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Posted to java-dev@axis.apache.org by ax...@ws.apache.org on 2004/10/11 00:39:51 UTC
[jira] Created: (AXIS-1597) Reponse time increases with load for axis
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A new issue has been created in JIRA.
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Key: AXIS-1597
Summary: Reponse time increases with load for axis
Type: Bug
Status: Unassigned
Priority: Major
Project: Axis
Components:
Basic Architecture
Versions:
1.1
Assignee:
Reporter: Anand Nair
Created: Sun, 10 Oct 2004 3:39 PM
Updated: Sun, 10 Oct 2004 3:39 PM
Environment: ALL
Description:
On an average load on the server , the thread dump is indicating many ( ~250wait for monitor at :
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:318)
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:335)
at org.apache.axis.configuration.FileProvider.configureEngine(FileProvider.java:209)
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[jira] Closed: (AXIS-1597) Reponse time increases with load for axis
Posted by ax...@ws.apache.org.
Message:
The following issue has been closed.
Resolver: Davanum Srinivas
Date: Thu, 14 Oct 2004 8:35 AM
Applied Jongjin/Peter 's patch (with my own tiny changes). Please review.
-- dims
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Key: AXIS-1597
Summary: Reponse time increases with load for axis
Type: Bug
Status: Closed
Priority: Major
Resolution: FIXED
Project: Axis
Components:
Basic Architecture
Versions:
1.1
Assignee:
Reporter: Anand Nair
Created: Sun, 10 Oct 2004 3:39 PM
Updated: Thu, 14 Oct 2004 8:35 AM
Environment: ALL
Description:
On an average load on the server , the thread dump is indicating many ( ~250wait for monitor at :
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:318)
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:335)
at org.apache.axis.configuration.FileProvider.configureEngine(FileProvider.java:209)
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[jira] Commented: (AXIS-1597) Reponse time increases with load for axis
Posted by ax...@ws.apache.org.
The following comment has been added to this issue:
Author: Jongjin Choi
Created: Sun, 10 Oct 2004 6:09 PM
Body:
Anand, which xml parser are you using?
I recommend you to try latest version of Xerces.
In my experience, Xerces 2.6.2 performs well in multi-threaded
environment compared to JDK 1.4's embedded parser and/or crimson.
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Here is an overview of the issue:
---------------------------------------------------------------------
Key: AXIS-1597
Summary: Reponse time increases with load for axis
Type: Bug
Status: Unassigned
Priority: Major
Project: Axis
Components:
Basic Architecture
Versions:
1.1
Assignee:
Reporter: Anand Nair
Created: Sun, 10 Oct 2004 3:39 PM
Updated: Sun, 10 Oct 2004 6:09 PM
Environment: ALL
Description:
On an average load on the server , the thread dump is indicating many ( ~250wait for monitor at :
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:318)
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:335)
at org.apache.axis.configuration.FileProvider.configureEngine(FileProvider.java:209)
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[jira] Commented: (AXIS-1597) Reponse time increases with load for axis
Posted by ax...@ws.apache.org.
The following comment has been added to this issue:
Author: Peter Smith
Created: Sun, 10 Oct 2004 7:50 PM
Body:
- Shouldn't the synchronized (documentBuilders) in getDocumentBuildFactory() enclose the empty test?
- Why is the synchronized (documentBuilders) in releaseDocumentBuilder method necessary?
cheers,
Peter
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View the issue:
http://issues.apache.org/jira/browse/AXIS-1597
Here is an overview of the issue:
---------------------------------------------------------------------
Key: AXIS-1597
Summary: Reponse time increases with load for axis
Type: Bug
Status: Unassigned
Priority: Major
Project: Axis
Components:
Basic Architecture
Versions:
1.1
Assignee:
Reporter: Anand Nair
Created: Sun, 10 Oct 2004 3:39 PM
Updated: Sun, 10 Oct 2004 7:50 PM
Environment: ALL
Description:
On an average load on the server , the thread dump is indicating many ( ~250wait for monitor at :
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:318)
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:335)
at org.apache.axis.configuration.FileProvider.configureEngine(FileProvider.java:209)
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[jira] Commented: (AXIS-1597) Reponse time increases with load for axis
Posted by ax...@ws.apache.org.
The following comment has been added to this issue:
Author: Peter Smith
Created: Sun, 10 Oct 2004 8:52 PM
Body:
Yes, I think same (about releaseSAXParser). Although I doubt you'd gain much by changing it.
Also, in your code [for review] shouldn't the paired calls to get/release be balanced using 'finally' blocks, as in:
DocumentBuilder db = null;
try {
db = getDocumentBuilder();
...
} finally {
if (db != null) {
releaseDocumentBuilder(db);
}
Cheers,
Peter.
