[jira] Updated: (ZOOKEEPER-480) FLE should perform leader check when node is not leading and add vote of follower
[ https://issues.apache.org/jira/browse/ZOOKEEPER-480?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Flavio Paiva Junqueira updated ZOOKEEPER-480: - Status: Patch Available (was: Open) FLE should perform leader check when node is not leading and add vote of follower - Key: ZOOKEEPER-480 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-480 Project: Zookeeper Issue Type: Bug Affects Versions: 3.2.0 Reporter: Flavio Paiva Junqueira Assignee: Flavio Paiva Junqueira Fix For: 3.2.1, 3.3.0 Attachments: ZOOKEEPER-480-3.2branch.patch, ZOOKEEPER-480.patch, ZOOKEEPER-480.patch, ZOOKEEPER-480.patch, ZOOKEEPER-480.patch As a server may join leader election while others have already elected a leader, it is necessary that a server handles some special cases of leader election when notifications are from servers that are either LEADING or FOLLOWING. In such special cases, we check if we have received a message from the leader to declare a leader elected. This check does not consider the case that the process performing the check might be a recently elected leader, and consequently the check fails. This patch also adds a new case, which corresponds to adding a vote to recvset when the notification is from a process LEADING or FOLLOWING. This fixes the case raised in ZOOKEEPER-475. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Updated: (ZOOKEEPER-480) FLE should perform leader check when node is not leading and add vote of follower
[ https://issues.apache.org/jira/browse/ZOOKEEPER-480?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Mahadev konar updated ZOOKEEPER-480: Status: Open (was: Patch Available) flavio, the patch does not apply any more after ZOOKEEPER-481 commit. can you please update the patch? FLE should perform leader check when node is not leading and add vote of follower - Key: ZOOKEEPER-480 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-480 Project: Zookeeper Issue Type: Bug Affects Versions: 3.2.0 Reporter: Flavio Paiva Junqueira Assignee: Flavio Paiva Junqueira Fix For: 3.2.1, 3.3.0 Attachments: ZOOKEEPER-480-3.2branch.patch, ZOOKEEPER-480.patch, ZOOKEEPER-480.patch, ZOOKEEPER-480.patch, ZOOKEEPER-480.patch As a server may join leader election while others have already elected a leader, it is necessary that a server handles some special cases of leader election when notifications are from servers that are either LEADING or FOLLOWING. In such special cases, we check if we have received a message from the leader to declare a leader elected. This check does not consider the case that the process performing the check might be a recently elected leader, and consequently the check fails. This patch also adds a new case, which corresponds to adding a vote to recvset when the notification is from a process LEADING or FOLLOWING. This fixes the case raised in ZOOKEEPER-475. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Updated: (ZOOKEEPER-480) FLE should perform leader check when node is not leading and add vote of follower
[ https://issues.apache.org/jira/browse/ZOOKEEPER-480?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Flavio Paiva Junqueira updated ZOOKEEPER-480: - Attachment: ZOOKEEPER-480.patch Regenerated patch to apply to trunk. Will be posting a new patch for 3.2 trunk shortly. FLE should perform leader check when node is not leading and add vote of follower - Key: ZOOKEEPER-480 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-480 Project: Zookeeper Issue Type: Bug Affects Versions: 3.2.0 Reporter: Flavio Paiva Junqueira Assignee: Flavio Paiva Junqueira Fix For: 3.2.1, 3.3.0 Attachments: ZOOKEEPER-480-3.2branch.patch, ZOOKEEPER-480.patch, ZOOKEEPER-480.patch, ZOOKEEPER-480.patch, ZOOKEEPER-480.patch, ZOOKEEPER-480.patch As a server may join leader election while others have already elected a leader, it is necessary that a server handles some special cases of leader election when notifications are from servers that are either LEADING or FOLLOWING. In such special cases, we check if we have received a message from the leader to declare a leader elected. This check does not consider the case that the process performing the check might be a recently elected leader, and consequently the check fails. This patch also adds a new case, which corresponds to adding a vote to recvset when the notification is from a process LEADING or FOLLOWING. This fixes the case raised in ZOOKEEPER-475. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Updated: (ZOOKEEPER-480) FLE should perform leader check when node is not leading and add vote of follower
