[MongoDB] - 对于"OperationFailed: Sort operation used more than the maximum 33554432 bytes of RAM"问题的优化

背景：MongoDB v4.2.7

错误：OperationFailed: Sort operation used more than the maximum 33,554,432 bytes of RAM. Add an index, or specify a smaller limit.’ on server

修改：增加 sort memory

*** 修改当前运行时（重启MongoDB失效） ***

1. 查询现有配置

db.adminCommand({getParameter: '*'})

 

2. 更新配置（MongoDB v4.2）

db.adminCommand({"setParameter":1,"internalQueryExecMaxBlockingSortBytes":335544320})

更新配置（MongoDB v4.4）
参考资料：https://jira.mongodb.org/browse/SERVER-44053

db.adminCommand({"setParameter":1,"internalQueryMaxBlockingSortMemoryUsageBytes":335544320})

 

*** 持久化到配置文件中（重启MongoDB有效） *** 

更新配置（MongoDB v4.2）

setParameter:
  internalQueryExecMaxBlockingSortBytes: 335544320

更新配置（MongoDB v4.4）

setParameter:
  internalQueryMaxBlockingSortMemoryUsageBytes: 335544320

 

参考资料

https://mobilemonitoringsolutions.com/memory-errors-mongodb-resolve/
https://www.cnblogs.com/dgshubo/p/12397775.html
https://jira.mongodb.org/browse/SERVER-44053