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提高blaze+celeborn场景下的稳定度并优化执行性能 #659

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ziyangRen opened this issue Nov 25, 2024 · 0 comments

ziyangRen commented Nov 25, 2024

blaze+celeborn场景下，我使用了更多的内存，但性能反而劣化了接近一倍，具体来说：

单独使用celeborn时，使用 --executor-memory=10G 可以正常运行
blaze+celborn场景下，我使用： -- conf spark.executor. MemoryOverhead = 6g, --executor-memory=6G, 会遇到OOM问题，以及shuffle push数据失败问题，为此我调高了：--executor-memory=10G，spark.celeborn.client.push.buffer.max.size=32K。此时任务可以成功运行，并且配置了比直接使用celeborn更多的内存，但性能劣化了接近一倍：

spark+celeborn：

spark+blaze+celeborn：

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