[jira] Commented: (ZOOKEEPER-417) stray message problem when changing servers
[
https://issues.apache.org/jira/browse/ZOOKEEPER-417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12724838#action_12724838
]
Hudson commented on ZOOKEEPER-417:
--
Integrated in ZooKeeper-trunk #359 (See
[http://hudson.zones.apache.org/hudson/job/ZooKeeper-trunk/359/])
. stray message problem when changing servers (breed via mahadev)
> stray message problem when changing servers
> ---
>
> Key: ZOOKEEPER-417
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-417
> Project: Zookeeper
> Issue Type: Bug
>Reporter: Benjamin Reed
>Assignee: Benjamin Reed
>Priority: Blocker
> Fix For: 3.2.0
>
> Attachments: ZOOKEEPER-417.patch, ZOOKEEPER-417.patch,
> ZOOKEEPER-417.patch, ZOOKEEPER-417.patch
>
>
> There is a possibility for stray messages from a previous connection to
> violate ordering and generally cause problems. Here is a scenario: we have a
> client, C, two followers, F1 and F2, and a leader, L. The client is connected
> to F1, which is a slow follower. C sends setData("/a", "1") to F1 and then
> loses the connection, so C reconnects to F2 and sends setData("/a", "2"). it
> is possible, if F1 is slow enough and the setData("/a", "1") got onto the
> network before the connection break, for F1 to forward the setData("/a", "1")
> to L after F2 forwards setData("/a", "2").
> to fix this, the leader should keep track of which follower last registered a
> session for a client and drop any requests from followers for clients for
> whom they do not have a registration.
--
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[jira] Commented: (ZOOKEEPER-417) stray message problem when changing servers
[
https://issues.apache.org/jira/browse/ZOOKEEPER-417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12724658#action_12724658
]
Hadoop QA commented on ZOOKEEPER-417:
-
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12411886/ZOOKEEPER-417.patch
against trunk revision 788539.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 12 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
-1 release audit. The applied patch generated 182 release audit warnings
(more than the trunk's current 181 warnings).
+1 core tests. The patch passed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-vesta.apache.org/141/testReport/
Release audit warnings:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-vesta.apache.org/141/artifact/trunk/patchprocess/releaseAuditDiffWarnings.txt
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-vesta.apache.org/141/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-vesta.apache.org/141/console
This message is automatically generated.
> stray message problem when changing servers
> ---
>
> Key: ZOOKEEPER-417
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-417
> Project: Zookeeper
> Issue Type: Bug
>Reporter: Benjamin Reed
>Assignee: Benjamin Reed
>Priority: Blocker
> Fix For: 3.2.0
>
> Attachments: ZOOKEEPER-417.patch, ZOOKEEPER-417.patch,
> ZOOKEEPER-417.patch, ZOOKEEPER-417.patch
>
>
> There is a possibility for stray messages from a previous connection to
> violate ordering and generally cause problems. Here is a scenario: we have a
> client, C, two followers, F1 and F2, and a leader, L. The client is connected
> to F1, which is a slow follower. C sends setData("/a", "1") to F1 and then
> loses the connection, so C reconnects to F2 and sends setData("/a", "2"). it
> is possible, if F1 is slow enough and the setData("/a", "1") got onto the
> network before the connection break, for F1 to forward the setData("/a", "1")
> to L after F2 forwards setData("/a", "2").
> to fix this, the leader should keep track of which follower last registered a
> session for a client and drop any requests from followers for clients for
> whom they do not have a registration.
--
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[jira] Commented: (ZOOKEEPER-417) stray message problem when changing servers
[
https://issues.apache.org/jira/browse/ZOOKEEPER-417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12724617#action_12724617
]
Hadoop QA commented on ZOOKEEPER-417:
-
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12411886/ZOOKEEPER-417.patch
against trunk revision 788539.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 12 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
-1 release audit. The applied patch generated 182 release audit warnings
(more than the trunk's current 181 warnings).
-1 core tests. The patch failed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-vesta.apache.org/140/testReport/
Release audit warnings:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-vesta.apache.org/140/artifact/trunk/patchprocess/releaseAuditDiffWarnings.txt
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-vesta.apache.org/140/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-vesta.apache.org/140/console
This message is automatically generated.
> stray message problem when changing servers
> ---
>
> Key: ZOOKEEPER-417
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-417
> Project: Zookeeper
> Issue Type: Bug
>Reporter: Benjamin Reed
>Assignee: Benjamin Reed
>Priority: Blocker
> Fix For: 3.2.0
>
> Attachments: ZOOKEEPER-417.patch, ZOOKEEPER-417.patch,
> ZOOKEEPER-417.patch, ZOOKEEPER-417.patch
>
>
> There is a possibility for stray messages from a previous connection to
> violate ordering and generally cause problems. Here is a scenario: we have a
> client, C, two followers, F1 and F2, and a leader, L. The client is connected
> to F1, which is a slow follower. C sends setData("/a", "1") to F1 and then
> loses the connection, so C reconnects to F2 and sends setData("/a", "2"). it
> is possible, if F1 is slow enough and the setData("/a", "1") got onto the
> network before the connection break, for F1 to forward the setData("/a", "1")
> to L after F2 forwards setData("/a", "2").
