[jira] [Commented] (HADOOP-15865) ConcurrentModificationException in Configuration.overlay() method
[
https://issues.apache.org/jira/browse/HADOOP-15865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16941425#comment-16941425
]
Wei-Chiu Chuang commented on HADOOP-15865:
--
Patch applies cleanly in branch-3.1 and branch-3.2.
Cherry picking the commit into these two branches.
> ConcurrentModificationException in Configuration.overlay() method
> -
>
> Key: HADOOP-15865
> URL: https://issues.apache.org/jira/browse/HADOOP-15865
> Project: Hadoop Common
> Issue Type: Bug
>Reporter: Oleksandr Shevchenko
>Assignee: Oleksandr Shevchenko
>Priority: Major
> Fix For: 3.3.0
>
> Attachments: HADOOP-15865.001.patch
>
>
> Configuration.overlay() is not thread-safe and can be the cause of
> ConcurrentModificationException since we use iteration over Properties
> object.
> {code}
> private void overlay(Properties to, Properties from) {
> for (Entry entry: from.entrySet()) {
> to.put(entry.getKey(), entry.getValue());
> }
> }
> {code}
> Properties class is thread-safe but iterator is not. We should manually
> synchronize on the returned set of entries which we use for iteration.
> We faced with ResourceManger fails during recovery caused by
> ConcurrentModificationException:
> {noformat}
> 2018-10-12 08:00:56,968 INFO org.apache.hadoop.service.AbstractService:
> Service ResourceManager failed in state STARTED; cause:
> java.util.ConcurrentModificationException
> java.util.ConcurrentModificationException
> at java.util.Hashtable$Enumerator.next(Hashtable.java:1383)
> at org.apache.hadoop.conf.Configuration.overlay(Configuration.java:2801)
> at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:2696)
> at
> org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:2632)
> at org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2528)
> at org.apache.hadoop.conf.Configuration.get(Configuration.java:1062)
> at
> org.apache.hadoop.conf.Configuration.getStringCollection(Configuration.java:1914)
> at
> org.apache.hadoop.security.alias.CredentialProviderFactory.getProviders(CredentialProviderFactory.java:53)
> at
> org.apache.hadoop.conf.Configuration.getPasswordFromCredentialProviders(Configuration.java:2043)
> at org.apache.hadoop.conf.Configuration.getPassword(Configuration.java:2023)
> at
> org.apache.hadoop.yarn.webapp.util.WebAppUtils.getPassword(WebAppUtils.java:452)
> at
> org.apache.hadoop.yarn.webapp.util.WebAppUtils.loadSslConfiguration(WebAppUtils.java:428)
> at org.apache.hadoop.yarn.webapp.WebApps$Builder.start(WebApps.java:293)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.startWepApp(ResourceManager.java:1017)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceStart(ResourceManager.java:1117)
> at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.main(ResourceManager.java:1251)
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.security.RMDelegationTokenSecretManager:
> removing RMDelegation token with sequence number: 3489914
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore: Removing
> RMDelegationToken and SequenceNumber
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.recovery.FileSystemRMStateStore:
> Removing RMDelegationToken_3489914
> 2018-10-12 08:00:56,969 INFO org.apache.hadoop.ipc.Server: Stopping server on
> 8032
> {noformat}
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[jira] [Commented] (HADOOP-15865) ConcurrentModificationException in Configuration.overlay() method
[
https://issues.apache.org/jira/browse/HADOOP-15865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16898591#comment-16898591
]
Hudson commented on HADOOP-15865:
-
FAILURE: Integrated in Jenkins build Hadoop-trunk-Commit #17022 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/17022/])
HADOOP-15865. ConcurrentModificationException in Configuration.overlay()
(weichiu: rev e872ceb810a343da7fce7185dca78d3b9aad9b7b)
* (edit)
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java
> ConcurrentModificationException in Configuration.overlay() method
> -
>
> Key: HADOOP-15865
> URL: https://issues.apache.org/jira/browse/HADOOP-15865
> Project: Hadoop Common
> Issue Type: Bug
>Reporter: Oleksandr Shevchenko
>Assignee: Oleksandr Shevchenko
>Priority: Major
> Fix For: 3.3.0
>
> Attachments: HADOOP-15865.001.patch
>
>
> Configuration.overlay() is not thread-safe and can be the cause of
> ConcurrentModificationException since we use iteration over Properties
> object.
