StrGenSpoutHdfsBoltTopo (Storm 2.5.0 API)

java.lang.Object
- org.apache.storm.perf.StrGenSpoutHdfsBoltTopo

```
public class StrGenSpoutHdfsBoltTopo
extends Object
```
This topo helps measure speed of writing to Hdfs.
Spout generates fixed length random strings.
Bolt writes to Hdfs.

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class StrGenSpoutHdfsBoltTopo.LineWriter

Nested Classes
Modifier and Type	Class and Description
`static class`	`StrGenSpoutHdfsBoltTopo.LineWriter`

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`BOLT_ID`
`static String`	`BOLT_NUM`
`static int`	`DEFAULT_BOLT_NUM`
`static int`	`DEFAULT_HDFS_BATCH`
`static int`	`DEFAULT_SPOUT_NUM`
`static String`	`HDFS_BATCH`
`static String`	`HDFS_PATH`
`static String`	`HDFS_URI`
`static String`	`SPOUT_ID`
`static String`	`SPOUT_NUM`
`static String`	`TOPOLOGY_NAME`

Constructor Summary

Constructors
Constructor and Description

StrGenSpoutHdfsBoltTopo()

Constructors
Constructor and Description
`StrGenSpoutHdfsBoltTopo()`

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static void`	`main(String[] args)` Spout generates random strings and HDFS bolt writes them to a text file.

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

- Field Detail
  - SPOUT_NUM
```
public static final String SPOUT_NUM
```
    See Also:
    
    Constant Field Values
  - BOLT_NUM
```
public static final String BOLT_NUM
```
    See Also:
    
    Constant Field Values
  - HDFS_URI
```
public static final String HDFS_URI
```
    See Also:
    
    Constant Field Values
  - HDFS_PATH
```
public static final String HDFS_PATH
```
    See Also:
    
    Constant Field Values
  - HDFS_BATCH
```
public static final String HDFS_BATCH
```
    See Also:
    
    Constant Field Values
  - DEFAULT_SPOUT_NUM
```
public static final int DEFAULT_SPOUT_NUM
```
    See Also:
    
    Constant Field Values
  - DEFAULT_BOLT_NUM
```
public static final int DEFAULT_BOLT_NUM
```
    See Also:
    
    Constant Field Values
  - DEFAULT_HDFS_BATCH
```
public static final int DEFAULT_HDFS_BATCH
```
    See Also:
    
    Constant Field Values
  - TOPOLOGY_NAME
```
public static final String TOPOLOGY_NAME
```
    See Also:
    
    Constant Field Values
  - SPOUT_ID
```
public static final String SPOUT_ID
```
    See Also:
    
    Constant Field Values
  - BOLT_ID
```
public static final String BOLT_ID
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - StrGenSpoutHdfsBoltTopo
```
public StrGenSpoutHdfsBoltTopo()
```
- Method Detail
  - main
```
public static void main(String[] args)
                 throws Exception
```
    Spout generates random strings and HDFS bolt writes them to a text file.
    
    Throws:
    
    Exception

Class StrGenSpoutHdfsBoltTopo

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

SPOUT_NUM

BOLT_NUM

HDFS_URI

HDFS_PATH

HDFS_BATCH

DEFAULT_SPOUT_NUM

DEFAULT_BOLT_NUM

DEFAULT_HDFS_BATCH

TOPOLOGY_NAME

SPOUT_ID

BOLT_ID

Constructor Detail

StrGenSpoutHdfsBoltTopo

Method Detail

main