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1. 发明授权

US09336262B2 Accelerated transactions with precommit-time early lock release 有权
标题翻译：加速交易与预报时间早期锁定释放
公开(公告)号：US09336262B2
公开(公告)日：2016-05-10
申请号：US12898617
申请日：2010-10-05
申请人： Juchang Lee , Frank Renkes , Sangyong Hwang
发明人： Juchang Lee , Frank Renkes , Sangyong Hwang
IPC分类号： G06F17/00 , G06F17/30
CPC分类号： G06F17/30377 , G06F17/30351 , G06F17/30362 , G06F17/30445
摘要： A system, method and computer product for accelerating parallel database transactions. One or more data processors execute a first transaction on a database. The first transaction includes a transactional lock associated with each of one or more records to update the one or more records during the first transaction, and a pre-commit command to request acknowledgement of committing the updating of the one or more records during the first transaction. The one or more data processors execute a second transaction on the database in parallel with the first transaction. The second transaction includes a transactional lock associated with each of one or more records to update the one or more records during the second transaction, and a pre-commit command to request acknowledgement of committing the updating of the one or more records during the second transaction. The transactional locks of the first and second transactions are released before flushing log records associated with the first and second transactions.
摘要翻译：一种用于加速并行数据库事务的系统，方法和计算机产品。一个或多个数据处理器在数据库上执行第一个事务。第一事务包括与一个或多个记录中的每一个相关联的事务锁，以在第一事务期间更新一个或多个记录;以及预提交命令，用于在第一个事务期间请求确认提交一个或多个记录的更新。一个或多个数据处理器与第一事务并行地执行数据库上的第二事务。第二事务包括与一个或多个记录中的每一个相关联的事务锁，以在第二事务期间更新一个或多个记录;以及预提交命令，用于在第二次事务期间请求确认提交一个或多个记录的更新。在刷新与第一和第二事务相关联的日志记录之前，释放第一和第二事务的事务锁。

2. 发明申请

US20120084273A1 Accelerated Transactions With Precommit-Time Early Lock Release 有权
标题翻译：加速交易与预提早时锁定释放
公开(公告)号：US20120084273A1
公开(公告)日：2012-04-05
申请号：US12898617
申请日：2010-10-05
申请人： Juchang Lee , Frank Renkes , Sangyong Hwang
发明人： Juchang Lee , Frank Renkes , Sangyong Hwang
IPC分类号： G06F17/30
CPC分类号： G06F17/30377 , G06F17/30351 , G06F17/30362 , G06F17/30445
摘要： A system, method and computer product for accelerating parallel database transactions. One or more data processors execute a first transaction on a database. The first transaction includes a transactional lock associated with each of one or more records to update the one or more records during the first transaction, and a pre-commit command to request acknowledgement of committing the updating of the one or more records during the first transaction. The one or more data processors execute a second transaction on the database in parallel with the first transaction. The second transaction includes a transactional lock associated with each of one or more records to update the one or more records during the second transaction, and a pre-commit command to request acknowledgement of committing the updating of the one or more records during the second transaction. The transactional locks of the first and second transactions are released before flushing log records associated with the first and second transactions.
摘要翻译：一种用于加速并行数据库事务的系统，方法和计算机产品。一个或多个数据处理器在数据库上执行第一个事务。第一事务包括与一个或多个记录中的每一个相关联的事务锁，以在第一事务期间更新一个或多个记录;以及预提交命令，用于在第一个事务期间请求确认提交一个或多个记录的更新。一个或多个数据处理器与第一事务并行地执行数据库上的第二事务。第二事务包括与一个或多个记录中的每一个相关联的事务锁，以在第二事务期间更新一个或多个记录;以及预提交命令，用于在第二次事务期间请求确认提交一个或多个记录的更新。在刷新与第一和第二事务相关联的日志记录之前，释放第一和第二事务的事务锁。

3. 发明授权

US10185737B2 Distributed transaction management with tokens 有权
公开(公告)号：US10185737B2
公开(公告)日：2019-01-22
申请号：US14642941
申请日：2015-03-10
申请人： Frank Renkes , Juchang Lee
发明人： Frank Renkes , Juchang Lee
IPC分类号： G06F17/30
摘要： A system, method and computer product for managing distributed transactions of a database. A transaction manager is provided for each of a plurality of transactions of the database. Each transaction manager is configured to perform functions that include generating a transaction token that specifies data to be visible for a transaction on the database. The database contains both row and column storage engines, and the transaction token includes a transaction identifier (TID) for identifying committed transactions and uncommitted transactions. A last computed transaction is designated with a computed identifier (CID), record-level locking of records of the database is performed using the TID and CID to execute the transaction, and the plurality of transactions of the database are executed with each transaction manager.

