NFS Gateway Health Tests
NFS Gateway File Descriptors
This NFS Gateway health test checks that the number of file descriptors used does not rise above some percentage of the NFS Gateway file descriptor limit. A failure of this health test may indicate a bug in either Hadoop or Cloudera Manager. Contact Cloudera support. This test can be configured using the File Descriptor Monitoring Thresholds NFS Gateway monitoring setting.
Short Name: File Descriptors
| Property Name | Description | Template Name | Default Value | Unit |
|---|---|---|---|---|
| File Descriptor Monitoring Thresholds | The health test thresholds of the number of file descriptors used. Specified as a percentage of file descriptor limit. | nfsgateway_fd_thresholds | critical:70.0, warning:50.0 | PERCENT |
NFS Gateway Heap Dump Directory Free Space
This NFS Gateway health test checks that the filesystem containing the heap dump directory of this NFS Gateway has sufficient free space. This test can be configured using the Heap Dump Directory Free Space Monitoring Absolute Thresholds and Heap Dump Directory Free Space Monitoring Percentage Thresholds NFS Gateway monitoring settings.
Short Name: Heap Dump Directory Free Space
| Property Name | Description | Template Name | Default Value | Unit |
|---|---|---|---|---|
| Heap Dump Directory Free Space Monitoring Absolute Thresholds | The health test thresholds for monitoring of free space on the filesystem that contains this role's heap dump directory. | heap_dump_directory_free_space_absolute_thresholds | critical:5.36870912E9, warning:1.073741824E10 | BYTES |
| Heap Dump Directory Free Space Monitoring Percentage Thresholds | The health test thresholds for monitoring of free space on the filesystem that contains this role's heap dump directory. Specified as a percentage of the capacity on that filesystem. This setting is not used if a Heap Dump Directory Free Space Monitoring Absolute Thresholds setting is configured. | heap_dump_directory_free_space_percentage_thresholds | critical:never, warning:never | PERCENT |
NFS Gateway Host Health
This NFS Gateway health test factors in the health of the host upon which the NFS Gateway is running. A failure of this test means that the host running the NFS Gateway is experiencing some problem. See that host's status page for more details.This test can be enabled or disabled using the NFS Gateway Host Health Test NFS Gateway monitoring setting.
Short Name: Host Health
| Property Name | Description | Template Name | Default Value | Unit |
|---|---|---|---|---|
| NFS Gateway Host Health Test | When computing the overall NFS Gateway health, consider the host's health. | nfsgateway_host_health_enabled | true | no unit |
NFS Gateway Log Directory Free Space
This NFS Gateway health test checks that the filesystem containing the log directory of this NFS Gateway has sufficient free space. This test can be configured using the Log Directory Free Space Monitoring Absolute Thresholds and Log Directory Free Space Monitoring Percentage Thresholds NFS Gateway monitoring settings.
Short Name: Log Directory Free Space
| Property Name | Description | Template Name | Default Value | Unit |
|---|---|---|---|---|
| Log Directory Free Space Monitoring Absolute Thresholds | The health test thresholds for monitoring of free space on the filesystem that contains this role's log directory. | log_directory_free_space_absolute_thresholds | critical:5.36870912E9, warning:1.073741824E10 | BYTES |
| Log Directory Free Space Monitoring Percentage Thresholds | The health test thresholds for monitoring of free space on the filesystem that contains this role's log directory. Specified as a percentage of the capacity on that filesystem. This setting is not used if a Log Directory Free Space Monitoring Absolute Thresholds setting is configured. | log_directory_free_space_percentage_thresholds | critical:never, warning:never | PERCENT |
NFS Gateway Process Status
This NFS Gateway health test checks that the Cloudera Manager Agent on the NFS Gateway host is heart beating correctly and that the process associated with the NFS Gateway role is in the state expected by Cloudera Manager. A failure of this health test may indicate a problem with the NFS Gateway process, a lack of connectivity to the Cloudera Manager Agent on the NFS Gateway host, or a problem with the Cloudera Manager Agent. This test can fail either because the NFS Gateway has crashed or because the NFS Gateway will not start or stop in a timely fashion. Check the NFS Gateway logs for more details. If the test fails because of problems communicating with the Cloudera Manager Agent on the NFS Gateway host, check the status of the Cloudera Manager Agent by running /etc/init.d/cloudera-scm-agent status on the NFS Gateway host, or look in the Cloudera Manager Agent logs on the NFS Gateway host for more details. This test can be enabled or disabled using the NFS Gateway Process Health Test NFS Gateway monitoring setting.
Short Name: Process Status
| Property Name | Description | Template Name | Default Value | Unit |
|---|---|---|---|---|
| NFS Gateway Process Health Test | Enables the health test that the NFS Gateway's process state is consistent with the role configuration | nfsgateway_scm_health_enabled | true | no unit |
NFS Gateway Swap Memory Usage
This NFS Gateway health test checks the amount of swap memory in use by the role. A failure of this health test may indicate that your machine is overloaded. This test can be configured using the Process Swap Memory Thresholds monitoring settings.
Short Name: Swap Memory Usage
| Property Name | Description | Template Name | Default Value | Unit |
|---|---|---|---|---|
| Process Swap Memory Thresholds | The health test thresholds on the swap memory usage of the process. | process_swap_memory_thresholds | critical:never, warning:any | BYTES |
NFS Gateway Unexpected Exits
This NFS Gateway health test checks that the NFS Gateway has not recently exited unexpectedly. The test returns "Bad" health if the number of unexpected exits goes above a critical threshold. For example, if this test is configured with a critical threshold of 1, this test would return "Good" health if there have been no unexpected exits recently. If there has been 1 or more unexpected exits recently, this test would return "Bad" health. This test can be configured using the Unexpected Exits Thresholds and Unexpected Exits Monitoring Period NFS Gateway monitoring settings.
Short Name: Unexpected Exits
| Property Name | Description | Template Name | Default Value | Unit |
|---|---|---|---|---|
| Unexpected Exits Monitoring Period | The period to review when computing unexpected exits. | unexpected_exits_window | 5 | MINUTES |
| Unexpected Exits Thresholds | The health test thresholds for unexpected exits encountered within a recent period specified by the unexpected_exits_window configuration for the role. | unexpected_exits_thresholds | critical:any, warning:never | no unit |