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A comment on Uber Engineering Tricks of the Trade: Tuning JVM Memory for Large-Scale Services. Parent comment

Re:Uber Engineering Tricks of the Trade: Tuning JVM Memory f... by vsto on Tuesday May 18, 2021 @05:36PM (#27201529)
It is Hadoop that requires (mostly) Java 8 and Java 11 (runtime only). https://cwiki.apache.org/confluence/display/HADOOP/Hadoop+Ja...
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Re:Uber Engineering Tricks of the Trade: Tuning JVM Memory f... by tomnipotent on Wednesday May 19, 2021 @04:37AM (#27206003)
That's for Hadoop 3 - Uber is on CDH 5 last I read, which has min support for Java 7 and it sounds like that's what they're using if the CMS GC was being used (unless it just happened to work better for them in Java 8+).
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