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  1. Core Server
  2. SERVER-68359

Prevent TTLMonitor from processing index if expireAfterSeconds is NaN

    • Type: Icon: Bug Bug
    • Resolution: Fixed
    • Priority: Icon: Major - P3 Major - P3
    • 4.2.23, 4.4.16
    • Affects Version/s: None
    • Component/s: None
    • Labels:
      None
    • Fully Compatible
    • ALL
    • v6.0, v5.0, v4.4, v4.2
    • Execution Team 2022-08-08

      The TTLMonitor is responsible for removing expired documents from a collection with a TTL index. The expireAfterSeconds option is a numerical value that is used to calculate the expiration time for removing documents.

      In 5.0 (see SERVER-56676), the TTL Monitor was updated to handle values that fall outside the long long range. However, because BSONElement::safeNumberLong() returns 0 for NaN values, SERVER-56676 sets the TTL expiration so that documents are expired immediately.

      In versions before 5.0, the handling of NaN values for the expireAfterSeconds field is platform-dependent.

            Assignee:
            benety.goh@mongodb.com Benety Goh
            Reporter:
            benety.goh@mongodb.com Benety Goh
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              Created:
              Updated:
              Resolved: