公开(公告)号：US20200186455A1

公开(公告)日：2020-06-11

申请号：US16211027

申请日：2018-12-05

Applicant: VMware, Inc.

Inventor： Zeeshan Lokhandwala ,  Medhavi Dhawan ,  Dahlia Malkhi ,  Michael Wei ,  Maithem Munshed ,  Ragnar Edholm

IPC: H04L12/26 ,  H04L12/24 ,  H04L12/707

Abstract: Techniques for implementing dynamic timeout-based fault detection in a distributed system are provided. In one set of embodiments, a node of the distributed system can set a timeout interval to a minimum value and transmit poll messages to other nodes in the distributed system. The node can further wait for acknowledgement messages from all of the other nodes, where the acknowledgement messages are responsive to the poll messages, and can check whether it has received the acknowledgement messages from all of the other nodes within the timeout interval. If the node has failed to receive an acknowledgement message from at least one of the other nodes within the timeout interval and if the timeout interval is less than a maximum value, the node can increment the timeout interval by a delta value and can repeat the setting, the transmitting, the waiting, and the checking steps.

公开(公告)号：US20200233689A1

公开(公告)日：2020-07-23

申请号：US16255768

申请日：2019-01-23

Applicant: VMware, Inc.

Inventor： Srinivas NEGINHAL ,  Medhavi Dhawan ,  Vjekoslav Brajkovic ,  Cheng Zhang ,  Jiaqi Chen ,  David Tsai ,  Maithem Munshed ,  Zeeshan Lokhandwala ,  Ming Wen ,  Ragnar Edholm ,  Rajneesh Bajpai

IPC: G06F9/455 ,  H04L29/06 ,  G06F16/182 ,  G06F3/06

Abstract: Certain embodiments described herein are directed to methods and systems for adding one or more nodes to a first cluster including a first node in a computer system. A method performed by the first node comprises receiving a first request from a second node to join the first cluster. The method also comprises retrieving a first cluster configuration associated with the first cluster from a distributed database through a first database server (DBS) and creating a second cluster configuration using the first cluster configuration and information received from the second node as part of the request. The method further comprises populating a first one or more local trust stores of a first one or more processes executing on the first node with a second one or more security certificates of a second one or more processes executing on the second node. The method further comprises writing the second cluster configuration to the distributed database and returning the second cluster configuration to the second node.

公开(公告)号：US11086846B2

公开(公告)日：2021-08-10

申请号：US16255780

申请日：2019-01-23

Applicant: VMware, Inc.

Inventor： Srinivas Neginhal ,  Medhavi Dhawan ,  Vjekoslav Brajkovic ,  Cheng Zhang ,  Jiaqi Chen ,  Ragnar Edholm ,  Rajneesh Bajpai

IPC: G06F16/00 ,  G06F16/23 ,  G06F16/245 ,  G06F16/27 ,  G06F16/22

Abstract: Certain aspects described herein are directed to methods and systems for updating a status of a first process. In certain aspects, a method includes periodically examining a first table stored in a consistent and distributed database, wherein the table includes a first indication of a status of the first process and a second indication of a status of a second process and the first process and the second process are clustered for implementing functions of a distributed application in a distributed manner. The method further includes determining that the first indication has not changed during a first time period and changing the status of the first process in a second table to reflect that the first process is non-operational, wherein a different share of workload associated with the distributed application is performed by the second process as compared to when the first process was operational.

公开(公告)号：US10901771B2

公开(公告)日：2021-01-26

申请号：US16255768

申请日：2019-01-23

Applicant: VMware, Inc.

Inventor： Srinivas Neginhal ,  Medhavi Dhawan ,  Vjekoslav Brajkovic ,  Cheng Zhang ,  Jiaqi Chen ,  David Tsai ,  Maithem Munshed ,  Zeeshan Lokhandwala ,  Ming Wen ,  Ragnar Edholm ,  Rajneesh Bajpai

IPC: G06F9/46 ,  G06F9/455 ,  H04L29/06 ,  G06F16/182 ,  G06F3/06

Abstract: Certain embodiments described relate to methods and systems for adding one or more nodes to a first cluster including a first node in a computer system. A method performed by the first node comprises retrieving a first cluster configuration associated with the first cluster from a distributed database through a first database server (DBS) and creating a second cluster configuration using the first cluster configuration and information received from a second node as part of a request to join the first cluster. The method further comprises populating a first one or more local trust stores of a first one or more processes executing on the first node with a second one or more security certificates of a second one or more processes executing on the second node. The method further comprises writing the second cluster configuration to the distributed database and returning the second cluster configuration to the second node.

公开(公告)号：US10819611B2

公开(公告)日：2020-10-27

申请号：US16211027

申请日：2018-12-05

Applicant: VMware, Inc.

Inventor： Zeeshan Lokhandwala ,  Medhavi Dhawan ,  Dahlia Malkhi ,  Michael Wei ,  Maithem Munshed ,  Ragnar Edholm

IPC: H04L12/26 ,  H04L12/707 ,  H04L12/24

Abstract: Techniques for implementing dynamic timeout-based fault detection in a distributed system are provided. In one set of embodiments, a node of the distributed system can set a timeout interval to a minimum value and transmit poll messages to other nodes in the distributed system. The node can further wait for acknowledgement messages from all of the other nodes, where the acknowledgement messages are responsive to the poll messages, and can check whether it has received the acknowledgement messages from all of the other nodes within the timeout interval. If the node has failed to receive an acknowledgement message from at least one of the other nodes within the timeout interval and if the timeout interval is less than a maximum value, the node can increment the timeout interval by a delta value and can repeat the setting, the transmitting, the waiting, and the checking steps.