Oracle 12c以下版本RAC与Redhat Linux的avahi-daemon服务的水火不容

最新推荐文章于 2024-12-17 19:31:15 发布

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最新推荐文章于 2024-12-17 19:31:15 发布 · 6.1k 阅读

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Oracle官方建议在RAC版本低于12.1时关闭avahi-daemon服务，以避免网络性能问题和稳定性风险。开启该服务可能导致RAC节点驱逐重启等问题。若必须启用，需升级到12.1版本，但考虑到版本差距和应用稳定性，不推荐直接升级。官方文档提供了关闭服务的解决方案。

对于Redhat Linux的avahi-daemon服务，Oracle官方开发人员建议如下：

（1） Avahi (avahi-daemon) is a freeimplementation of Apple's "ZeroConf" utility and uses the mDNS/DNS-SDprotocol suite for service discovery. It runs as a daemon / service and scansthe network for printers and other shared resources such as chat servers andfiles that are being shared. It can also provide DNS and DHCP services. This isquite useful for portable computers such as laptops, but is not needed onservers.It can also contribute to slower networkperformance, and can become unstable under heavy loads.

ß会造成网络性能问题及负载过高时不稳定
@ This is not Oracle problem, for some Linux distributions, this daemon is up
@ and enable by default, itdoes not do any good to Oracleandhence this bug

ßOracle后台开发人员明确指出开启此服务对oracle没有任何益处，反而会触发bug
@ requests CVU to check and provide fix-up to to disable it.