[jira] [Commented] (BEANUTILS-509) WeakHashmap enters into infinite loop in WrapDynaClass.java
[ https://issues.apache.org/jira/browse/BEANUTILS-509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16647743#comment-16647743 ] Akshay Gehi commented on BEANUTILS-509: --- Yes, in my view that would be a good to have this as an enhancement. The need of the hour is to fix WrapDynaClass because its broken. I am using my own external cache for WrapDynaClass to avoid this problem (using a ConcurrentHashMap) and createDynaClass is always called in a thread-safe manner. > WeakHashmap enters into infinite loop in WrapDynaClass.java > --- > > Key: BEANUTILS-509 > URL: https://issues.apache.org/jira/browse/BEANUTILS-509 > Project: Commons BeanUtils > Issue Type: Bug > Components: DynaBean >Affects Versions: 1.8.2 >Reporter: sunil >Priority: Major > Attachments: WrapDynaCache.patch, > WrapDynaCache_after_svn_commit.patch, console.log.backup > > > We noticed that our application was using too much of CPU , all the 6 cores > were used. > On capturing the thread dump we saw that large number of threads were in the > running state and in : > at java.util.WeakHashMap.get(WeakHashMap.java:403) > at > org.apache.commons.beanutils.WrapDynaClass.createDynaClass(WrapDynaClass.java:425) > > So we are suspecting that the thread has entered into indefinite while loop > and hogging all the CPU resources. > I have attached the thread dump for reference. > > what is the solution for this issue? -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (BEANUTILS-509) WeakHashmap enters into infinite loop in WrapDynaClass.java
[ https://issues.apache.org/jira/browse/BEANUTILS-509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16641676#comment-16641676 ] Akshay Gehi commented on BEANUTILS-509: --- I believe that ConcurrentWeakHashMap would be great! We could increase the timeout of the test to 10 minutes because different users could have different hardware. > WeakHashmap enters into infinite loop in WrapDynaClass.java > --- > > Key: BEANUTILS-509 > URL: https://issues.apache.org/jira/browse/BEANUTILS-509 > Project: Commons BeanUtils > Issue Type: Bug > Components: DynaBean >Affects Versions: 1.8.2 >Reporter: sunil >Priority: Major > Attachments: WrapDynaCache.patch, > WrapDynaCache_after_svn_commit.patch, console.log.backup > > > We noticed that our application was using too much of CPU , all the 6 cores > were used. > On capturing the thread dump we saw that large number of threads were in the > running state and in : > at java.util.WeakHashMap.get(WeakHashMap.java:403) > at > org.apache.commons.beanutils.WrapDynaClass.createDynaClass(WrapDynaClass.java:425) > > So we are suspecting that the thread has entered into indefinite while loop > and hogging all the CPU resources. > I have attached the thread dump for reference. > > what is the solution for this issue? -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (BEANUTILS-509) WeakHashmap enters into infinite loop in WrapDynaClass.java
[ https://issues.apache.org/jira/browse/BEANUTILS-509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16640688#comment-16640688 ] Akshay Gehi commented on BEANUTILS-509: --- Hi Gary, I mentioned in the Junit that the test case is extremely hard to reproduce, we faced this after running the class for 30 hours continuously. As you know, WeakHashMap is quite unpredictable and the BeanUtils makes use of this class in a non-thread safe manner which causes the problem and I have fixed that. I cannot add any further test cases. In case someone else can pitch or have any suggestions, I can have a look. Regards, Akshay Gehi > WeakHashmap enters into infinite loop in WrapDynaClass.java > --- > > Key: BEANUTILS-509 > URL: https://issues.apache.org/jira/browse/BEANUTILS-509 > Project: Commons BeanUtils > Issue Type: Bug > Components: DynaBean >Affects Versions: 1.8.2 >Reporter: sunil >Priority: Major > Attachments: WrapDynaCache.patch, > WrapDynaCache_after_svn_commit.patch, console.log.backup > > > We noticed that our application was using too much of CPU , all the 6 cores > were used. > On capturing the thread dump we saw that large number of threads were in the > running state and in : > at java.util.WeakHashMap.get(WeakHashMap.java:403) > at > org.apache.commons.beanutils.WrapDynaClass.createDynaClass(WrapDynaClass.java:425) > > So we are suspecting that the thread has entered into indefinite while loop > and hogging all the CPU resources. > I have attached the thread dump for reference. > > what is the solution for this issue? -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (BEANUTILS-509) WeakHashmap enters into infinite loop in WrapDynaClass.java
