Abstract: An approach is provided for improving query performance. A query is received whose execution includes a first join of tables having sets of records and includes a second join with a next table whose set of records is smaller than a set of transient records resulting from the first join. A threshold for a number of records in the next table is received. A first count of the transient records resulting from the first join is estimated. A second count of a number of records in the next table is determined. It is determined that the second count is less than the threshold. Based on the second count being less than the threshold and without using the first count, a query execution plan is generated to include a broadcast of the records in the next table to data slices without including a broadcast of the transient records.

Abstract: Systems and methods for enhancing security during access and retrieval of data with multi-cloud storage are disclosed. A method includes: receiving, by a computing device, data to be stored in a distributed computing environment; compressing, by the computing device, the received data; shredding, by the computing device, the compressed data into a plurality of data chunks; storing, by the computing device, the plurality of data chunks in a plurality of locations in the distributed computing environment; generating, by the computing device, a metadata file including a mapping of each of the plurality of data chunks and a corresponding location of the plurality of locations in the distributed computing environment in which the data chunk is stored; shredding, by the computing device, the metadata file into a plurality of file chunks; and storing, by the computing device, the plurality of file chunks in the distributed computing environment.

Abstract: The indication of a database backup process starting is received. A plurality of buffer manipulator threads are marked as active. A determination is made whether any of the plurality of buffer manipulator threads marked as active in the database backup process become idle. In response to determining that at least one buffer manipulator thread in the database backup process becomes idle, the at least one idle buffer manipulator thread is reassigned to a first largest tablespace in the database that has not completed the database backup process. The first largest tablespace has a largest storage capacity relative to other tablespaces in the database.

Abstract: The indication of a database backup process starting is received. A plurality of buffer manipulator threads are marked as active. A determination is made whether any of the plurality of buffer manipulator threads marked as active in the database backup process become idle. In response to determining that at least one buffer manipulator thread in the database backup process becomes idle, the at least one idle buffer manipulator thread is reassigned to a first largest tablespace in the database that has not completed the database backup process. The first largest tablespace has a largest storage capacity relative to other tablespaces in the database.

Abstract: Real-time summarization of an online meeting is accomplished using a cognitive system that analyzes meeting content and generates a mini-presentation, i.e., a small number of slides that condense more extensive details. The summary allows an attendee to easily and quickly review portions of the meeting that were missed, while the meeting is still ongoing. The cognitive system can customize the summary for the attendee based on the attendee's role or information in the meeting content which has previously been presented to the attendee. A user interface has a special scrollbar divided into multiple sections corresponding to different topics of the summary. The presentation window can switch from current content to previous content when the attendee selects a particular section. A feedback mechanism may also be used to assist the presenter with future presentations, based on subjects raised in audience interaction that were topics of the meeting.

Abstract: Systems and methods for enhancing security during access and retrieval of data with multi-cloud storage are disclosed. A method includes: receiving, by a computing device, data to be stored in a distributed computing environment; compressing, by the computing device, the received data; shredding, by the computing device, the compressed data into a plurality of data chunks; storing, by the computing device, the plurality of data chunks in a plurality of locations in the distributed computing environment; generating, by the computing device, a metadata file including a mapping of each of the plurality of data chunks and a corresponding location of the plurality of locations in the distributed computing environment in which the data chunk is stored; shredding, by the computing device, the metadata file into a plurality of file chunks; and storing, by the computing device, the plurality of file chunks in the distributed computing environment.

Abstract: As disclosed herein a computer-implemented method for managing an HA cluster includes activating, by a cluster manager, a monitoring process that monitors a database on a first node in a high-availability database cluster. The method further includes receiving an indication that the database on the first node is not healthy, initiating a failover operation for deactivating the database on the first node and activating a standby database on a second node in the high-availability database cluster providing an activated standby database, and ensuring that any additional databases on the first node are unaffected by the failover operation. A computer program product corresponding to the above method is also disclosed.

Abstract: As disclosed herein a computer-implemented method for managing an HA cluster includes activating, by a cluster manager, a monitoring process that monitors a database on a first node in a high-availability database cluster. The method further includes receiving an indication that the database on the first node is not healthy, initiating a failover operation for deactivating the database on the first node and activating a standby database on a second node in the high-availability database cluster providing an activated standby database, and ensuring that any additional databases on the first node are unaffected by the failover operation. A computer program product corresponding to the above method is also disclosed.