Comments (4)
from tendis.
是的,2.5.0的问题在2.6.0里得到了修复。
参看版本日志:
http://tendis.cn/#/Tendisplus/整体介绍/releasenodes
具体是:
“优化主节点空转时cpu的消耗。之前主节点在没有请求时,cpu消耗大约0.2个核,优化后占用大约0.03个核。”
from tendis.
是的,2.5.0的问题在2.6.0里得到了修复。 参看版本日志: http://tendis.cn/#/Tendisplus/整体介绍/releasenodes 具体是: “优化主节点空转时cpu的消耗。之前主节点在没有请求时,cpu消耗大约0.2个核,优化后占用大约0.03个核。”
是整个master节点多了0.2个核的cpu消耗,还是每个主从同步增量推送线程多了0.2核的cpu消耗呢?我这边观察多个集群的master节点,单个主从同步增量推送线程都稳定消耗0.04个核心,2.5.0将incrPushThreadnum默认值由4改成了10,如果我想通过将该值改回4以降低cpu消耗,不知道在2.5.0版本会不会造成什么其他的影响呢?
from tendis.
这个线程主要是用来做主从数据同步的,如果设置的少了,可能会造成主从之间数据同步进度较慢,在负载较高的情况下容易出现从节点数据落后主节点数据过多,主节点如果发生崩溃等情况,可能丢失数据。
如果 CPU开销确实影响较大的话,建议升级到 2.6.0。如果维持在 2.5.0 降低这个线程数,可能会影响到主从数据同步。
from tendis.
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from tendis.