[jira] [Updated] (QPID-2968) Blocking on dead sockets
[ https://issues.apache.org/jira/browse/QPID-2968?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Justin Ross updated QPID-2968: -- Labels: patch (was: ) > Blocking on dead sockets > > > Key: QPID-2968 > URL: https://issues.apache.org/jira/browse/QPID-2968 > Project: Qpid > Issue Type: Bug > Components: Python Client >Affects Versions: 0.7, 0.8, 0.9, Future > Environment: Does not matter >Reporter: Dmitry Konishchev >Assignee: Rafael H. Schloming > Labels: patch > Attachments: patch > > > * If you open a few connections, and one of them breaks (for example, > due to a network error), another connections can be locked for time, which > is > equal to network timeout of the broken connection. This happens due to > working with sockets in blocking mode and due to using one Selector for all > connections. > * All connections could become locked forever due to races between > Driver and Selector objects. Driver object removes itself from the Selector > non-atomically and a situation when Driver is alredy closed, but the > Selector > refers to it could happen. In this case select() call in the Selector raise > an exeption due to self._transport.fileno() call on Driver where > self._transport is None. The selector doesn't handle errors on select(), so > the selector's thread will be stopped due to unhandled Exception. > * There is no checks on EINTR error on os.* calls. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: dev-unsubscr...@qpid.apache.org For additional commands, e-mail: dev-h...@qpid.apache.org
[jira] [Updated] (QPID-2968) Blocking on dead sockets
[ https://issues.apache.org/jira/browse/QPID-2968?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Justin Ross updated QPID-2968: -- Fix Version/s: (was: Future) > Blocking on dead sockets > > > Key: QPID-2968 > URL: https://issues.apache.org/jira/browse/QPID-2968 > Project: Qpid > Issue Type: Bug > Components: Python Client >Affects Versions: 0.7, 0.8, 0.9, Future > Environment: Does not matter >Reporter: Dmitry Konishchev >Assignee: Rafael H. Schloming > Labels: patch > Attachments: patch > > > * If you open a few connections, and one of them breaks (for example, > due to a network error), another connections can be locked for time, which > is > equal to network timeout of the broken connection. This happens due to > working with sockets in blocking mode and due to using one Selector for all > connections. > * All connections could become locked forever due to races between > Driver and Selector objects. Driver object removes itself from the Selector > non-atomically and a situation when Driver is alredy closed, but the > Selector > refers to it could happen. In this case select() call in the Selector raise > an exeption due to self._transport.fileno() call on Driver where > self._transport is None. The selector doesn't handle errors on select(), so > the selector's thread will be stopped due to unhandled Exception. > * There is no checks on EINTR error on os.* calls. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: dev-unsubscr...@qpid.apache.org For additional commands, e-mail: dev-h...@qpid.apache.org
[jira] [Updated] (QPID-2968) Blocking on dead sockets
[ https://issues.apache.org/jira/browse/QPID-2968?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Rafael H. Schloming updated QPID-2968: -- Fix Version/s: (was: 0.9) > Blocking on dead sockets > > > Key: QPID-2968 > URL: https://issues.apache.org/jira/browse/QPID-2968 > Project: Qpid > Issue Type: Bug > Components: Python Client >Affects Versions: 0.7, 0.8, 0.9, Future > Environment: Does not matter >Reporter: Dmitry Konishchev >Assignee: Rafael H. Schloming > Fix For: Future > > Attachments: patch > > > * If you open a few connections, and one of them breaks (for example, > due to a network error), another connections can be locked for time, which > is > equal to network timeout of the broken connection. This happens due to > working with sockets in blocking mode and due to using one Selector for all > connections. > * All connections could become locked forever due to races between > Driver and Selector objects. Driver object removes itself from the Selector > non-atomically and a situation when Driver is alredy closed, but the > Selector > refers to it could happen. In this case select() call in the Selector raise > an exeption due to self._transport.fileno() call on Driver where > self._transport is None. The selector doesn't handle errors on select(), so > the selector's thread will be stopped due to unhandled Exception. > * There is no checks on EINTR error on os.* calls. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira - Apache Qpid - AMQP Messaging Implementation Project: http://qpid.apache.org Use/Interact: mailto:dev-subscr...@qpid.apache.org
[jira] Updated: (QPID-2968) Blocking on dead sockets
[ https://issues.apache.org/jira/browse/QPID-2968?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Robbie Gemmell updated QPID-2968: - Fix Version/s: (was: 0.8) (was: 0.7) Removed the Fix For versions 0.7 and 0.8, as the 0.8 release is now finalised. > Blocking on dead sockets > > > Key: QPID-2968 > URL: https://issues.apache.org/jira/browse/QPID-2968 > Project: Qpid > Issue Type: Bug > Components: Python Client >Affects Versions: Future, 0.9, 0.8, 0.7 > Environment: Does not matter >Reporter: Dmitry Konishchev > Fix For: Future, 0.9 > > Attachments: patch > > > * If you open a few connections, and one of them breaks (for example, > due to a network error), another connections can be locked for time, which > is > equal to network timeout of the broken connection. This happens due to > working with sockets in blocking mode and due to using one Selector for all > connections. > * All connections could become locked forever due to races between > Driver and Selector objects. Driver object removes itself from the Selector > non-atomically and a situation when Driver is alredy closed, but the > Selector > refers to it could happen. In this case select() call in the Selector raise > an exeption due to self._transport.fileno() call on Driver where > self._transport is None. The selector doesn't handle errors on select(), so > the selector's thread will be stopped due to unhandled Exception. > * There is no checks on EINTR error on os.* calls. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online. - Apache Qpid - AMQP Messaging Implementation Project: http://qpid.apache.org Use/Interact: mailto:dev-subscr...@qpid.apache.org
[jira] Updated: (QPID-2968) Blocking on dead sockets
[ https://issues.apache.org/jira/browse/QPID-2968?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Dmitry Konishchev updated QPID-2968: Attachment: patch The following patch fixes the bugs. > Blocking on dead sockets > > > Key: QPID-2968 > URL: https://issues.apache.org/jira/browse/QPID-2968 > Project: Qpid > Issue Type: Bug > Components: Python Client >Affects Versions: Future, 0.9, 0.8, 0.7 > Environment: Does not matter >Reporter: Dmitry Konishchev > Fix For: Future, 0.9, 0.8, 0.7 > > Attachments: patch > > > * If you open a few connections, and one of them breaks (for example, > due to a network error), another connections can be locked for time, which > is > equal to network timeout of the broken connection. This happens due to > working with sockets in blocking mode and due to using one Selector for all > connections. > * All connections could become locked forever due to races between > Driver and Selector objects. Driver object removes itself from the Selector > non-atomically and a situation when Driver is alredy closed, but the > Selector > refers to it could happen. In this case select() call in the Selector raise > an exeption due to self._transport.fileno() call on Driver where > self._transport is None. The selector doesn't handle errors on select(), so > the selector's thread will be stopped due to unhandled Exception. > * There is no checks on EINTR error on os.* calls. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online. - Apache Qpid - AMQP Messaging Implementation Project: http://qpid.apache.org Use/Interact: mailto:dev-subscr...@qpid.apache.org
