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https://issues.apache.org/jira/browse/ZOOKEEPER-4757?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17774883#comment-17774883
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Andor Molnar commented on ZOOKEEPER-4757:
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{quote} I have contacted both those downstream projects with similar requests,
...
{quote}
That makes perfect sense to me. I think such addition would be better fit for a
ZooKeeper docker project.
{quote}...I still feel the best place to add this convenience feature is
upstream where Maven can help keep versions in sync etc.
{quote}
What do you mean exactly by 'Maven can help keep versions' and why is it an
advantage over a docker project?
> Support JSON format logging
> ---------------------------
>
> Key: ZOOKEEPER-4757
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-4757
> Project: ZooKeeper
> Issue Type: Improvement
> Reporter: Jan Høydahl
> Priority: Major
> Labels: pull-request-available
> Time Spent: 2.5h
> Remaining Estimate: 0h
>
> More and more enterprise users request structured JSON format logging for
> their applications. This removes the need for configuring custom log line
> parsers for every application when collecting logs centrally.
> Zookeeper has flexible logging through Slf4j and Logback, for which there are
> several ways to achieve JSON logging. But for end users (such as helm chart
> user) it is very difficult to achieve. It should ideally be as simple as a
> configuration option.
> OpenTelemetry is a CNCF project that has become the defacto standard for
> metrics and traces collection. They also cover logging, and they recently
> [standardized on ECS JSON
> format|https://opentelemetry.io/blog/2023/ecs-otel-semconv-convergence/] as
> their log schema for OTEL-logging. Although there are other JSON formats in
> use, a pragmatic option for zookeeper is to only support ECS.
> Proposed way to enable JSON logging:
> {code:java}
> export ZOO_LOG_FORMAT=json
> bin/zkServer.sh start-foreground{code}
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