HealthChecker (Apache HBase 1.2.12 API)

```
 class HealthChecker
extends Object
```
A utility for executing an external script that checks the health of the node. An example script can be found at src/main/sh/healthcheck/healthcheck.sh in the hbase-examples module.

Nested Classes
Modifier and Type	Class and Description
`(package private) static class`	`HealthChecker.HealthCheckerExitStatus`

Fields
Modifier and Type	Field and Description
`private static String`	`ERROR_PATTERN` Pattern used for searching in the output of the node health script
`private String`	`exceptionStackTrace`
`private String`	`healthCheckScript`
`private static org.apache.commons.logging.Log`	`LOG`
`private long`	`scriptTimeout`
`private org.apache.hadoop.util.Shell.ShellCommandExecutor`	`shexec`

Constructors
Constructor and Description
`HealthChecker()`

Methods
Modifier and Type	Method and Description
`HealthReport`	`checkHealth()`
`private String`	`getHealthReport(HealthChecker.HealthCheckerExitStatus status)`
`private boolean`	`hasErrors(String output)`
`void`	`init(String location, long timeout)` Initialize.

private static final org.apache.commons.logging.Log LOG

private org.apache.hadoop.util.Shell.ShellCommandExecutor shexec

public void init(String location,
        long timeout)

Initialize.

private boolean hasErrors(String output)

private String getHealthReport(HealthChecker.HealthCheckerExitStatus status)

Class HealthChecker