长一致点( WAFL.cp.toolong )是否正常?
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- Votes:
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- Category:
- ontap-9
- Specialty:
- perf<a>wafl.cp.toolong</a><a>cp</a>
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适用场景
- ONTAP 9
- Data ONTAP 7-模式
问题解答
- 如果不影响性能,则为是,则偶尔出现的长一致点( CP )正常且是预期的
- 建议检查延迟是否高于预期
- 有时, CP 时间较长会频繁发生,如果无法确定发生原因,可以创建案例进行进一步调查
追加信息
- 如果在此期间延迟增加,超过预期水平,则需要进行调查
- 示例: 在不同 Data ONTAP 或 ONTAP 版本的事件日志( EMS )中记录的消息:
- ONTAP 9:
Mon Dec 23 00:20:36 EST [FilerA: wafl_exempt08: wafl.cp.toolong:error]: Aggregate fas_01_DATA_AGGR experienced a long CP... This message occurs when a WAFL(R) consistency point (CP) takes longer than 30 seconds. A CP lasting more than 30 seconds might cause client latency and potentially a client outage.
- Data ONTAP 7- 模式:
Mon Feb 22 16:14:08 CLT [FilerA: wafl_CP_proc: wafl.cp.toolong.warning:warning]: params: ... Mon F
eb 22 16:14:08 CLT [FilerA: wafl_CP_proc: wafl.cp.slovol.warning:warning]: params: ...
- ONTAP 9: