Enterprise

mon.sh

ent-7.5.0, ent-8.0.0

1. Disk to Disk

• repl-diskless-sync no
• repl-diskless-load disabled

• 1번 서버 mon.sh: RDB 생성과 생성된 RDB 파일 전송(SEND)
------------------------------------------------------------------------------------------------- time ip:port keys cpu memory clients commands input output from to child ------------------------------------------------------------------------------------------------- 03:07:52 1:18504 995056 3.3% 2.9G 2 6 387B 259B 0B 0B RDB(0%) 03:07:53 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(4%) 03:07:54 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(8%) 03:07:55 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(13%) 03:07:56 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(17%) 03:07:57 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(22%) 03:07:58 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(22%) 03:07:59 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(26%) 03:08:00 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(31%) 03:08:01 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(35%) 03:08:02 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(40%) 03:08:03 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(44%) 03:08:04 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(49%) 03:08:05 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(53%) 03:08:06 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(57%) 03:08:07 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(62%) 03:08:08 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(66%) 03:08:09 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(71%) 03:08:10 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(75%) 03:08:11 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(75%) 03:08:12 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(80%) 03:08:13 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(84%) 03:08:14 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(89%) 03:08:15 1:18504 995056 0.1% 2.9G 2 1 23B 208B 0B 0B RDB(93%) 03:08:16 1:18504 995056 7.4% 2.9G 2 1 23B 208B 0B 42M SEND(2%) 03:08:17 1:18504 995056 31.6% 2.9G 2 1 23B 209B 0B 183M SEND(8%) 03:08:18 1:18504 995056 32.1% 2.9G 2 1 23B 210B 0B 184M SEND(15%) 03:08:19 1:18504 995056 35.1% 2.9G 2 1 23B 210B 0B 200M SEND(22%) 03:08:20 1:18504 995056 32.2% 2.9G 2 1 23B 210B 0B 185M SEND(28%) 03:08:21 1:18504 995056 32.1% 2.9G 2 1 23B 210B 0B 188M SEND(35%) 03:08:22 1:18504 995056 35.0% 2.9G 2 1 23B 210B 0B 204M SEND(40%) 03:08:23 1:18504 995056 33.8% 2.9G 2 1 23B 210B 0B 192M SEND(46%) 03:08:24 1:18504 995056 32.6% 2.9G 2 1 23B 210B 0B 192M SEND(53%) 03:08:25 1:18504 995056 32.8% 2.9G 2 1 23B 210B 0B 191M SEND(60%) 03:08:26 1:18504 995056 32.8% 2.9G 2 1 23B 210B 0B 191M SEND(71%) 03:08:27 1:18504 995056 28.6% 2.9G 2 1 46B 420B 0B 361M SEND(82%) 03:08:28 1:18504 995056 25.5% 2.9G 2 1 23B 210B 0B 320M SEND(93%) 03:08:29 1:18504 995056 23.8% 2.9G 2 1 23B 210B 0B 321M 03:08:30 1:18504 995056 27.6% 2.9G 2 1 24B 206B 0B 112M SUM 3066M

• 2번 서버 mon.sh: 데이터 받기(RECV)와 받은 데이터 메모리로 올리기(LOAD) ------------------------------------------------------------------------------------------------- time ip:port keys cpu memory clients commands input output from to child ------------------------------------------------------------------------------------------------- 03:08:15 1:18505 0 0.1% 997.1K 1 1 23B 207B 1B 0B RECV(0%) 03:08:16 1:18505 0 21.5% 997.1K 1 1 23B 211B 146M 0B RECV(6%) 03:08:17 1:18505 0 25.6% 997.1K 1 1 23B 212B 177M 0B RECV(11%) 03:08:18 1:18505 0 28.3% 997.1K 1 1 23B 212B 181M 0B RECV(17%) 03:08:19 1:18505 0 27.9% 997.1K 1 1 23B 212B 184M 0B RECV(24%) 03:08:20 1:18505 0 28.9% 997.1K 1 1 23B 212B 184M 0B RECV(31%) 03:08:21 1:18505 0 25.3% 997.3K 1 1 23B 212B 176M 0B RECV(37%) 03:08:22 1:18505 0 27.1% 997.3K 1 1 23B 212B 184M 0B RECV(44%) 03:08:23 1:18505 0 26.3% 997.3K 1 1 23B 212B 176M 0B RECV(49%) 03:08:24 1:18505 0 28.2% 997.3K 1 1 23B 212B 184M 0B RECV(55%) 03:08:25 1:18505 0 27.2% 997.3K 1 1 23B 212B 184M 0B RECV(62%) 03:08:26 1:18505 0 50.1% 997.3K 1 1 23B 212B 393M 0B RECV(75%) 03:08:27 1:18505 0 46.2% 997.3K 1 1 23B 212B 320M 0B RECV(89%) 03:08:28 1:18505 0 47.2% 997.3K 1 1 23B 212B 327M 0B RECV(99%) 03:08:29 1:18505 139902 74.8% 428.5M 1 1 46B 212B 57M 0B LOAD(14%) 03:08:30 1:18505 322052 86.1% 974.6M 1 2 117B 278B 0B 0B LOAD(32%) 03:08:31 1:18505 503510 87.1% 1.5G 1 1 23B 212B 0B 0B LOAD(50%) 03:08:32 1:18505 673195 84.7% 2.0G 1 1 23B 210B 0B 0B LOAD(67%) 03:08:33 1:18505 848419 86.7% 2.5G 1 1 23B 210B 0B 0B LOAD(85%) SUM 2873M

• 1번 서버 RDB 파일 생성 중 process 상태
USER PID LWP NLWP %CPU %MEM VSZ RSS CMD redis 10888 10888 5 12.5 38.1 3588636 3104756 ../src/redis-eserver 127.0.0.1:18504 redis 10927 10927 1 61.5 38.1 3588780 3103852 redis-rdb-bgsave 127.0.0.1:18504

• 1번 서버 LOG
10888:M 03:07:51.397662 # Starting BGSAVE for SYNC with target: disk 10888:M 03:07:51.429275 # Background saving started by pid 10927 10888:M 03:07:51.429354 # Master: Send +FULLRESYNC 9d3f4889b172709d69382af4e02ee15965353cbc 0 10927:C 03:07:51.429500 # Start saving rdb file 10927:C 03:07:51.429682 # db0 keys: 995056, expire keys: 0 10927:C 03:08:15.509053 # DB saved on disk 10927:C 03:08:15.546311 # RDB: 0 MB of memory used by copy-on-write 10888:M 03:08:15.684349 # Background saving terminated with success. 24 sec 10888:M 03:08:15.684431 # Start Sending Data 3013026751 bytes to 127.0.0.1:18505 10888:M 03:08:28.932785 # Finished Sending Data. 13 sec 10888:M 03:08:29.270257 # Clone 127.0.0.1:18505 ONLINE.

