[ZBX-11482] httpconf.php uses infinite backlook in getLast() Created: 2016 Nov 14  Updated: 2017 May 30  Resolved: 2017 Jan 04

Status: Closed
Project: ZABBIX BUGS AND ISSUES
Component/s: API (A)
Affects Version/s: 3.0.5, 3.2.0
Fix Version/s: 3.0.8rc1, 3.2.4rc1, 3.4.0alpha1

Type: Incident report Priority: Trivial
Reporter: D.Spindel Ljungmark Assignee: Unassigned
Resolution: Fixed Votes: 0
Labels: lastvalue, patch, performance, webmonitoring
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Attachments: File 0001-ZBX-11482-Limit-backpeek-on-history_uint-for-httpcon.patch    

 Description   

httpconf.php uses infinite backlooking on history tables to find a single value, where other parts of the code bounds the lookback to ZBX_HISTORY_PERIOD, usuall 86400

By bounding the query we can avoid an expensive backlook with an unbounded time if the history_uint table is big.

 Comments   
Comment by D.Spindel Ljungmark [ 2016 Nov 14 ]

Patch that limits how far back in time the query looks.

Comment by vitalijs.cemeris (Inactive) [ 2016 Nov 28 ]

(1) Translation strings removed:

  • Never executed

gunarspujats CLOSED

Comment by vitalijs.cemeris (Inactive) [ 2016 Nov 28 ]

Fixed in the development branch svn://svn.zabbix.com/branches/dev/ZBX-11482

Comment by Gunars Pujats (Inactive) [ 2016 Dec 05 ]

(2) Now if web test is not executed in last 24 hours, then status is "Unknown" and field "Last check" is "Never".

vitalijs.cemeris RESOLVED in r64509

gunarspujats CLOSED

Comment by Gunars Pujats (Inactive) [ 2016 Dec 19 ]

(3) Coding style
outdated PHPDoc in include/classes/api/managers/CHttpTestManager.php : 1020

RESOLVED in r64570

vitalijs.cemeris CLOSED

Comment by Gunars Pujats (Inactive) [ 2016 Dec 19 ]

(4) [D] In Monitoring->Web list and details views fields Last check and Status will be empty if web scenario is not executed in last 24 hours. This should be mentioned in

vitalijs.cemeris RESOLVED

martins-v Thanks, I also added "since Zabbix 3.0.8/3.2.4" to the corresponding entries. Mentioned this in the upgrade notes for 3.0.8 and 3.2.4 as well. Could be closed now.

vitalijs.cemeris CLOSED

Comment by Gunars Pujats (Inactive) [ 2016 Dec 19 ]

TESTED, but close (3) before merging

Comment by vitalijs.cemeris (Inactive) [ 2017 Jan 02 ]

Fixed in:

  • pre-3.0.8.rc1 r64812
  • pre-3.2.4.rc1 r64813
  • pre-3.3.0 r64814
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