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73073387
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体验新版 GitCode,发现更多精彩内容 >>
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73073387
编写于
9月 04, 2013
作者:
K
Kohsuke Kawaguchi
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
Still a work in progress
上级
08a1fc39
变更
5
隐藏空白更改
内联
并排
Showing
5 changed file
with
91 addition
and
155 deletion
+91
-155
core/src/main/java/hudson/model/Computer.java
core/src/main/java/hudson/model/Computer.java
+3
-4
core/src/main/java/hudson/model/Executor.java
core/src/main/java/hudson/model/Executor.java
+47
-19
core/src/main/java/hudson/model/OneOffExecutor.java
core/src/main/java/hudson/model/OneOffExecutor.java
+1
-24
core/src/main/java/hudson/model/Queue.java
core/src/main/java/hudson/model/Queue.java
+39
-107
core/src/main/java/hudson/slaves/NodeProvisioner.java
core/src/main/java/hudson/slaves/NodeProvisioner.java
+1
-1
未找到文件。
core/src/main/java/hudson/model/Computer.java
浏览文件 @
73073387
...
...
@@ -718,7 +718,6 @@ public /*transient*/ abstract class Computer extends Actionable implements Acces
for
(
Integer
number
:
availableNumbers
)
{
Executor
e
=
new
Executor
(
this
,
number
);
e
.
start
();
executors
.
add
(
e
);
}
}
...
...
@@ -847,7 +846,7 @@ public /*transient*/ abstract class Computer extends Actionable implements Acces
*/
protected
boolean
isAlive
()
{
for
(
Executor
e
:
executors
)
if
(
e
.
isA
l
ive
())
if
(
e
.
isA
ct
ive
())
return
true
;
return
false
;
}
...
...
@@ -1015,8 +1014,8 @@ public /*transient*/ abstract class Computer extends Actionable implements Acces
* Starts executing a fly-weight task.
*/
/*package*/
final
void
startFlyWeightTask
(
WorkUnit
p
)
{
OneOffExecutor
e
=
new
OneOffExecutor
(
this
,
p
);
e
.
start
();
OneOffExecutor
e
=
new
OneOffExecutor
(
this
);
e
.
start
(
p
);
oneOffExecutors
.
add
(
e
);
}
...
...
core/src/main/java/hudson/model/Executor.java
浏览文件 @
73073387
...
...
@@ -87,12 +87,18 @@ public class Executor extends Thread implements ModelObject {
*/
private
volatile
Queue
.
Executable
executable
;
/**
* When {@link Queue} allocates a work for this executor, this field is set
* and the executor is {@linkplain Thread#start() started}.
*/
private
volatile
WorkUnit
workUnit
;
private
Throwable
causeOfDeath
;
private
boolean
induceDeath
;
private
volatile
boolean
started
;
/**
* When the executor is interrupted, we allow the code that interrupted the thread to override the
* result code it prefers.
...
...
@@ -183,7 +189,9 @@ public class Executor extends Thread implements ModelObject {
try
{
finishTime
=
System
.
currentTimeMillis
();
while
(
shouldRun
())
{
MAIN:
do
{
executable
=
null
;
workUnit
=
null
;
interruptStatus
=
null
;
...
...
@@ -200,7 +208,7 @@ public class Executor extends Thread implements ModelObject {
// clear the interrupt flag as a precaution.
// sometime an interrupt aborts a build but without clearing the flag.
// see issue #1583
if
(
Thread
.
interrupted
())
continue
;
if
(
Thread
.
interrupted
())
break
MAIN
;
if
(
induceDeath
)
throw
new
ThreadDeath
();
SubTask
task
;
...
...
@@ -208,8 +216,8 @@ public class Executor extends Thread implements ModelObject {
// transition from idle to building.
// perform this state change as an atomic operation wrt other queue operations
synchronized
(
queue
)
{
workUnit
=
grabJob
();
workUnit
.
setExecutor
(
this
);
queue
.
onStartExecuting
(
this
);
if
(
LOGGER
.
isLoggable
(
FINE
))
LOGGER
.
log
(
FINE
,
getName
()+
" grabbed "
+
workUnit
+
" from queue"
);
task
=
workUnit
.
work
;
...
...
@@ -221,10 +229,10 @@ public class Executor extends Thread implements ModelObject {
LOGGER
.
log
(
FINE
,
getName
()+
" is going to execute "
+
executable
);
}
catch
(
IOException
e
)
{
LOGGER
.
log
(
Level
.
