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1.发明授权System of compressing a log stream using a scratch pad of logically deleted entries 有权使用逻辑删除条目的临时数据块压缩日志流的系统公开(公告)号：US06345280B1
公开(公告)日：2002-02-05
申请号：US09298383
申请日：1999-04-23
IPC分类号： G06F900
CPC分类号： G06F17/30144
摘要： Managing a log stream of a computer system. An entry of a log stream, desired to be removed from the log stream, but not eligible for removal, is logically deleted. Logical deletion keeps the entry on the log stream and indicates that the entry can be removed from the log stream when it is eligible. When the entry is eligible, it is removed. If a desired entry remains at the tail of the log stream for a given period of time, thus not all owing the removal of one or more undesired entries, the desired entry is rewritten to the head of the log stream and deleted from the tail. Thereafter, other logically deleted entries eligible for deletion are removed from the log stream.
摘要翻译： 管理计算机系统的日志流。 逻辑上删除日志流的条目，希望从日志流中删除，但不符合删除条件。 逻辑删除保留日志流中的条目，并指示条目在符合条件时可以从日志流中删除。 当条目符合条件时，它将被删除。 如果期望的条目保持在日志流的尾部一段给定的时间段内，因此不是所有的都被删除一个或多个不期望的条目，所以所需条目被重写到日志流的头部并从尾部删除。 此后，可以从日志流中删除符合条件删除的其他逻辑删除条目。
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2.发明授权System of compressing a log stream using a scratch pad of logically deleted entries 失效使用逻辑删除条目的临时数据块压缩日志流的系统
公开(公告)号：US6108667A
公开(公告)日：2000-08-22
申请号：US828465
申请日：1997-03-28
CPC分类号： G06F17/30144
摘要： Managing a log stream of a computer system. An entry of a log stream, desired to be removed from the log stream, but not eligible for removal, is logically deleted. Logical deletion keeps the entry on the log stream and indicates that the entry can be removed from the log stream when it is eligible. When the entry is eligible, it is removed. If a desired entry remains at the tail of the log stream for a given period of time, thus not allowing the removal of one or more undesired entries, the desired entry is rewritten to the head of the log stream and deleted from the tail. Thereafter, other logically deleted entries eligible for deletion are removed from the log stream.
摘要翻译： 管理计算机系统的日志流。 逻辑上删除日志流的条目，希望从日志流中删除，但不符合删除条件。 逻辑删除保留日志流中的条目，并指示条目在符合条件时可以从日志流中删除。 当条目符合条件时，它将被删除。 如果期望的条目保持在日志流的尾部一段给定的时间段内，因此不允许移除一个或多个不需要的条目，则将期望的条目重写到日志流的头部并从尾部删除。 此后，可以从日志流中删除符合条件删除的其他逻辑删除条目。
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3.发明授权Tail compression of a log stream using a scratch pad of logically deleted entries 失效使用逻辑删除条目的暂存卡尾部压缩日志流
公开(公告)号：US5966708A
公开(公告)日：1999-10-12
申请号：US827560
申请日：1997-03-28
CPC分类号： G06F17/30368 , Y10S707/99942 , Y10S707/99953
摘要： Managing a log stream of a computer system. An entry of a log stream, desired to be removed from the log stream, but not eligible for removal, is logically deleted. Logical deletion keeps the entry on the log stream and indicates that the entry can be removed from the log stream when it is eligible. When the entry is eligible, it is removed. If a desired entry remains at the tail of the log stream for a given period of time, thus not allowing the removal of one or more undesired entries, the desired entry is rewritten to the head of the log stream and deleted from the tail. Thereafter, other logically deleted entries eligible for deletion are removed from the log stream.