• 2번 서버 LOG
10922:M 03:07:51.429436 # Received +FULLRESYNC from 127.0.0.1:18504, receiving=1 10922:M 03:07:51.429472 # Full resync from master: 9d3f4889b172709d69382af4e02ee15965353cbc:0 10922:M 03:07:51.429491 # Wait to receive(Master is saving a rdb file) 10922:M 03:07:51.429531 # Open the temp file ./data/temp-1744049271.10922.rdb fd:11 10922:M 03:08:15.684599 # Start Receiving FullSync Data 3013026751 bytes from master to disk, receiving=2 10922:M 03:08:28.932856 # Finished Receiving Data 3013026751 bytes. 13 sec, receiving=1 10922:M 03:08:29.080173 # MASTER <-> CLONE sync: Flushing old data 10922:M 03:08:29.081160 # MASTER <-> CLONE sync: Loading DB in memory 10922:M 03:08:29.085587 # Delete all data in memory 10922:M 03:08:29.085643 # Start Uploading Data in Memory. receiving=0 10922:M 03:08:29.085684 # startLoading loading_end_time:0 10922:M 03:08:29.088300 # Loading RDB produced by version 7.5.0 10922:M 03:08:29.088347 # RDB age 38 seconds 10922:M 03:08:29.088378 # RDB memory usage when created 3008.56 Mb 10922:M 03:08:29.088414 # db0 keys: 995056, expire keys: 0 10922:M 03:08:34.743264 Done loading RDB, keys loaded: 995056, keys expired: 0. 10922:M 03:08:34.743322 # stopLoading loading_end_time:1744049314 10922:M 03:08:34.743371 # Create Clone Backlog: 16777216 10922:M 03:08:34.743387 # Finished Uploading Data in Memory. keys:995056, 6 sec, receiving=0 10922:M 03:08:34.743398 # MASTER -> CLONE Synchronization Successful.

2. Memory to Disk

• repl-diskless-sync yes
• repl-diskless-load disabled

• 1번 서버 mon.sh: 메모리의 데이터를 바로 2번 서버로 전송(SEND)
------------------------------------------------------------------------------------------------- time ip:port keys cpu memory clients commands input output from to child ------------------------------------------------------------------------------------------------- 08:59:52 1:18504 995056 0.1% 2.9G 2 1 23B 205B 0B 0B SEND(159M) 08:59:53 1:18504 995056 25.3% 2.9G 2 1 23B 210B 0B 225M SEND(396M) 08:59:54 1:18504 995056 23.2% 2.9G 2 1 23B 211B 0B 249M SEND(637M) 08:59:55 1:18504 995056 27.8% 2.9G 2 1 23B 211B 0B 229M SEND(863M) 08:59:56 1:18504 995056 27.2% 2.9G 2 1 23B 211B 0B 239M SEND(1.08G) 08:59:57 1:18504 995056 27.4% 2.9G 2 1 23B 212B 0B 229M SEND(1.30G) 08:59:58 1:18504 995056 27.2% 2.9G 2 1 23B 212B 0B 221M SEND(1.51G) 08:59:59 1:18504 995056 26.4% 2.9G 2 1 23B 212B 0B 215M SEND(1.72G) 09:00:00 1:18504 995056 27.2% 2.9G 2 1 23B 212B 0B 222M SEND(1.94G) 09:00:01 1:18504 995056 27.4% 2.9G 2 1 23B 212B 0B 222M SEND(2.17G) 09:00:02 1:18504 995056 24.8% 2.9G 2 1 23B 212B 0B 247M SEND(2.41G) 09:00:03 1:18504 995056 28.4% 2.9G 2 1 23B 212B 0B 242M SEND(2.64G) 09:00:04 1:18504 995056 25.5% 2.9G 2 1 23B 212B 0B 233M 09:00:05 1:18504 995056 12.3% 2.9G 2 1 25B 206B 0B 100M SUM 2873M (14sec)

• 2번 서버 mon.sh: 데이터 받기(RECV)와 받은 데이터 메모리로 올리기(LOAD)
------------------------------------------------------------------------------------------------- time ip:port keys cpu memory clients commands input output from to child ------------------------------------------------------------------------------------------------- 08:59:53 1:18505 0 21.6% 996.8K 1 1 23B 207B 189M 0B RECV(156M) 08:59:54 1:18505 0 33.7% 996.8K 1 1 23B 213B 240M 0B RECV(389M) 08:59:55 1:18505 0 29.1% 996.8K 1 1 23B 213B 239M 0B RECV(630M) 08:59:56 1:18505 0 30.4% 996.8K 1 1 23B 213B 232M 0B RECV(924M) 08:59:57 1:18505 0 30.7% 997.0K 1 1 23B 213B 237M 0B RECV(1.12G) 08:59:58 1:18505 0 27.3% 997.0K 1 1 23B 214B 221M 0B RECV(1.34G) 08:59:59 1:18505 0 27.0% 997.0K 1 1 23B 214B 215M 0B RECV(1.54G) 09:00:00 1:18505 0 27.4% 997.0K 1 1 23B 214B 222M 0B RECV(1.76G) 09:00:01 1:18505 0 26.6% 997.0K 1 1 23B 214B 225M 0B RECV(1.97G) 09:00:02 1:18505 0 31.7% 997.0K 1 1 23B 214B 243M 0B RECV(2.20G) 09:00:03 1:18505 0 31.7% 997.0K 1 1 23B 214B 248M 0B RECV(2.44G) 09:00:04 1:18505 0 28.6% 997.0K 1 1 23B 214B 232M 0B RECV(2.65G) 09:00:05 1:18505 108044 62.9% 332.9M 1 1 46B 214B 130M 0B LOAD(10%) 09:00:06 1:18505 238250 67.2% 723.3M 1 2 117B 278B 0B 0B LOAD(23%) 09:00:07 1:18505 312357 51.2% 945.5M 1 1 23B 212B 0B 0B LOAD(31%) 09:00:08 1:18505 385771 49.0% 1.1G 1 1 23B 212B 0B 0B LOAD(38%) 09:00:09 1:18505 455722 54.9% 1.3G 1 1 23B 210B 0B 0B LOAD(45%) 09:00:10 1:18505 527751 53.0% 1.6G 1 1 23B 210B 0B 0B LOAD(53%) 09:00:11 1:18505 600473 53.7% 1.8G 1 2 117B 276B 0B 0B LOAD(60%) 09:00:12 1:18505 701591 61.3% 2.1G 1 1 23B 210B 0B 0B LOAD(70%) 09:00:13 1:18505 869197 84.3% 2.6G 1 1 23B 210B 0B 0B LOAD(87%) 09:00:14 1:18505 995056 84.3% 2.9G 2 3 23B 210B 0B 0B SUM 2873M (13sec)