SEVERE
,
"Executor threw an exception"
,
e
);
continue
;
break
MAIN
;
}
catch
(
InterruptedException
e
)
{
LOGGER
.
log
(
FINE
,
getName
()+
" interrupted"
,
e
);
continue
;
break
MAIN
;
}
Throwable
problems
=
null
;
...
...
@@ -263,12 +271,16 @@ public class Executor extends Thread implements ModelObject {
workUnit
.
context
.
synchronizeEnd
(
executable
,
problems
,
finishTime
-
startTime
);
}
catch
(
InterruptedException
e
)
{
workUnit
.
context
.
abort
(
e
);
continue
;
break
MAIN
;
}
finally
{
workUnit
.
setExecutor
(
null
);
}
}
}
}
while
(
false
);
// this pointless do-while allows "break" to come here
// let this thread die and be replaced by a fresh unstarted instance
owner
.
removeExecutor
(
this
);
}
catch
(
RuntimeException
e
)
{
causeOfDeath
=
e
;
throw
e
;
...
...
@@ -286,17 +298,6 @@ public class Executor extends Thread implements ModelObject {
interrupt
();
}
/**
* Returns true if we should keep going.
*/
protected
boolean
shouldRun
()
{
return
Jenkins
.
getInstance
()
!=
null
&&
!
Jenkins
.
getInstance
().
isTerminating
();
}
protected
WorkUnit
grabJob
()
throws
InterruptedException
{
return
queue
.
pop
();
}
/**
* Returns the current {@link hudson.model.Queue.Task} this executor is running.
*
...
...
@@ -369,6 +370,17 @@ public class Executor extends Thread implements ModelObject {
return
executable
!=
null
;
}
public
boolean
isActive
()
{
return
!
started
||
isAlive
();
}
/**
* Returns true if this executor is waiting for a task to execute.
*/
public
boolean
isParking
()
{
return
!
started
;
}
/**
* If this thread dies unexpectedly, obtain the cause of the failure.
*
...
...
@@ -477,6 +489,23 @@ public class Executor extends Thread implements ModelObject {
return
eta
;
}
/**
* Can't start executor like you normally start a thread.
*
* @see #start(WorkUnit)
*/
@Override
public
synchronized
void
start
()
{
throw
new
UnsupportedOperationException
();
}
/*protected*/
synchronized
void
start
(
WorkUnit
task
)
{
this
.
workUnit
=
task
;
super
.
start
();
started
=
true
;
}
/**
* @deprecated as of 1.489
* Use {@link #doStop()}.
...
...
@@ -588,5 +617,4 @@ public class Executor extends Thread implements ModelObject {
private
static
final
ThreadLocal
<
Executor
>
IMPERSONATION
=
new
ThreadLocal
<
Executor
>();
private
static
final
Logger
LOGGER
=
Logger
.
getLogger
(
Executor
.
class
.
getName
());
}
core/src/main/java/hudson/model/OneOffExecutor.java
浏览文件 @
73073387
...
...
@@ -24,7 +24,6 @@
package
hudson.model
;
import
hudson.model.Queue.FlyweightTask
;
import
hudson.model.queue.WorkUnit
;
/**
* {@link Executor} that's temporarily added to carry out tasks that doesn't consume
...
...
@@ -34,30 +33,8 @@ import hudson.model.queue.WorkUnit;
* @see FlyweightTask
*/
public
class
OneOffExecutor
extends
Executor
{
private
WorkUnit
work
;
public
OneOffExecutor
(
Computer
owner
,
WorkUnit
work
)
{
public
OneOffExecutor
(
Computer
owner
)
{
super
(
owner
,-
1
);
this
.
work
=
work
;
}
@Override
protected
boolean
shouldRun
()
{
// TODO: consulting super.shouldRun() here means we'll lose the work if it gets scheduled
// when super.shouldRun() returns false.
return
super
.
shouldRun
()
&&
work
!=
null
;
}
public
WorkUnit
getAssignedWorkUnit
()
{
return
work
;
}
@Override
protected
WorkUnit
grabJob
()
throws
InterruptedException
{
WorkUnit
r
=
super
.
grabJob
();
assert
r
==
work
;
work
=
null
;
return
r
;
}
@Override
...
...
core/src/main/java/hudson/model/Queue.java
浏览文件 @
73073387
...
...
@@ -227,22 +227,15 @@ public class Queue extends ResourceController implements Saveable {
* This is a job offer from the queue to an executor.
