[ZBX-26610] Some tasks are getting stuck in preprocessing queue Created: 2025 Jun 26  Updated: 2025 Jun 27  Resolved: 2025 Jun 27

Status: Closed
Project: ZABBIX BUGS AND ISSUES
Component/s: Proxy (P), Server (S)
Affects Version/s: 7.0.15
Fix Version/s: 7.0.16, 7.2.10

Type: Problem report Priority: Trivial
Reporter: Andris Zeila Assignee: Andris Zeila
Resolution: Fixed Votes: 8
Labels: None
Remaining Estimate: Not Specified
Time Spent: 3h
Original Estimate: Not Specified

Attachments: File host_block_devices_active_agent.yaml     File zbx_export_hosts_trim_dep.yaml    
Issue Links:
Causes
caused by ZBX-26588 Zabbix 7.0.14 preprocessing manager o... Closed
Duplicate
Team: Team A
Sprint: S25-W26/27
Story Points: 0.5

 Description   

Caused by ZBX-26588 fix.

To reproduce:

  1. import host host_block_devices_active_agent.yaml
  2. set correct agent hostname Host (or rename imported host)
  3. start server and agent
  4. observe that data gathering stops and queued sequences (-R diaginfo=preprocessing) keep growing


 Comments   
Comment by Priit Saar [ 2025 Jun 26 ]

Can confirm this is also happening on our test setup with block devices monitoring specifically. Some host gets vfs monitoring items stuck in queue permanently and it keeps growing.

Preprocessing manager processes on proxy start using high amount of CPU as a result.

Comment by Alexander Vladishev [ 2025 Jun 27 ]

Released ZBX-26610 in:

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