• 1번 서버 LOG
28642:M 2025-04-08 08:59:52.260340 # Starting BGSAVE for SYNC with target: clones sockets 28642:M 2025-04-08 08:59:52.260431 # Master: Send +FULLRESYNC 9fbbb9ed01a1d758e0b7e8f1764ceaf04f97c40b 14 28642:M 2025-04-08 08:59:52.295073 # Background RDB transfer started by pid 28672 28672:C 2025-04-08 08:59:52.295220 # Start saving rdb file 28672:C 2025-04-08 08:59:52.295359 # db0 keys: 995056, expire keys: 0 28672:C 2025-04-08 09:00:04.806455 # RDB: 0 MB of memory used by copy-on-write 28642:M 2025-04-08 09:00:04.806504 rdbPipeReadHandler(): Diskless rdb transfer, done reading from pipe, 1 replicas still up. 28642:M 2025-04-08 09:00:04.908040 # Background RDB transfer terminated with success 28642:M 2025-04-08 09:00:04.908089 # Streamed RDB transfer with clone 127.0.0.1:18505 succeeded (socket). Waiting for CLONECONF ACK from clone to enable streaming 28642:M 2025-04-08 09:00:14.196274 # Clone 127.0.0.1:18505 ONLINE. 28642:M 2025-04-08 09:00:15.335942 # cloneCron: sync_clone_flag: 0

• 2번 서버 LOG
28661:M 2025-04-08 08:59:52.260586 # Received +FULLRESYNC from 127.0.0.1:18504, receiving=1 28661:M 2025-04-08 08:59:52.260644 # Full resync from master: 9fbbb9ed01a1d758e0b7e8f1764ceaf04f97c40b:14 28661:M 2025-04-08 08:59:52.260674 # Wait to receive(Master is saving a rdb file) 28661:M 2025-04-08 08:59:52.260763 # Open the temp file ./data/temp-1744070392.28661.rdb fd:12 28661:M 2025-04-08 08:59:52.323085 # Receiving streamed RDB from master with EOF to disk 28661:M 2025-04-08 09:00:04.779416 # Received successfully. Read bytes:3013026791(2.81G), Read cnt:9133 28661:M 2025-04-08 09:00:04.815734 # MASTER <-> CLONE sync: Flushing old data 28661:M 2025-04-08 09:00:04.815832 # MASTER <-> CLONE sync: Loading DB in memory 28661:M 2025-04-08 09:00:04.815988 # Delete all data in memory 28661:M 2025-04-08 09:00:04.816010 # Start Uploading Data in Memory. receiving=0 28661:M 2025-04-08 09:00:04.816028 # startLoading loading_end_time:0 28661:M 2025-04-08 09:00:04.816056 # Loading RDB produced by version 7.5.0 28661:M 2025-04-08 09:00:04.816081 # RDB age 12 seconds 28661:M 2025-04-08 09:00:04.816097 # RDB memory usage when created 3008.48 Mb 28661:M 2025-04-08 09:00:04.816115 # db0 keys: 995056, expire keys: 0 28661:M 2025-04-08 09:00:14.151148 Done loading RDB, keys loaded: 995056, keys expired: 0. 28661:M 2025-04-08 09:00:14.151218 # stopLoading loading_end_time:1744070414 28661:M 2025-04-08 09:00:14.151488 # Create Clone Backlog: 16777216 28661:M 2025-04-08 09:00:14.151521 # Finished Uploading Data in Memory. keys:995056, 10 sec, receiving=0 28661:M 2025-04-08 09:00:14.151545 # MASTER -> CLONE Synchronization Successful. 28661:M 2025-04-08 09:00:14.334795 # Clone 127.0.0.1:18504 ONLINE. 28661:M 2025-04-08 09:00:15.098342 # cloneCron: sync_clone_flag: 0

3. Memory to Memory: Socket

• repl-diskless-sync yes
• repl-diskless-load on-empty-db

• 1번 서버 mon.sh: 메모리의 데이터를 바로 2번 서버로 전송(SEND)
------------------------------------------------------------------------------------------------- time ip:port keys cpu memory clients commands input output from to child ------------------------------------------------------------------------------------------------- 09:20:39 1:18504 995056 0.1% 2.9G 2 1 23B 205B 0B 0B SEND(0B) 09:20:40 1:18504 995056 0.1% 2.9G 2 1 23B 205B 0B 0B SEND(184M) 09:20:41 1:18504 995056 24.4% 2.9G 2 1 48B 419B 0B 184M SEND(374M) 09:20:42 1:18504 995056 22.3% 2.9G 2 1 24B 211B 0B 191M SEND(575M) 09:20:43 1:18504 995056 23.6% 2.9G 2 1 24B 211B 0B 200M SEND(778M) 09:20:44 1:18504 995056 23.6% 2.9G 2 1 24B 211B 0B 203M SEND(1005M) 09:20:45 1:18504 995056 25.4% 2.9G 2 1 24B 212B 0B 228M SEND(1.24G) 09:20:46 1:18504 995056 27.8% 2.9G 2 1 24B 212B 0B 264M SEND(1.50G) 09:20:47 1:18504 995056 28.0% 2.9G 2 1 24B 212B 0B 262M SEND(1.76G) 09:20:48 1:18504 995056 28.9% 2.9G 2 1 24B 212B 0B 273M SEND(2.03G) 09:20:49 1:18504 995056 29.7% 2.9G 2 1 24B 212B 0B 275M SEND(2.28G) 09:20:50 1:18504 995056 26.1% 2.9G 2 1 24B 212B 0B 257M SEND(2.51G) 09:20:51 1:18504 995056 27.3% 2.9G 2 1 24B 212B 0B 229M SEND(2.77G) 09:20:52 1:18504 995056 25.0% 2.9G 2 3 24B 212B 0B 274M 09:20:53 1:18504 995056 3.0% 2.9G 3 2 93B 206B 0B 32M SUM 2872M (14sec)

