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  1. Core Server
  2. SERVER-72292

Regex bug in dropDatabase in Sharded cluster

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    • Icon: Bug Bug
    • Resolution: Fixed
    • Icon: Major - P3 Major - P3
    • 6.3.0-rc0
    • None
    • Sharding
    • None
    • Sharding EMEA
    • Fully Compatible
    • ALL
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      Launch a sharded cluster with the latest master branch code. 
      Run following 
      > use db[]
      switched to db db[]

      > db.runCommand({dropDatabase: 1, writeConcern: {w: 'majority' }}) MongoServerError: Regular expression is invalid: missing terminating ] for character class

       

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      Launch a sharded cluster with the latest master branch code.  Run following  > use db[] switched to db db[] > db.runCommand({dropDatabase: 1, writeConcern: {w: 'majority' }}) MongoServerError: Regular expression is invalid: missing terminating ] for character class  
    • Sharding EMEA 2022-12-26

    Description

      We found in recent server build, the `dropDatabase` command failed with confusing errors

      Enterprise [direct: mongos] db[]>  db.runCommand({dropDatabase: 1, writeConcern: {w: 'majority' }})
      MongoServerError: Regular expression is invalid: missing terminating ] for character class 

      After a discussion with arun.banala@mongodb.com , we found the problem was introduced in this commit https://github.com/mongodb/mongo/commit/fd2dd311397aa3671e69ae4e4d98056e8006620f

      In the commit, it seems the special characters inside the database name weren't escaped when constructing a regex to match the other databases. 

      Please prioritize the fix for this issue otherwise we will not be able to drop the database with special characters in a sharding cluster. Thx. 

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            pol.pinol@mongodb.com Pol Pinol
            huan.li@mongodb.com Huan Li
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