Patents by Inventor Maithem MUNSHED
Maithem MUNSHED has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11907745Abstract: 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.Type: GrantFiled: January 25, 2021Date of Patent: February 20, 2024Assignee: VMware, Inc.Inventors: Srinivas Neginhal, Medhavi Dhawan, Vjekoslav Brajkovic, Cheng Zhang, Jiaqi Chen, David Tsai, Maithem Munshed, Zeeshan Lokhandwala, Ming Wen, Ragnar Edholm, Rajneesh Bajpai
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Publication number: 20230124036Abstract: Garbage collection processing in a distributed shared log system includes a client identifying obsoleted log entries for a shared data object. The client sends information associated with the identified obsoleted log entries to a shared log server. The shared log server receives information associated with obsoleted log entries from all clients in the distributed shared log system and uses the information to delete the obsoleted log entries. The shared log server can update a snapshot mark to indicate the earliest time that a snapshot of the shared log can be taken. The snapshot mark can be updated based on the information associated with obsoleted log entries.Type: ApplicationFiled: December 20, 2022Publication date: April 20, 2023Inventors: Maithem MUNSHED, Xin LI, Wenbin ZHU, Anny MARTINEZ MANZANILLA, Michael WEI
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Patent number: 11561957Abstract: Garbage collection processing in a distributed shared log system includes a client identifying obsoleted log entries for a shared data object. The client sends information associated with the identified obsoleted log entries to a shared log server. The shared log server receives information associated with obsoleted log entries from all clients in the distributed shared log system and uses the information to delete the obsoleted log entries. The shared log server can update a snapshot mark to indicate the earliest time that a snapshot of the shared log can be taken. The snapshot mark can be updated based on the information associated with obsoleted log entries.Type: GrantFiled: May 15, 2020Date of Patent: January 24, 2023Assignee: VMware, Inc.Inventors: Maithem Munshed, Xin Li, Wenbin Zhu, Anny Martinez Manzanilla, Michael Wei
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Patent number: 11392567Abstract: A shared log system can provide a key-index structure (main map) that allows clients (users) to access the state of objects stored in the shared log system. The client can define secondary indices on the main map to provide access to the data that are tailored to the client's data needs. Each client can generate their own customized set of secondary indices different from other clients.Type: GrantFiled: October 30, 2017Date of Patent: July 19, 2022Assignee: VMWARE, INC.Inventors: Michael Wei, Dahlia Malkhi, Medhavi Dhawan, Maithem Munshed, Anny Martinez Manzanilla, Roger Michoud
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Patent number: 11381456Abstract: Some embodiments provide a method that, at a first machine that operates at a first physical site as a primary global manager for a logical network spanning a plurality of physical sites, receives a set of ordered data describing a configuration of the logical network. The method stores, in a particular order, the received set of ordered data in a first database located at the first physical site. Through a channel between (i) the first machine and (ii) a second machine that operates at a second physical site as a secondary global manager for the logical network in case of failure of the primary global manager, the method provides the set of ordered data in the particular order for the second machine to store in a second database in the particular order. The second database located at the second physical site.Type: GrantFiled: June 19, 2020Date of Patent: July 5, 2022Assignee: VMWARE, INC.Inventors: Anny Martinez Manzanilla, Xiaoqin Ma, Maithem Munshed, Srinivas Neginhal, Medhavi Dhawan, Cheng Zhang
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Patent number: 11334405Abstract: Disclosed are a method and system for implementing a distributed persistent queue. To implement the queue, an API is defined that includes a command to enqueue an object onto the queue, to obtain the ordering of all objects in the queue and to remove any item from the queue. Enqueuing an object includes obtaining a unique ID for the object from a generator and then storing the object in a persistent shared log, which provides persistent storage for the queue. Obtaining an ordering of all objects in the persistent queue includes receiving for each object stored in the queue a pair of values, the first being the unique ID and the second being a sequence number from the persistent shared log. Regardless of the host computer system making the request for the ordering of objects in the queue the ordering provided to each host computer system is the same.Type: GrantFiled: December 12, 2019Date of Patent: May 17, 2022Assignee: VMware, Inc.Inventors: Sundar Sridharan, Maithem Munshed, Srinivas Neginhal, Medhavi Dhawan, Pavan kumar Anumula