• 2번 서버 mon.sh: 데이터 받기는 동시에 메모리에 적용(RECV)
------------------------------------------------------------------------------------------------- time ip:port keys cpu memory clients commands input output from to child ------------------------------------------------------------------------------------------------- 09:20:40 1:18505 44326 23.6% 141.9M 1 1 46B 207B 128M 0B RECV(4%) 09:20:41 1:18505 109429 32.9% 337.1M 1 1 23B 212B 188M 0B RECV(10%) 09:20:42 1:18505 177995 35.3% 542.7M 1 1 23B 212B 198M 0B RECV(17%) 09:20:43 1:18505 247946 35.4% 752.4M 1 1 23B 212B 202M 0B RECV(24%) 09:20:44 1:18505 322746 37.7% 976.7M 1 1 23B 212B 216M 0B RECV(32%) 09:20:45 1:18505 414167 48.4% 1.2G 1 1 23B 212B 264M 0B RECV(41%) 09:20:46 1:18505 504896 49.4% 1.5G 1 1 23B 210B 262M 0B RECV(50%) 09:20:47 1:18505 599088 53.5% 1.8G 1 1 23B 210B 272M 0B RECV(60%) 09:20:48 1:18505 694665 54.1% 2.0G 1 1 23B 210B 276M 0B RECV(69%) 09:20:49 1:18505 787471 48.6% 2.3G 1 1 23B 210B 268M 0B RECV(79%) 09:20:50 1:18505 867811 39.7% 2.5G 1 1 23B 210B 232M 0B RECV(87%) 09:20:51 1:18505 958540 46.8% 2.8G 1 1 23B 210B 262M 0B RECV(96%) 09:20:52 1:18505 995056 23.4% 2.9G 2 2 0B 245B 105M 0B SUM 2873M (13sec)

• 1번 서버 LOG
28642:M 09:20:39.388408 # Starting BGSAVE for SYNC with target: clones sockets 28642:M 09:20:39.388495 # Master: Send +FULLRESYNC 9fbbb9ed01a1d758e0b7e8f1764ceaf04f97c40b 1708 28642:M 09:20:39.424980 # Background RDB transfer started by pid 29749 29749:C 09:20:39.425675 # Start saving rdb file 29749:C 09:20:39.425846 # db0 keys: 995056, expire keys: 0 29749:C 09:20:51.609286 # RDB: 0 MB of memory used by copy-on-write 28642:M 09:20:51.609389 rdbPipeReadHandler(): Diskless rdb transfer, done reading from pipe, 1 replicas still up. 28642:M 09:20:51.737942 # Background RDB transfer terminated with success 28642:M 09:20:51.738006 # Streamed RDB transfer with clone 127.0.0.1:18505 succeeded (socket). Waiting for CLONECONF ACK from clone to enable streaming 28642:M 09:20:51.816017 # Clone 127.0.0.1:18505 ONLINE. 28642:M 09:20:53.443401 # cloneCron: sync_clone_flag: 0

• 2번 서버 LOG
29738:M 09:20:39.388624 # Received +FULLRESYNC from 127.0.0.1:18504, receiving=1 29738:M 09:20:39.388685 # Full resync from master: 9fbbb9ed01a1d758e0b7e8f1764ceaf04f97c40b:1708 29738:M 09:20:39.388729 # Wait to receive(Master is saving a rdb file) 29738:M 09:20:39.452832 # Receiving streamed RDB from master with EOF to parser 29738:M 09:20:39.453038 # MASTER <-> CLONE sync: Flushing old data 29738:M 09:20:39.453077 # MASTER <-> CLONE sync: Loading DB in memory 29738:M 09:20:39.453160 # startLoading loading_end_time:0 29738:M 09:20:39.453217 # Loading RDB produced by version 7.5.0 29738:M 09:20:39.453242 # RDB age 0 seconds 29738:M 09:20:39.453266 # RDB memory usage when created 3008.57 Mb 29738:M 09:20:39.453292 # db0 keys: 995056, expire keys: 0 29738:M 09:20:51.577967 Done loading RDB, keys loaded: 995056, keys expired: 0. 29738:M 09:20:51.578008 # stopLoading loading_end_time:1744071651 29738:M 09:20:51.578052 # Create Clone Backlog: 16777216 29738:M 09:20:51.578066 # Finished Uploading Data in Memory. keys:995056, 12 sec, receiving=0 29738:M 09:20:51.578078 # MASTER -> CLONE Synchronization Successful. 29738:M 09:20:52.441549 # Clone 127.0.0.1:18504 ONLINE. 29738:M 09:20:52.819289 # cloneCron: sync_clone_flag: 0

ent-7.4.8

데이터를 보내는 서버에서는 Diskless 동기화를 지원한다. (바로 전송 가능)
데이터를 받는 서버에서는 Diskless 동기화를 지원하지 않는다. (파일로 받아서 로드(적재))

1. Disk to Disk

• repl-diskless-sync no
• repl-diskless-load disabled

• 1번 서버 mon.sh: RDB 생성과 생성된 RDB 파일 전송(SEND)
실시간 동기화 시작: 마지막 줄에서 'from'이 '1'로 설정되었다(2번 서버 LOAD 완료 후).
-------------------------------------------------------------------------------------------- time ip:port role keys cpu memory clients commands from to child -------------------------------------------------------------------------------------------- 11:09:10 1:18504 master 995056 3.0% 2.9G 2 6 0 1 RDB(0%) 11:09:11 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(0%) 11:09:12 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(4%) 11:09:13 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(8%) 11:09:14 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(13%) 11:09:15 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(17%) 11:09:16 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(22%) 11:09:17 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(26%) 11:09:18 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(31%) 11:09:19 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(35%) 11:09:20 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(40%) 11:09:21 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(44%) 11:09:22 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(49%) 11:09:23 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(53%) 11:09:24 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(57%) 11:09:25 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(61%) 11:09:26 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(65%) 11:09:27 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(70%) 11:09:28 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(74%) 11:09:29 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(74%) 11:09:30 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(79%) 11:09:31 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(83%) 11:09:32 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(87%) 11:09:33 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(92%) 11:09:34 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(96%) 11:09:35 1:18504 master 995056 25.2% 2.9G 2 1 0 1 SEND(0%) 11:09:36 1:18504 master 995056 22.7% 2.9G 2 1 0 1 SEND(13%) 11:09:37 1:18504 master 995056 23.4% 2.9G 2 1 0 1 SEND(24%) 11:09:38 1:18504 master 995056 15.4% 2.9G 2 1 0 1 SEND(35%) 11:09:39 1:18504 master 995056 23.0% 2.9G 2 1 0 1 SEND(46%) 11:09:40 1:18504 master 995056 24.0% 2.9G 2 1 0 1 SEND(57%) 11:09:41 1:18504 master 995056 23.3% 2.9G 2 1 0 1 SEND(69%) 11:09:42 1:18504 master 995056 25.0% 2.9G 2 1 0 1 SEND(79%) 11:09:43 1:18504 master 995056 22.7% 2.9G 2 1 0 1 SEND(90%) ........ 11:09:53 1:18504 master 995056 0.1% 2.9G 3 2 1 1

