Impala StateStore Health Tests
Impala StateStore Audit Pipeline Test
This Impala StateStore health test checks that the Auditing for the Impala StateStore role is getting processed correctly and is not blocked. A failure of this health test may indicate a problem with the audit pipeline of Impala StateStore process. This test can fail either because the Cloudera Audit Server is not accepting audits, or the Cloudera Manager Agent on the Impala StateStore host isn't able to send audits because of some network issue. Check the Cloudera Manager Agent logs and Cloudera Audit Server logs for more details. This test can be enabled or disabled using the Navigator Audit Pipeline Health Check Impala StateStore monitoring setting.
Short Name: Audit Pipeline Test
| Property Name | Description | Template Name | Default Value | Unit |
|---|---|---|---|---|
| Monitoring Period For Audit Failures | The period to review when checking if audits are blocked and not getting processed. | mgmt_navigator_failure_window | 20 | MINUTES |
| Navigator Audit Failure Thresholds | The health test thresholds for failures encountered when monitoring audits within a recent period specified by the mgmt_navigator_failure_window configuration for the role. The value that can be specified for this threshold is the number of bytes of audits data that is left to be sent to audit server. | mgmt_navigator_failure_thresholds | critical:any, warning:never | BYTES |
| Navigator Audit Pipeline Health Check | Enable test of audit events processing pipeline. This will test if audit events are not getting processed by Audit Server for a role that generates audit. | mgmt_navigator_status_check_enabled | true | no unit |
Impala StateStore File Descriptors
This Impala StateStore health test checks that the number of file descriptors used does not rise above some percentage of the Impala StateStore 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 Impala StateStore 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. | statestore_fd_thresholds | critical:70.0, warning:50.0 | PERCENT |
Impala StateStore Heap Dump Directory Free Space
This Impala StateStore health test checks that the filesystem containing the heap dump directory of this Impala StateStore 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 Impala StateStore 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 |
Impala StateStore Host Health
This Impala StateStore health test factors in the health of the host upon which the Impala StateStore is running. A failure of this test means that the host running the Impala StateStore is experiencing some problem. See that host's status page for more details.This test can be enabled or disabled using the Impala StateStore Host Health Test Impala StateStore monitoring setting.
Short Name: Host Health
| Property Name | Description | Template Name | Default Value | Unit |
|---|---|---|---|---|
| Impala StateStore Host Health Test | When computing the overall Impala StateStore health, consider the host's health. | statestore_host_health_enabled | true | no unit |
Impala StateStore Log Directory Free Space
This Impala StateStore health test checks that the filesystem containing the log directory of this Impala StateStore 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 Impala StateStore 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 |
Impala StateStore Process Status
This Impala StateStore health test checks that the Cloudera Manager Agent on the Impala StateStore host is heart beating correctly and that the process associated with the Impala StateStore role is in the state expected by Cloudera Manager. A failure of this health test may indicate a problem with the Impala StateStore process, a lack of connectivity to the Cloudera Manager Agent on the Impala StateStore host, or a problem with the Cloudera Manager Agent. This test can fail either because the Impala StateStore has crashed or because the Impala StateStore will not start or stop in a timely fashion. Check the Impala StateStore logs for more details. If the test fails because of problems communicating with the Cloudera Manager Agent on the Impala StateStore host, check the status of the Cloudera Manager Agent by running /etc/init.d/cloudera-scm-agent status on the Impala StateStore host, or look in the Cloudera Manager Agent logs on the Impala StateStore host for more details. This test can be enabled or disabled using the Impala StateStore Process Health Test Impala StateStore monitoring setting.
Short Name: Process Status
| Property Name | Description | Template Name | Default Value | Unit |
|---|---|---|---|---|
| Impala StateStore Process Health Test | Enables the health test that the Impala StateStore's process state is consistent with the role configuration | statestore_scm_health_enabled | true | no unit |
Impala StateStore Resident Set Size
This Impala StateStore health test checks that the size of the resident set does not rise above a configured threshold value. A failure of this health test may indicates that the Impala StateStore process is consuming more memory than expected. It is possible that that unexpected memory consumption may lead to swapping and decreased performance for processes running on the same host as this Impala StateStore. Increased Impala StateStore memory consumption may be caused by an increased workload on the Impala service, or by a bug in the Impala StateStore software. To avoid failures of this health test, free up additional memory for this Impala StateStore process and increase the Resident Set Size Thresholds monitoring setting. This test can be configured using the Resident Set Size Thresholds Impala StateStore monitoring setting.
Short Name: Resident Set Size
| Property Name | Description | Template Name | Default Value | Unit |
|---|---|---|---|---|
| Resident Set Size Thresholds | The health test thresholds on the resident size of the process. | process_resident_set_size_thresholds | critical:never, warning:never | BYTES |
Impala StateStore Swap Memory Usage
This Impala StateStore 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. This takes precedence over the host level threshold. | process_swap_memory_thresholds | critical:never, warning:200.0 | BYTES |
Impala StateStore Unexpected Exits
This Impala StateStore health test checks that the Impala StateStore has not recently exited unexpectedly. The test returns "Bad" health if the number of unexpected exits exceeds a critical threshold. For example, if this test is configured with a critical threshold of 1, this test returns "Good" health if there have been no unexpected exits recently. If 1 or more unexpected exits occured recently, this test returns "Bad" health. The test also indicates whether any of the exits were caused by an OutOfMemory error if the Cloudera Manager Kill When Out of Memory monitoring setting is enabled. This test can be configured using the Unexpected Exits Thresholds and Unexpected Exits Monitoring Period Impala StateStore 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 |
Impala StateStore Web Server Status
This health test checks that the role's web server is responding quickly to requests by the Cloudera Manager Agent, and that the Cloudera Manager Agent can collect metrics from the web server. Failure of this health test may indicate a problem with the web server of the Impala StateStore, a misconfiguration of the Impala StateStore, or a problem with the Cloudera Manager Agent. Consult the Cloudera Manager Agent logs and the logs of the Impala StateStore for more detail. If the test failure message indicates a communication problem, the Cloudera Manager Agent's HTTP requests to the Impala StateStore's web server are failing or timing out. If the test's failure message indicates an unexpected response, the Impala StateStore's web server responded to the Cloudera Manager Agent's request, but the response could not be interpreted for some reason. This test can be configured using the Web Metric Collection Impala StateStore monitoring setting.
Short Name: Web Server Status
| Property Name | Description | Template Name | Default Value | Unit |
|---|---|---|---|---|
| Web Metric Collection | Enables the health test that the Cloudera Manager Agent can successfully contact and gather metrics from the web server. | statestore_web_metric_collection_enabled | true | no unit |
| Web Metric Collection Duration | The health test thresholds on the duration of the metrics request to the web server. | statestore_web_metric_collection_thresholds | critical:never, warning:10000.0 | MILLISECONDS |