> {code}
> private void overlay(Properties to, Properties from) {
> for (Entry entry: from.entrySet()) {
> to.put(entry.getKey(), entry.getValue());
> }
> }
> {code}
> Properties class is thread-safe but iterator is not. We should manually
> synchronize on the returned set of entries which we use for iteration.
> We faced with ResourceManger fails during recovery caused by
> ConcurrentModificationException:
> {noformat}
> 2018-10-12 08:00:56,968 INFO org.apache.hadoop.service.AbstractService:
> Service ResourceManager failed in state STARTED; cause:
> java.util.ConcurrentModificationException
> java.util.ConcurrentModificationException
> at java.util.Hashtable$Enumerator.next(Hashtable.java:1383)
> at org.apache.hadoop.conf.Configuration.overlay(Configuration.java:2801)
> at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:2696)
> at
> org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:2632)
> at org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2528)
> at org.apache.hadoop.conf.Configuration.get(Configuration.java:1062)
> at
> org.apache.hadoop.conf.Configuration.getStringCollection(Configuration.java:1914)
> at
> org.apache.hadoop.security.alias.CredentialProviderFactory.getProviders(CredentialProviderFactory.java:53)
> at
> org.apache.hadoop.conf.Configuration.getPasswordFromCredentialProviders(Configuration.java:2043)
> at org.apache.hadoop.conf.Configuration.getPassword(Configuration.java:2023)
> at
> org.apache.hadoop.yarn.webapp.util.WebAppUtils.getPassword(WebAppUtils.java:452)
> at
> org.apache.hadoop.yarn.webapp.util.WebAppUtils.loadSslConfiguration(WebAppUtils.java:428)
> at org.apache.hadoop.yarn.webapp.WebApps$Builder.start(WebApps.java:293)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.startWepApp(ResourceManager.java:1017)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceStart(ResourceManager.java:1117)
> at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.main(ResourceManager.java:1251)
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.security.RMDelegationTokenSecretManager:
> removing RMDelegation token with sequence number: 3489914
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore: Removing
> RMDelegationToken and SequenceNumber
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.recovery.FileSystemRMStateStore:
> Removing RMDelegationToken_3489914
> 2018-10-12 08:00:56,969 INFO org.apache.hadoop.ipc.Server: Stopping server on
> 8032
> {noformat}
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[jira] [Commented] (HADOOP-15865) ConcurrentModificationException in Configuration.overlay() method
[
https://issues.apache.org/jira/browse/HADOOP-15865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16898507#comment-16898507
]
Wei-Chiu Chuang commented on HADOOP-15865:
--
LGTM.
> ConcurrentModificationException in Configuration.overlay() method
> -
>
> Key: HADOOP-15865
> URL: https://issues.apache.org/jira/browse/HADOOP-15865
> Project: Hadoop Common
> Issue Type: Bug
>Reporter: Oleksandr Shevchenko
>Assignee: Oleksandr Shevchenko
>Priority: Major
> Attachments: HADOOP-15865.001.patch
>
>
> Configuration.overlay() is not thread-safe and can be the cause of
> ConcurrentModificationException since we use iteration over Properties
> object.
> {code}
> private void overlay(Properties to, Properties from) {
> for (Entry entry: from.entrySet()) {
> to.put(entry.getKey(), entry.getValue());
> }
> }
> {code}
> Properties class is thread-safe but iterator is not. We should manually
> synchronize on the returned set of entries which we use for iteration.
> We faced with ResourceManger fails during recovery caused by
> ConcurrentModificationException:
> {noformat}
> 2018-10-12 08:00:56,968 INFO org.apache.hadoop.service.AbstractService:
> Service ResourceManager failed in state STARTED; cause:
> java.util.ConcurrentModificationException
> java.util.ConcurrentModificationException
> at java.util.Hashtable$Enumerator.next(Hashtable.java:1383)
> at org.apache.hadoop.conf.Configuration.overlay(Configuration.java:2801)
> at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:2696)
> at
> org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:2632)
> at org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2528)
> at org.apache.hadoop.conf.Configuration.get(Configuration.java:1062)
> at
> org.apache.hadoop.conf.Configuration.getStringCollection(Configuration.java:1914)
> at
> org.apache.hadoop.security.alias.CredentialProviderFactory.getProviders(CredentialProviderFactory.java:53)
> at
> org.apache.hadoop.conf.Configuration.getPasswordFromCredentialProviders(Configuration.java:2043)
> at org.apache.hadoop.conf.Configuration.getPassword(Configuration.java:2023)
> at
> org.apache.hadoop.yarn.webapp.util.WebAppUtils.getPassword(WebAppUtils.java:452)
> at
> org.apache.hadoop.yarn.webapp.util.WebAppUtils.loadSslConfiguration(WebAppUtils.java:428)
> at org.apache.hadoop.yarn.webapp.WebApps$Builder.start(WebApps.java:293)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.startWepApp(ResourceManager.java:1017)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceStart(ResourceManager.java:1117)
> at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.main(ResourceManager.java:1251)
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.security.RMDelegationTokenSecretManager:
> removing RMDelegation token with sequence number: 3489914
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore: Removing
> RMDelegationToken and SequenceNumber
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.recovery.FileSystemRMStateStore:
> Removing RMDelegationToken_3489914
> 2018-10-12 08:00:56,969 INFO org.apache.hadoop.ipc.Server: Stopping server on
> 8032
> {noformat}
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[jira] [Commented] (HADOOP-15865) ConcurrentModificationException in Configuration.overlay() method
[
https://issues.apache.org/jira/browse/HADOOP-15865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16897150#comment-16897150
]
Hadoop QA commented on HADOOP-15865:
| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 14m
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|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:red}-1{color} | {color:red} test4tests {color} | {color:red} 0m
0s{color} | {color:red} The patch doesn't appear to include any new or modified
tests. Please justify why no new tests are needed for this patch. Also please
list what manual steps were performed to verify this patch. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 25m
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| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
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our client artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m
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| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
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|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
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| {color:green}+1{color} | {color:green} compile {color} | {color:green} 16m
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| {color:green}+1{color} | {color:green} javac {color} | {color:green} 16m
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| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
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| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
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| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
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| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
11m 24s{color} | {color:green} patch has no errors when building and testing
our client artifacts. {color} |
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|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 9m
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| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
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|| Subsystem || Report/Notes ||
| Docker | Client=19.03.1 Server=19.03.1 Image:yetus/hadoop:bdbca0e53b4 |
| JIRA Issue | HADOOP-15865 |
| JIRA Patch URL |
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|
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
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| uname | Linux 5815e85bc011 4.15.0-54-generic #58-Ubuntu SMP Mon Jun 24
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| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / d4ab9ae |
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| Default Java | 1.8.0_222 |
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| Test Results |
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| modules | C: hadoop-common-project/hadoop-common U:
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> ConcurrentModificationException
[jira] [Commented] (HADOOP-15865) ConcurrentModificationException in Configuration.overlay() method
[
https://issues.apache.org/jira/browse/HADOOP-15865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16897045#comment-16897045
]
Sergey Svynarchuk commented on HADOOP-15865:
Could someone look into the patch and review it?
> ConcurrentModificationException in Configuration.overlay() method
> -
>
> Key: HADOOP-15865
> URL: https://issues.apache.org/jira/browse/HADOOP-15865
> Project: Hadoop Common
> Issue Type: Bug
>Reporter: Oleksandr Shevchenko
>Assignee: Oleksandr Shevchenko
>Priority: Major
> Attachments: HADOOP-15865.001.patch
>
>
> Configuration.overlay() is not thread-safe and can be the cause of
> ConcurrentModificationException since we use iteration over Properties
> object.
> {code}
> private void overlay(Properties to, Properties from) {
> for (Entry entry: from.entrySet()) {
> to.put(entry.getKey(), entry.getValue());
> }
> }
> {code}
> Properties class is thread-safe but iterator is not. We should manually
> synchronize on the returned set of entries which we use for iteration.
