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Open source alternative to Datadog.
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Circonus combines multiple monitoring, alerting, event processing, and analytics tools into one unified solution.
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Uptrace is an open source APM tool that supports distributed tracing, metrics, and logs. You can use it to monitor applications and set up automatic alerts to receive notifications via email, Slack, Telegram, and more.
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Dockter is a low-overhead , open source Docker log management tool built around: Real-time Log Aggregation, Efficient Storage and Search Capability.
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Parca is a continuous profiling project for applications and infrastructure.
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Command line parser for common log format (Nginx default).