MongoDB Transaction Stats and Write Conflicts

Shows open and aborted transaction counts. Reveals long transaction and conflict problems.

#transactions#serverStatus#write-conflict

mongodb · javascript

const s = db.serverStatus();
({
  transactions: s.transactions,
  global_lock: s.globalLock.currentQueue,
  wt_concurrent: s.wiredTiger.concurrentTransactions
});

Operational Notes & Remediation Guidance

High write conflicts in WiredTiger indicate document contention from concurrent writes to the same document or index key.

Production Safety & Execution Standards

This script is designed for read-only diagnostics; it does not alter schema or modify data directly.
Prior to executing on production systems under high load, verify the target database version (Min. Version: 4.0).
Exercise caution with mutating actions (e.g., terminating sessions or dropping indexes) referenced in the notes section.

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