Tickets :: [#14056] Performance - DNS issues

6.0.0-alpha12

6/8/25

Summary	Performance - DNS issues
Queue	Horde Framework Packages
Type	Enhancement
State	Resolved
Priority	1. Low
Owners	jan (at) horde (dot) org
Requester	arus (at) poczta (dot) onet (dot) pl
Created	07/17/2015 (3614 days ago)
Due
Updated	10/20/2017 (2788 days ago)
Assigned
Resolved	01/22/2016 (3425 days ago)
Milestone
Patch	No

10/20/2017 08:33:46 PM	Git Commit	Comment #4	Reply to this comment
Changes have been made in Git (FRAMEWORK_5_2): commit 573699928f63449c56d9cc102a77546d3469064e Author: Jan Schneider <jan@horde.org> Date: Fri, 22 Jan 2016 18:46:08 +0100 Add a note on DNS lookups (~~Request #14056~~). M docs/PERFORMANCE https://github.com/horde/base/commit/573699928f63449c56d9cc102a77546d3469064e

01/25/2016 10:34:43 AM	Git Commit	Comment #3	Reply to this comment
Changes have been made in Git (FRAMEWORK_5_2): commit 39b433847af233d6a095e0245100fba08ebc9d0e Author: Jan Schneider <jan@horde.org> Date: Fri Jan 22 18:42:00 2016 +0100 Add a note on DNS lookups (~~Request #14056~~). horde/docs/PERFORMANCE \| 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) http://github.com/horde/horde/commit/39b433847af233d6a095e0245100fba08ebc9d0e

01/22/2016 05:42:47 PM	Jan Schneider	Assigned to Jan Schneider State ⇒ Resolved

01/22/2016 05:42:40 PM	Git Commit	Comment #2	Reply to this comment
Changes have been made in Git (master): commit b00f6379c24203bc8d4bf5aad826662371b24b8f Author: Jan Schneider <jan@horde.org> Date: Fri Jan 22 18:42:00 2016 +0100 Add a note on DNS lookups (~~Request #14056~~). horde/docs/PERFORMANCE \| 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) http://github.com/horde/horde/commit/b00f6379c24203bc8d4bf5aad826662371b24b8f

07/17/2015 08:05:53 AM	arus (at) poczta (dot) onet (dot) pl	Comment #1 Priority ⇒ 1. Low Patch ⇒ No Milestone ⇒ Queue ⇒ Horde Framework Packages Summary ⇒ Performance - DNS issues Type ⇒ Enhancement State ⇒ New	Reply to this comment
Please add a paragraph to the documentation (performance guide at http://www.horde.org/apps/horde/docs/PERFORMANCE), that DNS query timeouts can terribly slow Horde. There is already a note about turning off dns lookups for Apache logging, but Horde makes calls to gethostbyaddr and gethostbyname in it's code, and dns timeouts can slow the application a lot (like: you must wait up to 10 seconds after every click). I had only one of three dns servers misconfigured and Horde was almost unusable, and finding the reason took too much time. Maybe it can be fixed somehow in the code, but I leave it up to You. Appropriate guidelines in docs are enough for me.