MongoDB Sharded Collection Data Distribution and Balancer Status

Shows data and document distribution per shard and the balancer state. Finds unbalanced shards and hot shard issues.

#sharding#chunks#balancer

mongodb · javascript

sh.status();                       // genel durum
sh.isBalancerRunning();
sh.getBalancerState();

// Belirli koleksiyon için shard dağılımı:
db.getSiblingDB("mydb").orders.getShardDistribution();

Operational Notes & Remediation Guidance

Verify that the shard balancer is running and chunks are evenly distributed across all shards.

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: 4.4).
Exercise caution with mutating actions (e.g., terminating sessions or dropping indexes) referenced in the notes section.

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