Hadoop - Cluster Administration
You want to correlate Ambari metrics with logs to troubleshoot intermittent HDFS failures. Which approach is best?
You want to correlate Ambari metrics with logs to troubleshoot intermittent HDFS failures. Which approach is best?
hard📝 Application Q9 of 15
Step-by-Step Solution
Solution:
Step 1: Understand troubleshooting with metrics and logs
Combining metrics and logs by timestamp helps find root causes.Step 2: Identify best practice
Exporting metrics from Ambari Metrics System and matching with logs is effective.Step 3: Eliminate wrong options
Ignoring logs misses details, restarting blindly doesn't diagnose, disabling metrics loses data.Final Answer:
Use Ambari Metrics System to export metrics and combine with log timestamps -> Option BQuick Check:
Correlate metrics and logs for troubleshooting [OK]
Quick Trick: Match metrics timestamps with logs for root cause [OK]
Common Mistakes:
- Ignoring logs
- Restarting without diagnosis
- Disabling metrics collection
Master "Cluster Administration" in Hadoop
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