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-rw-r--r--tests/integration/rdb.tcl419
1 files changed, 419 insertions, 0 deletions
diff --git a/tests/integration/rdb.tcl b/tests/integration/rdb.tcl
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+tags {"rdb external:skip"} {
+
+set server_path [tmpdir "server.rdb-encoding-test"]
+
+# Copy RDB with different encodings in server path
+exec cp tests/assets/encodings.rdb $server_path
+exec cp tests/assets/list-quicklist.rdb $server_path
+
+start_server [list overrides [list "dir" $server_path "dbfilename" "list-quicklist.rdb" save ""]] {
+ test "test old version rdb file" {
+ r select 0
+ assert_equal [r get x] 7
+ assert_encoding listpack list
+ r lpop list
+ } {7}
+}
+
+start_server [list overrides [list "dir" $server_path "dbfilename" "encodings.rdb"]] {
+ test "RDB encoding loading test" {
+ r select 0
+ csvdump r
+ } {"0","compressible","string","aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
+"0","hash","hash","a","1","aa","10","aaa","100","b","2","bb","20","bbb","200","c","3","cc","30","ccc","300","ddd","400","eee","5000000000",
+"0","hash_zipped","hash","a","1","b","2","c","3",
+"0","list","list","1","2","3","a","b","c","100000","6000000000","1","2","3","a","b","c","100000","6000000000","1","2","3","a","b","c","100000","6000000000",
+"0","list_zipped","list","1","2","3","a","b","c","100000","6000000000",
+"0","number","string","10"
+"0","set","set","1","100000","2","3","6000000000","a","b","c",
+"0","set_zipped_1","set","1","2","3","4",
+"0","set_zipped_2","set","100000","200000","300000","400000",
+"0","set_zipped_3","set","1000000000","2000000000","3000000000","4000000000","5000000000","6000000000",
+"0","string","string","Hello World"
+"0","zset","zset","a","1","b","2","c","3","aa","10","bb","20","cc","30","aaa","100","bbb","200","ccc","300","aaaa","1000","cccc","123456789","bbbb","5000000000",
+"0","zset_zipped","zset","a","1","b","2","c","3",
+}
+}
+
+set server_path [tmpdir "server.rdb-startup-test"]
+
+start_server [list overrides [list "dir" $server_path] keep_persistence true] {
+ test {Server started empty with non-existing RDB file} {
+ debug_digest
+ } {0000000000000000000000000000000000000000}
+ # Save an RDB file, needed for the next test.
+ r save
+}
+
+start_server [list overrides [list "dir" $server_path] keep_persistence true] {
+ test {Server started empty with empty RDB file} {
+ debug_digest
+ } {0000000000000000000000000000000000000000}
+}
+
+start_server [list overrides [list "dir" $server_path] keep_persistence true] {
+ test {Test RDB stream encoding} {
+ for {set j 0} {$j < 1000} {incr j} {
+ if {rand() < 0.9} {
+ r xadd stream * foo abc
+ } else {
+ r xadd stream * bar $j
+ }
+ }
+ r xgroup create stream mygroup 0
+ set records [r xreadgroup GROUP mygroup Alice COUNT 2 STREAMS stream >]
+ r xdel stream [lindex [lindex [lindex [lindex $records 0] 1] 1] 0]
+ r xack stream mygroup [lindex [lindex [lindex [lindex $records 0] 1] 0] 0]
+ set digest [debug_digest]
+ r config set sanitize-dump-payload no
+ r debug reload
+ set newdigest [debug_digest]
+ assert {$digest eq $newdigest}
+ }
+ test {Test RDB stream encoding - sanitize dump} {
+ r config set sanitize-dump-payload yes
+ r debug reload
+ set newdigest [debug_digest]
+ assert {$digest eq $newdigest}
+ }
+ # delete the stream, maybe valgrind will find something
+ r del stream
+}
+
+# Helper function to start a server and kill it, just to check the error
+# logged.
+set defaults {}
+proc start_server_and_kill_it {overrides code} {
+ upvar defaults defaults srv srv server_path server_path
+ set config [concat $defaults $overrides]
+ set srv [start_server [list overrides $config keep_persistence true]]
+ uplevel 1 $code
+ kill_server $srv
+}
+
+# Make the RDB file unreadable
+file attributes [file join $server_path dump.rdb] -permissions 0222
+
+# Detect root account (it is able to read the file even with 002 perm)
+set isroot 0
+catch {
+ open [file join $server_path dump.rdb]
+ set isroot 1
+}
+
+# Now make sure the server aborted with an error
+if {!$isroot} {
+ start_server_and_kill_it [list "dir" $server_path] {
+ test {Server should not start if RDB file can't be open} {
+ wait_for_condition 50 100 {
+ [string match {*Fatal error loading*} \
+ [exec tail -1 < [dict get $srv stdout]]]
+ } else {
+ fail "Server started even if RDB was unreadable!"
+ }
+ }
+ }
+}
+
+# Fix permissions of the RDB file.
+file attributes [file join $server_path dump.rdb] -permissions 0666
+
+# Corrupt its CRC64 checksum.
