Github user actuaryzhang commented on the issue: https://github.com/apache/spark/pull/16344 Could anybody help me understand what's causing this test to fail? I see several other ML PR failing as well, with the same error message like below: > Error instrumenting class:org.apache.spark.deploy.mesos.ui.MesosClusterUI Error instrumenting class:org.apache.spark.mllib.regression.IsotonicRegressionModel$SaveLoadV1_0$ > Was this related to the recent commit on instrumentation #15671? How do I fix this? Thanks! @zhengruifeng @yanboliang
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