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メッセージが同時に来た場合にクラッシュする #42

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phenylshima opened this issue Feb 9, 2022 · 3 comments
Open

メッセージが同時に来た場合にクラッシュする #42

phenylshima opened this issue Feb 9, 2022 · 3 comments
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@phenylshima phenylshima added the bug Something isn't working label Feb 9, 2022
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phenylshima commented Feb 11, 2022 •
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no-context-vutdのnode-cronを疑っています
kelektiv/node-cron#232
CPUやメモリが逼迫すると発生することがあるというコメントもありますし。

@phenylshima phenylshima mentioned this issue Feb 16, 2022
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phenylshima commented Feb 28, 2022 •
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v2.0.0をデプロイした後で音声合成するとこの問題が再現した。
topコマンドでCPU資源を消費しているプロセスを調べたところ、kswapdとgoogle_osconfigであった。
また、vmstatコマンドで内訳を調べると、ioのbi、すなわちストレージからの読み込みが大きく、cpuのwaが80以上と高いこともわかった。
これらから、この事象の原因はメモリの逼迫だと推測する。

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Idle時

  • vutd-shovel CPU0.03%~0.1% Memory181MiB
  • postgres CPU0.00%~0.01% Memory69.78MiB

合成中

  • vutd-shovel CPU100% Memory670.7MiB

再生中

  • vutd-shovel 5% Memory179MiB

@phenylshima phenylshima mentioned this issue Mar 1, 2022
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