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View the issue:
http://issues.apache.org/jira/browse/AXIS-1597
Here is an overview of the issue:
---------------------------------------------------------------------
Key: AXIS-1597
Summary: Reponse time increases with load for axis
Type: Bug
Status: Unassigned
Priority: Major
Project: Axis
Components:
Basic Architecture
Versions:
1.1
Assignee:
Reporter: Anand Nair
Created: Sun, 10 Oct 2004 3:39 PM
Updated: Sun, 10 Oct 2004 8:52 PM
Environment: ALL
Description:
On an average load on the server , the thread dump is indicating many ( ~250wait for monitor at :
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:318)
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:335)
at org.apache.axis.configuration.FileProvider.configureEngine(FileProvider.java:209)
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[jira] Commented: (AXIS-1597) Reponse time increases with load for axis
Posted by ax...@ws.apache.org.
The following comment has been added to this issue:
Author: Anand Nair
Created: Mon, 11 Oct 2004 12:52 AM
Body:
Thanks much for quick reponse! We are using Xerces 1.4.4 version with Axis 1.1. This is definetly old and we need to upgrade but would that solve our problem? Also I am also seeing that many threads wait at :
at org.apache.xerces.utils.SymbolCache.addSymbolToCache(SymbolCache.java:220)
at org.apache.xerces.utils.StringPool.addSymbol(StringPool.java:393)
at org.apache.xerces.validators.common.XMLValidator.init(XMLValidator.java:2075)
at org.apache.xerces.validators.common.XMLValidator.resetCommon(XMLValidator.java:2058)
at org.apache.xerces.validators.common.XMLValidator.resetOrCopy(XMLValidator.java:480)
at org.apache.xerces.framework.XMLParser.resetOrCopy(XMLParser.java:1021)
at org.apache.xerces.framework.XMLParser.parseSomeSetup(XMLParser.java:311)
at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:1097)
at javax.xml.parsers.SAXParser.parse(SAXParser.java:393)
at org.apache.axis.encoding.DeserializationContextImpl.parse(DeserializationContextImpl.java:242)
at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:538)
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View the issue:
http://issues.apache.org/jira/browse/AXIS-1597
Here is an overview of the issue:
---------------------------------------------------------------------
Key: AXIS-1597
Summary: Reponse time increases with load for axis
Type: Bug
Status: Unassigned
Priority: Major
Project: Axis
Components:
Basic Architecture
Versions:
1.1
Assignee:
Reporter: Anand Nair
Created: Sun, 10 Oct 2004 3:39 PM
Updated: Mon, 11 Oct 2004 12:52 AM
Environment: ALL
Description:
On an average load on the server , the thread dump is indicating many ( ~250wait for monitor at :
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:318)
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:335)
at org.apache.axis.configuration.FileProvider.configureEngine(FileProvider.java:209)
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[jira] Commented: (AXIS-1597) Reponse time increases with load for axis
Posted by ax...@ws.apache.org.
The following comment has been added to this issue:
Author: Davanum Srinivas
Created: Sun, 10 Oct 2004 4:12 PM
Body:
Please try 1.2 RC1
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View the issue:
http://issues.apache.org/jira/browse/AXIS-1597
Here is an overview of the issue:
---------------------------------------------------------------------
Key: AXIS-1597
Summary: Reponse time increases with load for axis
Type: Bug
Status: Unassigned
Priority: Major
Project: Axis
Components:
Basic Architecture
Versions:
1.1
Assignee:
Reporter: Anand Nair
Created: Sun, 10 Oct 2004 3:39 PM
Updated: Sun, 10 Oct 2004 4:12 PM
Environment: ALL
Description:
On an average load on the server , the thread dump is indicating many ( ~250wait for monitor at :
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:318)
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:335)
at org.apache.axis.configuration.FileProvider.configureEngine(FileProvider.java:209)
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[jira] Commented: (AXIS-1597) Reponse time increases with load for axis
Posted by ax...@ws.apache.org.
The following comment has been added to this issue:
Author: Jongjin Choi
Created: Sun, 10 Oct 2004 8:17 PM
Body:
Peter,
- Shouldn't the synchronized (documentBuilders) in getDocumentBuildFactory() enclose the empty test?
Yes, I think you're right. I missed that.
- Why is the synchronized (documentBuilders) in releaseDocumentBuilder method necessary?
Do you mean that it is not necessary becasue the Stack class is synchronized? Umm.. I think you're right, too.
So, I don't think that it is necessary to synchronize XMLUtils.class in releaseSAXParser(), too. What do you think?
The difference in get/releaseSAXParser in XMLUtils and get/releaseDocumentBuilder is :
* getSAXParser - synchronized method
getDocumentBuilder - synchronize stack in method (empty check, pop)
* releaseSAXParser - synchronized XMLUtils.class
releaseDocumentBuilder - no synchronization needed ( stack is synchronized)
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View the issue:
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Here is an overview of the issue:
---------------------------------------------------------------------
Key: AXIS-1597
Summary: Reponse time increases with load for axis
Type: Bug
Status: Unassigned
Priority: Major
Project: Axis
Components:
Basic Architecture
Versions:
1.1
Assignee:
Reporter: Anand Nair
Created: Sun, 10 Oct 2004 3:39 PM
Updated: Sun, 10 Oct 2004 8:17 PM
Environment: ALL
Description:
On an average load on the server , the thread dump is indicating many ( ~250wait for monitor at :
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:318)
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:335)
at org.apache.axis.configuration.FileProvider.configureEngine(FileProvider.java:209)
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[jira] Commented: (AXIS-1597) Reponse time increases with load for axis
Posted by ax...@ws.apache.org.