• 2번 서버 mon.sh: 데이터 받기(RECV)와 받은 데이터 메모리로 올리기(LOAD)
-------------------------------------------------------------------------------------------- time ip:port role keys cpu memory clients commands from to child -------------------------------------------------------------------------------------------- 11:09:34 1:18505 master 0 0.1% 996.6K 1 1 0 0 RECV(0%) 11:09:35 1:18505 master 0 37.4% 996.6K 1 1 0 0 RECV(13%) 11:09:36 1:18505 master 0 45.2% 996.6K 1 1 0 0 RECV(13%) 11:09:37 1:18505 master 0 47.9% 996.6K 1 1 0 0 RECV(24%) 11:09:38 1:18505 master 0 45.4% 996.6K 1 1 0 0 RECV(35%) 11:09:39 1:18505 master 0 43.9% 996.6K 1 1 0 0 RECV(46%) 11:09:40 1:18505 master 0 47.1% 996.6K 1 1 0 0 RECV(57%) 11:09:41 1:18505 master 0 47.1% 996.6K 1 1 0 0 RECV(79%) 11:09:42 1:18505 master 0 45.9% 996.6K 1 1 0 0 RECV(90%) 11:09:43 1:18505 master 692 41.4% 11.1M 1 1 0 0 LOAD(0%) 11:09:44 1:18505 master 182842 86.5% 557.2M 1 2 0 0 LOAD(18%) 11:09:45 1:18505 master 392004 92.2% 1.2G 1 1 0 0 LOAD(39%) 11:09:46 1:18505 master 584543 89.0% 1.7G 1 1 0 0 LOAD(58%) 11:09:47 1:18505 master 762538 85.1% 2.2G 1 1 0 0 LOAD(76%) 11:09:48 1:18505 master 944688 87.8% 2.8G 1 1 0 0 LOAD(94%) 11:09:49 1:18505 master 995056 87.8% 2.9G 2 5 1 0 AOF(0%) 11:09:50 1:18505 master 995056 40.6% 2.9G 2 1 1 0 AOF(0%) 11:09:51 1:18505 master 995056 0.1% 2.9G 2 1 1 0 AOF(4%) 11:09:52 1:18505 master 995056 0.1% 2.9G 3 6 1 1 AOF(8%) 11:09:53 1:18505 master 995056 0.1% 2.9G 3 2 1 1 AOF(13%) 11:09:54 1:18505 master 995056 0.1% 2.9G 3 2 1 1 AOF(17%)

• 1번 서버 RDB 파일 생성 중 process 상태
USER PID LWP NLWP %CPU %MEM VSZ RSS CMD redis 7014 7014 5 10.3 38.1 3588628 3104692 ../src/redis-eserver 127.0.0.1:18504 redis 7057 7057 1 66.2 38.1 3588776 3103816 redis-rdb-bgsave 127.0.0.1:18504

• 2번 서버 AOF 파일 생성 중 process 상태
USER PID LWP NLWP %CPU %MEM VSZ RSS CMD redis 7052 7052 5 17.2 38.1 3588628 3104324 ../src/redis-eserver 127.0.0.1:18505 redis 7093 7093 1 61.0 38.1 3588792 3103852 redis-aof-rewrite 127.0.0.1:18505

• 1번 서버 LOG
7014:M 11:09:10.012912 # Starting BGSAVE for SYNC with target: disk 7014:M 11:09:10.041495 # Background saving started by pid 7057 7014:M 11:09:10.041570 # Master: Send +FULLRESYNC 930365256d43082a351531b324ae6abbad392dd6 0 7057:C 11:09:10.041758 # Start saving rdb file 7057:C 11:09:10.042021 # db0 keys: 995056, expire keys: 0 7057:C 11:09:34.203092 # DB saved on disk 7057:C 11:09:34.236373 # RDB: 0 MB of memory used by copy-on-write 7014:M 11:09:34.367224 # Background saving terminated with success. 24 sec 7014:M 11:09:34.367305 # Start Sending Data 3013026751 bytes to 127.0.0.1:18505 7014:M 11:09:43.709281 # Finished Sending Data. 9 sec 7014:M 11:09:44.146276 # Clone 127.0.0.1:18505 ONLINE. 7014:M 11:09:53.841454 # cloneCron: sync_clone_flag: 0

• 2번 서버 LOG
7052:M 11:09:10.041705 # Received +FULLRESYNC from 127.0.0.1:18504 7052:M 11:09:10.041755 # Wait to receive(Master is saving a rdb file) 7052:M 11:09:10.041871 # Open the temp file ./data/temp-1744078150.7052.rdb fd:11 7052:M 11:09:34.367441 # Start Receiving FullSync Data 3013026751 bytes from master to disk 7052:M 11:09:43.709353 # Finished Receiving Data 3013026751 bytes. 9 sec 7052:M 11:09:43.870304 # Delete all data in memory 7052:M 11:09:43.872440 # Start Uploading Data in Memory. 7052:M 11:09:43.872478 # receiving=0 7052:M 11:09:43.872513 # startLoading loading_end_time:0 7052:M 11:09:43.872904 # Loading RDB produced by version 7.4.8 7052:M 11:09:43.872947 # RDB age 33 seconds 7052:M 11:09:43.872982 # RDB memory usage when created 3008.52 Mb 7052:M 11:09:43.873014 # db0 keys: 995056, expire keys: 0 ...................... 7052:M 11:09:49.176923 Done loading RDB, keys loaded: 995056, keys expired: 0. 7052:M 11:09:49.177004 # stopLoading loading_end_time:1744078189 7052:M 11:09:49.177063 # Finished Uploading Data in Memory. keys:995056, 6 sec 7052:M 11:09:49.306568 # CLONE <-> MASTER Synchronization Successful. ...................... 7052:M 11:09:52.840417 # Clone 127.0.0.1:18504 ONLINE. 7052:M 11:09:53.050414 # cloneCron: sync_clone_flag: 0

