sudo apt updatesudo apt upgrade filebeatsudo systemctl restart filebeatfilebeat versionwget https://artifacts.elastic.co/downloads/beats/filebeat/filebeat-<version>-linux-x86_64.deb。/etc/filebeat/和数据目录/var/lib/filebeat/。sudo dpkg -i filebeat-<version>-linux-x86_64.deb，解决依赖问题用sudo apt-get install -f。sudo systemctl start filebeat并验证状态sudo systemctl status filebeat。/etc/default/filebeat中BEAT_MEMORY_LIMIT参数。queue.type=persisted并调整queue.max_bytes。journalctl -u filebeat -f查看实时日志，或使用Elastic Stack监控指标。注意：更新前务必备份重要数据，若遇依赖问题可参考官方文档或社区支持。