> We faced with ResourceManger fails during recovery caused by
> ConcurrentModificationException:
> {noformat}
> 2018-10-12 08:00:56,968 INFO org.apache.hadoop.service.AbstractService:
> Service ResourceManager failed in state STARTED; cause:
> java.util.ConcurrentModificationException
> java.util.ConcurrentModificationException
> at java.util.Hashtable$Enumerator.next(Hashtable.java:1383)
> at org.apache.hadoop.conf.Configuration.overlay(Configuration.java:2801)
> at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:2696)
> at
> org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:2632)
> at org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2528)
> at org.apache.hadoop.conf.Configuration.get(Configuration.java:1062)
> at
> org.apache.hadoop.conf.Configuration.getStringCollection(Configuration.java:1914)
> at
> org.apache.hadoop.security.alias.CredentialProviderFactory.getProviders(CredentialProviderFactory.java:53)
> at
> org.apache.hadoop.conf.Configuration.getPasswordFromCredentialProviders(Configuration.java:2043)
> at org.apache.hadoop.conf.Configuration.getPassword(Configuration.java:2023)
> at
> org.apache.hadoop.yarn.webapp.util.WebAppUtils.getPassword(WebAppUtils.java:452)
> at
> org.apache.hadoop.yarn.webapp.util.WebAppUtils.loadSslConfiguration(WebAppUtils.java:428)
> at org.apache.hadoop.yarn.webapp.WebApps$Builder.start(WebApps.java:293)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.startWepApp(ResourceManager.java:1017)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceStart(ResourceManager.java:1117)
> at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.main(ResourceManager.java:1251)
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.security.RMDelegationTokenSecretManager:
> removing RMDelegation token with sequence number: 3489914
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore: Removing
> RMDelegationToken and SequenceNumber
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.recovery.FileSystemRMStateStore:
> Removing RMDelegationToken_3489914
> 2018-10-12 08:00:56,969 INFO org.apache.hadoop.ipc.Server: Stopping server on
> 8032
> {noformat}
--
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[jira] [Commented] (HADOOP-15865) ConcurrentModificationException in Configuration.overlay() method
[
https://issues.apache.org/jira/browse/HADOOP-15865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16691758#comment-16691758
]
Oleksandr Shevchenko commented on HADOOP-15865:
---
Could someone kindly review the patch?
Thanks!
> ConcurrentModificationException in Configuration.overlay() method
> -
>
> Key: HADOOP-15865
> URL: https://issues.apache.org/jira/browse/HADOOP-15865
> Project: Hadoop Common
> Issue Type: Bug
>Reporter: Oleksandr Shevchenko
>Assignee: Oleksandr Shevchenko
>Priority: Major
> Attachments: HADOOP-15865.001.patch
>
>
> Configuration.overlay() is not thread-safe and can be the cause of
> ConcurrentModificationException since we use iteration over Properties
> object.
> {code}
> private void overlay(Properties to, Properties from) {
> for (Entry entry: from.entrySet()) {
> to.put(entry.getKey(), entry.getValue());
> }
> }
> {code}
> Properties class is thread-safe but iterator is not. We should manually
> synchronize on the returned set of entries which we use for iteration.
> We faced with ResourceManger fails during recovery caused by
> ConcurrentModificationException:
> {noformat}
> 2018-10-12 08:00:56,968 INFO org.apache.hadoop.service.AbstractService:
> Service ResourceManager failed in state STARTED; cause:
> java.util.ConcurrentModificationException
> java.util.ConcurrentModificationException
> at java.util.Hashtable$Enumerator.next(Hashtable.java:1383)
> at org.apache.hadoop.conf.Configuration.overlay(Configuration.java:2801)
> at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:2696)
> at
> org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:2632)
> at org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2528)
> at org.apache.hadoop.conf.Configuration.get(Configuration.java:1062)
> at
> org.apache.hadoop.conf.Configuration.getStringCollection(Configuration.java:1914)
> at
> org.apache.hadoop.security.alias.CredentialProviderFactory.getProviders(CredentialProviderFactory.java:53)
> at
> org.apache.hadoop.conf.Configuration.getPasswordFromCredentialProviders(Configuration.java:2043)
> at org.apache.hadoop.conf.Configuration.getPassword(Configuration.java:2023)
> at
> org.apache.hadoop.yarn.webapp.util.WebAppUtils.getPassword(WebAppUtils.java:452)
> at
> org.apache.hadoop.yarn.webapp.util.WebAppUtils.loadSslConfiguration(WebAppUtils.java:428)
> at org.apache.hadoop.yarn.webapp.WebApps$Builder.start(WebApps.java:293)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.startWepApp(ResourceManager.java:1017)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceStart(ResourceManager.java:1117)
> at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.main(ResourceManager.java:1251)
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.security.RMDelegationTokenSecretManager:
> removing RMDelegation token with sequence number: 3489914
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore: Removing
> RMDelegationToken and SequenceNumber
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.recovery.FileSystemRMStateStore:
> Removing RMDelegationToken_3489914
> 2018-10-12 08:00:56,969 INFO org.apache.hadoop.ipc.Server: Stopping server on
> 8032
> {noformat}
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[jira] [Commented] (HADOOP-15865) ConcurrentModificationException in Configuration.overlay() method
[
https://issues.apache.org/jira/browse/HADOOP-15865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16676790#comment-16676790
]
Oleksandr Shevchenko commented on HADOOP-15865:
---
[~ajisakaa] Thanks a lot for the review! [~andrew.wang] Could you please
double-check this?