2. Memory to Disk

• repl-diskless-sync yes
• repl-diskless-load disabled

• 1번 서버 mon.sh: 메모리의 데이터를 바로 2번 서버로 전송(표시는 RDB)
-------------------------------------------------------------------------------------------- time ip:port role keys cpu memory clients commands from to child -------------------------------------------------------------------------------------------- 12:18:47 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(0%) 12:18:48 1:18504 master 995056 28.2% 2.9G 2 1 0 1 RDB(0%) 12:18:49 1:18504 master 995056 23.3% 2.9G 2 1 0 1 RDB(17%) 12:18:50 1:18504 master 995056 22.7% 2.9G 2 1 0 1 RDB(17%) 12:18:51 1:18504 master 995056 26.7% 2.9G 2 1 0 1 RDB(26%) 12:18:52 1:18504 master 995056 23.9% 2.9G 2 1 0 1 RDB(35%) 12:18:53 1:18504 master 995056 22.9% 2.9G 2 1 0 1 RDB(44%) 12:18:54 1:18504 master 995056 22.4% 2.9G 2 1 0 1 RDB(53%) 12:18:55 1:18504 master 995056 22.7% 2.9G 2 1 0 1 RDB(62%) 12:18:56 1:18504 master 995056 22.9% 2.9G 2 1 0 1 RDB(71%) 12:18:57 1:18504 master 995056 24.0% 2.9G 2 1 0 1 RDB(80%) ........ 12:19:18 1:18504 master 995056 0.1% 2.9G 3 2 1 1

• 2번 서버 mon.sh: 데이터 받기(RECV)와 받은 데이터 메모리로 올리기(LOAD)
-------------------------------------------------------------------------------------------- time ip:port role keys cpu memory clients commands from to child -------------------------------------------------------------------------------------------- 12:18:48 1:18505 master 0 21.0% 996.8K 1 1 0 0 RECV(16kb) 12:18:49 1:18505 master 0 33.3% 996.8K 1 1 0 0 RECV(258mb) 12:18:50 1:18505 master 0 32.1% 996.8K 1 1 0 0 RECV(529mb) 12:18:51 1:18505 master 0 26.8% 996.8K 1 1 0 0 RECV(789mb) 12:18:52 1:18505 master 0 33.9% 996.8K 1 1 0 0 RECV(1gb) 12:18:53 1:18505 master 0 32.6% 996.8K 1 1 0 0 RECV(1gb) 12:18:54 1:18505 master 0 32.8% 996.8K 1 1 0 0 RECV(2gb) 12:18:55 1:18505 master 0 33.3% 996.8K 1 1 0 0 RECV(2gb) 12:18:56 1:18505 master 0 33.2% 996.8K 1 1 0 0 RECV(2gb) 12:18:57 1:18505 master 0 33.0% 996.8K 1 1 0 0 RECV(2gb) 12:18:58 1:18505 master 0 35.3% 996.8K 1 1 0 0 RECV(3gb) 12:18:59 1:18505 master 47788 50.0% 152.3M 1 1 0 0 LOAD(4%) 12:19:00 1:18505 master 123972 50.8% 380.7M 1 2 0 0 LOAD(12%) 12:19:01 1:18505 master 196694 52.2% 598.7M 1 1 0 0 LOAD(19%) 12:19:02 1:18505 master 274957 47.7% 833.4M 1 1 0 0 LOAD(27%) 12:19:03 1:18505 master 347679 52.7% 1.0G 1 1 0 0 LOAD(34%) 12:19:04 1:18505 master 425941 50.0% 1.3G 1 1 0 0 LOAD(42%) 12:19:05 1:18505 master 500048 49.2% 1.5G 1 1 0 0 LOAD(50%) 12:19:06 1:18505 master 576232 51.5% 1.7G 1 2 0 0 LOAD(57%) 12:19:07 1:18505 master 656572 45.0% 1.9G 1 1 0 0 LOAD(65%) 12:19:08 1:18505 master 734835 48.8% 2.2G 1 1 0 0 LOAD(73%) 12:19:09 1:18505 master 808249 53.7% 2.4G 1 1 0 0 LOAD(81%) 12:19:10 1:18505 master 880970 49.0% 2.6G 1 1 0 0 LOAD(88%) 12:19:11 1:18505 master 957155 49.1% 2.8G 1 2 0 0 LOAD(96%) 12:19:12 1:18505 master 995056 49.1% 2.9G 2 1 1 0 ........ 12:19:19 1:18505 master 995056 0.1% 2.9G 3 6 1 1 AOF(26%) 12:19:20 1:18505 master 995056 0.1% 2.9G 3 2 1 1 AOF(31%) 12:19:21 1:18505 master 995056 0.1% 2.9G 3 2 1 1 AOF(35%) 12:19:22 1:18505 master 995056 0.1% 2.9G 3 2 1 1 AOF(40%)

• 1번 서버 LOG
10835:M 12:18:47.331090 # Starting BGSAVE for SYNC with target: clones sockets 10835:M 12:18:47.331181 # Master: Send +FULLRESYNC 98fbc0b4a69026cdfee401ced6c3403891703f08 14 10835:M 12:18:47.365555 # Background RDB transfer started by pid 10876 10876:C 12:18:47.365768 # Start saving rdb file 10876:C 12:18:47.366632 # db0 keys: 995056, expire keys: 0 10876:C 12:18:58.536415 # RDB: 0 MB of memory used by copy-on-write 10835:M 12:18:58.536505 Diskless rdb transfer, done reading from pipe, 1 replicas still up. 10835:M 12:18:58.676936 # Background RDB transfer terminated with success 10835:M 12:18:58.676980 # Streamed RDB transfer with clone 127.0.0.1:18505 succeeded (socket). Waiting for CLONECONF ACK from clone to enable streaming 10835:M 12:19:12.319511 # Clone 127.0.0.1:18505 ONLINE. 10835:M 12:19:19.489820 # cloneCron: sync_clone_flag: 0

• 2번 서버 LOG
10865:M 12:18:47.331372 # Received +FULLRESYNC from 127.0.0.1:18504 10865:M 12:18:47.331408 # Wait to receive(Master is saving a rdb file) 10865:M 12:18:47.331474 # Open the temp file ./data/temp-1744082327.10865.rdb fd:12 10865:M 12:18:47.393937 # Receiving streamed RDB from master with EOF to disk 10865:M 12:18:58.545990 # Delete all data in memory 10865:M 12:18:58.546068 # Start Uploading Data in Memory. 10865:M 12:18:58.546082 # receiving=0 10865:M 12:18:58.546097 # startLoading loading_end_time:0 10865:M 12:18:58.547179 # Loading RDB produced by version 7.4.8 10865:M 12:18:58.547212 # RDB age 11 seconds 10865:M 12:18:58.547233 # RDB memory usage when created 3008.48 Mb 10865:M 12:18:58.547254 # db0 keys: 995056, expire keys: 0 10865:M 12:19:11.815226 Done loading RDB, keys loaded: 995056, keys expired: 0. 10865:M 12:19:11.815290 # stopLoading loading_end_time:1744082351 10865:M 12:19:11.815380 # Finished Uploading Data in Memory. keys:995056, 13 sec 10865:M 12:19:11.984287 # CLONE <-> MASTER Synchronization Successful. 10865:M 12:19:18.434237 # Clone 127.0.0.1:18504 ONLINE. 10865:M 12:19:19.336305 # cloneCron: sync_clone_flag: 0

