Reducing GC pause time at Web application servers

本論文では,Webアプリケーションが稼動するJVMクラスタ環境において,Full GCが発生しているJVMの数を高々1個に抑え,Full GC中のJVMには新規Webリクエストの転送を停止することにより,長時間のFull GC停止時間によるアプリケーションへの影響を削減する技術について検討する.さらに、JVMのFull GC中に別のJVMのFull GCが開始しないように,空き容量が後述する計算式よる閾値以下になったタイミングでFull GCを起動する.これらの手法により、Full GCによるWebアプリケーションの応答時間の劣化やDBの長時間ロックといった問題を解消することができる.

By: Yohei Ueda, Hiroshi Inoue

Published in: RT0868 in 2009


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