Thanks.
> ConcurrentModificationException in Configuration.overlay() method
> -
>
> Key: HADOOP-15865
> URL: https://issues.apache.org/jira/browse/HADOOP-15865
> Project: Hadoop Common
> Issue Type: Bug
>Reporter: Oleksandr Shevchenko
>Assignee: Oleksandr Shevchenko
>Priority: Major
> Attachments: HADOOP-15865.001.patch
>
>
> Configuration.overlay() is not thread-safe and can be the cause of
> ConcurrentModificationException since we use iteration over Properties
> object.
> {code}
> private void overlay(Properties to, Properties from) {
> for (Entry entry: from.entrySet()) {
> to.put(entry.getKey(), entry.getValue());
> }
> }
> {code}
> Properties class is thread-safe but iterator is not. We should manually
> synchronize on the returned set of entries which we use for iteration.
> We faced with ResourceManger fails during recovery caused by
> ConcurrentModificationException:
> {noformat}
> 2018-10-12 08:00:56,968 INFO org.apache.hadoop.service.AbstractService:
> Service ResourceManager failed in state STARTED; cause:
> java.util.ConcurrentModificationException
> java.util.ConcurrentModificationException
> at java.util.Hashtable$Enumerator.next(Hashtable.java:1383)
> at org.apache.hadoop.conf.Configuration.overlay(Configuration.java:2801)
> at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:2696)
> at
> org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:2632)
> at org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2528)
> at org.apache.hadoop.conf.Configuration.get(Configuration.java:1062)
> at
> org.apache.hadoop.conf.Configuration.getStringCollection(Configuration.java:1914)
> at
> org.apache.hadoop.security.alias.CredentialProviderFactory.getProviders(CredentialProviderFactory.java:53)
> at
> org.apache.hadoop.conf.Configuration.getPasswordFromCredentialProviders(Configuration.java:2043)
> at org.apache.hadoop.conf.Configuration.getPassword(Configuration.java:2023)
> at
> org.apache.hadoop.yarn.webapp.util.WebAppUtils.getPassword(WebAppUtils.java:452)
> at
> org.apache.hadoop.yarn.webapp.util.WebAppUtils.loadSslConfiguration(WebAppUtils.java:428)
> at org.apache.hadoop.yarn.webapp.WebApps$Builder.start(WebApps.java:293)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.startWepApp(ResourceManager.java:1017)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceStart(ResourceManager.java:1117)
> at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.main(ResourceManager.java:1251)
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.security.RMDelegationTokenSecretManager:
> removing RMDelegation token with sequence number: 3489914
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore: Removing
> RMDelegationToken and SequenceNumber
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.recovery.FileSystemRMStateStore:
> Removing RMDelegationToken_3489914
> 2018-10-12 08:00:56,969 INFO org.apache.hadoop.ipc.Server: Stopping server on
> 8032
> {noformat}
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[jira] [Commented] (HADOOP-15865) ConcurrentModificationException in Configuration.overlay() method
[
https://issues.apache.org/jira/browse/HADOOP-15865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16668201#comment-16668201
]
Akira Ajisaka commented on HADOOP-15865:
The patch looks good to me. Hi [~andrew.wang], could you double-check this?
> ConcurrentModificationException in Configuration.overlay() method
> -
>
> Key: HADOOP-15865
> URL: https://issues.apache.org/jira/browse/HADOOP-15865
> Project: Hadoop Common
> Issue Type: Bug
>Reporter: Oleksandr Shevchenko
>Assignee: Oleksandr Shevchenko
>Priority: Major
> Attachments: HADOOP-15865.001.patch
>
>
> Configuration.overlay() is not thread-safe and can be the cause of
> ConcurrentModificationException since we use iteration over Properties
> object.
> {code}
> private void overlay(Properties to, Properties from) {
> for (Entry entry: from.entrySet()) {
> to.put(entry.getKey(), entry.getValue());
> }
> }
> {code}
> Properties class is thread-safe but iterator is not. We should manually
> synchronize on the returned set of entries which we use for iteration.
