Statistics (Kudu 1.0.1 API)

java.lang.Object
- org.apache.kudu.client.Statistics

```
@InterfaceAudience.Public
@InterfaceStability.Evolving
public class Statistics
extends Object
```
A Statistics belongs to a specific AsyncKuduClient. It stores client-level statistics including number of operations, number of bytes written, number of rpcs. It is created along with the client's creation, and can be obtained through AsyncKuduClient or KuduClient's getStatistics method. Once obtained, an instance of this class can be used directly.
This class is thread-safe. The user can use it anywhere to get statistics of this client.
The method toString() can be useful to get a dump of all the metrics aggregated for all the tablets.

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class Statistics.Statistic
The statistic enum to pass when querying.

Nested Classes
Modifier and Type	Class and Description
`static class`	`Statistics.Statistic` The statistic enum to pass when querying.

Constructor Summary

Constructors
Constructor and Description

Statistics()

Constructors
Constructor and Description
`Statistics()`

Method Summary

Methods
Modifier and Type	Method and Description
`long`	`getClientStatistic(Statistics.Statistic statistic)` Get the statistic count of the whole client.
`String`	`getTableName(String tabletId)` Get table name of the given tablet id.
`Set<String>`	`getTableSet()` Get the set of tables which have been written into by this client, which have statistics information.
`long`	`getTableStatistic(String tableName, Statistics.Statistic statistic)` Get the statistic count of this table.
`Set<String>`	`getTabletSet()` Get the set of tablets which have been written into by this client, which have statistics information.
`long`	`getTabletStatistic(String tabletId, Statistics.Statistic statistic)` Get the statistic count of this tablet.
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - Statistics
```
public Statistics()
```
- Method Detail
  - getTabletStatistic
```
public long getTabletStatistic(String tabletId,
                      Statistics.Statistic statistic)
```
    Get the statistic count of this tablet. If the specified tablet doesn't have statistics, 0 will be returned.
    
    Parameters:
    tabletId - the tablet's id
    statistic - the statistic type to get
    
    Returns:
    the value of the statistic
  - getTableStatistic
```
public long getTableStatistic(String tableName,
                     Statistics.Statistic statistic)
```
    Get the statistic count of this table.
    
    Parameters:
    tableName - the table's name
    statistic - the statistic type to get
    
    Returns:
    the value of the statistic
  - getClientStatistic
```
public long getClientStatistic(Statistics.Statistic statistic)
```
    Get the statistic count of the whole client.
    
    Parameters:
    statistic - the statistic type to get
    
    Returns:
    the value of the statistic
  - getTabletSet
```
public Set<String> getTabletSet()
```
    Get the set of tablets which have been written into by this client, which have statistics information.
    
    Returns:
    set of tablet ids
  - getTableSet
```
public Set<String> getTableSet()
```
    Get the set of tables which have been written into by this client, which have statistics information.
    
    Returns:
    set of table names
  - getTableName
```
public String getTableName(String tabletId)
```
    Get table name of the given tablet id. If the tablet has no statistics, null will be returned.
    
    Parameters:
    tabletId - the tablet's id
    
    Returns:
    table name
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class Statistics

Nested Class Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Statistics

Method Detail

getTabletStatistic

getTableStatistic

getClientStatistic

getTabletSet

getTableSet

getTableName

toString