摘要翻译： 管理计算机系统的日志流。 逻辑上删除日志流的条目，希望从日志流中删除，但不符合删除条件。 逻辑删除保留日志流中的条目，并指示条目在符合条件时可以从日志流中删除。 当条目符合条件时，它将被删除。 如果期望的条目保持在日志流的尾部一段给定的时间段内，因此不允许移除一个或多个不需要的条目，则将期望的条目重写到日志流的头部并从尾部删除。 此后，可以从日志流中删除符合条件删除的其他逻辑删除条目。
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4.发明授权System of compressing the tail of a sparse log stream of a multisystem environment 失效压缩多系统环境的稀疏日志流的尾部的系统
公开(公告)号：US6125393A
公开(公告)日：2000-09-26
申请号：US827559
申请日：1997-03-28
CPC分类号： G06F11/3476 , G06F11/1471 , G06F11/348 , Y10S707/99953
摘要： A multisystem log stream of a multisystem environment is compressed. The oldest record needed for each system that can write or delete entries from the multisystem log stream is tracked, and that information is used in compression of the log stream. The block ids associated with those oldest records are maintained within a vector, and when the vector is updated, a determination is made as to whether the entry in the vector that it replaced previously contained the lowest block id in the vector. If so, all the records having block ids lower than the new lowest block id in the vector are deleted.
摘要翻译： 多系统环境的多系统日志流被压缩。 跟踪可以从多系统日志流中写入或删除条目的每个系统所需的最早的记录，并且该信息用于日志流的压缩。 与这些最旧的记录相关联的块ID保持在向量内，并且当更新向量时，确定先前替换的向量中的条目是否在向量中包含最低块id。 如果是这样，所有具有低于向量中新的最低块ID的块ID的记录将被删除。
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5.发明授权Method of one system of a multisystem environment taking over log entries owned by another system 失效多系统环境的一个系统的方法接管由另一个系统拥有的日志条目
公开(公告)号：US6076095A
公开(公告)日：2000-06-13
申请号：US827205
申请日：1997-03-28
CPC分类号： G06F9/466 , Y10S707/99931 , Y10S707/99938 , Y10S707/99953
摘要： One system of a multisystem environment takes over log entries owned by another system of the environment. When a system owning entries on a primary log stream is inactive (or a sync point manager on the system is inactive), another system of the multisystem environment writes the log entries corresponding to the inactive system to other locations. The entries within the other locations are not owned by any system. Thus, the resource managers associated with those log entries are eligible for restarting on any system of the multisystem environment. However, all resource managers involved in a common set of transactions are to restart on the same system. The other resource managers can restart on another system. When one of the resource managers restarts on a system, the system takes back ownership of the entries associated with the common set of transactions.
摘要翻译： 多系统环境的一个系统接管另一个环境系统拥有的日志条目。 当拥有主日志流上的条目的系统处于非活动状态（或系统上的同步点管理器处于非活动状态）时，多系统环境的另一个系统将与非活动系统相对应的日志条目写入其他位置。 其他位置的条目不属于任何系统。 因此，与这些日志条目相关联的资源管理器有资格在多系统环境的任何系统上重新启动。 但是，涉及一组通用事务的所有资源管理器都将在同一系统上重新启动。 其他资源管理器可以在另一个系统上重新启动。 当一个资源管理器在系统上重新启动时，系统将收回与公共事务集相关联的条目的所有权。
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公开(公告)号：US5999935A
公开(公告)日：1999-12-07
申请号：US827214
申请日：1997-03-28
CPC分类号： G06F11/1471 , Y10S707/99942 , Y10S707/99953
摘要： A multisystem log stream of a multisystem environment is compressed. The oldest record needed for each system that can write or delete entries from the multisystem log stream is tracked, and that information is used in compression of the log stream. The block ids associated with those oldest records are maintained within a vector, and when the vector is updated, a determination is made as to whether the entry in the vector that it replaced previously contained the lowest block id in the vector. If so, all the records having block ids lower than the new lowest block id in the vector are deleted.
