1.概述

原文：【zookeeper】fsync-ing the write ahead log in took which will adversely effect operation latency

在解决上一个问题的时候遇到这个问题的：【Clickhouse】Cannot allocate block number in Zookeeper write prefix view location 在这篇博客中出现了fsync-ing the write ahead log in took which will adversely effect operation latency 如下。

我想知道这个是在干嘛，会不会对我上面的那个问题造成影响。因此去查看了一下。

2.源码分析