[CONNECTOR] Add experiment report for backup tool #1562
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chia7712
reviewed
Mar 12, 2023
chia7712
reviewed
Mar 12, 2023
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| 並且在本專案建立的 worker 中，預設的 heap size 會發生 `OutOfMemory` 的問題，在手動變更 heap 的 max size 可以避免這問題。 | ||
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| 下圖為 hadoop 在寫入時段的寫入速度狀況，平均寫入速度大概會在 300~600 這區間波動 |
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是否有機會可以更細部的討論一下這個數字？例如只看 hdfs 的吞吐量大概是多少？我們的設計加上去後有沒有善用 hdfs 的效能？
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已新增透過 hadoop fs 指令持續向 hdfs 寫入資料的速度變化圖
基本上 exporter 寫入的速度跟使用兩台同時向 hdfs 寫入的速度是差不多的
5 tasks
chia7712
reviewed
Apr 18, 2023
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| ## 結論 | ||
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| | 大小 | 類型 | 速度(MiB) | 時間 | |
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結論可否簡述工具做了什麼以及效能表現（與直接寫hdfs相較只損失了多少）
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好的，那我最近找時間再借一下機器做測試
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#1491
現在有時實做出 exporter 的實驗，目前有在 100GB 與 500GB 的情境下跑過 exporter 工具，在 100GB 的情況下沒有問題正常結束，但是 500GB 在中後期會如實驗中所敘述，發生 heap out of memory 的情況，目前的解法是變更 worker 的 heap 大小就可以正常執行。