status $R($master_id) master_repl_offset] == [status $R(1) master_repl_offset] &&
[status $R($master_id) master_repl_offset] == [status $R(2) master_repl_offset] &&
[status $R($master_id) master_repl_offset] == [status $R(3) master_repl_offset] &&
[status $R($master_id) master_repl_offset] == [status $R(4) master_repl_offset]
} else {
puts "Master ID is $master_id"
for {set j 0} {$j < 5} {incr j} {
puts "$j: sync_full: [status $R($j) sync_full]"
puts "$j: id1 : [status $R($j) master_replid]:[status $R($j) master_repl_offset]"
puts "$j: id2 : [status $R($j) master_replid2]:[status $R($j) second_repl_offset]"
puts "$j: backlog : firstbyte=[status $R($j) repl_backlog_first_byte_offset] len=[status $R($j) repl_backlog_histlen]"
puts "---"
}
fail "Replicas and master offsets were unable to match *exactly*."
}
$R($master_id) config set repl-ping-replica-period 10
# Limit anyway the maximum number of cycles. This is useful when the
# test is skipped via --only option of the test suite. In that case
# we don't want to see many seconds of this test being just skipped.