[ https://issues.apache.org/jira/browse/BEANUTILS-509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16639701#comment-16639701 ] Akshay Gehi commented on BEANUTILS-509: --- Hi Gary, Please have a look at [^WrapDynaCache_after_svn_commit.patch] Regards, Akshay Gehi > WeakHashmap enters into infinite loop in WrapDynaClass.java > --- > > Key: BEANUTILS-509 > URL: https://issues.apache.org/jira/browse/BEANUTILS-509 > Project: Commons BeanUtils > Issue Type: Bug > Components: DynaBean >Affects Versions: 1.8.2 >Reporter: sunil >Priority: Major > Attachments: WrapDynaCache.patch, > WrapDynaCache_after_svn_commit.patch, console.log.backup > > > We noticed that our application was using too much of CPU , all the 6 cores > were used. > On capturing the thread dump we saw that large number of threads were in the > running state and in : > at java.util.WeakHashMap.get(WeakHashMap.java:403) > at > org.apache.commons.beanutils.WrapDynaClass.createDynaClass(WrapDynaClass.java:425) > > So we are suspecting that the thread has entered into indefinite while loop > and hogging all the CPU resources. > I have attached the thread dump for reference. > > what is the solution for this issue? -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Updated] (BEANUTILS-509) WeakHashmap enters into infinite loop in WrapDynaClass.java
[ https://issues.apache.org/jira/browse/BEANUTILS-509?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Akshay Gehi updated BEANUTILS-509: -- Attachment: WrapDynaCache_after_svn_commit.patch > WeakHashmap enters into infinite loop in WrapDynaClass.java > --- > > Key: BEANUTILS-509 > URL: https://issues.apache.org/jira/browse/BEANUTILS-509 > Project: Commons BeanUtils > Issue Type: Bug > Components: DynaBean >Affects Versions: 1.8.2 >Reporter: sunil >Priority: Major > Attachments: WrapDynaCache.patch, > WrapDynaCache_after_svn_commit.patch, console.log.backup > > > We noticed that our application was using too much of CPU , all the 6 cores > were used. > On capturing the thread dump we saw that large number of threads were in the > running state and in : > at java.util.WeakHashMap.get(WeakHashMap.java:403) > at > org.apache.commons.beanutils.WrapDynaClass.createDynaClass(WrapDynaClass.java:425) > > So we are suspecting that the thread has entered into indefinite while loop > and hogging all the CPU resources. > I have attached the thread dump for reference. > > what is the solution for this issue? -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Updated] (BEANUTILS-509) WeakHashmap enters into infinite loop in WrapDynaClass.java
[ https://issues.apache.org/jira/browse/BEANUTILS-509?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Akshay Gehi updated BEANUTILS-509: -- Attachment: WrapDynaCache.patch > WeakHashmap enters into infinite loop in WrapDynaClass.java > --- > > Key: BEANUTILS-509 > URL: https://issues.apache.org/jira/browse/BEANUTILS-509 > Project: Commons BeanUtils > Issue Type: Bug > Components: DynaBean >Affects Versions: 1.8.2 >Reporter: sunil >Priority: Major > Attachments: WrapDynaCache.patch, console.log.backup > > > We noticed that our application was using too much of CPU , all the 6 cores > were used. > On capturing the thread dump we saw that large number of threads were in the > running state and in : > at java.util.WeakHashMap.get(WeakHashMap.java:403) > at > org.apache.commons.beanutils.WrapDynaClass.createDynaClass(WrapDynaClass.java:425) > > So we are suspecting that the thread has entered into indefinite while loop > and hogging all the CPU resources. > I have attached the thread dump for reference. > > what is the solution for this issue? -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Updated] (BEANUTILS-509) WeakHashmap enters into infinite loop in WrapDynaClass.java