> We faced with ResourceManger fails during recovery caused by
> ConcurrentModificationException:
> {noformat}
> 2018-10-12 08:00:56,968 INFO org.apache.hadoop.service.AbstractService:
> Service ResourceManager failed in state STARTED; cause:
> java.util.ConcurrentModificationException
> java.util.ConcurrentModificationException
> at java.util.Hashtable$Enumerator.next(Hashtable.java:1383)
> at org.apache.hadoop.conf.Configuration.overlay(Configuration.java:2801)
> at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:2696)
> at
> org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:2632)
> at org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2528)
> at org.apache.hadoop.conf.Configuration.get(Configuration.java:1062)
> at
> org.apache.hadoop.conf.Configuration.getStringCollection(Configuration.java:1914)
> at
> org.apache.hadoop.security.alias.CredentialProviderFactory.getProviders(CredentialProviderFactory.java:53)
> at
> org.apache.hadoop.conf.Configuration.getPasswordFromCredentialProviders(Configuration.java:2043)
> at org.apache.hadoop.conf.Configuration.getPassword(Configuration.java:2023)
> at
> org.apache.hadoop.yarn.webapp.util.WebAppUtils.getPassword(WebAppUtils.java:452)
> at
> org.apache.hadoop.yarn.webapp.util.WebAppUtils.loadSslConfiguration(WebAppUtils.java:428)
> at org.apache.hadoop.yarn.webapp.WebApps$Builder.start(WebApps.java:293)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.startWepApp(ResourceManager.java:1017)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceStart(ResourceManager.java:1117)
> at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.main(ResourceManager.java:1251)
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.security.RMDelegationTokenSecretManager:
> removing RMDelegation token with sequence number: 3489914
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore: Removing
> RMDelegationToken and SequenceNumber
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.recovery.FileSystemRMStateStore:
> Removing RMDelegationToken_3489914
> 2018-10-12 08:00:56,969 INFO org.apache.hadoop.ipc.Server: Stopping server on
> 8032
> {noformat}
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[jira] [Commented] (HADOOP-15865) ConcurrentModificationException in Configuration.overlay() method
[
https://issues.apache.org/jira/browse/HADOOP-15865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16667410#comment-16667410
]
Oleksandr Shevchenko commented on HADOOP-15865:
---
Could someone review the attached changes?
Thanks.
> ConcurrentModificationException in Configuration.overlay() method
> -
>
> Key: HADOOP-15865
> URL: https://issues.apache.org/jira/browse/HADOOP-15865
> Project: Hadoop Common
> Issue Type: Bug
>Reporter: Oleksandr Shevchenko
>Assignee: Oleksandr Shevchenko
>Priority: Major
> Attachments: HADOOP-15865.001.patch
>
>
> Configuration.overlay() is not thread-safe and can be the cause of
> ConcurrentModificationException since we use iteration over Properties
> object.
> {code}
> private void overlay(Properties to, Properties from) {
> for (Entry entry: from.entrySet()) {
> to.put(entry.getKey(), entry.getValue());
> }
> }
> {code}
> Properties class is thread-safe but iterator is not. We should manually
> synchronize on the returned set of entries which we use for iteration.
> We faced with ResourceManger fails during recovery caused by
> ConcurrentModificationException:
> {noformat}
> 2018-10-12 08:00:56,968 INFO org.apache.hadoop.service.AbstractService:
> Service ResourceManager failed in state STARTED; cause:
> java.util.ConcurrentModificationException
> java.util.ConcurrentModificationException
> at java.util.Hashtable$Enumerator.next(Hashtable.java:1383)
> at org.apache.hadoop.conf.Configuration.overlay(Configuration.java:2801)
> at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:2696)
> at
> org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:2632)
> at org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2528)
> at org.apache.hadoop.conf.Configuration.get(Configuration.java:1062)
> at
> org.apache.hadoop.conf.Configuration.getStringCollection(Configuration.java:1914)
> at
> org.apache.hadoop.security.alias.CredentialProviderFactory.getProviders(CredentialProviderFactory.java:53)
> at
> org.apache.hadoop.conf.Configuration.getPasswordFromCredentialProviders(Configuration.java:2043)
> at org.apache.hadoop.conf.Configuration.getPassword(Configuration.java:2023)
> at
> org.apache.hadoop.yarn.webapp.util.WebAppUtils.getPassword(WebAppUtils.java:452)
> at
> org.apache.hadoop.yarn.webapp.util.WebAppUtils.loadSslConfiguration(WebAppUtils.java:428)
> at org.apache.hadoop.yarn.webapp.WebApps$Builder.start(WebApps.java:293)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.startWepApp(ResourceManager.java:1017)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceStart(ResourceManager.java:1117)
> at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.main(ResourceManager.java:1251)
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.security.RMDelegationTokenSecretManager:
> removing RMDelegation token with sequence number: 3489914
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore: Removing
> RMDelegationToken and SequenceNumber
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.recovery.FileSystemRMStateStore:
> Removing RMDelegationToken_3489914
> 2018-10-12 08:00:56,969 INFO org.apache.hadoop.ipc.Server: Stopping server on
> 8032
> {noformat}
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[jira] [Commented] (HADOOP-15865) ConcurrentModificationException in Configuration.overlay() method
[
https://issues.apache.org/jira/browse/HADOOP-15865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16656643#comment-16656643
]
Oleksandr Shevchenko commented on HADOOP-15865:
---
Thanks [~lqjacklee] for your comment.
