DNS服务器响应缓慢会导致DNS超时

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适用场景

ONTAP 9
域名服务(DNS)

问题描述

如果DNS在配置的超时期限内没有响应、则会发生超时
对DNS服务器的ping操作响应正常。
EMS会记录以下错误：

[NODENAME: mgwd: dns.server.timed.out:error]: DNS server x.x.x.x did not respond to vserver = svm3 within timeout interval.

或原始EMS文件日志：

<secd_dns_server_timed_out_1 ipaddr="x.x.x.x" vsName="vserver_name"/>

在SECD.log 中可能会出现错误：

ERR : NSLIBC: __res_nsend(), ../../../../../lib/libc/resolv/res_send.c:804, Vsid = 3 Timed out while connecting to DNS server: x.x.x.x via Source Address x.x.x.x. Error: Operation timed out debug: Logged secd.dns.server.timed.out to EMS. { in logEmsEventForDnsError() at src/utils/secd_ems_utils.cpp:1035 }