+set filesize [file size [file join $server_path dump.rdb]]
+set fd [open [file join $server_path dump.rdb] r+]
+fconfigure $fd -translation binary
+seek $fd -8 end
+puts -nonewline $fd "foobar00"; # Corrupt the checksum
+close $fd
+
+# Now make sure the server aborted with an error
+start_server_and_kill_it [list "dir" $server_path] {
+ test {Server should not start if RDB is corrupted} {
+ wait_for_condition 50 100 {
+ [string match {*CRC error*} \
+ [exec tail -10 < [dict get $srv stdout]]]
+ } else {
+ fail "Server started even if RDB was corrupted!"
+ }
+ }
+}
+
+start_server {} {
+ test {Test FLUSHALL aborts bgsave} {
+ r config set save ""
+ # 5000 keys with 1ms sleep per key should take 5 second
+ r config set rdb-key-save-delay 1000
+ populate 5000
+ assert_lessthan 999 [s rdb_changes_since_last_save]
+ r bgsave
+ assert_equal [s rdb_bgsave_in_progress] 1
+ r flushall
+ # wait a second max (bgsave should take 5)
+ wait_for_condition 10 100 {
+ [s rdb_bgsave_in_progress] == 0
+ } else {
+ fail "bgsave not aborted"
+ }
+ # verify that bgsave failed, by checking that the change counter is still high
+ assert_lessthan 999 [s rdb_changes_since_last_save]
+ # make sure the server is still writable
+ r set x xx
+ }
+
+ test {bgsave resets the change counter} {
+ r config set rdb-key-save-delay 0
+ r bgsave
+ wait_for_condition 50 100 {
+ [s rdb_bgsave_in_progress] == 0
+ } else {
+ fail "bgsave not done"
+ }
+ assert_equal [s rdb_changes_since_last_save] 0
+ }
+}
+
+test {client freed during loading} {
+ start_server [list overrides [list key-load-delay 50 loading-process-events-interval-bytes 1024 rdbcompression no save "900 1"]] {
+ # create a big rdb that will take long to load. it is important
+ # for keys to be big since the server processes events only once in 2mb.
+ # 100mb of rdb, 100k keys will load in more than 5 seconds
+ r debug populate 100000 key 1000
+
+ restart_server 0 false false
+
+ # make sure it's still loading
+ assert_equal [s loading] 1
+
+ # connect and disconnect 5 clients
+ set clients {}
+ for {set j 0} {$j < 5} {incr j} {
+ lappend clients [redis_deferring_client]
+ }
+ foreach rd $clients {
+ $rd debug log bla
+ }
+ foreach rd $clients {
+ $rd read
+ }
+ foreach rd $clients {
+ $rd close
+ }
+
+ # make sure the server freed the clients
+ wait_for_condition 100 100 {
+ [s connected_clients] < 3
+ } else {
+ fail "clients didn't disconnect"
+ }
+
+ # make sure it's still loading
+ assert_equal [s loading] 1
+
+ # no need to keep waiting for loading to complete
+ exec kill [srv 0 pid]
+ }
+}
+
+start_server {} {
+ test {Test RDB load info} {
+ r debug populate 1000
+ r save
+ assert {[r lastsave] <= [lindex [r time] 0]}
+ restart_server 0 true false
+ wait_done_loading r
+ assert {[s rdb_last_load_keys_expired] == 0}
+ assert {[s rdb_last_load_keys_loaded] == 1000}
+
+ r debug set-active-expire 0
+ for {set j 0} {$j < 1024} {incr j} {
+ r select [expr $j%16]
+ r set $j somevalue px 10
+ }
+ after 20
+
+ r save
+ restart_server 0 true false
+ wait_done_loading r
+ assert {[s rdb_last_load_keys_expired] == 1024}
+ assert {[s rdb_last_load_keys_loaded] == 1000}
+ }
+}
+
+# Our COW metrics (Private_Dirty) work only on Linux
+set system_name [string tolower [exec uname -s]]
+set page_size [exec getconf PAGESIZE]
+if {$system_name eq {linux} && $page_size == 4096} {
+
+start_server {overrides {save ""}} {
+ test {Test child sending info} {
+ # make sure that rdb_last_cow_size and current_cow_size are zero (the test using new server),
+ # so that the comparisons during the test will be valid
+ assert {[s current_cow_size] == 0}
+ assert {[s current_save_keys_processed] == 0}
+ assert {[s current_save_keys_total] == 0}
+
+ assert {[s rdb_last_cow_size] == 0}
+
+ # using a 200us delay, the bgsave is empirically taking about 10 seconds.
+ # we need it to take more than some 5 seconds, since redis only report COW once a second.
