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geedge-jira/md/OMPUB-486.md
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# 【E21-OLAP】E现场DIR-IGW OLAP服务器出现OLAP Memory space告警信息
| ID | Creation Date | Assignee | Status |
|----|----------------|----------|--------|
| OMPUB-486 | 2022-05-16T20:27:32.000+0800 | 戚岱杰 | 已关闭 |
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2022-05-11 DIR-IGW olap服务器出现内存告警
经2022-05-12问题定位进展统计的指标没有把内核用于缓存的内存计算进去导致。
目前结果告警消息已自然消除但是此次问题定位中发现的OLAP Memory统计的指标是否需要更新待OLAP研发同事确认。**qidaijie** commented on *2022-05-18T11:40:57.718+0800*:
根据排查,目前的监控指标公式内缺少 系统内核使用缓存的指标在Nezha目前的公式计算出的结果与服务器上对比有误差导致了误告警。
解决方案修改Metric指标公式变更为 1 - (available / total) 。
请 [~liuju] 根据文档 [^监控指标更新.docx] 对Nezha告警及部分涉及的图表Metric指标公式进行修改。
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**liuju** commented on *2022-05-18T15:34:16.381+0800*:
已根据监控指标更新文档进行告警规则和图表的更新,更新后的图表数据展示数据也已微信提供[~qidaijie] 
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**qidaijie** commented on *2022-05-18T18:29:57.676+0800*:
根据反馈图表,已确认均更新完成且正确。
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## Attachments
**28111/clickhouse内存使用率趋势图.png**
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**28112/Druid内存使用率趋势图.png**
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**28080/监控指标更新.docx**
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**28113/内存告警规则.png**
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