Discussion thread for official Zabbix Template Redis

[AlexL]

This thread is designed to provide grounds for discussion of the official Zabbix Template for Redis.
The template and details of the template is available in GIT repository: https://git.zabbix.com/projects/ZBX/...lates/db/redis

Please note that this template requires Agent2 with compiled with Redis support. ( https://git.zabbix.com/projects/ZBX/.../plugins/redis )
To learn about Agent2 please see the documentation: https://www.zabbix.com/documentation...oncepts/agent2
Additional videos describing Agent2 are available on YouTube: https://www.youtube.com/watch?v=OWj2pk_I-rI


Zabbix is always looking for ways to improve our services and to make our users happier.
We pride ourselves on doing our best each and every day, but we know that there is always something more to learn.
We would like to hear back from you to know what have you liked and what would you improve in the template.

[jmrice]

I imported the Redis template at: https://git.zabbix.com/projects/ZBX/...e_db_redis.xml
I am getting "Unsupported item key." for the following checks:
Template DB Redis: Redis: Ping redis.ping["{$REDIS.CONN.URI}"]
Template DB Redis: Redis: Slowlog entries per second redis.slowlog.count["{$REDIS.CONN.URI}"]

The macro setting for {$REDIS.CONN.URI} tcp://localhost:6379

What am I missing?

[jmrice]

ok, so I need zabbix_agent2. We are currently running 4.4.7. Can the zabbix_agent2 be installed using this version of the server? Or will it need to wait until 5.0?

[AlexL]

ok, so I need zabbix_agent2. We are currently running 4.4.7. Can the zabbix_agent2 be installed using this version of the server? Or will it need to wait until 5.0?

The Zabbix agent2 can be installed with 4.4.7.
Warm Regards,
Alex

[jmrice]

From what I had read, zabbix_agent2 is still experimental and may be included in server version 5.0. Maybe this has changed.
How do I download and install just the zabbix_agent2 ?

In the mean time, I went through the gyrations of implementing the solution here: https://github.com/cloudtemple/zabbi...r/zabbix_redis
It includes a custom template, a config file, and a python script. I got it to work, but it was non trivial.

[FelipeVieira]

I found an error in the expression:

Redis: Memory usage is too high (over {$REDIS.MEM.PUSED.MAX.WARN}% in 5m)

-

{TEMPLATE_NAME:redis.memory.maxmemory[{#SINGLETON}].min(5m)}/{Template DB Redis:redis.memory.used_memory.last()}*100>{$REDIS .MEM.PUSED.MAX.WARN}

WARNING

It is using a formula max / used . The correct formula is used / max .

{Template DB Redis:redis.memory.used_memory.min(5m)}/{Template DB Redis:redis.memory.maxmemory[{#SINGLETON}].last()}*100>{$REDIS.MEM.PUSED.MAX.WARN}

[altuhovsu]

Hello! I installed zabbix_agent2 5.0.1, added to config 2 instances of the redis:

Plugins.Redis.Sessions.Redis6399.Uri=tcp://127.0.0.1:6399
Plugins.Redis.Sessions.Redis6399.Password=pass
Plugins.Redis.Sessions.Redis6398.Uri=tcp://127.0.0.1:6398
Plugins.Redis.Sessions.Redis6398.Password=pass

If I specify macros {$REDIS.CONN.URI} = Redis6399 , than it works, but only for 1 instance. If specify Redis6399, Redis6398 (like for template_db_mysql_agent2) I get an error (wrong session).
How template_db_mysql_agent2 works with multiple instances/sessions?

[mikelog]

Does this template works without zabbix_agent2 ?

[jmrice]

Template App RabbitMQ node by Zabbix agent: RabbitMQ: Get nodes: RabbitMQ: Free disk space

rabbitmq.node.disk_free

Preprocessing failed for: {"error":"Object Not Found","reason":"Not Found"}
1. Failed: cannot extract value from json by path "$.disk_free": no data matches the specified path

zabbix_get -s rabbitmq1 -p 10050 -k rabbitmq.node.disk_free
ZBX_NOTSUPPORTED: Unsupported item key.

According to the docs, Preprocessing:
- JSONPATH: $.disk_free

is correct. What am I missing?

[altuhovsu]

Does this template works without zabbix_agent2 ?

No, it is using redis plugin in the zabbix_agent2.

[Denikin80]

Try using Template DB Redis https://git.zabbix.com/projects/ZBX/...lates/db/redis

Zabbix version - 5.0.1
redis 6.0.4

The proplem is with template macros:

{$REDIS.CONN.URI}

Connection string in the URI format (password is not used). This param overwrites a value configured in the "Server" option of the configuration file (if it's set), otherwise, the plugin's default value is used: "tcp://localhost:6379"

tcp://localhost:6379

My Redis instance require password for auth clients, and so key data elements failed to get value - "NO AUTH (Authentication required)" error.

So i edit config

/etc/zabbix/zabbix_agent2.conf

by adding two strings:

Plugins.Redis.Sessions.Redis1.Uri=tcp://localhost:6379
Plugins.Redis.Sessions.Redis1.Password=password

But with no luck - still the same error in data elements - "NO AUTH (Authentication required)"

[siljathomas]

I went by requesting the solution, It includes a custom template, the file configuration and the Snake script I worked on, but not much.

[mtlalka]

Hello,

I have a question.

Is there any option to change the command that is executed for item redis.config["{$REDIS.CONN.URI}","{$REDIS.PASS}"] ?

I didn't find anything about this in docs.

Because in my environment config is renamed :

redis.conf
...
rename-command CONFIG blebleble
...

and because of this this item is unsuported with this in debug log :

zabbix_agent2.log
...
executing direct exporter task for key 'redis.config["tcp://localhost:6379","blebleble"]
[Redis] ERR unknown command `CONFIG`, with args beginning with: `GET`, `*`, (Cannot fetch data.)
...

[dbfontes]

Hello! I installed zabbix_agent2 5.0.1, added to config 2 instances of the redis:

Plugins.Redis.Sessions.Redis6399.Uri=tcp://127.0.0.1:6399
Plugins.Redis.Sessions.Redis6399.Password=pass
Plugins.Redis.Sessions.Redis6398.Uri=tcp://127.0.0.1:6398
Plugins.Redis.Sessions.Redis6398.Password=pass

If I specify macros {$REDIS.CONN.URI} = Redis6399 , than it works, but only for 1 instance. If specify Redis6399, Redis6398 (like for template_db_mysql_agent2) I get an error (wrong session).
How template_db_mysql_agent2 works with multiple instances/sessions?

I have the same problem, how should we monitor multiple instances?

[RFriberg]

I have the same problem, how should we monitor multiple instances?

Same problem here. Would be nice with support for multiple instances.