[ https://issues.apache.org/jira/browse/BEANUTILS-509?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Akshay Gehi updated BEANUTILS-509: -- Attachment: (was: WrapDynaCache.patch) > WeakHashmap enters into infinite loop in WrapDynaClass.java > --- > > Key: BEANUTILS-509 > URL: https://issues.apache.org/jira/browse/BEANUTILS-509 > Project: Commons BeanUtils > Issue Type: Bug > Components: DynaBean >Affects Versions: 1.8.2 >Reporter: sunil >Priority: Major > Attachments: WrapDynaCache.patch, console.log.backup > > > We noticed that our application was using too much of CPU , all the 6 cores > were used. > On capturing the thread dump we saw that large number of threads were in the > running state and in : > at java.util.WeakHashMap.get(WeakHashMap.java:403) > at > org.apache.commons.beanutils.WrapDynaClass.createDynaClass(WrapDynaClass.java:425) > > So we are suspecting that the thread has entered into indefinite while loop > and hogging all the CPU resources. > I have attached the thread dump for reference. > > what is the solution for this issue? -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (BEANUTILS-509) WeakHashmap enters into infinite loop in WrapDynaClass.java
[ https://issues.apache.org/jira/browse/BEANUTILS-509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16638343#comment-16638343 ] Akshay Gehi commented on BEANUTILS-509: --- Hi Gary, It times out because the test case iterates 1 billion times. To be safe, we can change that to 1 million on line 69 of your checked in class. Regards, Akshay Gehi > WeakHashmap enters into infinite loop in WrapDynaClass.java > --- > > Key: BEANUTILS-509 > URL: https://issues.apache.org/jira/browse/BEANUTILS-509 > Project: Commons BeanUtils > Issue Type: Bug > Components: DynaBean >Affects Versions: 1.8.2 >Reporter: sunil >Priority: Major > Attachments: WrapDynaCache.patch, console.log.backup > > > We noticed that our application was using too much of CPU , all the 6 cores > were used. > On capturing the thread dump we saw that large number of threads were in the > running state and in : > at java.util.WeakHashMap.get(WeakHashMap.java:403) > at > org.apache.commons.beanutils.WrapDynaClass.createDynaClass(WrapDynaClass.java:425) > > So we are suspecting that the thread has entered into indefinite while loop > and hogging all the CPU resources. > I have attached the thread dump for reference. > > what is the solution for this issue? -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Updated] (BEANUTILS-509) WeakHashmap enters into infinite loop in WrapDynaClass.java
[ https://issues.apache.org/jira/browse/BEANUTILS-509?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Akshay Gehi updated BEANUTILS-509: -- Attachment: WrapDynaCache.patch > WeakHashmap enters into infinite loop in WrapDynaClass.java > --- > > Key: BEANUTILS-509 > URL: https://issues.apache.org/jira/browse/BEANUTILS-509 > Project: Commons BeanUtils > Issue Type: Bug > Components: DynaBean >Affects Versions: 1.8.2 >Reporter: sunil >Priority: Major > Attachments: WrapDynaCache.patch, console.log.backup > > > We noticed that our application was using too much of CPU , all the 6 cores > were used. > On capturing the thread dump we saw that large number of threads were in the > running state and in : > at java.util.WeakHashMap.get(WeakHashMap.java:403) > at > org.apache.commons.beanutils.WrapDynaClass.createDynaClass(WrapDynaClass.java:425) > > So we are suspecting that the thread has entered into indefinite while loop > and hogging all the CPU resources. > I have attached the thread dump for reference. > > what is the solution for this issue? -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (BEANUTILS-509) WeakHashmap enters into infinite loop in WrapDynaClass.java
[ https://issues.apache.org/jira/browse/BEANUTILS-509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16638044#comment-16638044 ] Akshay Gehi commented on BEANUTILS-509: --- Hi Gary, Please have a look at the revised patch with a concurrency test case. Unfortunately its not an easily replicable issue so the Junit will not always face before the fix is applied > WeakHashmap enters into infinite loop in WrapDynaClass.java > --- > > Key: BEANUTILS-509 > URL: https://issues.apache.org/jira/browse/BEANUTILS-509 > Project: Commons BeanUtils > Issue Type: Bug > Components: DynaBean >Affects Versions: 1.8.2 >Reporter: sunil >Priority: Major > Attachments: WrapDynaCache.patch, console.log.backup > > > We noticed that our application was using too much of CPU , all the 6 cores > were used. > On capturing the thread dump we saw that large number of threads were in the > running state and in : > at java.util.WeakHashMap.get(WeakHashMap.java:403) > at > org.apache.commons.beanutils.WrapDynaClass.createDynaClass(WrapDynaClass.java:425) > > So we are suspecting that the thread has entered into indefinite while loop > and hogging all the CPU resources. > I have attached the thread dump for reference. > > what is the solution for this issue? -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Updated] (BEANUTILS-509) WeakHashmap enters into infinite loop in WrapDynaClass.java