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Publication number: 20210357385Abstract: Garbage collection processing in a distributed shared log system includes a client identifying obsoleted log entries for a shared data object. The client sends information associated with the identified obsoleted log entries to a shared log server. The shared log server receives information associated with obsoleted log entries from all clients in the distributed shared log system and uses the information to delete the obsoleted log entries. The shared log server can update a snapshot mark to indicate the earliest time that a snapshot of the shared log can be taken. The snapshot mark can be updated based on the information associated with obsoleted log entries.Type: ApplicationFiled: May 15, 2020Publication date: November 18, 2021Inventors: Maithem MUNSHED, Xin LI, Wenbin ZHU, Anny MARTINEZ MANZANILLA, Michael WEI
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Publication number: 20210314215Abstract: Some embodiments provide a method that, at a first machine that operates at a first physical site as a primary global manager for a logical network spanning a plurality of physical sites, receives a set of ordered data describing a configuration of the logical network. The method stores, in a particular order, the received set of ordered data in a first database located at the first physical site. Through a channel between (i) the first machine and (ii) a second machine that operates at a second physical site as a secondary global manager for the logical network in case of failure of the primary global manager, the method provides the set of ordered data in the particular order for the second machine to store in a second database in the particular order. The second database located at the second physical site.Type: ApplicationFiled: June 19, 2020Publication date: October 7, 2021Inventors: Anny Martinez Manzanilla, Xiaoqin Ma, Maithem Munshed, Srinivas Neginhal, Medhavi Dhawan, Cheng Zhang
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Patent number: 11057277Abstract: Techniques disclosed herein provide an approach for managing aggregation service hierarchies. In some embodiments, a hierarchy of an aggregation service is identified. The hierarchy comprises a plurality of nodes, where a respective node is associated with at least one host computer. The aggregation service places resource consumers based on the nodes. A host computer is assigned as a child host of a leaf node based on a clustering heuristic. The clustering heuristic requires the host computer to have access to at least one resource that is accessible to an existing child host of the leaf node. A resource consumer associated with the leaf node is executed on the host computer.Type: GrantFiled: April 8, 2019Date of Patent: July 6, 2021Assignee: VMWARE, INC.Inventors: Vadim Spivak, Maithem Munshed, Amar Padmanabhan, Michi Mutsuzaki
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Patent number: 11055184Abstract: A log unit provides a shared log for recording updates on data objects. Garbage collection is performed locally and in-place by the log unit. In a marking portion of the garbage collection process, the log unit identifies and marks log entries that record supersedable updates. In a deallocation portion of the process, the log unit deallocates at least portions of the marked log entries that contain supersedable updates.Type: GrantFiled: December 19, 2018Date of Patent: July 6, 2021Assignee: VMWARE, INC.Inventors: Michael Wei, Maithem Munshed, Anny Martinez Manzanilla, Zeeshan Altaf Lokhandwala, Saeed A Behnam, Medhavi Dhawan, Dahlia Malkhi
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Publication number: 20210182130Abstract: Disclosed are a method and system for implementing a distributed persistent queue. To implement the queue, an API is defined that includes a command to enqueue an object onto the queue, to obtain the ordering of all objects in the queue and to remove any item from the queue. Enqueuing an object includes obtaining a unique ID for the object from a generator and then storing the object in a persistent shared log, which provides persistent storage for the queue. Obtaining an ordering of all objects in the persistent queue includes receiving for each object stored in the queue a pair of values, the first being the unique ID and the second being a sequence number from the persistent shared log. Regardless of the host computer system making the request for the ordering of objects in the queue the ordering provided to each host computer system is the same.Type: ApplicationFiled: December 12, 2019Publication date: June 17, 2021Inventors: Sundar SRIDHARAN, Maithem MUNSHED, Srinivas NEGINHAL, Medhavi DHAWAN, Pavan kumar ANUMULA
