VictoriaMetrics is a fast, cost-effective, and scalable time-series database and monitoring solution. It is designed to handle large volumes of data efficiently, making it ideal for monitoring systems and applications. VictoriaMetrics supports Prometheus querying API, making it compatible with existing Prometheus setups.
Data loss in VictoriaMetrics can manifest as missing metrics, incomplete data points, or gaps in time-series data. Users may notice that certain queries return incomplete results or that historical data is missing from dashboards.
Data loss in VictoriaMetrics can occur due to several reasons:
VictoriaMetrics relies on proper shutdown procedures to ensure data integrity. Abrupt shutdowns can result in data loss if data in memory is not written to disk.
Disk failures can lead to data corruption or loss. Regular disk health checks and monitoring can help mitigate this risk.
Regular backups are crucial for data recovery. Use the following command to create a snapshot of your data:
curl -X POST http://:8428/snapshot/create
Ensure that snapshots are stored in a reliable and redundant storage system.
Always use the following command to gracefully shut down VictoriaMetrics:
kill -SIGINT
This ensures that all data is properly flushed to disk before shutdown.
Check your VictoriaMetrics configuration for any errors. Ensure that the -retentionPeriod and -storageDataPath settings are correctly configured. Refer to the official documentation for more details.
Regularly monitor disk health using tools like smartmontools to detect and address potential disk failures early.
Data loss in VictoriaMetrics can be mitigated by implementing regular backups, ensuring proper shutdown procedures, verifying configuration settings, and monitoring disk health. By following these steps, you can enhance the reliability and integrity of your time-series data.
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