*
* <p>
*
An idle executor (that calls {@link Queue#pop()} creates
*
a new {@link JobOffer} and gets itself {@linkplain Queue#parked parked},
*
and we'll eventually hand out an {@link #workUnit} to build
.
*
For each idle executor, this gets created to allow the scheduling logic
*
to assign a work. Once a work is assigned, the executor actually gets
*
started to carry out the task in question
.
*/
public
class
JobOffer
extends
MappingWorksheet
.
ExecutorSlot
{
public
final
Executor
executor
;
/**
* Used to wake up an executor, when it has an offered
* {@link Project} to build.
*/
private
final
OneShotEvent
event
=
new
OneShotEvent
(
Queue
.
this
);
/**
* The work unit that this {@link Executor} is going to handle.
* (Or null, in which case event is used to trigger a queue maintenance.)
*/
private
WorkUnit
workUnit
;
...
...
@@ -254,7 +247,8 @@ public class Queue extends ResourceController implements Saveable {
protected
void
set
(
WorkUnit
p
)
{
assert
this
.
workUnit
==
null
;
this
.
workUnit
=
p
;
event
.
signal
();
assert
executor
.
isParking
();
executor
.
start
(
workUnit
);
}
@Override
...
...
@@ -313,7 +307,7 @@ public class Queue extends ResourceController implements Saveable {
this
.
loadBalancer
=
loadBalancer
.
sanitize
();
// if all the executors are busy doing something, then the queue won't be maintained in
// timely fashion, so use another thread to make sure it happens.
new
MaintainTask
(
this
);
new
MaintainTask
(
this
)
.
periodic
()
;
}
public
LoadBalancer
getLoadBalancer
()
{
...
...
@@ -903,94 +897,16 @@ public class Queue extends ResourceController implements Saveable {
}
/**
* Called
by the executor to fetch something to build nex
t.
*
<p>
* This m
ethod blocks until a next project becomes buildabl
e.
* Called
when the executor actually starts executing the assigned work uni
t.
*
* This m
oves the task from the pending state to the "left the queue" stat
e.
*/
public
synchronized
WorkUnit
pop
()
throws
InterruptedException
{
final
Executor
exec
=
Executor
.
currentExecutor
();
if
(
exec
instanceof
OneOffExecutor
)
{
OneOffExecutor
ooe
=
(
OneOffExecutor
)
exec
;
final
WorkUnit
wu
=
ooe
.
getAssignedWorkUnit
();
pendings
.
remove
(
wu
.
context
.
item
);
LeftItem
li
=
new
LeftItem
(
wu
.
context
);
li
.
enter
(
this
);
return
wu
;
}
try
{
while
(
true
)
{
final
JobOffer
offer
=
new
JobOffer
(
exec
);
long
sleep
=
-
1
;
// consider myself parked
assert
!
parked
.
containsKey
(
exec
);
parked
.
put
(
exec
,
offer
);
// reuse executor thread to do a queue maintenance.
// at the end of this we get all the buildable jobs
// in the buildables field.
maintain
();
// we went over all the buildable projects and awaken
// all the executors that got work to do. now, go to sleep
// until this thread is awakened. If this executor assigned a job to
// itself above, the block method will return immediately.
if
(!
waitingList
.
isEmpty
())
{
// wait until the first item in the queue is due
sleep
=
peek
().
timestamp
.
getTimeInMillis
()
-
new
GregorianCalendar
().
getTimeInMillis
();
if
(
sleep
<
100
)
sleep
=
100
;
// avoid wait(0)
}
if
(
sleep
==
-
1
)
offer
.
event
.
block
();
else
offer
.
event
.
block
(
sleep
);
// retract the offer object
assert
parked
.
get
(
exec
)
==
offer
;
parked
.
remove
(
exec
);
// am I woken up because I have a project to build?
if
(
offer
.
workUnit
!=
null
)
{
// if so, just build it
LOGGER
.
log
(
Level
.