[ https://issues.apache.org/jira/browse/ZOOKEEPER-480?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Flavio Paiva Junqueira updated ZOOKEEPER-480: - Attachment: ZOOKEEPER-480-3.2branch.patch Uploading the 3.2 version of the patch. FLE should perform leader check when node is not leading and add vote of follower - Key: ZOOKEEPER-480 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-480 Project: Zookeeper Issue Type: Bug Affects Versions: 3.2.0 Reporter: Flavio Paiva Junqueira Assignee: Flavio Paiva Junqueira Fix For: 3.2.1, 3.3.0 Attachments: ZOOKEEPER-480-3.2branch.patch, ZOOKEEPER-480.patch, ZOOKEEPER-480.patch, ZOOKEEPER-480.patch As a server may join leader election while others have already elected a leader, it is necessary that a server handles some special cases of leader election when notifications are from servers that are either LEADING or FOLLOWING. In such special cases, we check if we have received a message from the leader to declare a leader elected. This check does not consider the case that the process performing the check might be a recently elected leader, and consequently the check fails. This patch also adds a new case, which corresponds to adding a vote to recvset when the notification is from a process LEADING or FOLLOWING. This fixes the case raised in ZOOKEEPER-475. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Updated: (ZOOKEEPER-480) FLE should perform leader check when node is not leading and add vote of follower
[ https://issues.apache.org/jira/browse/ZOOKEEPER-480?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Flavio Paiva Junqueira updated ZOOKEEPER-480: - Status: Open (was: Patch Available) FLE should perform leader check when node is not leading and add vote of follower - Key: ZOOKEEPER-480 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-480 Project: Zookeeper Issue Type: Bug Affects Versions: 3.2.0 Reporter: Flavio Paiva Junqueira Assignee: Flavio Paiva Junqueira Fix For: 3.2.1, 3.3.0 Attachments: ZOOKEEPER-480-3.2branch.patch, ZOOKEEPER-480.patch, ZOOKEEPER-480.patch, ZOOKEEPER-480.patch As a server may join leader election while others have already elected a leader, it is necessary that a server handles some special cases of leader election when notifications are from servers that are either LEADING or FOLLOWING. In such special cases, we check if we have received a message from the leader to declare a leader elected. This check does not consider the case that the process performing the check might be a recently elected leader, and consequently the check fails. This patch also adds a new case, which corresponds to adding a vote to recvset when the notification is from a process LEADING or FOLLOWING. This fixes the case raised in ZOOKEEPER-475. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Updated: (ZOOKEEPER-480) FLE should perform leader check when node is not leading and add vote of follower
[ https://issues.apache.org/jira/browse/ZOOKEEPER-480?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Flavio Paiva Junqueira updated ZOOKEEPER-480: - Attachment: ZOOKEEPER-480.patch Small modification to port assignment in the test, re-running to make sure that still passes all tests. FLE should perform leader check when node is not leading and add vote of follower - Key: ZOOKEEPER-480 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-480 Project: Zookeeper Issue Type: Bug Affects Versions: 3.2.0 Reporter: Flavio Paiva Junqueira Assignee: Flavio Paiva Junqueira Fix For: 3.2.1, 3.3.0 Attachments: ZOOKEEPER-480-3.2branch.patch, ZOOKEEPER-480.patch, ZOOKEEPER-480.patch, ZOOKEEPER-480.patch, ZOOKEEPER-480.patch As a server may join leader election while others have already elected a leader, it is necessary that a server handles some special cases of leader election when notifications are from servers that are either LEADING or FOLLOWING. In such special cases, we check if we have received a message from the leader to declare a leader elected. This check does not consider the case that the process performing the check might be a recently elected leader, and consequently the check fails. This patch also adds a new case, which corresponds to adding a vote to recvset when the notification is from a process LEADING or FOLLOWING. This fixes the case raised in ZOOKEEPER-475. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Updated: (ZOOKEEPER-480) FLE should perform leader check when node is not leading and add vote of follower
[ https://issues.apache.org/jira/browse/ZOOKEEPER-480?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patrick Hunt updated ZOOKEEPER-480: --- Status: Patch Available (was: Open) FLE should perform leader check when node is not leading and add vote of follower - Key: ZOOKEEPER-480 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-480 Project: Zookeeper Issue Type: Bug Affects Versions: 3.2.0 Reporter: Flavio Paiva Junqueira Assignee: Flavio Paiva Junqueira Fix For: 3.2.1, 3.3.0 Attachments: ZOOKEEPER-480.patch, ZOOKEEPER-480.patch As a server may join leader election while others have already elected a leader, it is necessary that a server handles some special cases of leader election when notifications are from servers that are either LEADING or FOLLOWING. In such special cases, we check if we have received a message from the leader to declare a leader elected. This check does not consider the case that the process performing the check might be a recently elected leader, and consequently the check fails. This patch also adds a new case, which corresponds to adding a vote to recvset when the notification is from a process LEADING or FOLLOWING. This fixes the case raised in ZOOKEEPER-475. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Updated: (ZOOKEEPER-480) FLE should perform leader check when node is not leading and add vote of follower