[ https://issues.apache.org/jira/browse/BEANUTILS-509?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Akshay Gehi updated BEANUTILS-509: -- Attachment: (was: WrapDynaCache.patch) > WeakHashmap enters into infinite loop in WrapDynaClass.java > --- > > Key: BEANUTILS-509 > URL: https://issues.apache.org/jira/browse/BEANUTILS-509 > Project: Commons BeanUtils > Issue Type: Bug > Components: DynaBean >Affects Versions: 1.8.2 >Reporter: sunil >Priority: Major > Attachments: WrapDynaCache.patch, console.log.backup > > > We noticed that our application was using too much of CPU , all the 6 cores > were used. > On capturing the thread dump we saw that large number of threads were in the > running state and in : > at java.util.WeakHashMap.get(WeakHashMap.java:403) > at > org.apache.commons.beanutils.WrapDynaClass.createDynaClass(WrapDynaClass.java:425) > > So we are suspecting that the thread has entered into indefinite while loop > and hogging all the CPU resources. > I have attached the thread dump for reference. > > what is the solution for this issue? -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (BEANUTILS-509) WeakHashmap enters into infinite loop in WrapDynaClass.java
[ https://issues.apache.org/jira/browse/BEANUTILS-509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16635229#comment-16635229 ] Akshay Gehi commented on BEANUTILS-509: --- Hi Gary, Sure I can add it however I couldn't find a reference JUnit where similar issues have been resolved (BEANUTILS-318, BEANUTILS-373). May be you could point me to a Jira where a JUnit has been added for a threading issue. > WeakHashmap enters into infinite loop in WrapDynaClass.java > --- > > Key: BEANUTILS-509 > URL: https://issues.apache.org/jira/browse/BEANUTILS-509 > Project: Commons BeanUtils > Issue Type: Bug > Components: DynaBean >Affects Versions: 1.8.2 >Reporter: sunil >Priority: Major > Attachments: WrapDynaCache.patch, console.log.backup > > > We noticed that our application was using too much of CPU , all the 6 cores > were used. > On capturing the thread dump we saw that large number of threads were in the > running state and in : > at java.util.WeakHashMap.get(WeakHashMap.java:403) > at > org.apache.commons.beanutils.WrapDynaClass.createDynaClass(WrapDynaClass.java:425) > > So we are suspecting that the thread has entered into indefinite while loop > and hogging all the CPU resources. > I have attached the thread dump for reference. > > what is the solution for this issue? -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (BEANUTILS-509) WeakHashmap enters into infinite loop in WrapDynaClass.java
[ https://issues.apache.org/jira/browse/BEANUTILS-509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16633981#comment-16633981 ] Akshay Gehi commented on BEANUTILS-509: --- Attaching a patch with the fix > WeakHashmap enters into infinite loop in WrapDynaClass.java > --- > > Key: BEANUTILS-509 > URL: https://issues.apache.org/jira/browse/BEANUTILS-509 > Project: Commons BeanUtils > Issue Type: Bug > Components: DynaBean >Affects Versions: 1.8.2 >Reporter: sunil >Priority: Major > Attachments: WrapDynaCache.patch, console.log.backup > > > We noticed that our application was using too much of CPU , all the 6 cores > were used. > On capturing the thread dump we saw that large number of threads were in the > running state and in : > at java.util.WeakHashMap.get(WeakHashMap.java:403) > at > org.apache.commons.beanutils.WrapDynaClass.createDynaClass(WrapDynaClass.java:425) > > So we are suspecting that the thread has entered into indefinite while loop > and hogging all the CPU resources. > I have attached the thread dump for reference. > > what is the solution for this issue? -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Updated] (BEANUTILS-509) WeakHashmap enters into infinite loop in WrapDynaClass.java