FINE
,
"Pop returning {0} for {1}"
,
new
Object
[]
{
offer
.
workUnit
,
exec
.
getName
()});
// TODO: I think this has to be done by the last executor that leaves the pop(), not by main executor
if
(
offer
.
workUnit
.
isMainWork
())
{
pendings
.
remove
(
offer
.
workUnit
.
context
.
item
);
LeftItem
li
=
new
LeftItem
(
offer
.
workUnit
.
context
);
li
.
enter
(
this
);
}
return
offer
.
workUnit
;
}
// otherwise run a queue maintenance
}
}
finally
{
// remove myself from the parked list
JobOffer
offer
=
parked
.
remove
(
exec
);
if
(
offer
!=
null
&&
offer
.
workUnit
!=
null
)
{
// we are already assigned a project, but now we can't handle it.
offer
.
workUnit
.
context
.
abort
(
new
AbortException
());
if
(
offer
.
workUnit
.
context
.
item
!=
null
&&
pendings
.
contains
(
offer
.
workUnit
.
context
.
item
)){
//we are already assigned a project and moved it into pendings, but something wrong had happened before an executor could take it.
pendings
.
remove
(
offer
.
workUnit
.
context
.
item
);
//return it into queue, it does not have to cause this problem, it can be caused by another item.
buildables
.
add
(
offer
.
workUnit
.
context
.
item
);
}
}
/*package*/
synchronized
void
onStartExecuting
(
Executor
exec
)
throws
InterruptedException
{
final
WorkUnit
wu
=
exec
.
getCurrentWorkUnit
();
pendings
.
remove
(
wu
.
context
.
item
);
// since this executor might have been chosen for
// maintenance, schedule another one. Worst case
// we'll just run a pointless maintenance, and that's
// fine.
scheduleMaintenance
();
}
LeftItem
li
=
new
LeftItem
(
wu
.
context
);
li
.
enter
(
this
);
}
/**
...
...
@@ -1002,15 +918,7 @@ public class Queue extends ResourceController implements Saveable {
* This wakes up one {@link Executor} so that it will maintain a queue.
*/
public
synchronized
void
scheduleMaintenance
()
{
// this code assumes that after this method is called
// no more executors will be offered job except by
// the pop() code.
for
(
Entry
<
Executor
,
JobOffer
>
av
:
parked
.
entrySet
())
{
if
(
av
.
getValue
().
workUnit
==
null
)
{
av
.
getValue
().
event
.
signal
();
return
;
}
}
new
MaintainTask
(
this
).
once
();
}
/**
...
...
@@ -1058,6 +966,21 @@ public class Queue extends ResourceController implements Saveable {
public
synchronized
void
maintain
()
{
LOGGER
.
log
(
Level
.
FINE
,
"Queue maintenance started {0}"
,
this
);
{
// update parked
for
(
Computer
c
:
Jenkins
.
getInstance
().
getComputers
())
{
for
(
Executor
e
:
c
.
getExecutors
())
{
if
(
e
.
isParking
())
{
if
(!
parked
.
containsKey
(
e
))
{
parked
.
put
(
e
,
new
JobOffer
(
e
));
}
}
else
{
parked
.
remove
(
e
);
}
}
}
}
{
// blocked -> buildable
for
(
BlockedItem
p
:
new
ArrayList
<
BlockedItem
>(
blockedProjects
.
values
()))
{
// copy as we'll mutate the list
if
(!
isBuildBlocked
(
p
)
&&
allowNewBuildableTask
(
p
.
task
))
{
...
...
@@ -2070,7 +1993,9 @@ public class Queue extends ResourceController implements Saveable {
MaintainTask
(
Queue
queue
)
{
this
.
queue
=
new
WeakReference
<
Queue
>(
queue
);
}
private
void
periodic
()
{
long
interval
=
5000
;
Timer
timer
=
Trigger
.
timer
;
if
(
timer
!=
null
)
{
...
...
@@ -2078,6 +2003,13 @@ public class Queue extends ResourceController implements Saveable {
}
}
private
void
once
()
{
Timer
timer
=
Trigger
.
timer
;
if
(
timer
!=
null
)
{
timer
.
schedule
(
this
,
0
);
}
}
protected
void
doRun
()
{
Queue
q
=
queue
.
get
();
if
(
q
!=
null
)
...
...
core/src/main/java/hudson/slaves/NodeProvisioner.java
浏览文件 @
73073387
...
...
@@ -182,7 +182,7 @@ public class NodeProvisioner {
cl
.
onComplete
(
f
,
node
);
hudson
.
addNode
(
node
);
LOGGER
.
info
(
f
.
displayName
+
" provisioning successfully completed. We have now "
+
hudson
.
getComputers
().
length
+
" computer(s)"
);
LOGGER
.
info
(
f
.
displayName
+
" provisioning
E
successfully completed. We have now "
+
hudson
.
getComputers
().
length
+
" computer(s)"
);
}
catch
(
InterruptedException
e
)
{
throw
new
AssertionError
(
e
);
// since we confirmed that the future is already done
}
catch
(
ExecutionException
e
)
{
...
...
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