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https://issues.apache.org/jira/browse/TS-423?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12901719#action_12901719
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Leif Hedstrom commented on TS-423:
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Oh, forgot, relevant places to change code:
iocore/dns/P_DNSProcessor.h: #define MAX_DNS_IN_FLIGHT 60
proxy/mgmt2/RecordsConfig.cc: {CONFIG, "proxy.config.dns.max_dns_in_flight",
"", INK_INT, "60", RU_REREAD, RR_NULL, RC_NULL, NULL, RA_NULL}
> Increase default max number of outstanding DNS requests
> -------------------------------------------------------
>
> Key: TS-423
> URL: https://issues.apache.org/jira/browse/TS-423
> Project: Traffic Server
> Issue Type: Improvement
> Reporter: Leif Hedstrom
> Priority: Minor
>
> Currently, the default for max number of DNS request in-flight is 60. This
> seems awfully small, particularly for a forward proxy. What if we increase
> this to maybe 512, or some other large'ish number? What is a reasonable,
> default "upper" limit? I assume this setting is there to not kill the
> external resolver.
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