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--- mongodb [2025/12/13 17:21] – created reddy
+++ mongodb [2026/11/05 15:14] (current) – reddy
@@ Line 11: / Line 11: @@
 python3 -m pip install mtools psutil pymongo  # Thomas Rucksteiss' mtools
 # mlaunch --init --replicaset --nodes 1 --sharded 2 --port 28000
 # mongosh --port 28000
 </code>
+====== Key-file login ======
+<code bash>
+mongo -u __system -p "$(tr -d '\011-\015\040' < path-to-keyfile)" --authenticationDatabase local
+</code>
+====== MongoSH JSON ======
+To increase the levels of JSON nesting to display (from the default of 6), run the following:
+<code javascript>
+config.set("inspectDepth", Infinity)
+</code>
+====== Tuning for writes ======
+<code>
+db.adminCommand({
+  setParameter: 1,
+  wiredTigerEngineRuntimeConfig: "eviction_dirty_target=2,eviction_dirty_trigger=30,eviction_updates_target=2,eviction_updates_trigger=30,eviction=(threads_min=8,threads_max=8)"
+})
+</code>
+Also consider increasing:
+https://www.mongodb.com/docs/manual/reference/configuration-options/#mongodb-setting-storage.journal.commitIntervalMs