Abstract: Embodiments of the invention are directed to synchronous multi-point update of associated text. Aspects include receiving, from a user, a request to associate a first text with one or more other instances of the first text and looking up the first text in a text association table. Based on determining that no entry in the text association table corresponds to the first text, aspects include creating an entry in the text association table corresponding to the first text. Aspects also include adding an address of the first text to the entry in the text association table. Based on detecting a change to one of the first text and one of the one or more other instances of the first text, aspects further include updating the first text and each of the one or more other instances of the first text that was not changed.

Abstract: Aspects include applying a patch to a first instance of software code and verifying that the first instance of the software code with the patch applied is operating as expected. The verifying includes sending a request to the first instance of the software code and sending the request to a second instance of the software code where the patch was previously applied. The verifying also includes comparing a first result received from the first instance of the software code in response to the request and a second result received from the second instance of the software code in response to the request. The verifying further includes determining that the first instance of the software code with the patch applied is operating as expected based on the first result being within a similarity threshold of the second result.

Abstract: Embodiments of the present disclosure relate to a method, system, and computer program product for generating one or more in-memory data structures for data access. According to the method, target data associated with a database is identified. Further, the method determines at least one data structure for the target data based on at least one access pattern of the target data in a plurality of historical queries against the database, wherein the target data is accessed in execution of the plurality of historical queries. The method further implements the at least one data structure in a memory to store the target data. The at least one data structure is used for further access to the target data in execution of a further query against the database.

Abstract: An embodiment includes deriving usage data associated with records of a database by monitoring requests to perform read operations on the records of the database. The embodiment generates record correlation data representative of correlations between respective groups of records of the database by parsing the usage data associated with the records of the database. The embodiment stores a plurality of records received as respective write requests during a first time interval in an intermediate storage medium. The embodiment identifies a correlation in the record correlation data between a first record of the plurality of records and a second record of the plurality of records. The embodiment selects, responsive to identifying the correlation, a first location in the database for writing the first record and a second location in the database for writing the second record based on a proximity of the first location to the second location.

Abstract: Embodiments of the invention are directed to database replication using heterogenous encoding. Aspects include obtaining a database and analyzing a data pattern of data in the database. Aspects also include identifying a plurality of candidate encoding formats and evaluating a computing cost for encoding the database for each of the plurality of candidate encoding formats. Aspects further include selecting an encoding format from the plurality of candidate encoding formats based at least in part on the computing cost and storing a backup copy of the database using the encoding format.

Abstract: Embodiments of the present invention relate to password authentication. According to an embodiment of the present invention, a password associated with a user identification is received from a user device. The password is authenticated based on a preset relationship between a seed password and a graphical password associated with the user identification. The seed password consists of a string of characters. The graphical password is a directed path traversing all keys of a keypad in an order. Each of the keys represents one of the characters and is associated with an order number according to the order of the keys being traversed. The preset relationship is that the password consists of respective order numbers associated with respective keys representing corresponding characters of the seed password.

Abstract: Embodiments of the present disclosure relate to a method, system and computer program product for service retention in a computing environment. According to the method, a deprovision request for deprovisioning a target service instance provisioned in a computing environment is received. In response to the deprovision request, a retention policy associated with the target service instance is determined. The retention policy indicates an action to be applied on the target service instance. The action causes a resource usage level of the target service instance to reduce. Based on the retention policy, the target service instance is modified to obtain a retention service instance provisioned in the computing environment for use in restoration of the target service instance.

Abstract: Methods, computer program products, and/or systems are provided that perform the following operations: in a data replication environment, analyzing a database workload to generate a knowledge base of information related to compression; dividing a transfer data stream into different segments based, at least in part, on the knowledge base; obtaining candidate compression types for the transfer data stream based, at least in part, on the knowledge base; assigning respective compression types of the candidate compression types to the different segments; generating compressed segments based, at least in part, on the respective compression types assigned to the different segments; and providing the compressed segments to a replication target.

Abstract: Shared materialized views are maintained during data changes to the primary data and during creation of new materialized views. Shared data stored for use by shared materialized views is distinguished from data stored by an independent materialized view. A view selector manages data updates to shared materialized views and corresponding mapping table. The view selector directs movement of data between a shared materialized view and an independent materialized view through the lifecycle of the materialized views.

Abstract: A method, system and computer program product for container image migration service is provided. The method comprises identifying a latest version of a first customer container image stored in a container image repository. The method further comprises determining the latest version of the first customer container image is a migration image from a last version of the first customer container image; determining a set of commands in the Docker file of the last version of the first customer container image that have migrated to a corresponding set of commands in the Docker file of the migration image; identifying a latest version of a second customer container image having at least one Docker file command in common with at least one command in the set of commands; and recommending imminent migration of the second customer container image to include migration of the at least one Docker file command.

