[jira] [Updated] (HADOOP-9436) NetgroupCache does not refresh membership correctly

2015-02-05 Thread Allen Wittenauer (JIRA)

 [ 
https://issues.apache.org/jira/browse/HADOOP-9436?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Allen Wittenauer updated HADOOP-9436:
-
Status: Open  (was: Patch Available)

 NetgroupCache does not refresh membership correctly
 ---

 Key: HADOOP-9436
 URL: https://issues.apache.org/jira/browse/HADOOP-9436
 Project: Hadoop Common
  Issue Type: Bug
Affects Versions: 0.23.7, 2.0.3-alpha, 3.0.0
Reporter: Kihwal Lee
Assignee: Kihwal Lee
 Attachments: HADOOP-9436.patch


 NetgroupCache is used to get around the problem of inability to obtain a 
 single user-to-groups mapping from netgroup. For example, the ACL code 
 pre-populates this cache, so that any user-group mapping can be resolved for 
 all groups defined in the service.
 However, the current refresh code only adds users to existing groups, so a 
 loss of group membership won't take effect. This is because the internal 
 user-groups mapping cache is never invalidated. If this is simply invalidated 
 on clear(), the cache entries will build up correctly, but user-group 
 resolution may fail during refresh, resulting in incorrectly denying accesses.



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[jira] [Updated] (HADOOP-9436) NetgroupCache does not refresh membership correctly

2015-02-05 Thread Allen Wittenauer (JIRA)

 [ 
https://issues.apache.org/jira/browse/HADOOP-9436?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Allen Wittenauer updated HADOOP-9436:
-
Status: Patch Available  (was: Open)

 NetgroupCache does not refresh membership correctly
 ---

 Key: HADOOP-9436
 URL: https://issues.apache.org/jira/browse/HADOOP-9436
 Project: Hadoop Common
  Issue Type: Bug
Affects Versions: 0.23.7, 2.0.3-alpha, 3.0.0
Reporter: Kihwal Lee
Assignee: Kihwal Lee
 Attachments: HADOOP-9436.patch


 NetgroupCache is used to get around the problem of inability to obtain a 
 single user-to-groups mapping from netgroup. For example, the ACL code 
 pre-populates this cache, so that any user-group mapping can be resolved for 
 all groups defined in the service.
 However, the current refresh code only adds users to existing groups, so a 
 loss of group membership won't take effect. This is because the internal 
 user-groups mapping cache is never invalidated. If this is simply invalidated 
 on clear(), the cache entries will build up correctly, but user-group 
 resolution may fail during refresh, resulting in incorrectly denying accesses.



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[jira] [Updated] (HADOOP-9436) NetgroupCache does not refresh membership correctly

2015-02-05 Thread Allen Wittenauer (JIRA)

 [ 
https://issues.apache.org/jira/browse/HADOOP-9436?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Allen Wittenauer updated HADOOP-9436:
-
Status: Open  (was: Patch Available)

Cancelling patch, as it no longer applies.

 NetgroupCache does not refresh membership correctly
 ---

 Key: HADOOP-9436
 URL: https://issues.apache.org/jira/browse/HADOOP-9436
 Project: Hadoop Common
  Issue Type: Bug
Affects Versions: 0.23.7, 2.0.3-alpha, 3.0.0
Reporter: Kihwal Lee
Assignee: Kihwal Lee
 Attachments: HADOOP-9436.patch


 NetgroupCache is used to get around the problem of inability to obtain a 
 single user-to-groups mapping from netgroup. For example, the ACL code 
 pre-populates this cache, so that any user-group mapping can be resolved for 
 all groups defined in the service.
 However, the current refresh code only adds users to existing groups, so a 
 loss of group membership won't take effect. This is because the internal 
 user-groups mapping cache is never invalidated. If this is simply invalidated 
 on clear(), the cache entries will build up correctly, but user-group 
 resolution may fail during refresh, resulting in incorrectly denying accesses.



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[jira] [Updated] (HADOOP-9436) NetgroupCache does not refresh membership correctly

2013-03-27 Thread Kihwal Lee (JIRA)

 [ 
https://issues.apache.org/jira/browse/HADOOP-9436?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Kihwal Lee updated HADOOP-9436:
---

Attachment: HADOOP-9436.patch

 NetgroupCache does not refresh membership correctly
 ---

 Key: HADOOP-9436
 URL: https://issues.apache.org/jira/browse/HADOOP-9436
 Project: Hadoop Common
  Issue Type: Bug
Affects Versions: 3.0.0, 2.0.3-alpha, 0.23.7
Reporter: Kihwal Lee
Assignee: Kihwal Lee
 Attachments: HADOOP-9436.patch


 NetgroupCache is used to get around the problem of inability to obtain a 
 single user-to-groups mapping from netgroup. For example, the ACL code 
 pre-populates this cache, so that any user-group mapping can be resolved for 
 all groups defined in the service.
 However, the current refresh code only adds users to existing groups, so a 
 loss of group membership won't take effect. This is because the internal 
 user-groups mapping cache is never invalidated. If this is simply invalidated 
 on clear(), the cache entries will build up correctly, but user-group 
 resolution may fail during refresh, resulting in incorrectly denying accesses.

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[jira] [Updated] (HADOOP-9436) NetgroupCache does not refresh membership correctly

2013-03-27 Thread Kihwal Lee (JIRA)

 [ 
https://issues.apache.org/jira/browse/HADOOP-9436?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Kihwal Lee updated HADOOP-9436:
---

Status: Patch Available  (was: Open)

 NetgroupCache does not refresh membership correctly
 ---

 Key: HADOOP-9436
 URL: https://issues.apache.org/jira/browse/HADOOP-9436
 Project: Hadoop Common
  Issue Type: Bug
Affects Versions: 2.0.3-alpha, 3.0.0, 0.23.7
Reporter: Kihwal Lee
Assignee: Kihwal Lee
 Attachments: HADOOP-9436.patch


 NetgroupCache is used to get around the problem of inability to obtain a 
 single user-to-groups mapping from netgroup. For example, the ACL code 
 pre-populates this cache, so that any user-group mapping can be resolved for 
 all groups defined in the service.
 However, the current refresh code only adds users to existing groups, so a 
 loss of group membership won't take effect. This is because the internal 
 user-groups mapping cache is never invalidated. If this is simply invalidated 
 on clear(), the cache entries will build up correctly, but user-group 
 resolution may fail during refresh, resulting in incorrectly denying accesses.

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