The following comment has been added to this issue:
Author: Jongjin Choi
Created: Sun, 10 Oct 2004 7:24 PM
Body:
This is the code for DocumentBuilder reuse.
Can you review this?
private static Stack documentBuilders = new Stack();
public static DocumentBuilder getDocumentBuilder() {
if (!documentBuilders.empty()) {
synchronized (documentBuilders) {
return (DocumentBuilder) documentBuilders.pop();
}
}
try {
DocumentBuilder db = null;
synchronized (dbf) {
db = dbf.newDocumentBuilder();
}
return db;
} catch (ParserConfigurationException e) {
log.error(Messages.getMessage("parserConfigurationException00"), e);
return null;
}
}
public static void releaseDocumentBuilder(DocumentBuilder db) {
synchronized (documentBuilders) {
db.setErrorHandler(null); // setting implementation default
db.setEntityResolver(null); // setting implementation default
documentBuilders.push(db);
}
}
public static Document newDocument()
throws ParserConfigurationException
{
DocumentBuilder db = getDocumentBuilder();
Document doc = db.newDocument();
releaseDocumentBuilder(db);
return doc;
}
public static Document newDocument(InputSource inp)
throws ParserConfigurationException, SAXException, IOException
{
DocumentBuilder db = getDocumentBuilder();
db.setEntityResolver(new DefaultEntityResolver());
db.setErrorHandler( new ParserErrorHandler() );
Document doc = db.parse(inp);
releaseDocumentBuilder(db);
return doc;
}
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View the issue:
http://issues.apache.org/jira/browse/AXIS-1597
Here is an overview of the issue:
---------------------------------------------------------------------
Key: AXIS-1597
Summary: Reponse time increases with load for axis
Type: Bug
Status: Unassigned
Priority: Major
Project: Axis
Components:
Basic Architecture
Versions:
1.1
Assignee:
Reporter: Anand Nair
Created: Sun, 10 Oct 2004 3:39 PM
Updated: Sun, 10 Oct 2004 7:24 PM
Environment: ALL
Description:
On an average load on the server , the thread dump is indicating many ( ~250wait for monitor at :
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:318)
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:335)
at org.apache.axis.configuration.FileProvider.configureEngine(FileProvider.java:209)
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[jira] Commented: (AXIS-1597) Reponse time increases with load for axis
Posted by ax...@ws.apache.org.
The following comment has been added to this issue:
Author: Anand Nair
Created: Tue, 12 Oct 2004 11:03 AM
Body:
Any update on this?
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View the issue:
http://issues.apache.org/jira/browse/AXIS-1597
Here is an overview of the issue:
---------------------------------------------------------------------
Key: AXIS-1597
Summary: Reponse time increases with load for axis
Type: Bug
Status: Unassigned
Priority: Major
Project: Axis
Components:
Basic Architecture
Versions:
1.1
Assignee:
Reporter: Anand Nair
Created: Sun, 10 Oct 2004 3:39 PM
Updated: Tue, 12 Oct 2004 11:03 AM
Environment: ALL
Description:
On an average load on the server , the thread dump is indicating many ( ~250wait for monitor at :
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:318)
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:335)
at org.apache.axis.configuration.FileProvider.configureEngine(FileProvider.java:209)
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[jira] Commented: (AXIS-1597) Reponse time increases with load for axis
Posted by ax...@ws.apache.org.
The following comment has been added to this issue:
Author: Jongjin Choi
Created: Sun, 10 Oct 2004 7:01 PM
Body:
Dims and all axis developers.
In XmlUtils.java, the Axis reuses the SAX Parsers using Stack.
What about reusing DocumentBuilder?
Accroding to DocumentBuilderFactory's javadoc, the DocumentBuilderFactory object should be synchronized to make DocumentBuilder from it.
I think it may take long to create a new DocumentBuilder from DocumentBuilderFactory.
This can be a cause for Anand's case. If Axis reuse the DocumentBuilder like SAXParser, the synchornization to DocumentBuilder stack is needed but in the case where
free DocumentBuilder remains in the stack, we can avoid making new DocumentBuilder every time and can get the performance gain.
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View the issue:
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Here is an overview of the issue:
---------------------------------------------------------------------
Key: AXIS-1597
Summary: Reponse time increases with load for axis
Type: Bug
Status: Unassigned
Priority: Major
Project: Axis
Components:
Basic Architecture
Versions:
1.1
Assignee:
Reporter: Anand Nair
Created: Sun, 10 Oct 2004 3:39 PM
Updated: Sun, 10 Oct 2004 7:01 PM
Environment: ALL
Description:
On an average load on the server , the thread dump is indicating many ( ~250wait for monitor at :
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:318)
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:335)
at org.apache.axis.configuration.FileProvider.configureEngine(FileProvider.java:209)
---------------------------------------------------------------------
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