+ r config set rdb-key-save-delay 200
+ r config set loglevel debug
+
+ # populate the db with 10k keys of 512B each (since we want to measure the COW size by
+ # changing some keys and read the reported COW size, we are using small key size to prevent from
+ # the "dismiss mechanism" free memory and reduce the COW size)
+ set rd [redis_deferring_client 0]
+ set size 500 ;# aim for the 512 bin (sds overhead)
+ set cmd_count 10000
+ for {set k 0} {$k < $cmd_count} {incr k} {
+ $rd set key$k [string repeat A $size]
+ }
+
+ for {set k 0} {$k < $cmd_count} {incr k} {
+ catch { $rd read }
+ }
+
+ $rd close
+
+ # start background rdb save
+ r bgsave
+
+ set current_save_keys_total [s current_save_keys_total]
+ if {$::verbose} {
+ puts "Keys before bgsave start: $current_save_keys_total"
+ }
+
+ # on each iteration, we will write some key to the server to trigger copy-on-write, and
+ # wait to see that it reflected in INFO.
+ set iteration 1
+ set key_idx 0
+ while 1 {
+ # take samples before writing new data to the server
+ set cow_size [s current_cow_size]
+ if {$::verbose} {
+ puts "COW info before copy-on-write: $cow_size"
+ }
+
+ set keys_processed [s current_save_keys_processed]
+ if {$::verbose} {
+ puts "current_save_keys_processed info : $keys_processed"
+ }
+
+ # trigger copy-on-write
+ set modified_keys 16
+ for {set k 0} {$k < $modified_keys} {incr k} {
+ r setrange key$key_idx 0 [string repeat B $size]
+ incr key_idx 1
+ }
+
+ # changing 16 keys (512B each) will create at least 8192 COW (2 pages), but we don't want the test
+ # to be too strict, so we check for a change of at least 4096 bytes
+ set exp_cow [expr $cow_size + 4096]
+ # wait to see that current_cow_size value updated (as long as the child is in progress)
+ wait_for_condition 80 100 {
+ [s rdb_bgsave_in_progress] == 0 ||
+ [s current_cow_size] >= $exp_cow &&
+ [s current_save_keys_processed] > $keys_processed &&
+ [s current_fork_perc] > 0
+ } else {
+ if {$::verbose} {
+ puts "COW info on fail: [s current_cow_size]"
+ puts [exec tail -n 100 < [srv 0 stdout]]
+ }
+ fail "COW info wasn't reported"
+ }
+
+ # assert that $keys_processed is not greater than total keys.
+ assert_morethan_equal $current_save_keys_total $keys_processed
+
+ # for no accurate, stop after 2 iterations
+ if {!$::accurate && $iteration == 2} {
+ break
+ }
+
+ # stop iterating if the bgsave completed
+ if { [s rdb_bgsave_in_progress] == 0 } {
+ break
+ }
+
+ incr iteration 1
+ }
+
+ # make sure we saw report of current_cow_size
+ if {$iteration < 2 && $::verbose} {
+ puts [exec tail -n 100 < [srv 0 stdout]]
+ }
+ assert_morethan_equal $iteration 2
+
+ # if bgsave completed, check that rdb_last_cow_size (fork exit report)
+ # is at least 90% of last rdb_active_cow_size.
+ if { [s rdb_bgsave_in_progress] == 0 } {
+ set final_cow [s rdb_last_cow_size]
+ set cow_size [expr $cow_size * 0.9]
+ if {$final_cow < $cow_size && $::verbose} {
+ puts [exec tail -n 100 < [srv 0 stdout]]
+ }
+ assert_morethan_equal $final_cow $cow_size
+ }
+ }
+}
+} ;# system_name
+
+exec cp -f tests/assets/scriptbackup.rdb $server_path
+start_server [list overrides [list "dir" $server_path "dbfilename" "scriptbackup.rdb" "appendonly" "no"]] {
+ # the script is: "return redis.call('set', 'foo', 'bar')""
+ # its sha1 is: a0c38691e9fffe4563723c32ba77a34398e090e6
+ test {script won't load anymore if it's in rdb} {
+ assert_equal [r script exists a0c38691e9fffe4563723c32ba77a34398e090e6] 0
+ }
+}
+
+start_server {} {
+ test "failed bgsave prevents writes" {
+ # Make sure the server saves an RDB on shutdown
+ r config set save "900 1"
+
+ r config set rdb-key-save-delay 10000000
+ populate 1000
+ r set x x
+ r bgsave
+ set pid1 [get_child_pid 0]
+ catch {exec kill -9 $pid1}
+ waitForBgsave r
+
+ # make sure a read command succeeds
+ assert_equal [r get x] x
+
+ # make sure a write command fails
+ assert_error {MISCONF *} {r set x y}
+
+ # repeate with script
+ assert_error {MISCONF *} {r eval {
+ return redis.call('set','x',1)
+ } 1 x
+ }
+ assert_equal {x} [r eval {
+ return redis.call('get','x')
+ } 1 x
+ ]
+
+ # again with script using shebang
+ assert_error {MISCONF *} {r eval {#!lua
+ return redis.call('set','x',1)
+ } 1 x
+ }
+ assert_equal {x} [r eval {#!lua flags=no-writes
+ return redis.call('get','x')
+ } 1 x
+ ]
+
+ r config set rdb-key-save-delay 0
+ r bgsave
+ waitForBgsave r
+
+ # server is writable again
+ r set x y
+ } {OK}
+}
+
+} ;# tags
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-18 08:21:28 +0000