"MongoDB" chunk too big to move solution

When the amount of data in some blocks is particularly large, when a large block is formed, the balancer cannot split the data block and cannot move the block. With the MONGDB 3.2 version, the solution is as follows:

1. First Close balancer

Sh.stopbalancer ()

2. Query large blocks

Use Configdb.chunks.find ({jumbo:true})

3. Splitting a large block

Sh.splitat ("Db.collection", {shardkye: "Split Critical Value"})

4. Manual nudge block (optional step)

Sh.movechunk ("Db.collection", {shardkey: "Shardkey Block"}, "target Shard ID to be moved");

5. Restart Balancer

Sh.startbalancer ()

This article is from the architect's path blog, so be sure to keep this source http://lizhuquan0769.blog.51cto.com/2591147/1767568

"MongoDB" chunk too big to move solution