Abstract: In an approach for a sparse information sharing system, a processor receives a request from a host owner for a host to become a server of an information sharing system, wherein the request specifies at least one type of information the server will maintain and provide to visitors of the server. A processor syncs the server with other servers of the information sharing system with information of the specified at least one type of information. A processor, responsive to the server receiving updated information from a visitor of the server, notifies the other servers of the updated information.

Abstract: In an approach to improve asynchronous replication in database clusters embodiments retain committed transactions during database cluster replication. Embodiments build and run asynchronous replication logic using database nodes running as one or more standalone nodes, wherein the asynchronous replication logic is responsible for data replication from a primary database node to one or more secondary database nodes. Embodiments register a replication reader to a sender node to replicate journal logs and replay the journal logs on the one or more secondary database nodes. Further, embodiments monitor replication lag metrics from the sender node and notify a replication source and a replication target of a generated replication plan, wherein the cluster controller instructs the replication source and the replication target to be ready to initiate the replication plan. Additionally, embodiments adjust a replication plan to allow the asynchronous replication logic to catch up and complete uncommitted transactions.

Abstract: Authentication management by receiving a request to initiate an authentication from a computing device of a user, directing the request to a selected authentication service of a plurality of authentication services, wherein the selected authentication service is determined dynamically based on respective authentication metrics of the plurality of authentication services, receiving authentication information via the selected authentication service, and authenticating the user based on the received authentication information.

Abstract: A query string for an encrypted database storing a plurality of encrypted data records is received from a requestor. The query string is segmented to obtain at least one word. The at least one word is encrypted with the irreversible encryption algorithm to obtain at least one encrypted word. At least one first encrypted item with a co-occurrence weight higher than a preset threshold based on the at least one encrypted word and a co-occurrence statistics model is acquired. The co-occurrence statistics model is built to provide co-occurrence weights, each indicating a probability that the at least one encrypted word appears in a first encrypted data item of the plurality of encrypted data records. At least one second encrypted data item corresponding to the at least one first encrypted data item is acquired from the plurality of encrypted data records.

Abstract: A method, a device and a computer program product for service allocation are proposed. In the method, a first allocation scheme for allocating a set of services to a set of containers is determined based on respective measurements of a plurality of service attributes related to each of the set of services in execution and respective importance levels of the plurality of service attributes. For a container of the set of containers, respective total measurements of the plurality of service attributes related to at least one of the set of services to be allocated to the container in the first allocation scheme are determined. In accordance with a determination that a total measurement of the respective total measurements exceeds a corresponding measurement threshold, the respective importance levels for use in determining a further allocation scheme for allocating the set of services are updated.

Abstract: An embodiment includes deriving usage data associated with records of a database by monitoring requests to perform read operations on the records of the database. The embodiment generates record correlation data representative of correlations between respective groups of records of the database by parsing the usage data associated with the records of the database. The embodiment stores a plurality of records received as respective write requests during a first time interval in an intermediate storage medium. The embodiment identifies a correlation in the record correlation data between a first record of the plurality of records and a second record of the plurality of records. The embodiment selects, responsive to identifying the correlation, a first location in the database for writing the first record and a second location in the database for writing the second record based on a proximity of the first location to the second location.

Abstract: A database is selected from a plurality of databases included in the distributed database cluster. A shard map of the database is acquired, wherein the shard map includes a distribution of a plurality of shards on the plurality of nodes, and one or more nodes of the plurality of nodes each includes at least one shard of an old version of the database to be upgraded to a new version. A sustainable serviceability of the database corresponding to each of the one or more nodes is predicted according to the shard map based on the assumption that the at least one shard of each of the one or more nodes has been upgraded from the old version to the new version.

Abstract: Embodiments of the present disclosure relate to a method for building an application. According to the method, a request is received from a building environment to acquire at least one component for executing at least one function of at least one feature of the application. The at least one feature is to be deployed to at least one target node in a distributed service platform comprising a plurality of nodes. The at least one target node and the at least one component are determined based on the request. The at least one component is acquired from the at least one target node. The at least one component is sent to the building environment for building the at least one feature.

Abstract: In an embodiment of the present invention, a checkpoint is received, the checkpoint indicating at least one source position of unprocessed object(s) of a plurality of objects on at least one source shard in a database system. In response to detecting a shard change related to the checkpoint to the at least one source shard, the shard change resulting in that the at least one source shard is updated to at least one destination shard, a mapping view is generated for representing position change of the unprocessed object(s) related to the shard change. An updated checkpoint is determined for indicating the at least one destination position of the unprocessed object(s) of the plurality of objects on at least one destination shard in the database system based on the mapping view. With these embodiments, the checkpoint may be managed in a more effective way.

Abstract: A trust rule between a first service and a second service in a plurality of services deployed in a distributed system is received; the trust rule defines whether the first service is allowed to access the second service. A trust tree is obtained for the distributed system, and the trust tree comprises a plurality of certificates for accessing the plurality of services. A first group of certificates is selected for the first service based on the trust rule and the trust tree, and the first group of certificates enables the first service to access the second service.