3. Memory to Memory

• repl-diskless-sync yes
• repl-diskless-load on-empty-db

• 1번 서버 mon.sh: 메모리의 데이터를 바로 2번 서버로 전송(표시는 RDB)
-------------------------------------------------------------------------------------------- time ip:port role keys cpu memory clients commands from to child -------------------------------------------------------------------------------------------- 12:40:31 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(0%) 12:40:32 1:18504 master 995056 28.6% 2.9G 2 1 0 1 RDB(0%) 12:40:33 1:18504 master 995056 24.8% 2.9G 2 1 0 1 RDB(8%) 12:40:34 1:18504 master 995056 24.7% 2.9G 2 1 0 1 RDB(18%) 12:40:35 1:18504 master 995056 25.0% 2.9G 2 1 0 1 RDB(27%) 12:40:36 1:18504 master 995056 24.5% 2.9G 2 1 0 1 RDB(36%) 12:40:37 1:18504 master 995056 27.5% 2.9G 2 1 0 1 RDB(46%) 12:40:38 1:18504 master 995056 24.4% 2.9G 2 1 0 1 RDB(55%) 12:40:39 1:18504 master 995056 25.9% 2.9G 2 1 0 1 RDB(64%) 12:40:40 1:18504 master 995056 28.5% 2.9G 2 1 0 1 RDB(74%) 12:40:41 1:18504 master 995056 27.4% 2.9G 2 1 0 1 RDB(83%) ........ 12:40:53 1:18504 master 995056 0.1% 2.9G 3 2 1 1

• 2번 서버 mon.sh: 데이터 받기(RECV)와 받은 데이터 메모리로 올리기(LOAD)
-------------------------------------------------------------------------------------------- time ip:port role keys cpu memory clients commands from to child -------------------------------------------------------------------------------------------- 12:40:31 1:18505 master 0 12.8% 996.8K 1 1 0 0 RECV(16kb) 12:40:32 1:18505 master 0 31.9% 996.8K 1 1 0 0 RECV(263mb) 12:40:33 1:18505 master 0 33.5% 996.8K 1 1 0 0 RECV(535mb) 12:40:34 1:18505 master 0 30.8% 996.8K 1 1 0 0 RECV(807mb) 12:40:35 1:18505 master 0 30.8% 996.8K 1 1 0 0 RECV(1gb) 12:40:36 1:18505 master 0 32.7% 996.8K 1 1 0 0 RECV(1gb) 12:40:37 1:18505 master 0 35.3% 996.8K 1 1 0 0 RECV(2gb) 12:40:38 1:18505 master 0 34.4% 996.8K 1 1 0 0 RECV(2gb) 12:40:39 1:18505 master 0 35.7% 996.8K 1 1 0 0 RECV(2gb) 12:40:40 1:18505 master 0 31.8% 996.8K 1 1 0 0 RECV(2gb) 12:40:41 1:18505 master 0 33.4% 996.8K 1 1 0 0 RECV(3gb) 12:40:42 1:18505 master 193231 90.8% 588.4M 1 2 0 0 LOAD(19%) 12:40:43 1:18505 master 432866 100% 1.3G 1 1 0 0 LOAD(43%) 12:40:44 1:18505 master 515976 45.7% 1.5G 1 1 0 0 LOAD(51%) 12:40:45 1:18505 master 588699 52.8% 1.7G 1 1 0 0 LOAD(59%) 12:40:46 1:18505 master 661421 52.0% 1.9G 1 1 0 0 LOAD(66%) 12:40:47 1:18505 master 736220 48.0% 2.2G 1 1 0 0 LOAD(73%) 12:40:48 1:18505 master 838723 63.1% 2.5G 1 2 0 0 LOAD(84%) 12:40:49 1:18505 master 993170 80.1% 2.9G 1 1 0 0 LOAD(99%) 12:40:50 1:18505 master 995056 19.0% 2.9G 2 2 1 0 12:40:51 1:18505 master 995056 0.1% 2.9G 2 2 1 0 12:40:52 1:18505 master 995056 0.1% 2.9G 2 1 1 0 12:40:53 1:18505 master 995056 0.1% 2.9G 3 6 1 1 AOF(8%) 12:40:54 1:18505 master 995056 0.1% 2.9G 3 2 1 1 AOF(13%)

• 1번 서버 LOG
11946:M 12:40:31.222622 # Starting BGSAVE for SYNC with target: clones sockets 11946:M 12:40:31.222720 # Master: Send +FULLRESYNC ac50368d81c9ddec0b33ffca7bed451519652544 14 11946:M 12:40:31.255104 # Background RDB transfer started by pid 11982 11982:C 12:40:31.255256 # Start saving rdb file 11982:C 12:40:31.255386 # db0 keys: 995056, expire keys: 0 11982:C 12:40:42.059845 # RDB: 0 MB of memory used by copy-on-write 11946:M 12:40:42.059899 Diskless rdb transfer, done reading from pipe, 1 replicas still up. 11946:M 12:40:42.167213 # Background RDB transfer terminated with success 11946:M 12:40:42.167302 # Streamed RDB transfer with clone 127.0.0.1:18505 succeeded (socket). Waiting for CLONECONF ACK from clone to enable streaming 11946:M 12:40:50.894528 # Clone 127.0.0.1:18505 ONLINE. 11946:M 12:40:54.305011 # cloneCron: sync_clone_flag: 0

• 2번 서버 LOG
11972:M 12:40:31.222874 # Received +FULLRESYNC from 127.0.0.1:18504 11972:M 12:40:31.222905 # Wait to receive(Master is saving a rdb file) 11972:M 12:40:31.222998 # Open the temp file ./data/temp-1744083631.11972.rdb fd:12 11972:M 12:40:31.277213 # Receiving streamed RDB from master with EOF to disk 11972:M 12:40:42.067147 # Delete all data in memory 11972:M 12:40:42.067244 # Start Uploading Data in Memory. 11972:M 12:40:42.067278 # receiving=0 11972:M 12:40:42.067301 # startLoading loading_end_time:0 11972:M 12:40:42.067342 # Loading RDB produced by version 7.4.8 11972:M 12:40:42.067364 # RDB age 11 seconds 11972:M 12:40:42.067389 # RDB memory usage when created 3008.48 Mb 11972:M 12:40:42.067415 # db0 keys: 995056, expire keys: 0 11972:M 12:40:49.911183 Done loading RDB, keys loaded: 995056, keys expired: 0. 11972:M 12:40:49.911235 # stopLoading loading_end_time:1744083649 11972:M 12:40:49.911321 # Finished Uploading Data in Memory. keys:995056, 8 sec 11972:M 12:40:50.062437 # CLONE <-> MASTER Synchronization Successful. 11972:M 12:40:53.302918 # Clone 127.0.0.1:18504 ONLINE. 11972:M 12:40:53.903054 # cloneCron: sync_clone_flag: 0

ent-7.4.8 -> ent-7.5.0 전체 데이터 동기화: 성공

◼️ 1번 서버(ent748:18504) -> 2번 서버(ent750:18505): 전체 데이터 동기화 테스트 -> 성공

◼️ 1번 서버(ent748:18504): 기본 설정으로 디스크를 사용한 동기화.
• repl-diskless-sync no
• repl-diskless-load disabled

