spark中日志清理

spark开启history-server以后，app日志会保存在制定的目录下，app 若yarn开启日志收集，也须要进行app-logs的自动清理spa ## yarn日志收集 yarn.log-aggregation.retain-seconds = 1209600 yarn.log-aggregation.retain-check-interval-seconds = 86400 ##

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