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Publication number: 20210141660Abstract: 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.Type: ApplicationFiled: January 25, 2021Publication date: May 13, 2021Inventors: Srinivas NEGINHAL, Medhavi DHAWAN, Vjekoslav BRAJKOVIC, Cheng ZHANG, Jiaqi CHEN, David TSAI, Maithem MUNSHED, Zeeshan LOKHANDWALA, Ming WEN, Ragnar EDHOLM, Rajneesh BAJPAI
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Patent number: 10901771Abstract: 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.Type: GrantFiled: January 23, 2019Date of Patent: January 26, 2021Assignee: VMware, Inc.Inventors: Srinivas Neginhal, Medhavi Dhawan, Vjekoslav Brajkovic, Cheng Zhang, Jiaqi Chen, David Tsai, Maithem Munshed, Zeeshan Lokhandwala, Ming Wen, Ragnar Edholm, Rajneesh Bajpai
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Patent number: 10877881Abstract: A log unit provides a shared log for recording updates on data objects. Garbage collection is performed locally and in-place by the log unit. In a marking portion of the garbage collection process, the log unit identifies and marks log entries that record mergeable updates. In a deallocation portion of the process, the log unit merges one or more mergeable log entries and deallocates at least portions of the merged log entries.Type: GrantFiled: January 11, 2019Date of Patent: December 29, 2020Assignee: VMware, Inc.Inventors: Michael Wei, Maithem Munshed, Anny Martinez Manzanilla, Zeeshan Altaf Lokhandwala, Saeed A Behnam, Medhavi Dhawan, Dahlia Malkhi
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Patent number: 10819611Abstract: 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.Type: GrantFiled: December 5, 2018Date of Patent: October 27, 2020Assignee: VMware, Inc.Inventors: Zeeshan Lokhandwala, Medhavi Dhawan, Dahlia Malkhi, Michael Wei, Maithem Munshed, Ragnar Edholm
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Publication number: 20200233689Abstract: 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.Type: ApplicationFiled: January 23, 2019Publication date: July 23, 2020Inventors: Srinivas NEGINHAL, Medhavi Dhawan, Vjekoslav Brajkovic, Cheng Zhang, Jiaqi Chen, David Tsai, Maithem Munshed, Zeeshan Lokhandwala, Ming Wen, Ragnar Edholm, Rajneesh Bajpai
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Publication number: 20200226060Abstract: A log unit provides a shared log for recording updates on data objects. Garbage collection is performed locally and in-place by the log unit. In a marking portion of the garbage collection process, the log unit identifies and marks log entries that record mergeable updates. In a deallocation portion of the process, the log unit merges one or more mergeable log entries and deallocates at least portions of the merged log entries.Type: ApplicationFiled: January 11, 2019Publication date: July 16, 2020Inventors: Michael Wei, Maithem Munshed, Anny Martinez Manzanilla, Zeeshan Altaf Lokhandwala, Saeed A. Behnam, Medhavi Dhawan, Dahlia Malkhi
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Publication number: 20200201721Abstract: A log unit provides a shared log for recording updates on data objects. Garbage collection is performed locally and in-place by the log unit. In a marking portion of the garbage collection process, the log unit identifies and marks log entries that record supersedable updates. In a deallocation portion of the process, the log unit deallocates at least portions of the marked log entries that contain supersedable updates.Type: ApplicationFiled: December 19, 2018Publication date: June 25, 2020Inventors: Michael Wei, Maithem Munshed, Anny Martinez Manzanilla, Zeeshan Altaf Lokhandwala, Saeed A Behnam, Medhavi Dhawan, Dahlia Malkhi
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Publication number: 20200186455Abstract: 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.Type: ApplicationFiled: December 5, 2018Publication date: June 11, 2020Inventors: Zeeshan Lokhandwala, Medhavi Dhawan, Dahlia Malkhi, Michael Wei, Maithem Munshed, Ragnar Edholm
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Patent number: 10649981Abstract: A shared log in a distributed system provides for direct access to the most current data state of an object stored in the shared log. Directly accessing the data state of an object obviates the need for a client to replay all the transactions stored in the shared log made on the object.Type: GrantFiled: October 23, 2017Date of Patent: May 12, 2020Assignee: VMware, Inc.Inventors: Michael Wei, Dahlia Malkhi, Medhavi Dhawan, Maithem Munshed, Anny Martinez Manzanilla, Roger Michoud, Zeeshan Altaf Lokhandwala