摘要翻译： 多系统环境的多系统日志流被压缩。 跟踪可以从多系统日志流中写入或删除条目的每个系统所需的最早的记录，并且该信息用于日志流的压缩。 与这些最旧的记录相关联的块ID保持在向量内，并且当更新向量时，确定先前替换的向量中的条目是否在向量中包含最低块id。 如果是这样，所有具有低于向量中新的最低块ID的块ID的记录将被删除。
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公开(公告)号：US5920875A
公开(公告)日：1999-07-06
申请号：US827292
申请日：1997-03-28
IPC分类号： G06F17/40
CPC分类号： G06F17/30153 , Y10S707/99953 , Y10S707/99957
摘要： When a log stream has a determined amount of reusable space, the log stream is compressed in order to free up the reusable space. Compression of the log stream includes rewriting one or more active entries located at one or more positions of the log stream to one or more other locations, either within the same log stream or on another log stream. Thereafter, the rewritten entries are deleted from their previous positions within the log stream. Additionally, one or more logically deleted entries of the log stream is removed from the log stream. The resulting log stream is a compressed log stream.
摘要翻译： 当日志流具有确定量的可重用空间时，日志流被压缩以释放可重用的空间。 压缩日志流包括将位于日志流的一个或多个位置的一个或多个活动条目重写到同一个日志流或另一个日志流中的一个或多个其他位置。 此后，重写的条目从日志流中的先前位置被删除。 此外，日志流中的一个或多个逻辑删除的条目将从日志流中删除。 生成的日志流是一个压缩的日志流。
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8.发明授权One system of a multisystem environment taking over log entries owned by another system 失效多系统环境的一个系统接管另一个系统拥有的日志条目
公开(公告)号：US06092084A
公开(公告)日：2000-07-18
申请号：US827293
申请日：1997-03-28
CPC分类号： G06F11/2023 , G06F11/2035 , G06F11/2097 , Y10S707/99931 , Y10S707/99938 , Y10S707/99953
摘要： One system of a multisystem environment takes over log entries owned by another system of the environment. When a system owning entries on a primary log stream is inactive (or a sync point manager on the system is inactive), another system of the multisystem environment writes the log entries corresponding to the inactive system to other locations. The entries within the other locations are not owned by any system. Thus, the resource managers associated with those log entries are eligible for restarting on any system of the multisystem environment. However, all resource managers involved in a common set of transactions are to restart on the same system. The other resource managers can restart on another system. When one of the resource managers restarts on a system, the system takes back ownership of the entries associated with the common set of transactions.
摘要翻译： 多系统环境的一个系统接管另一个环境系统拥有的日志条目。 当拥有主日志流上的条目的系统处于非活动状态（或系统上的同步点管理器处于非活动状态）时，多系统环境的另一个系统将与非活动系统相对应的日志条目写入其他位置。 其他位置的条目不属于任何系统。 因此，与这些日志条目关联的资源管理器有资格在多系统环境的任何系统上重新启动。 但是，涉及一组通用事务的所有资源管理器都将在同一系统上重新启动。 其他资源管理器可以在另一个系统上重新启动。 当一个资源管理器在系统上重新启动时，系统将收回与公共事务集相关联的条目的所有权。
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9.发明授权
公开(公告)号：US5956735A
公开(公告)日：1999-09-21
申请号：US827558
申请日：1997-03-28
CPC分类号： G06F17/30368 , G06F17/40 , Y10S707/99953 , Y10S707/99957
摘要： When a log stream has a determined amount of reusable space, the log stream is compressed in order to free up the reusable space. Compression of the log stream includes rewriting one or more active entries located at one or more positions of the log stream to one or more other locations, either within the same log stream or on another log stream. Thereafter, the rewritten entries are deleted from their previous positions within the log stream. Additionally, one or more logically deleted entries of the log stream is removed from the log stream. The resulting log stream is a compressed log stream.
摘要翻译： 当日志流具有确定量的可重用空间时，日志流被压缩以释放可重用的空间。 压缩日志流包括将位于日志流的一个或多个位置的一个或多个活动条目重写到同一个日志流或另一个日志流中的一个或多个其他位置。 此后，重写的条目从日志流中的先前位置被删除。 此外，日志流中的一个或多个逻辑删除的条目将从日志流中删除。 生成的日志流是一个压缩的日志流。
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