Steps to reproduce:

Apply template Gridgain by JMX to a running instance of gridgain

Result:

Some items do not work properly because of a wrong macro, {$IGNITE.USER} instead of {$GRIDGAIN.USER} used in the template for 4 items for discovery rule of Thread pools, producing errors, because {$IGNITE.USER} is not declared:
**
2024-03-28 08:25:36.069 [pool-2-thread-4] WARN com.zabbix.gateway.JMXItemChecker - cannot process keys ......
: Invalid username or password: service:jmx:rmi:///jndi/rmi://gridgain-node:49112/jmxrmi
**
Expected:
correct behaviour for all items

How to fix:
To correct this issue, all entries of {$IGNITE.USER} in https://git.zabbix.com/projects/ZBX/repos/zabbix/browse/templates/db/gridgain_jmx/template_db_gridgain_jmx.yaml?at=release%2F6.4  should be replaced with {$GRIDGAIN.USER}

Correct template and diff are attached