Limits MongoDB memory usage in Linux

Source: Internet
Author: User

Under multiple instances:

You can bind a cpu to prevent mutual interference between multiple instances.

Mongodb memory can also be restricted to the master to prevent all memory occupied by one instance.

Ulimit-s 4096 & ulimit-m 31457280 & sudo-u mongodb numactl -- cpunodebind = 0 -- localalloc/opt/soft/mongodb-2.2.0/bin/mongod -- fork -- master -- oplogSize 10240 -- port 27001 -- dbpath/data/mongodb/db27001/-- logpath/data/logs/mongodb/mongodb27001.log-logappend -- nohttpinterface -- directoryperdb

Ulimit-s sets the stack size.

Ulimit-m sets the memory size used by the process.

Numactl -- cpunodebind = 0 bind the process to the first cpu.

In this way, the cpu memory is free of interference.

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