Yes, HADOOP-15418 has the same root cause of the problem. Using not thread-safe
iterators.
The different is HADOOP-15418 fix the problem related to using iterator of
Configuration object instead of the iterator of Properties object. When we
iterate across Properties ConcurrentModificationException can't be thrown since
we work with the local variable.
In the case described in this ticket, we use iterator of Properties object
which is the parameter of overlay() method. As the result, we can get
ConcurrentModificationException.
> ConcurrentModificationException in Configuration.overlay() method
> -
>
> Key: HADOOP-15865
> URL: https://issues.apache.org/jira/browse/HADOOP-15865
> Project: Hadoop Common
> Issue Type: Bug
>Reporter: Oleksandr Shevchenko
>Assignee: Oleksandr Shevchenko
>Priority: Major
> Attachments: HADOOP-15865.001.patch
>
>
> Configuration.overlay() is not thread-safe and can be the cause of
> ConcurrentModificationException since we use iteration over Properties
> object.
> {code}
> private void overlay(Properties to, Properties from) {
> for (Entry entry: from.entrySet()) {
> to.put(entry.getKey(), entry.getValue());
> }
> }
> {code}
> Properties class is thread-safe but iterator is not. We should manually
> synchronize on the returned set of entries which we use for iteration.
> We faced with ResourceManger fails during recovery caused by
> ConcurrentModificationException:
> {noformat}
> 2018-10-12 08:00:56,968 INFO org.apache.hadoop.service.AbstractService:
> Service ResourceManager failed in state STARTED; cause:
> java.util.ConcurrentModificationException
> java.util.ConcurrentModificationException
> at java.util.Hashtable$Enumerator.next(Hashtable.java:1383)
> at org.apache.hadoop.conf.Configuration.overlay(Configuration.java:2801)
> at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:2696)
> at
> org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:2632)
> at org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2528)
> at org.apache.hadoop.conf.Configuration.get(Configuration.java:1062)
> at
> org.apache.hadoop.conf.Configuration.getStringCollection(Configuration.java:1914)
> at
> org.apache.hadoop.security.alias.CredentialProviderFactory.getProviders(CredentialProviderFactory.java:53)
> at
> org.apache.hadoop.conf.Configuration.getPasswordFromCredentialProviders(Configuration.java:2043)
> at org.apache.hadoop.conf.Configuration.getPassword(Configuration.java:2023)
> at
> org.apache.hadoop.yarn.webapp.util.WebAppUtils.getPassword(WebAppUtils.java:452)
> at
> org.apache.hadoop.yarn.webapp.util.WebAppUtils.loadSslConfiguration(WebAppUtils.java:428)
> at org.apache.hadoop.yarn.webapp.WebApps$Builder.start(WebApps.java:293)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.startWepApp(ResourceManager.java:1017)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceStart(ResourceManager.java:1117)
> at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.main(ResourceManager.java:1251)
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.security.RMDelegationTokenSecretManager:
> removing RMDelegation token with sequence number: 3489914
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore: Removing
> RMDelegationToken and SequenceNumber
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.recovery.FileSystemRMStateStore:
> Removing RMDelegationToken_3489914
> 2018-10-12 08:00:56,969 INFO org.apache.hadoop.ipc.Server: Stopping server on
> 8032
> {noformat}
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[jira] [Commented] (HADOOP-15865) ConcurrentModificationException in Configuration.overlay() method
[
https://issues.apache.org/jira/browse/HADOOP-15865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16656616#comment-16656616
]
Hadoop QA commented on HADOOP-15865:
| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 8m
32s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:red}-1{color} | {color:red} test4tests {color} | {color:red} 0m
0s{color} | {color:red} The patch doesn't appear to include any new or modified
tests. Please justify why no new tests are needed for this patch. Also please
list what manual steps were performed to verify this patch. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 22m
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| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
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our client artifacts. {color} |
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| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
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|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
