The health diagnostics feature analyzes the health of cluster services and nodes to identify issues and suggest repairs. If a cluster fails, use the resulting report to understand its status, find root causes, and fix the problems to restore stable operation.
Usage notes
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The health diagnostics feature supports only DataLake, Dataflow, OLAP, DataServing, and custom clusters. To create one of these clusters, see Create a cluster.
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Health diagnostics helps locate issues and suggests repairs for your cluster. It supports diagnostics for Hive, HDFS, YARN, ZooKeeper, and nodes.
Initiate health diagnostics
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Go to the Monitoring and Diagnostics page.
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Log on to the E-MapReduce console.
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In the top navigation bar, select a region and a resource group.
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On the Clusters page, click the target cluster's ID in the Cluster ID column.
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Click the Monitoring and Diagnostics tab.
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Click the Health Diagnostics tab.
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Click Initiate Diagnostics. In the dialog box that opens, set the Time Range and click Start.
Once the diagnostics are complete, click View Report in the Actions column.