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https://issues.apache.org/jira/browse/IOTDB-2059?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17449363#comment-17449363
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Haiming Zhu commented on IOTDB-2059:
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现象：
!现象.png|width=880,height=223!
根据日志画出的图（offset 从 2021-11-23 16:44开始，每分钟一个 offset）：
!avg_insert_time.png|width=397,height=310!!insert_operation_num.png|width=408,height=305!!avg_memtable_size.png|width=391,height=302!
!avg_memtable_flush_time.png|width=397,height=293!!wal_buffer_overflow_num.png|width=395,height=298!!end_file_num.png|width=399,height=302!
分析：
在 [25, 125] 这个区间内，即现象中的 5:10 - 6:50 间
# 平均写入时间上升
# 平均写入次数、wal 平均数据量、memtable 平均数据量、memtable 平均刷盘时间、封口 tsfile 数量等指标均出现下降
> 0.12.3 RC2 writing latency fluctuates
> -------------------------------------
>
> Key: IOTDB-2059
> URL: https://issues.apache.org/jira/browse/IOTDB-2059
> Project: Apache IoTDB
> Issue Type: Bug
> Reporter: Haonan Hou
> Assignee: Haiming Zhu
> Priority: Major
> Attachments: avg_insert_time.png, avg_memtable_flush_time.png,
> avg_memtable_size.png, end_file_num.png, image-2021-11-25-17-02-03-198.png,
> insert_operation_num.png, wal_buffer_overflow_num.png, 现象.png
>
>
> !image-2021-11-25-17-02-03-198.png!
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