[ https://issues.apache.org/jira/browse/BEANUTILS-509?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Akshay Gehi updated BEANUTILS-509: -- Attachment: WrapDynaCache.patch > WeakHashmap enters into infinite loop in WrapDynaClass.java > --- > > Key: BEANUTILS-509 > URL: https://issues.apache.org/jira/browse/BEANUTILS-509 > Project: Commons BeanUtils > Issue Type: Bug > Components: DynaBean >Affects Versions: 1.8.2 >Reporter: sunil >Priority: Major > Attachments: WrapDynaCache.patch, console.log.backup > > > We noticed that our application was using too much of CPU , all the 6 cores > were used. > On capturing the thread dump we saw that large number of threads were in the > running state and in : > at java.util.WeakHashMap.get(WeakHashMap.java:403) > at > org.apache.commons.beanutils.WrapDynaClass.createDynaClass(WrapDynaClass.java:425) > > So we are suspecting that the thread has entered into indefinite while loop > and hogging all the CPU resources. > I have attached the thread dump for reference. > > what is the solution for this issue? -- This message was sent by Atlassian JIRA (v7.6.3#76005)
[jira] [Commented] (BEANUTILS-509) WeakHashmap enters into infinite loop in WrapDynaClass.java
[
https://issues.apache.org/jira/browse/BEANUTILS-509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16633945#comment-16633945
]
Akshay Gehi commented on BEANUTILS-509:
---
The above issues are similar to this issue. WrapDynaClass uses
CLASSLOADER_CACHE which uses WeakHaspMap in an incorrect way. WeakHashMap is
not thread safe therefore for WrapDynaClass to be threadsafe, it should use a
synchorized access to WeakHashMap as the following
{code:java}
private static final ContextClassLoaderLocal>
CLASSLOADER_CACHE =
new ContextClassLoaderLocal>() {
@Override
protected Map initialValue() {
return Collections.synchronizedMap(new WeakHashMap());
}
};
{code}
> WeakHashmap enters into infinite loop in WrapDynaClass.java
> ---
>
> Key: BEANUTILS-509
> URL: https://issues.apache.org/jira/browse/BEANUTILS-509
> Project: Commons BeanUtils
> Issue Type: Bug
> Components: DynaBean
>Affects Versions: 1.8.2
>Reporter: sunil
>Priority: Major
> Attachments: console.log.backup
>
>
> We noticed that our application was using too much of CPU , all the 6 cores
> were used.
> On capturing the thread dump we saw that large number of threads were in the
> running state and in :
> at java.util.WeakHashMap.get(WeakHashMap.java:403)
> at
> org.apache.commons.beanutils.WrapDynaClass.createDynaClass(WrapDynaClass.java:425)
>
> So we are suspecting that the thread has entered into indefinite while loop
> and hogging all the CPU resources.
> I have attached the thread dump for reference.
>
> what is the solution for this issue?
--
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[jira] [Commented] (BEANUTILS-509) WeakHashmap enters into infinite loop in WrapDynaClass.java
[
https://issues.apache.org/jira/browse/BEANUTILS-509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16633937#comment-16633937
]
Akshay Gehi commented on BEANUTILS-509:
---
I see from your log files that you are using WrapDynaBean
{code:java}
"https-executor-threads - 83" #731 prio=5 os_prio=0 tid=0x7fefa4367000
nid=0x4234 runnable [0x7fef2a56c000]
java.lang.Thread.State: RUNNABLE
at java.util.WeakHashMap.get(WeakHashMap.java:403)
at
org.apache.commons.beanutils.WrapDynaClass.createDynaClass(WrapDynaClass.java:425)
at
org.apache.commons.beanutils.WrapDynaClass.createDynaClass(WrapDynaClass.java:404)
at
org.apache.commons.beanutils.WrapDynaBean.getDynaClass(WrapDynaBean.java:230)
at org.apache.commons.beanutils.WrapDynaBean.(WrapDynaBean.java:79)
at org.apache.commons.beanutils.WrapDynaBean.(WrapDynaBean.java:61){code}
A workaround could be the following:
Use WrapDynaBean's 2 argument constructor and pass a cached instance of
WrapDynaClass yourself. Avoid calling createDynaClass
{code:java}
public WrapDynaBean(final Object instance, final WrapDynaClass cls) {
this.instance = instance;
this.dynaClass = (cls != null) ? cls : (WrapDynaClass) getDynaClass();
}
{code}
> WeakHashmap enters into infinite loop in WrapDynaClass.java
> ---
>
> Key: BEANUTILS-509
> URL: https://issues.apache.org/jira/browse/BEANUTILS-509
> Project: Commons BeanUtils
> Issue Type: Bug
> Components: DynaBean
>Affects Versions: 1.8.2
>Reporter: sunil
>Priority: Major
> Attachments: console.log.backup
>
>
> We noticed that our application was using too much of CPU , all the 6 cores
> were used.
> On capturing the thread dump we saw that large number of threads were in the
> running state and in :
> at java.util.WeakHashMap.get(WeakHashMap.java:403)
> at
> org.apache.commons.beanutils.WrapDynaClass.createDynaClass(WrapDynaClass.java:425)
>
> So we are suspecting that the thread has entered into indefinite while loop
> and hogging all the CPU resources.
> I have attached the thread dump for reference.
>
> what is the solution for this issue?
--
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