◼️ 2번 서버(ent750:18505): 디스크를 사용하지 않는 동기화 설정(Memory(socket))
• repl-diskless-sync yes
• repl-diskless-load on-empty-db

◼️ 1번 서버(ent748:18504): mon.sh
-------------------------------------------------------------------------------------------- time ip:port role keys cpu memory clients commands from to child -------------------------------------------------------------------------------------------- 15:40:04 1:18504 master 995056 0.1% 2.9G 1 1 0 0 15:40:05 1:18504 master 995056 3.5% 2.9G 2 6 0 1 RDB(0%) 15:40:06 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(0%) 15:40:07 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(4%) 15:40:08 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(8%) 15:40:09 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(13%) 15:40:10 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(17%) 15:40:11 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(22%) 15:40:12 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(26%) 15:40:13 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(31%) 15:40:14 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(35%) 15:40:15 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(40%) 15:40:16 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(44%) 15:40:17 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(49%) 15:40:18 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(53%) 15:40:19 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(57%) 15:40:20 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(62%) 15:40:21 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(66%) 15:40:22 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(71%) 15:40:23 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(75%) 15:40:24 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(80%) 15:40:25 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(84%) 15:40:26 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(89%) 15:40:27 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(93%) 15:40:28 1:18504 master 995056 0.1% 2.9G 2 1 0 1 RDB(98%) 15:40:29 1:18504 master 995056 27.4% 2.9G 2 1 0 1 SEND(0%) 15:40:30 1:18504 master 995056 32.7% 2.9G 2 1 0 1 SEND(23%) 15:40:31 1:18504 master 995056 32.0% 2.9G 2 1 0 1 SEND(47%) 15:40:32 1:18504 master 995056 31.3% 2.9G 2 1 0 1 SEND(70%) 15:40:33 1:18504 master 995056 31.9% 2.9G 3 2 1 1

◼️ 2번 서버(ent750:18505): mon.sh
------------------------------------------------------------------------------------------------- time ip:port keys cpu memory clients commands input output from to child ------------------------------------------------------------------------------------------------- 15:40:28 1:18505 0 0.1% 997.1K 1 1 23B 207B 1B 0B 15:40:29 1:18505 198772 84.8% 605.0M 1 1 46B 207B 574M 0B RECV(19%) 15:40:30 1:18505 432173 100% 1.3G 1 1 23B 212B 674M 0B RECV(43%) 15:40:31 1:18505 662112 100% 1.9G 1 1 23B 209B 664M 0B RECV(66%) 15:40:32 1:18505 890667 100% 2.6G 1 1 23B 209B 660M 0B RECV(89%) 15:40:33 1:18505 995056 49.0% 2.9G 2 3 0B 209B 301M 0B 15:40:34 1:18505 995056 0.2% 2.9G 3 6 387B 296B 0B 0B AOF(4%) 15:40:35 1:18505 995056 0.1% 2.9G 3 3 58B 244B 14B 0B AOF(9%) ........ 15:40:55 1:18505 995056 0.1% 2.9G 3 3 59B 244B 14B 0B AOF(93%) 15:40:56 1:18505 995056 0.3% 2.9G 3 2 59B 244B 0B 0B

• 1번 서버 LOG
21233:M 15:40:05.243499 # Starting BGSAVE for SYNC with target: disk 21233:M 15:40:05.276793 # Background saving started by pid 21261 21233:M 15:40:05.276862 # Master: Send +FULLRESYNC ff6260ffdcde98d8635c258c6f24ae75a4f82880 0 21261:C 15:40:05.277048 # Start saving rdb file 21261:C 15:40:05.277224 # db0 keys: 995056, expire keys: 0 21261:C 15:40:28.400574 # DB saved on disk 21261:C 15:40:28.422850 # RDB: 0 MB of memory used by copy-on-write 21233:M 15:40:28.556551 # Background saving terminated with success. 23 sec 21233:M 15:40:28.556637 # Start Sending Data 3013026751 bytes to 127.0.0.1:18505 21233:M 15:40:32.852619 # Finished Sending Data. 4 sec 21233:M 15:40:33.018837 # Clone 127.0.0.1:18505 ONLINE. 21233:M 15:40:34.525762 # cloneCron: sync_clone_flag: 0

• 2번 서버 LOG
21256:M 15:40:05.276972 # Received +FULLRESYNC from 127.0.0.1:18504, receiving=1 21256:M 15:40:05.277007 # Full resync from master: ff6260ffdcde98d8635c258c6f24ae75a4f82880:0 21256:M 15:40:05.277024 # Wait to receive(Master is saving a rdb file) 21256:M 15:40:28.556822 # Start Receiving FullSync Data 3013026751 bytes from master to parser, receiving=2 21256:M 15:40:28.556891 # MASTER <-> CLONE sync: Flushing old data 21256:M 15:40:28.556958 # MASTER <-> CLONE sync: Loading DB in memory 21256:M 15:40:28.557016 # startLoading loading_end_time:0 21256:M 15:40:28.557085 # Loading RDB produced by version 7.4.8 21256:M 15:40:28.557143 # RDB age 23 seconds 21256:M 15:40:28.557190 # RDB memory usage when created 3008.52 Mb 21256:M 15:40:28.557245 # db0 keys: 995056, expire keys: 0 21256:M 15:40:32.863821 Done loading RDB, keys loaded: 995056, keys expired: 0. 21256:M 15:40:32.863861 # stopLoading loading_end_time:1744094432 21256:M 15:40:32.864201 # Finished Uploading Data in Memory. keys:995056, 4 sec, receiving=0 21256:M 15:40:32.864216 # MASTER -> CLONE Synchronization Successful. 21256:M 15:40:33.524406 # Clone 127.0.0.1:18504 ONLINE. 21256:M 15:40:34.200788 # cloneCron: sync_clone_flag: 0

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