zabbix 6.4 Queue and Report System Information show Connection timeout of

[solution]

Hello,
In zabbix 6.4 when clicking on Reports --> System Information I see the error:
Connection timeout of 15 seconds exceeded when connecting to Zabbix server "localhost".


and in Queue Overview
Connection timeout of 15 seconds exceeded when connecting to Zabbix server "localhost".


Latest Data:




I found no errors in the log.

I found no errors in the log.

Bug? or does anyone know what I should look for/check in the logs and configs?

Specifications
Debian 11
Apache2 + php 7.4.3
Zabbix Server/Agent 6.4.1 (in 6.4.0 also already had the error)


Thanks.
Wellington

[LenR]

That error is saying the the frontendcall to the zabbix server, port 10051, isn't responding. Which is odd, because I think the same call is used for the "Zabbix server is running" which shows Yes. Most frontend calls are to the mysql database, only a few "internal" things use this path. It's odd that Yes appears but most of the other internal values are blank.

How is the load on the system? What is your SELINUX status?

[solution]

Debian 11 with defaut install

sestatus command not found

uptime:

uptime
16:26:37 up 9 days, 23:37, 1 user, load average: 0,46, 0,32, 0,25

TOP


free:

free -h
total used free shared buff/cache available
Mem.: 31Gi 10Gi 13Gi 297Mi 7,2Gi 20Gi
Swap: 975Mi 0B 975Mi

Dashboard

[solution]

Any ideas?

Wellington

[LenR]

Share the contents of /etc/zabbix/web/zabbix.conf.php (remove password!)

[solution]

this is the content

<?php
// Zabbix GUI configuration file.

$DB['TYPE'] = 'MYSQL';
$DB['SERVER'] = 'localhost';
$DB['PORT'] = '0';
$DB['DATABASE'] = 'zabbix';
$DB['USER'] = 'zabbix';
$DB['PASSWORD'] = 'senhamysql';

// Schema name. Used for PostgreSQL.
$DB['SCHEMA'] = '';

// Used for TLS connection.
$DB['ENCRYPTION'] = false;
$DB['KEY_FILE'] = '';
$DB['CERT_FILE'] = '';
$DB['CA_FILE'] = '';
$DB['VERIFY_HOST'] = false;
$DB['CIPHER_LIST'] = '';

// Vault configuration. Used if database credentials are stored in Vault secrets manager.
$DB['VAULT'] = '';
$DB['VAULT_URL'] = '';
$DB['VAULT_DB_PATH'] = '';
$DB['VAULT_TOKEN'] = '';
$DB['VAULT_CERT_FILE'] = '';
$DB['VAULT_KEY_FILE'] = '';
// Uncomment to bypass local caching of credentials.
// $DB['VAULT_CACHE'] = true;

// Use IEEE754 compatible value range for 64-bit Numeric (float) history values.
// This option is enabled by default for new Zabbix installations.
// For upgraded installations, please read database upgrade notes before enabling this option.
$DB['DOUBLE_IEEE754'] = true;

// Uncomment and set to desired values to override Zabbix hostname/IP and port.
// $ZBX_SERVER = '';
// $ZBX_SERVER_PORT = '';

$ZBX_SERVER_NAME = 'Solution Monitoramento';

$IMAGE_FORMAT_DEFAULT = IMAGE_FORMAT_PNG;

// Uncomment this block only if you are using Elasticsearch.
// Elasticsearch url (can be string if same url is used for all types).
//$HISTORY['url'] = [
// 'uint' => 'http://localhost:9200',
// 'text' => 'http://localhost:9200'
//];
// Value types stored in Elasticsearch.
//$HISTORY['types'] = ['uint', 'text'];

// Used for SAML authentication.
// Uncomment to override the default paths to SP private key, SP and IdP X.509 certificates, and to set extra settings.
//$SSO['SP_KEY'] = 'conf/certs/sp.key';
//$SSO['SP_CERT'] = 'conf/certs/sp.crt';
//$SSO['IDP_CERT'] = 'conf/certs/idp.crt';
//$SSO['SETTINGS'] = [];

Wellington

[solution]

doing some tests what worked was to increase the:
trappers
Now it's opening System Information and Queue.



The strangest thing is that there were no errors in the logs and the maximum was 40% (before increasing)


apparently we cannot trust this data.
and we don't have a base calculator to configure/increase only the necessary and reduce the others.


Wellington