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【华为云技术分享】mongos-sharding连接池配置

时间:2020-02-29 20:11:47      阅读:80      评论:0      收藏:0      [点我收藏+]

标签:parameter   out   ons   end   空闲   nim   参考   art   The   

ShardingTaskExecutorPoolMaxSize

1 Maximum number of outbound connections each TaskExecutor connection pool can open to any given mongod instance. 
2 The maximum possible connections to any given host across all TaskExecutor pools is

连接池最大大小,默认没有限制
对于mongod最大连接控制:ShardingTaskExecutorPoolMaxSize * taskExecutorPoolSize

ShardingTaskExecutorPoolMinSize

Minimum number of outbound connections each TaskExecutor connection pool can open to any given mongod instance.

连接池最小大小,默认为1

taskExecutorPoolSize

1 The number of Task Executor connection pools to use for a given mongos. 
2 The parameter has a minimum value of 4 and a maximum value of 64.

任务池大小,默认是cpu核数

ShardingTaskExecutorPoolMaxConnecting

1 Maximum number of simultaneous initiating connections (including pending connections in setup/refresh state) 
2 each TaskExecutor connection pool can have to a mongod instance. You can set this parameter to control 
3 the rate at which mongos adds connections to a mongod instance.

并发进行初始连接的数量,默认没有限制,该值保持在ShardingTaskExecutorPoolMaxSize以下

ShardingTaskExecutorPoolRefreshRequirementMS

Maximum time the mongos waits before attempting to heartbeat a resting connection in the pool.

连接池保活心跳的间隔时间,默认1分钟

ShardingTaskExecutorPoolRefreshTimeoutMS

Maximum time the mongos waits for a heartbeat before timing out the heartbeat

连接池保活心跳的超时时间,默认20秒

ShardingTaskExecutorPoolHostTimeoutMS

Maximum time that mongos goes without communication to a host before mongos drops all connections to the host.

空闲时间阈值,默认30秒,当mongos与mongod在指定时间内没有交互时会释放连接。

参考文档
https://docs.mongodb.com/v3.4/reference/parameters/#param.ShardingTaskExecutorPoolMaxSize

作者:华为云专家 zale

技术图片

【华为云技术分享】mongos-sharding连接池配置

标签:parameter   out   ons   end   空闲   nim   参考   art   The   

原文地址:https://www.cnblogs.com/huaweicloud/p/12384845.html

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