- Troubleshooting
- Solutions to Failed Check Items
- Database Parameters
- Checking Whether the Source Database Binlog Is Enabled
- Checking Whether the Source Database Binlog Is Row-Based
- Checking Whether the expire_logs_days Value in the Source Database Is Correct
- Checking Whether the Source and Destination Database Character Sets Are Consistent
- Checking Whether the Source Database server_id Meets the Incremental Migration Requirements
- Checking Whether the Source and Destination Database Table Names Are Consistent in Case Sensitivity
- Checking Whether the Source Database Contains Object Names with Non-ASCII Characters
- Checking Whether the time_zone Values of the Source and Destination Databases Are the Same
- Checking Whether the collation_server Values of the Source and Destination Databases Are the Same
- Checking Whether the SERVER_UUID Values of the Source and Destination Databases Are the Same
- Checking Whether the SERVER_ID Values of the Source and Destination Databases Are Different
- Checking Whether the Source Database Contains Invalid sql_mode Values
- Checking Whether the sql_mode Values of the Source and Destination Databases Are the Same
- Checking Whether the sql_mode Value in the Destination Database Is Not no_engine
- Checking Whether the innodb_strict_mode Values of the Source and Destination Databases Are the Same
- Checking Whether the max_wal_senders Value of the Source Database Is Correctly Configured
- Checking Whether the WAL_LEVEL Value in the Source Database Is Correct
- Checking Whether the MAX_REPLICATION_SLOTS Value in the Source Database Is Correct
- Checking Whether the Source Database Is on Standby
- Checking Whether the log_slave_updates Value in the Source Database Is Correct
- Checking Whether the BLOCK_SIZE Value of the Source Database Is the Same as That of the Destination Database
- Checking Whether the binlog_row_image Value is FULL
- Checking Whether the Transaction Isolation Levels are Consistent
- Checking Whether the lc_monetary Values of the Source and Destination Databases Are the Same
- Checking Whether the Source Database Contains Trigger Names with Non-ASCII Characters
- Checking Whether the Source Database Collections Contain More Than 10 Indexes
- Checking Whether log_bin_trust_function_creators Is Set to On in Both the Source and Destination Databases
- Checking Whether log_bin_trust_function_creators Is Set to On in the Destination Database
- Checking Whether the max_allowed_packet Value of the Destination Database Is too Small
- Checking Whether the Source Database Character Set Is Supported
- Checking Whether the Databases and Tables Exist
- Checking Whether session_replication_role of the Destination Database Is correctly Set
- Checking Whether the MongoDB Instance Type Matches the Migration Mode
- Checking the Physical Standby Database
- Checking the Synchronization Objects
- Checking Whether the Values of group_concat_max_len Are Consistent
- Checking Whether the Character Sets Are Compatible
- Checking Replication Attribute of Primary Key Columns
- Checking Whether the Source and Destination Database Character Sets Are Consistent
- Oracle Account Check in the Source Database
- Whether the Selected Objects Exist in the Destination Database
- Whether the Selected Table Contains Delay Constraints
- Whether the Source Database Tables Contain Primary Keys
- Whether There Are Composite Hash Indexes in the Source Collection
- Whether There Are Composite Hash Shard Keys in the Source Collection
- Whether the Source Table Structure Contains Newline Characters
- Whether There Are Tables Containing Fields of the bytea or text Type in the Synchronization Object
- Whether the max_allowed_packet Value of the Source Database Is Too Small
- block_encryption_mode Consistency Check
- Character Type and Sorting Rule Check in the Destination Database
- Source Encrypted Table Check
- Change History
Whether There Are Composite Hash Indexes in the Source Collection
Migration from MongoDB to DDS
Check Item | Whether there are composite hash indexes in the source collection |
|---|---|
Description | There are collections containing composite hash indexes in the source database. |
Failure Cause and Handling Suggestion | Failure cause: The selected collections contain composite hash indexes. Handling suggestion: Deselect the preceding collections or create non-composite hash indexes in the source database. |
Parent topic: Database Parameters
- Migration from MongoDB to DDS