[ZBX-11658] Aggregate error: 'No items for key "%s" in group(s) "groupname".' Created: 2016 Dec 30  Updated: 2024 Apr 10  Resolved: 2017 Oct 31

Status: Closed
Project: ZABBIX BUGS AND ISSUES
Component/s: Server (S)
Affects Version/s: 3.2.2
Fix Version/s: 3.2.10rc1

Type: Problem report Priority: Minor
Reporter: Janne Korkkula Assignee: Unassigned
Resolution: Fixed Votes: 5
Labels: aggregate
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified
Environment:

PostgreSQL clusters Monitored with pg_monz 2.0.1 via a Zabbix proxy.

Issue Links:
Sub-task
part of ZBX-11805 Fix aggregate checks error message Closed
Team: Team C
Sprint: Sprint 19
Story Points: 0.25

 Description   

Aggregate item definition:

key_: grpsum["{$PG_HOST_GROUP}","psql.primary_server[{$PGSCRIPTDIR},$PGSCRIPT_CONFDIR}]",last]
error: No items for key "%s" in group(s) "Cluster: Postgres/GEN/test".

Source item definition:

key_: psql.primary_server[{$PGSCRIPTDIR},{$PGSCRIPT_CONFDIR}]

The user macro contents are also identical on the aggregate host and the source hosts, which are in the group "Cluster: Postgres/GEN/test".

The group name matches and all source items have valid values, but all aggregate items are 'not supported' with an error like this.

That "%s" in the error message should probably expand to something useful, but is the issue just one of error message parameter expansion or is it really comparing the key to a literal "%s" string and failing because of that..?

 Comments   
Comment by Glebs Ivanovskis (Inactive) [ 2017 Jan 03 ]

Indeed, error message should be more useful. It's a regression from ZBXNEXT-3451:

zbx_strcpy_alloc(error, &error_alloc, &error_offset, "No items for key \"%s\" in group(s) ");

The reason of the error is ZBX-2866 and the fact that Zabbix tries to resolve all macros in all keys before sending them to agents or executing himself. As a workaround you can "protect" your macros from resolving in parameters of item to be aggregated by wrapping them in extra layer of macros:

{$MACRO} => macro_value
item_to_aggregate[{$MACRO},...]
{$MACRO_PROTECTED} => {$MACRO}
grpsum[group,"item_to_aggregate[{$MACRO_PROTECTED},...]",...]
Comment by Glebs Ivanovskis (Inactive) [ 2017 Oct 17 ]

Fix for version 3.2 is available in development branch svn://svn.zabbix.com/branches/dev/ZBX-11658 revision 73598.

Comment by Sergejs Paskevics [ 2017 Oct 26 ]

Successfully tested

Comment by Glebs Ivanovskis (Inactive) [ 2017 Oct 26 ]

Fixed in pre-3.2.10rc1 r73967.

Turns out, 3.4 and higher versions are not affected because pre-3.4 trunk was fixed in ZBX-11805.

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