> to fix this, the leader should keep track of which follower last registered a
> session for a client and drop any requests from followers for clients for
> whom they do not have a registration.
--
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You can reply to this email to add a comment to the issue online.
[jira] Commented: (ZOOKEEPER-417) stray message problem when changing servers
[
https://issues.apache.org/jira/browse/ZOOKEEPER-417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12724607#action_12724607
]
Hadoop QA commented on ZOOKEEPER-417:
-
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12411886/ZOOKEEPER-417.patch
against trunk revision 788539.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 12 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
-1 release audit. The applied patch generated 182 release audit warnings
(more than the trunk's current 181 warnings).
+1 core tests. The patch passed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-vesta.apache.org/139/testReport/
Release audit warnings:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-vesta.apache.org/139/artifact/trunk/patchprocess/releaseAuditDiffWarnings.txt
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-vesta.apache.org/139/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-vesta.apache.org/139/console
This message is automatically generated.
> stray message problem when changing servers
> ---
>
> Key: ZOOKEEPER-417
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-417
> Project: Zookeeper
> Issue Type: Bug
>Reporter: Benjamin Reed
>Assignee: Benjamin Reed
>Priority: Blocker
> Fix For: 3.2.0
>
> Attachments: ZOOKEEPER-417.patch, ZOOKEEPER-417.patch,
> ZOOKEEPER-417.patch, ZOOKEEPER-417.patch
>
>
> There is a possibility for stray messages from a previous connection to
> violate ordering and generally cause problems. Here is a scenario: we have a
> client, C, two followers, F1 and F2, and a leader, L. The client is connected
> to F1, which is a slow follower. C sends setData("/a", "1") to F1 and then
> loses the connection, so C reconnects to F2 and sends setData("/a", "2"). it
> is possible, if F1 is slow enough and the setData("/a", "1") got onto the
> network before the connection break, for F1 to forward the setData("/a", "1")
> to L after F2 forwards setData("/a", "2").
> to fix this, the leader should keep track of which follower last registered a
> session for a client and drop any requests from followers for clients for
> whom they do not have a registration.
--
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You can reply to this email to add a comment to the issue online.
[jira] Commented: (ZOOKEEPER-417) stray message problem when changing servers
[
https://issues.apache.org/jira/browse/ZOOKEEPER-417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12724408#action_12724408
]
Mahadev konar commented on ZOOKEEPER-417:
-
+1 to the patch ... ill wait for hudson's +1 before committing.
> stray message problem when changing servers
> ---
>
> Key: ZOOKEEPER-417
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-417
> Project: Zookeeper
> Issue Type: Bug
>Reporter: Benjamin Reed
>Assignee: Benjamin Reed
>Priority: Blocker
> Fix For: 3.2.0
>
> Attachments: ZOOKEEPER-417.patch, ZOOKEEPER-417.patch,
> ZOOKEEPER-417.patch, ZOOKEEPER-417.patch
>
>
> There is a possibility for stray messages from a previous connection to
> violate ordering and generally cause problems. Here is a scenario: we have a
> client, C, two followers, F1 and F2, and a leader, L. The client is connected
> to F1, which is a slow follower. C sends setData("/a", "1") to F1 and then
> loses the connection, so C reconnects to F2 and sends setData("/a", "2"). it
> is possible, if F1 is slow enough and the setData("/a", "1") got onto the
> network before the connection break, for F1 to forward the setData("/a", "1")
> to L after F2 forwards setData("/a", "2").
> to fix this, the leader should keep track of which follower last registered a
> session for a client and drop any requests from followers for clients for
> whom they do not have a registration.
--
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[jira] Commented: (ZOOKEEPER-417) stray message problem when changing servers
[
https://issues.apache.org/jira/browse/ZOOKEEPER-417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12724348#action_12724348
]
Mahadev konar commented on ZOOKEEPER-417:
-
the patch looks good ... i have some comments --
line 543 in NIOServerCnxn.java
{code}
si.setOwner(zk);
zk.submitRequest(si);
{code}
Can we just use some static final Object adn si.setOwner(Object)?
- Is there any use of using zk specifically? If we just use some static object
then we can just say that this will be replaced at the leader with the right
follower handler and then is a dummy object in followers and single zookeeper
wherein it has no spefic use case... the reason I say this is that its a little
confusing to understand the code if we dont have comments here also if we
can use a dummy object rather than zk, its much cleaner. what do you think?