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| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
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| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
12m 20s{color} | {color:green} patch has no errors when building and testing
our client artifacts. {color} |
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|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 10m
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| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:4b8c2b1 |
| JIRA Issue | HADOOP-15865 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12944672/HADOOP-15865.001.patch
|
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
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| uname | Linux 45adfeacf878 3.13.0-143-generic #192-Ubuntu SMP Tue Feb 27
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| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 285d2c0 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_181 |
| findbugs | v3.1.0-RC1 |
| Test Results |
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| Max. process+thread count | 1446 (vs. ulimit of 1) |
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>
[jira] [Commented] (HADOOP-15865) ConcurrentModificationException in Configuration.overlay() method
[
https://issues.apache.org/jira/browse/HADOOP-15865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16656480#comment-16656480
]
lqjacklee commented on HADOOP-15865:
[~oshevchenko] Does the it similar with HADOOP-15418?
> ConcurrentModificationException in Configuration.overlay() method
> -
>
> Key: HADOOP-15865
> URL: https://issues.apache.org/jira/browse/HADOOP-15865
> Project: Hadoop Common
> Issue Type: Bug
>Reporter: Oleksandr Shevchenko
>Assignee: Oleksandr Shevchenko
>Priority: Major
> Attachments: HADOOP-15865.001.patch
>
>
> Configuration.overlay() is not thread-safe and can be the cause of
> ConcurrentModificationException since we use iteration over Properties
> object.
> {code}
> private void overlay(Properties to, Properties from) {
> for (Entry entry: from.entrySet()) {
> to.put(entry.getKey(), entry.getValue());
> }
> }
> {code}
> Properties class is thread-safe but iterator is not. We should manually
> synchronize on the returned set of entries which we use for iteration.
> We faced with ResourceManger fails during recovery caused by
> ConcurrentModificationException:
> {noformat}
> 2018-10-12 08:00:56,968 INFO org.apache.hadoop.service.AbstractService:
> Service ResourceManager failed in state STARTED; cause:
> java.util.ConcurrentModificationException
> java.util.ConcurrentModificationException
> at java.util.Hashtable$Enumerator.next(Hashtable.java:1383)
> at org.apache.hadoop.conf.Configuration.overlay(Configuration.java:2801)
> at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:2696)
> at
> org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:2632)
> at org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2528)
> at org.apache.hadoop.conf.Configuration.get(Configuration.java:1062)
> at
> org.apache.hadoop.conf.Configuration.getStringCollection(Configuration.java:1914)
> at
> org.apache.hadoop.security.alias.CredentialProviderFactory.getProviders(CredentialProviderFactory.java:53)
> at
> org.apache.hadoop.conf.Configuration.getPasswordFromCredentialProviders(Configuration.java:2043)
> at org.apache.hadoop.conf.Configuration.getPassword(Configuration.java:2023)
> at
> org.apache.hadoop.yarn.webapp.util.WebAppUtils.getPassword(WebAppUtils.java:452)
> at
> org.apache.hadoop.yarn.webapp.util.WebAppUtils.loadSslConfiguration(WebAppUtils.java:428)
> at org.apache.hadoop.yarn.webapp.WebApps$Builder.start(WebApps.java:293)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.startWepApp(ResourceManager.java:1017)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceStart(ResourceManager.java:1117)
> at org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.main(ResourceManager.java:1251)
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.security.RMDelegationTokenSecretManager:
> removing RMDelegation token with sequence number: 3489914
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore: Removing
> RMDelegationToken and SequenceNumber
> 2018-10-12 08:00:56,968 INFO
> org.apache.hadoop.yarn.server.resourcemanager.recovery.FileSystemRMStateStore:
> Removing RMDelegationToken_3489914
> 2018-10-12 08:00:56,969 INFO org.apache.hadoop.ipc.Server: Stopping server on
> 8032
> {noformat}
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