Salesforce Com, Inc.

Salesforce, Inc.

Alan Arbizu

Jesse Yarbro Collins

Mikhail Chainani

Scott Hansma

Ronald Yang

Vijayanth Devadhar

Ashwini Bijwe

Andrey Dmitriyevich Gusev

Sridevi Gopala Krishnan

Chen Liu

Xiaodan Wang

Olumayokun Obembe

Ping-Hsiu Hsieh

Ilya Zaslavsky

Alex Ovesea

Andrey Gusev

Methods and systems for making effective use of system resources. A plurality of requests for access to a resource are received. Each request has an associated group of features. The group of features for each request is analyzed to collect observations about the plurality of requests. A function to predict an outcome of a subsequent request is generated based on the observations. Resources are allocated to service the subsequent request based on the function.

Methods and systems for making effective use of system resources

Techniques are disclosed relating to processing data stored within database tables in a parallelized manner. In various embodiments, a computer system maintains a database having a database table storing data for a plurality of tenants and an index structure storing indexes for accessing data stored in the database table. In some embodiments, the computer system receives, from a particular tenant, a request to perform a task that includes operating on particular data. In some embodiments, the computer system determines a portion of the index structure corresponding to the particular tenant and divides a range of indexes within that portion into a plurality of index sub-ranges. In various embodiments, the computer system processes portions of the task in parallel by determining an index sub-range for each of a plurality of threads and causing each of the threads to operate on a portion of the particular data specified by its index sub-range.

Techniques for processing database tables using indexes

Techniques and architectures to provide multiple application servers each having at least one connection agent and at least one enabler agent and at least one database organized as multiple nodes. An error condition between a first connection agent and a first database node is detected. The first connection agent indicates that the first database node is unavailable to stop attempts to access the first database node by a first application server. A first enabler agent periodically checks availability of the first database node. The first database node is indicated as available in response to a pre-selected number of successful attempts to contact the first database node with the first enabler agent. The first database node is accessed with the application server in response to the indication that the first database node is available.

Techniques and architectures for recovering from a service disruption in a multi-server environment

Migration specific action requests to perform a set of migration specific actions are sent from a source system instance to a target system instance. Migration specific action responses are received from the target system instance. Based on the migration specific action responses, traffic lights for resource utilization of the target system instance are determined. Based on the traffic lights, a concurrency limit is determined for the specific time. The concurrency limit is applied to scale a total number of ongoing migration specific actions to be requested of the target system instance at the specific time.

Migration flow control

Migration configuration data for an organization migration to move application data and application services of a to-be-migrated organization hosted at a source system instance to a target system instance is received. Migration components respectively representing to-be-migrated systems of record in a to-be-migrated organization are registered. In response to receiving an instruction to enter a specific organization migration state, migration steps for each migration component in the migration components are identified for execution in the specific organization migration state. Each migration component in the migration components automatically executes migration steps determined for each such migration component for execution in the specific organization migration state.

Orchestration engine for migrating application data and application services using migration steps in migration component

In a computing environment having multiple application servers each having at least one connection agent and at least one pause agent and a database node, detecting an error condition between a first application server from the multiple application servers and the database node. Indicating that the database node is unavailable to stop attempts to access the database node by a first application server. The attempts to access the database node are paused without an indication of the database node being unavailable to a source of the attempt to access the database node. Checking periodically, with the first application server, availability of the database node. Indicating that the database node is available in response to a pre-selected number of successful attempts to contact the database node with the first application server.

Techniques and architectures for managing database failure in a single-node database architecture

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Foster City, CA, United States of America

Alan Arbizu