Updated on 2025-07-21 GMT+08:00

Full Migration Error: GC overhead limit exceeded

Scenarios

During real-time migration from MongoDB to DDS, an error is reported during full migration. The log information is as follows: service DATAMOVE failed, cause by: GC overhead limit exceeded.

Possible Causes

  • The size of a single data record in the source database is too large.
  • The replication instance specifications are too small.

Solution

  1. Check whether the task is normal.

    • If the task is normal, this error is recorded in the log and no further action is required.
    • If the task is abnormal, go to 2.

  2. In the upper right corner of the console, choose and contact customer service.