Hello @Shubham.Kadam, Kindly update us here if you have any good news since I've encountered the same issue while applying the extension to MA with SIM Enabled (Without APM agent) R01-SMAX-NFS==> [Monitor-Task-Thread3] 20 May 2024 08:43:12,727 WARN MetricWriteHelper-Linux Monitor - The metric is not valid. Not reporting the metric to the machine agent. Name - inuse, Value - 0, Path - Server|Component:<TIER_ID>|Custom Metrics|Linux Monitor|sockUsedStats|ifrag|inuse, Qualifiers - AVERAGE, CURRENT, INDIVIDUAL R01-SMAX-NFS==> [Monitor-Task-Thread3] 20 May 2024 08:43:12,727 WARN MetricWriteHelper-Linux Monitor - The metric is not valid. Not reporting the metric to the machine agent. Name - inuse, Value - 23, Path - Server|Component:<TIER_ID>|Custom Metrics|Linux Monitor|sockUsedStats|tcp|inuse, Qualifiers - AVERAGE, CURRENT, INDIVIDUAL R01-SMAX-NFS==> [Monitor-Task-Thread3] 20 May 2024 08:43:12,727 WARN MetricWriteHelper-Linux Monitor - The metric is not valid. Not reporting the metric to the machine agent. Name - inuse, Value - 8, Path - Server|Component:<TIER_ID>|Custom Metrics|Linux Monitor|sockUsedStats|udp|inuse, Qualifiers - AVERAGE, CURRENT, INDIVIDUAL R01-SMAX-NFS==> [Monitor-Task-Thread3] 20 May 2024 08:43:12,727 WARN MetricWriteHelper-Linux Monitor - The metric is not valid. Not reporting the metric to the machine agent. Name - HeartBeat, Value - 1, Path - Server|Component:<TIER_ID>|Custom Metrics|Linux Monitor|HeartBeat, Qualifiers - AVERAGE, AVERAGE, INDIVIDUAL R01-SMAX-NFS==> [Monitor-Task-Thread1] 20 May 2024 08:43:12,822 ERROR NFSMountMetricsTask-Linux Monitor - Exception occurred collecting NFS I/O metrics java.lang.NullPointerException: null at com.appdynamics.extensions.linux.NFSMountMetricsTask.getMountIOStats(NFSMountMetricsTask.java:173) [?:?] at com.appdynamics.extensions.linux.NFSMountMetricsTask.run(NFSMountMetricsTask.java:66) [?:?] at com.appdynamics.extensions.executorservice.MonitorThreadPoolExecutor$TaskRunnable.run(MonitorThreadPoolExecutor.java:113) [?:?] at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:?] at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:?] at java.lang.Thread.run(Unknown Source) [?:?] R01-SMAX-NFS==> [Monitor-Task-Thread1] 20 May 2024 08:43:12,822 WARN MetricWriteHelper-Linux Monitor - The metric is not valid. Not reporting the metric to the machine agent. Name - Availability, Value - 0, Path - Server|Component:<TIER_ID>|Custom Metrics|Linux Monitor|mountedNFSStatus|NFS1|Availability, Qualifiers - AVERAGE, AVERAGE, INDIVIDUAL R01-SMAX-NFS==> [Monitor-Task-Thread2] 20 May 2024 08:43:12,822 INFO LinuxMonitorTask-Linux Monitor - Completed the Linux Monitoring task R01-SMAX-NFS==> [Monitor-Task-Thread2] 20 May 2024 08:43:12,822 INFO LinuxMonitorTask-Linux Monitor - All tasks for Linux Monitor finished R01-SMAX-NFS==> [Monitor-Task-Thread2] 20 May 2024 08:43:12,822 WARN MetricWriteHelper-Linux Monitor - The metric is not valid. Not reporting the metric to the machine agent. Name - Metrics Uploaded, Value - 1, Path - Server|Component:<TIER_ID>|Custom Metrics|Linux Monitor|Metrics Uploaded, Qualifiers - AVERAGE, AVERAGE, COLLECTIVE R01-SMAX-NFS==> [Monitor-Task-Thread2] 20 May 2024 08:43:12,822 INFO MetricWriteHelper-Linux Monitor - Finished executing Linux Monitor at 2024-05-20 08:43:12 EDT R01-SMAX-NFS==> [Monitor-Task-Thread2] 20 May 2024 08:43:12,822 INFO MetricWriteHelper-Linux Monitor - Total time taken to execute Linux Monitor : 165 ms R01-SMAX-NFS==> [Monitor-Task-Thread2] 20 May 2024 08:43:12,822 INFO ABaseMonitor - Finished processing all tasks in the job for Linux Monitor Thanks, Yousef ... View more