4. 发明申请

US20120084274A1 Distributed Transaction Management With Tokens 有权
标题翻译：具有令牌的分布式事务管理
公开(公告)号：US20120084274A1
公开(公告)日：2012-04-05
申请号：US12898633
申请日：2010-10-05
申请人： Frank Renkes , Juchang Lee
发明人： Frank Renkes , Juchang Lee
IPC分类号： G06F17/30
CPC分类号： G06F17/30362 , G06F17/30321 , G06F17/30371
摘要： A system, method and computer product for managing distributed transactions of a database. A transaction manager is provided for each of a plurality of transactions of the database. Each transaction manager is configured to perform functions that include generating a transaction token that specifies data to be visible for a transaction on the database. The database contains both row and column storage engines, and the transaction token includes a transaction identifier (TID) for identifying committed transactions and uncommitted transactions. A last computed transaction is designated with a computed identifier (CID), record-level locking of records of the database is performed using the TID and CID to execute the transaction, and the plurality of transactions of the database are executed with each transaction manager.
摘要翻译：一种用于管理数据库的分布式事务的系统，方法和计算机产品。为数据库的多个事务中的每一个提供事务管理器。每个事务管理器被配置为执行包括生成事务令牌的功能，该事务令牌指定对于数据库上的事务可见的数据。数据库包含行和列存储引擎，并且事务令牌包括用于识别已提交事务和未提交事务的事务标识符（TID）。用计算的标识符（CID）指定最后计算的事务，使用TID和CID来执行数据库的记录级锁定以执行事务，并且与每个事务管理器一起执行数据库的多个事务。

5. 发明申请

US20150178343A1 Distributed Transaction Management With Tokens 审中-公开
标题翻译：具有令牌的分布式事务管理
公开(公告)号：US20150178343A1
公开(公告)日：2015-06-25
申请号：US14642941
申请日：2015-03-10
申请人： Frank Renkes , Juchang Lee
发明人： Frank Renkes , Juchang Lee
IPC分类号： G06F17/30
CPC分类号： G06F17/30362 , G06F17/30321 , G06F17/30371
摘要： A system, method and computer product for managing distributed transactions of a database. A transaction manager is provided for each of a plurality of transactions of the database. Each transaction manager is configured to perform functions that include generating a transaction token that specifies data to be visible for a transaction on the database. The database contains both row and column storage engines, and the transaction token includes a transaction identifier (TID) for identifying committed transactions and uncommitted transactions. A last computed transaction is designated with a computed identifier (CID), record-level locking of records of the database is performed using the TID and CID to execute the transaction, and the plurality of transactions of the database are executed with each transaction manager.
摘要翻译：一种用于管理数据库的分布式事务的系统，方法和计算机产品。为数据库的多个事务中的每一个提供事务管理器。每个事务管理器被配置为执行包括生成事务令牌的功能，该事务令牌指定对于数据库上的事务可见的数据。数据库包含行和列存储引擎，并且事务令牌包括用于识别已提交事务和未提交事务的事务标识符（TID）。用计算的标识符（CID）指定最后计算的事务，使用TID和CID来执行数据库的记录级锁定以执行事务，并且与每个事务管理器一起执行数据库的多个事务。

6. 发明授权

US09009182B2 Distributed transaction management with tokens 有权
标题翻译：使用令牌进行分布式事务管理
公开(公告)号：US09009182B2
公开(公告)日：2015-04-14
申请号：US12898633
申请日：2010-10-05
申请人： Frank Renkes , Juchang Lee
发明人： Frank Renkes , Juchang Lee
IPC分类号： G06F7/00 , G06F17/30
CPC分类号： G06F17/30362 , G06F17/30321 , G06F17/30371
摘要： A system, method and computer product for managing distributed transactions of a database. A transaction manager is provided for each of a plurality of transactions of the database. Each transaction manager is configured to perform functions that include generating a transaction token that specifies data to be visible for a transaction on the database. The database contains both row and column storage engines, and the transaction token includes a transaction identifier (TID) for identifying committed transactions and uncommitted transactions. A last computed transaction is designated with a computed identifier (CID), record-level locking of records of the database is performed using the TID and CID to execute the transaction, and the plurality of transactions of the database are executed with each transaction manager.
摘要翻译：一种用于管理数据库的分布式事务的系统，方法和计算机产品。为数据库的多个事务中的每一个提供事务管理器。每个事务管理器被配置为执行包括生成事务令牌的功能，该事务令牌指定对于数据库上的事务可见的数据。数据库包含行和列存储引擎，并且事务令牌包括用于识别已提交事务和未提交事务的事务标识符（TID）。用计算的标识符（CID）指定最后计算的事务，使用TID和CID来执行数据库的记录级锁定以执行事务，并且与每个事务管理器一起执行数据库的多个事务。

7. 发明授权

US10444990B2 Fast restart of applications using shared memory 有权
公开(公告)号：US10444990B2
公开(公告)日：2019-10-15
申请号：US14242642
申请日：2014-04-01
申请人： Yong Sik Kwon , Jaeyun Noh , Juchang Lee , Ji Hoon Jang , Sang Kyun Cha
发明人： Yong Sik Kwon , Jaeyun Noh , Juchang Lee , Ji Hoon Jang , Sang Kyun Cha
IPC分类号： G06F3/06 , G06F9/46 , G06F9/54 , G06F9/48 , G06F9/52 , G06F9/44 , G06F13/16 , G06F9/445 , G06F9/4401
摘要： Technologies are described for restarting an application while maintaining data in memory (e.g., using shared memory). For example, shared memory can be associated with an application. The shared memory can also be associated with a holder process to maintain the shared memory from the time the application stops to the time the application starts again. When the application starts, the shared memory can be associated with the started application. In addition, restart of in-memory databases can be provided using shared memory. For example, in-memory data can be maintained when a database process or database management system stops and starts (e.g., during a restart).

