246505b538a6449eda7a9936609e9fec4632fe5d - kudu

commit	246505b538a6449eda7a9936609e9fec4632fe5d	[log] [tgz]
author	Andrew Wong <awong@cloudera.com>	Wed Sep 15 19:45:09 2021 -0700
committer	Andrew Wong <awong@cloudera.com>	Tue Sep 21 22:35:33 2021 +0000
tree	d674ee45add4dabd6b0e66d9847985ce0d8b9cbd
parent	63a3293dde23d32b8012f3b4765d380f817f23b0 [diff]

[util] allow DnsResolver to refresh DNS addresses

This patch introduces functionality to the DnsResolver to refresh an
address, rather than looking it up in the cache. It does this by
removing any cached entry and performing the lookup.

This will be used in a follow-up change to refresh the address on
certain transient failures.

A new --dns_addr_resolution_override flag is also introduced for testing
purposes.

Change-Id: I0616f3e6fb50aba271f106b05d1926fc46a53ed0
Reviewed-on: http://gerrit.cloudera.org:8080/17849
Tested-by: Kudu Jenkins
Reviewed-by: Alexey Serbin <aserbin@cloudera.com>

src/kudu/util/net/dns_resolver-test.cc[diff]
src/kudu/util/net/dns_resolver.cc[diff]
src/kudu/util/net/dns_resolver.h[diff]
src/kudu/util/net/net_util.cc[diff]
src/kudu/util/ttl_cache.h[diff]

5 files changed

tree: d674ee45add4dabd6b0e66d9847985ce0d8b9cbd