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8213da50
DolphinScheduler
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前往新版Gitcode,体验更适合开发者的 AI 搜索 >>
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8213da50
编写于
6月 28, 2020
作者:
C
CalvinKirs
提交者:
GitHub
6月 28, 2020
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差异文件
[WIP] load balance #3054 (#3057)
* Load balancing abstract * code smell * lower weight select
上级
f1632e22
变更
4
隐藏空白更改
内联
并排
Showing
4 changed file
with
51 addition
and
27 deletion
+51
-27
dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/dispatch/host/assign/AbstractSelector.java
.../server/master/dispatch/host/assign/AbstractSelector.java
+45
-0
dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/dispatch/host/assign/LowerWeightRoundRobin.java
...er/master/dispatch/host/assign/LowerWeightRoundRobin.java
+2
-2
dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/dispatch/host/assign/RandomSelector.java
...er/server/master/dispatch/host/assign/RandomSelector.java
+2
-13
dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/dispatch/host/assign/RoundRobinSelector.java
...erver/master/dispatch/host/assign/RoundRobinSelector.java
+2
-12
未找到文件。
dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/dispatch/host/assign/AbstractSelector.java
0 → 100644
浏览文件 @
8213da50
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package
org.apache.dolphinscheduler.server.master.dispatch.host.assign
;
import
org.apache.dolphinscheduler.common.utils.CollectionUtils
;
import
java.util.Collection
;
/**
* AbstractSelector
*/
public
abstract
class
AbstractSelector
<
T
>
implements
Selector
<
T
>{
@Override
public
T
select
(
Collection
<
T
>
source
)
{
if
(
CollectionUtils
.
isEmpty
(
source
))
{
throw
new
IllegalArgumentException
(
"Empty source."
);
}
/**
* if only one , return directly
*/
if
(
source
.
size
()
==
1
)
{
return
(
T
)
source
.
toArray
()[
0
];
}
return
doSelect
(
source
);
}
protected
abstract
T
doSelect
(
Collection
<
T
>
source
);
}
dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/dispatch/host/assign/LowerWeightRoundRobin.java
浏览文件 @
8213da50
...
...
@@ -22,7 +22,7 @@ import java.util.Collection;
/**
* lower weight round robin
*/
public
class
LowerWeightRoundRobin
implements
Selector
<
HostWeight
>{
public
class
LowerWeightRoundRobin
extends
Abstract
Selector
<
HostWeight
>{
/**
* select
...
...
@@ -30,7 +30,7 @@ public class LowerWeightRoundRobin implements Selector<HostWeight>{
* @return HostWeight
*/
@Override
public
HostWeight
s
elect
(
Collection
<
HostWeight
>
sources
){
public
HostWeight
doS
elect
(
Collection
<
HostWeight
>
sources
){
int
totalWeight
=
0
;
int
lowWeight
=
0
;
HostWeight
lowerNode
=
null
;
...
...
dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/dispatch/host/assign/RandomSelector.java
浏览文件 @
8213da50
...
...
@@ -24,23 +24,12 @@ import java.util.Random;
* random selector
* @param <T> T
*/
public
class
RandomSelector
<
T
>
implements
Selector
<
T
>
{
public
class
RandomSelector
<
T
>
extends
Abstract
Selector
<
T
>
{
private
final
Random
random
=
new
Random
();
@Override
public
T
select
(
final
Collection
<
T
>
source
)
{
if
(
source
==
null
||
source
.
size
()
==
0
)
{
throw
new
IllegalArgumentException
(
"Empty source."
);
}
/**
* if only one , return directly
*/
if
(
source
.
size
()
==
1
)
{
return
(
T
)
source
.
toArray
()[
0
];
}
public
T
doSelect
(
final
Collection
<
T
>
source
)
{
int
size
=
source
.
size
();
/**
...
...
dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/dispatch/host/assign/RoundRobinSelector.java
浏览文件 @
8213da50
...
...
@@ -26,22 +26,12 @@ import java.util.concurrent.atomic.AtomicInteger;
* @param <T> T
*/
@Service
public
class
RoundRobinSelector
<
T
>
implements
Selector
<
T
>
{
public
class
RoundRobinSelector
<
T
>
extends
Abstract
Selector
<
T
>
{
private
final
AtomicInteger
index
=
new
AtomicInteger
(
0
);
@Override
public
T
select
(
Collection
<
T
>
source
)
{
if
(
source
==
null
||
source
.
size
()
==
0
)
{
throw
new
IllegalArgumentException
(
"Empty source."
);
}
/**
* if only one , return directly
*/
if
(
source
.
size
()
==
1
)
{
return
(
T
)
source
.
toArray
()[
0
];
}
public
T
doSelect
(
Collection
<
T
>
source
)
{
int
size
=
source
.
size
();
/**
...
...
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