- com.mongodb.mongobulkwriteexception: bulk write operation error on server 172.17.134.159:3717. write errors: [bulkwriteerror{index=0, code=11000, message='e11000 duplicate key error collection: imlaw_analyst.qtf_test_question index: _id_ dup key: { : objectid('65d41c36f57700003b004d21') }', details={ }}]. 2024-02-20 11:43:55 [analysisstatistics.analysisstatisticslog-53] at com.mongodb.connection.bulkwritebatchcombiner.geterror(bulkwritebatchcombiner.java:176)
The error message you're encountering is from MongoDB and indicates a "Duplicate Key Error." Specifically, it's related to the `_id` field in the `imlaw_analyst.qtf_test_question` collection. In MongoDB, each document within a collection must have a unique `_id` field by default. The error code `11000` corresponds to "E11000 duplicate key error" which means that while attempting a bulk write operation (insertion or update), there was an attempt to insert a document with an `_id` value (`ObjectId('65d41c36f57700003b004d21')`) that already exists in the specified collection. To resolve this issue: 1. If you're inserting: Make sure your data source doesn't contain duplicates for `_id`. If the `_id` is auto-generated (like ObjectId), ensure that new documents are being correctly created with unique IDs. 2. If you're updating: Check your update query to ensure it isn't accidentally trying to insert a new document with the same `_id`. 3. Check Indexes: Verify that the unique index on `_id` is as intended and not conflicting with your operations. 4. Handle Duplicates: In situations where duplicates may occur, catch this exception in your application logic and handle it accordingly – perhaps by ignoring, updating existing records, or generating a new unique ID before re-attempting the insertion. Here's a snippet of how you might handle this in Java: ```java try { // Your bulk write operation here } catch (MongoBulkWriteException e) { if (e.getWriteErrors().get(0).getCode() == 11000) { // Handle duplicate _id situation } else { throw e; } } ``` Remember that managing uniqueness of `_id` is critical to maintain data integrity in MongoDB collections. [2024-02-20 11:59:10 | AI写代码神器 | 405点数解答]
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