> stray message problem when changing servers
> ---
>
> Key: ZOOKEEPER-417
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-417
> Project: Zookeeper
> Issue Type: Bug
>Reporter: Benjamin Reed
>Assignee: Benjamin Reed
>Priority: Blocker
> Fix For: 3.2.0
>
> Attachments: ZOOKEEPER-417.patch, ZOOKEEPER-417.patch,
> ZOOKEEPER-417.patch
>
>
> There is a possibility for stray messages from a previous connection to
> violate ordering and generally cause problems. Here is a scenario: we have a
> client, C, two followers, F1 and F2, and a leader, L. The client is connected
> to F1, which is a slow follower. C sends setData("/a", "1") to F1 and then
> loses the connection, so C reconnects to F2 and sends setData("/a", "2"). it
> is possible, if F1 is slow enough and the setData("/a", "1") got onto the
> network before the connection break, for F1 to forward the setData("/a", "1")
> to L after F2 forwards setData("/a", "2").
> to fix this, the leader should keep track of which follower last registered a
> session for a client and drop any requests from followers for clients for
> whom they do not have a registration.
--
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You can reply to this email to add a comment to the issue online.
[jira] Commented: (ZOOKEEPER-417) stray message problem when changing servers
[
https://issues.apache.org/jira/browse/ZOOKEEPER-417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12724312#action_12724312
]
Mahadev konar commented on ZOOKEEPER-417:
-
{code}
[exec] Running Zookeeper_clientretry::testRetry
[exec] [exec] make: *** [run-check] Broken pipe
[exec]
[exec] BUILD FAILED
[exec]
/home/hudson/hudson-slave/workspace/Zookeeper-Patch-vesta.apache.org/trunk/build.xml:692:
The following error occurred while executing this line:
[exec]
/home/hudson/hudson-slave/workspace/Zookeeper-Patch-vesta.apache.org/trunk/build.xml:703:
exec returned: 2
{code}
I see the above int he console ooutput of the tests.
Also for the depreacted integers we dont need to add them to the deperecated
api. We should just add them to the new error code.
> stray message problem when changing servers
> ---
>
> Key: ZOOKEEPER-417
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-417
> Project: Zookeeper
> Issue Type: Bug
>Reporter: Benjamin Reed
>Assignee: Benjamin Reed
>Priority: Blocker
> Fix For: 3.2.0
>
> Attachments: ZOOKEEPER-417.patch, ZOOKEEPER-417.patch
>
>
> There is a possibility for stray messages from a previous connection to
> violate ordering and generally cause problems. Here is a scenario: we have a
> client, C, two followers, F1 and F2, and a leader, L. The client is connected
> to F1, which is a slow follower. C sends setData("/a", "1") to F1 and then
> loses the connection, so C reconnects to F2 and sends setData("/a", "2"). it
> is possible, if F1 is slow enough and the setData("/a", "1") got onto the
> network before the connection break, for F1 to forward the setData("/a", "1")
> to L after F2 forwards setData("/a", "2").
> to fix this, the leader should keep track of which follower last registered a
> session for a client and drop any requests from followers for clients for
> whom they do not have a registration.
--
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[jira] Commented: (ZOOKEEPER-417) stray message problem when changing servers
[
https://issues.apache.org/jira/browse/ZOOKEEPER-417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12724309#action_12724309
]
Benjamin Reed commented on ZOOKEEPER-417:
-
the release audit generates warnings before the way i added the new keeper
exception codes. we made the integers deprecated, so i've made the new ones
deprecated as well. should i put the integer in the new error code rather than
added a new deprecated constant?
i can't find any failed tests in the test results. what am i missing?
> stray message problem when changing servers
> ---
>
> Key: ZOOKEEPER-417
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-417
> Project: Zookeeper
> Issue Type: Bug
>Reporter: Benjamin Reed
>Assignee: Benjamin Reed
>Priority: Blocker
> Fix For: 3.2.0
>
> Attachments: ZOOKEEPER-417.patch, ZOOKEEPER-417.patch
>
>
> There is a possibility for stray messages from a previous connection to
> violate ordering and generally cause problems. Here is a scenario: we have a
> client, C, two followers, F1 and F2, and a leader, L. The client is connected
> to F1, which is a slow follower. C sends setData("/a", "1") to F1 and then
> loses the connection, so C reconnects to F2 and sends setData("/a", "2"). it
> is possible, if F1 is slow enough and the setData("/a", "1") got onto the
> network before the connection break, for F1 to forward the setData("/a", "1")
> to L after F2 forwards setData("/a", "2").
> to fix this, the leader should keep track of which follower last registered a
> session for a client and drop any requests from followers for clients for
> whom they do not have a registration.
