What should I do if I want to retrieve a specific ledger number again? (Version: v20.2.0)

[taiki94]

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I was synchronizing the old version (v20.0.2) of Stellar-core until the day before yesterday, but because the protocol version was old, synchronization stopped at number 50457424.

Therefore, I made a new version (v20.2.0) and started synchronization on the same disk, but the block hash of number 50457424 seems to be different from what I expected, so I can't synchronize.

I have a question!

How can I synchronize again using the same disk in this situation?
I think I need to take the number 50457424 again and overwrite it in the database, but I don't know how.

I would be happy if you could let me know

stellar-core logs

$ stellar-core run --conf /opt/stellar/core/etc/stellar-core.cfg

2024-02-22T03:12:42.504 [default INFO] Config from /opt/stellar/core/etc/stellar-core.cfg
2024-02-22T03:12:42.505 [default INFO] Generated QUORUM_SET: {
   "t" : 5,
   "v" : [
      {
         "t" : 2,
         "v" : [
            "Blockdaemon_Validator_1",
            "Blockdaemon_Validator_2",
            "Blockdaemon_Validator_3"
         ]
      },
      {
         "t" : 2,
         "v" : [ "sdf_3", "sdf_1", "sdf_2" ]
      },
      {
         "t" : 2,
         "v" : [ "coinqvest_finland", "coinqvest_hong_kong", "coinqvest_germany" ]
      },
      {
         "t" : 2,
         "v" : [ "satoshipay_iowa", "satoshipay_singapore", "satoshipay_frankfurt" ]
      },
      {
         "t" : 2,
         "v" : [ "FT_SCV_1", "FT_SCV_3", "FT_SCV_2" ]
      },
      {
         "t" : 3,
         "v" : [
            "lobstr_5_australia",
            "lobstr_4_asia",
            "lobstr_1_europe",
            "lobstr_2_europe",
            "lobstr_3_north_america"
         ]
      },
      {
         "t" : 2,
         "v" : [ "hercules", "lyra", "bootes" ]
      }
   ]
}

2024-02-22T03:12:42.505 [default INFO] Assigning calculated value of 2 to FAILURE_SAFETY
2024-02-22T03:12:42.505 GA24L [default INFO] Starting stellar-core v20.2.0
2024-02-22T03:12:42.507 GA24L [Database INFO] Connecting to: postgresql://dbname=core host=localhost user=stellar password=********
2024-02-22T03:12:42.529 GA24L [SCP INFO] LocalNode::LocalNode@GA24L qSet: b4cccf
2024-02-22T03:12:42.531 GA24L [Database INFO] DB schema is in current version
2024-02-22T03:12:42.533 GA24L [default INFO] Listening on 0.0.0.0:11626 for HTTP requests
2024-02-22T03:12:42.533 GA24L [default INFO] Connection effective settings:
2024-02-22T03:12:42.533 GA24L [default INFO] TARGET_PEER_CONNECTIONS: 8
2024-02-22T03:12:42.533 GA24L [default INFO] MAX_ADDITIONAL_PEER_CONNECTIONS: 64
2024-02-22T03:12:42.533 GA24L [default INFO] MAX_PENDING_CONNECTIONS: 500
2024-02-22T03:12:42.533 GA24L [default INFO] MAX_OUTBOUND_PENDING_CONNECTIONS: 56
2024-02-22T03:12:42.533 GA24L [default INFO] MAX_INBOUND_PENDING_CONNECTIONS: 444
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'Blockdaemon_Validator_1' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'Blockdaemon_Validator_2' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'Blockdaemon_Validator_3' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'FT_SCV_1' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'FT_SCV_2' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'FT_SCV_3' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'bootes' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'coinqvest_finland' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'coinqvest_germany' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'coinqvest_hong_kong' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'hercules' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'lobstr_1_europe' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'lobstr_2_europe' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'lobstr_3_north_america' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'lobstr_4_asia' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'lobstr_5_australia' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'lyra' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'satoshipay_frankfurt' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'satoshipay_iowa' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'satoshipay_singapore' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'sdf_1' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'sdf_2' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History INFO] Archive 'sdf_3' has 'get' command only, will not be written
2024-02-22T03:12:42.533 GA24L [History WARNING] No writable archives configured, history will not be written.
2024-02-22T03:12:42.534 GA24L [Ledger INFO] Last closed ledger (LCL) hash is 00bc2e385db22bf847308c068ab6e08bf04d06d3c315a5a1c8303d831bf0dd3b
2024-02-22T03:12:42.535 GA24L [Ledger INFO] Loaded LCL header from database: [seq=50457424, hash=00bc2e]
2024-02-22T03:12:42.536 GA24L [Ledger INFO] Starting up application
2024-02-22T03:12:42.536 GA24L [Ledger INFO] Last closed ledger (LCL) hash is 00bc2e385db22bf847308c068ab6e08bf04d06d3c315a5a1c8303d831bf0dd3b
2024-02-22T03:12:42.536 GA24L [Ledger INFO] Loaded LCL header from database: [seq=50457424, hash=00bc2e]
2024-02-22T03:12:42.537 GA24L [Ledger ERROR] 28 buckets are missing from bucket directory 'buckets'
current exception: std::runtime_error("Bucket directory is corrupt")
Cannot provide readable stack trace. Use ParseDump.py to translate stack.
stellar-core() [0x87652a]
stellar-core() [0x78588e]
/lib/x86_64-linux-gnu/libc++abi.so.1(+0x25973) [0x7f9adb0f5973]
/lib/x86_64-linux-gnu/libc++abi.so.1(+0x28786) [0x7f9adb0f8786]
/lib/x86_64-linux-gnu/libc++abi.so.1(+0x2870d) [0x7f9adb0f870d]
stellar-core() [0x63d60e]
stellar-core() [0x6bdac3]
stellar-core() [0x6c885c]
stellar-core() [0x72d609]
stellar-core() [0x6f3bee]
stellar-core() [0x716543]
stellar-core() [0x71e34e]
stellar-core() [0x7856ff]
/lib/x86_64-linux-gnu/libc.so.6(+0x29d90) [0x7f9adadc2d90]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x80) [0x7f9adadc2e40]
stellar-core() [0x42ac9e]
Aborted (core dumped)