[ https://issues.apache.org/jira/browse/ZOOKEEPER-480?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Patrick Hunt updated ZOOKEEPER-480: --- Affects Version/s: 3.2.0 Fix Version/s: 3.3.0 FLE should perform leader check when node is not leading and add vote of follower - Key: ZOOKEEPER-480 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-480 Project: Zookeeper Issue Type: Bug Affects Versions: 3.2.0 Reporter: Flavio Paiva Junqueira Assignee: Flavio Paiva Junqueira Fix For: 3.2.1, 3.3.0 Attachments: ZOOKEEPER-480.patch, ZOOKEEPER-480.patch As a server may join leader election while others have already elected a leader, it is necessary that a server handles some special cases of leader election when notifications are from servers that are either LEADING or FOLLOWING. In such special cases, we check if we have received a message from the leader to declare a leader elected. This check does not consider the case that the process performing the check might be a recently elected leader, and consequently the check fails. This patch also adds a new case, which corresponds to adding a vote to recvset when the notification is from a process LEADING or FOLLOWING. This fixes the case raised in ZOOKEEPER-475. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Updated: (ZOOKEEPER-480) FLE should perform leader check when node is not leading and add vote of follower
[ https://issues.apache.org/jira/browse/ZOOKEEPER-480?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Flavio Paiva Junqueira updated ZOOKEEPER-480: - Status: Patch Available (was: Open) FLE should perform leader check when node is not leading and add vote of follower - Key: ZOOKEEPER-480 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-480 Project: Zookeeper Issue Type: Bug Reporter: Flavio Paiva Junqueira Fix For: 3.2.1 Attachments: ZOOKEEPER-480.patch, ZOOKEEPER-480.patch As a server may join leader election while others have already elected a leader, it is necessary that a server handles some special cases of leader election when notifications are from servers that are either LEADING or FOLLOWING. In such special cases, we check if we have received a message from the leader to declare a leader elected. This check does not consider the case that the process performing the check might be a recently elected leader, and consequently the check fails. This patch also adds a new case, which corresponds to adding a vote to recvset when the notification is from a process LEADING or FOLLOWING. This fixes the case raised in ZOOKEEPER-475. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Updated: (ZOOKEEPER-480) FLE should perform leader check when node is not leading and add vote of follower
[ https://issues.apache.org/jira/browse/ZOOKEEPER-480?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Flavio Paiva Junqueira updated ZOOKEEPER-480: - Attachment: ZOOKEEPER-480.patch * Adds a case to leader election to recover from a lost message when one single follower elects a leader, but the leader missed the new vote from the follower. This is not a really critical case because in practice the servers would just move to a new round of leader election, and the likelihood that this keeps happening forever is small; * It adds a unit test that basically mocks a server to force a particular sequence and interleaving of messages; * It makes some methods and variables public in QuorumCnxManager to enable the unit test to access them directly. FLE should perform leader check when node is not leading and add vote of follower - Key: ZOOKEEPER-480 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-480 Project: Zookeeper Issue Type: Bug Reporter: Flavio Paiva Junqueira Fix For: 3.2.1 Attachments: ZOOKEEPER-480.patch, ZOOKEEPER-480.patch As a server may join leader election while others have already elected a leader, it is necessary that a server handles some special cases of leader election when notifications are from servers that are either LEADING or FOLLOWING. In such special cases, we check if we have received a message from the leader to declare a leader elected. This check does not consider the case that the process performing the check might be a recently elected leader, and consequently the check fails. This patch also adds a new case, which corresponds to adding a vote to recvset when the notification is from a process LEADING or FOLLOWING. This fixes the case raised in ZOOKEEPER-475. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