--
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[jira] Commented: (ZOOKEEPER-417) stray message problem when changing servers
[
https://issues.apache.org/jira/browse/ZOOKEEPER-417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12724301#action_12724301
]
Hadoop QA commented on ZOOKEEPER-417:
-
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12411753/ZOOKEEPER-417.patch
against trunk revision 788502.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 12 new or modified tests.
-1 javadoc. The javadoc tool appears to have generated 1 warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
-1 release audit. The applied patch generated 183 release audit warnings
(more than the trunk's current 181 warnings).
-1 core tests. The patch failed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-vesta.apache.org/135/testReport/
Release audit warnings:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-vesta.apache.org/135/artifact/trunk/patchprocess/releaseAuditDiffWarnings.txt
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-vesta.apache.org/135/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-vesta.apache.org/135/console
This message is automatically generated.
> stray message problem when changing servers
> ---
>
> Key: ZOOKEEPER-417
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-417
> Project: Zookeeper
> Issue Type: Bug
>Reporter: Benjamin Reed
>Assignee: Benjamin Reed
>Priority: Blocker
> Fix For: 3.2.0
>
> Attachments: ZOOKEEPER-417.patch, ZOOKEEPER-417.patch
>
>
> There is a possibility for stray messages from a previous connection to
> violate ordering and generally cause problems. Here is a scenario: we have a
> client, C, two followers, F1 and F2, and a leader, L. The client is connected
> to F1, which is a slow follower. C sends setData("/a", "1") to F1 and then
> loses the connection, so C reconnects to F2 and sends setData("/a", "2"). it
> is possible, if F1 is slow enough and the setData("/a", "1") got onto the
> network before the connection break, for F1 to forward the setData("/a", "1")
> to L after F2 forwards setData("/a", "2").
> to fix this, the leader should keep track of which follower last registered a
> session for a client and drop any requests from followers for clients for
> whom they do not have a registration.
--
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[jira] Commented: (ZOOKEEPER-417) stray message problem when changing servers
[
https://issues.apache.org/jira/browse/ZOOKEEPER-417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12723860#action_12723860
]
Mahadev konar commented on ZOOKEEPER-417:
-
ben, the patch doesnt seem to apply. can you update the jira with the patch
that applies to trunk?
> stray message problem when changing servers
> ---
>
> Key: ZOOKEEPER-417
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-417
> Project: Zookeeper
> Issue Type: Bug
>Reporter: Benjamin Reed
>Assignee: Benjamin Reed
>Priority: Blocker
> Fix For: 3.2.0
>
> Attachments: ZOOKEEPER-417.patch
>
>
> There is a possibility for stray messages from a previous connection to
> violate ordering and generally cause problems. Here is a scenario: we have a
> client, C, two followers, F1 and F2, and a leader, L. The client is connected
> to F1, which is a slow follower. C sends setData("/a", "1") to F1 and then
> loses the connection, so C reconnects to F2 and sends setData("/a", "2"). it
> is possible, if F1 is slow enough and the setData("/a", "1") got onto the
> network before the connection break, for F1 to forward the setData("/a", "1")
> to L after F2 forwards setData("/a", "2").
> to fix this, the leader should keep track of which follower last registered a
> session for a client and drop any requests from followers for clients for
> whom they do not have a registration.
--
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[jira] Commented: (ZOOKEEPER-417) stray message problem when changing servers
[
https://issues.apache.org/jira/browse/ZOOKEEPER-417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12723483#action_12723483
]
Hadoop QA commented on ZOOKEEPER-417:
-
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12411594/ZOOKEEPER-417.patch
against trunk revision 787907.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 12 new or modified tests.
-1 patch. The patch command could not apply the patch.
Console output:
http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-vesta.apache.org/130/console
This message is automatically generated.
> stray message problem when changing servers
> ---
>
> Key: ZOOKEEPER-417
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-417
> Project: Zookeeper
> Issue Type: Bug
>Reporter: Benjamin Reed
>Assignee: Benjamin Reed
>Priority: Blocker
> Fix For: 3.2.0
>
> Attachments: ZOOKEEPER-417.patch
>
>
> There is a possibility for stray messages from a previous connection to
> violate ordering and generally cause problems. Here is a scenario: we have a
> client, C, two followers, F1 and F2, and a leader, L. The client is connected
> to F1, which is a slow follower. C sends setData("/a", "1") to F1 and then
> loses the connection, so C reconnects to F2 and sends setData("/a", "2"). it
> is possible, if F1 is slow enough and the setData("/a", "1") got onto the
> network before the connection break, for F1 to forward the setData("/a", "1")
> to L after F2 forwards setData("/a", "2").
> to fix this, the leader should keep track of which follower last registered a
> session for a client and drop any requests from followers for clients for
> whom they do not have a registration.
--
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