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# Check that replica keys and keys to slots map are right after failing to diskless load using SWAPDB.
source "../tests/includes/init-tests.tcl"
test "Create a primary with a replica" {
create_cluster 1 1
}
test "Cluster should start ok" {
assert_cluster_state ok
}
test "Cluster is writable" {
cluster_write_test 0
}
test "Main db not affected when fail to diskless load" {
set master [Rn 0]
set replica [Rn 1]
set master_id 0
set replica_id 1
$replica READONLY
$replica config set repl-diskless-load swapdb
$replica config set appendonly no
$replica config set save ""
$replica config rewrite
$master config set repl-backlog-size 1024
$master config set repl-diskless-sync yes
$master config set repl-diskless-sync-delay 0
$master config set rdb-key-save-delay 10000
$master config set rdbcompression no
$master config set appendonly no
$master config set save ""
# Write a key that belongs to slot 0
set slot0_key "06S"
$master set $slot0_key 1
wait_for_ofs_sync $master $replica
assert_equal {1} [$replica get $slot0_key]
assert_equal $slot0_key [$replica CLUSTER GETKEYSINSLOT 0 1]
# Save an RDB and kill the replica
$replica save
kill_instance redis $replica_id
# Delete the key from master
$master del $slot0_key
# Replica must full sync with master when start because replication
# backlog size is very small, and dumping rdb will cost several seconds.
set num 10000
set value [string repeat A 1024]
set rd [redis_deferring_client redis $master_id]
for {set j 0} {$j < $num} {incr j} {
$rd set $j $value
}
for {set j 0} {$j < $num} {incr j} {
$rd read
}
# Start the replica again
restart_instance redis $replica_id
$replica READONLY
# Start full sync, wait till after db started loading in background
wait_for_condition 500 10 {
[s $replica_id async_loading] eq 1
} else {
fail "Fail to full sync"
}
# Kill master, abort full sync
kill_instance redis $master_id
# Start full sync, wait till the replica detects the disconnection
wait_for_condition 500 10 {
[s $replica_id async_loading] eq 0
} else {
fail "Fail to full sync"
}
# Replica keys and keys to slots map still both are right
assert_equal {1} [$replica get $slot0_key]
assert_equal $slot0_key [$replica CLUSTER GETKEYSINSLOT 0 1]
}
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