8. 发明授权

US09824134B2 Database system with transaction control block index 有权
公开(公告)号：US09824134B2
公开(公告)日：2017-11-21
申请号：US14553494
申请日：2014-11-25
申请人： Ivan Schreter , Juchang Lee , Mihnea Andrei , Changgyoo Park
发明人： Ivan Schreter , Juchang Lee , Mihnea Andrei , Changgyoo Park
IPC分类号： G06F17/30 , G06F15/16
CPC分类号： G06F17/30592 , G06F17/30353
摘要： A plurality of transactions is handled in a database. Each transaction includes a plurality of operations on at least one record in the database with at least two of the transactions being handled concurrently. Thereafter, a temporary timestamp is assigned to each record. The temporary timestamp are based, at least in part, on the corresponding transaction. Further, a final timestamp is assigned to each record with a commit operation. It can later be determined, using a visibility function and based on the assigned temporary timestamps and final timestamps, which of the records are visible in a consistent view for a first transaction. Based on such determination, access can be provided to those records determined to be visible to be accessed to the first transaction.

9. 发明申请

US20160147858A1 Log Forwarding to Avoid Deadlocks During Parallel Log Replay in Asynchronous Table Replication 有权
标题翻译：日志转发以避免在异步表复制期间的并行日志重放期间的死锁
公开(公告)号：US20160147858A1
公开(公告)日：2016-05-26
申请号：US14657854
申请日：2015-03-13
申请人： Juchang Lee , Chang-Gyoo Park , Hyoung-Jun Na , Deok-Hoe Kim
发明人： Juchang Lee , Chang-Gyoo Park , Hyoung-Jun Na , Deok-Hoe Kim
IPC分类号： G06F17/30
CPC分类号： G06F11/1469 , G06F11/1464 , G06F17/30368 , G06F17/30371 , G06F17/30377 , G06F17/30575 , G06F17/30578 , G06F17/30876 , G06F2201/80
摘要： Disclosed herein are system, method, and computer program product embodiments for removing a deadlock during replication from distributed source tables to a replica node. An embodiment operates by detecting a deadlock at a parallel log replayer at a replica node. A first replication log entry from a queue at the parallel log replayer is then selected based on whether removing the first replication log entry from the queue removes the deadlock. The first replication log entry is then forwarded to a waiting queue. A second replication log entry is then replayed at the parallel log replayer. After replaying the second replication log entry, the first replication log entry is replayed at the parallel log replayer.
摘要翻译：这里公开了用于在从分布式源表复制到复制节点的过程中去除死锁的系统，方法和计算机程序产品实施例。实施例通过检测复制节点处的并行日志重播器处的死锁而进行操作。然后根据是否从队列中删除第一个复制日志条目来删除死锁，来选择并行日志重播器中队列中的第一个复制日志条目。然后将第一个复制日志条目转发到等待队列。然后在并行日志重播器中重播第二个复制日志条目。重播第二个复制日志条目后，第一个复制日志条目将在并行日志重播器中重播。

10. 发明授权

US09165010B2 Logless atomic data movement 有权
标题翻译：无原则的原子数据运动
公开(公告)号：US09165010B2
公开(公告)日：2015-10-20
申请号：US13843986
申请日：2013-03-15
申请人： Franz Faerber , Juchang Lee , Ivan Schreter
发明人： Franz Faerber , Juchang Lee , Ivan Schreter
IPC分类号： G06F7/00 , G06F17/00 , G06F17/30
CPC分类号： G06F17/30371 , G06F3/0604 , G06F3/0638 , G06F3/0644 , G06F3/0647 , G06F3/065 , G06F3/0652 , G06F3/0673 , G06F3/0683 , G06F17/30117 , G06F17/30153 , G06F17/30315 , G06F17/30348 , G06F17/30377 , G06F17/30575 , G06F17/30587
摘要： A system and method of logless atomic data movement. An internal transaction is started within a multi-level storage architecture, the internal transaction to merge data from the first level storage structure to the second level storage structure. Committed data is read from a first level storage structure of the multi-level storage architecture as specified by the internal transaction. The committed data from the first level storage structure is inserted into a second level storage structure in a bulk insertion process, and the committed data is marked as being deleted from the first level storage. The internal transaction is then committed to the multi-level storage architecture when the committed data has been inserted into the second level storage structure.
摘要翻译：无原子数据运动的系统和方法。内部事务在多级存储架构内启动，内部事务将数据从第一级存储结构合并到第二级存储结构。从内部事务指定的多级存储架构的第一级存储结构读取提交的数据。来自第一级存储结构的提交的数据被插入到批量插入过程中的第二级存储结构中，并且所提交的数据被标记为从第一级存储器中删除。当提交的数据已插入到第二级存储结构中时，内部事务将被提交到多级存储架构。

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