Cassandra metrics and Zabbix

[Roman Alekseev]

Greetings,

I am trying to utilize metrics-reporter-config in Cassandra to send certain metrics to Zabbix and the config file /etc/cassandra/metrics-reporter-config.yaml looks as below:

zabbix:

  -

    period: 2

    timeunit: 'SECONDS'

    hosts:

      - host: 'my.zabbix.host'

        port: 10051

    predicate:

      color: "white"

      useQualifiedName: true

      patterns:

        - "^org.apache.cassandra.metrics.Storage.Load"

It seems that initialization is happening to some extent, i.e. should I remove zabbix-sender jar from Cassandra libs it will point out on it:

INFO  [main] 2018-11-06 13:01:53,876 CassandraDaemon.java:349 - Trying to load metrics-reporter-config from file: metrics-reporter-config.yaml

ERROR [main] 2018-11-06 13:01:53,902 ZabbixReporterConfig.java:42 - Tried to enable Zabbix Reporter, but class io.github.hengyunabc.zabbix.sender.ZabbixSender was not found

WARN  [main] 2018-11-06 13:01:53,903 ReporterConfig.java:288 - No reporters were succesfully enabled

However that's all I was able to achieve, there is neither error nor attempt to send anything to Zabbix observed on a host running Cassandra. Moreover I tried to set non existing host in configuration and still no error in Cassandra logs.

Should I use console instead of zabbix in /etc/cassandra/metrics-reporter-config.yaml the metric is exposed without any issue.

Could you please suggest if it is a known problem?

Are there any options to enable extended debugging for metrics-reporter-config?

Thank you.

WBR,

Roman

[Roman Alekseev]

I have finally identified the problem with zabbix reporter - class com.addthis.metrics3.reporter.config.ZabbixReporter extends com.codahale.metrics.ScheduledReporter, however com.addthis.metrics3.reporter.config.ZabbixReporterConfig misses scheduler startup and as a result report() function is never invoked.

Adding reporter.start(getPeriod(), getRealTimeunit()); before reporters.add(reporter); in com.addthis.metrics3.reporter.config.ZabbixReporterConfig fixes it.

One more thing to pay attention to is that Zabbix sender relies on fastjson so you need to have fastjson-1.2.54.jar in classpath.

Hope it helps.

--

WBR,

Roman

среда, 7 ноября 2018 г., 10:06:36 UTC+3 пользователь Roman Alekseev написал: