In an approach to improve the field of multi-cloud environments by detecting data corruption between storage systems. Embodiments perform information tunneling on data transferring between a source storage system and a target storage system. Further, embodiments determine a checksum data of a data payload does not match an Internet Protocol (IP) packet extracted checksum and a blockchain based checksum and compare the checksum data at the target storage system with the IP packet extracted checksum and the blockchain based checksum to identify one or more checksum mismatches. Additionally, embodiments identify a corruption in a data payload based on the comparison between the checksum data at the target storage system and the IP packet extracted checksum and the blockchain based checksum, validate the corruption in the data payload, and update respective entities of identified corruption in the data payload.

Systems and methods are provided for managing execution budgets for computing tasks in distributed computing systems. Execution budgets may include a budgeted number of operation retries that may be performed by the distributed computing system in response to failure of an operation. Execution budgets may also or alternatively include a budgeted amount of time in which the distributed computing system may perform the operations of a computing task. When a distributed computing system exhausts the execution budget allotted for a computing task, then further execution of the computing task or portions thereof may be terminated.

In an embodiment, an apparatus includes a receiver circuit to: in response to a determination that the receiver circuit is in a high latency processing mode, transmit a hint signal to a transmitter circuit; receive a response message from the transmitter circuit; process the response message to reduce a current workload of the receiver circuit; and switch the receiver circuit from the high latency processing mode to a low latency processing mode. Other embodiments are described and claimed.

Replicated instances in a database environment provide for automatic failover and recovery. A monitoring component can periodically communicate with a primary and a secondary replica for an instance, with each capable of residing in a separate data zone or geographic location to provide a level of reliability and availability. A database running on the primary instance can have information synchronously replicated to the secondary replica at a block level, such that the primary and secondary replicas are in sync. In the event that the monitoring component is not able to communicate with one of the replicas, the monitoring component can attempt to determine whether those replicas can communicate with each other, as well as whether the replicas have the same data generation version. Depending on the state information, the monitoring component can automatically perform a recovery operation, such as to failover to the secondary replica or perform secondary replica recovery.

A PLC data log module with backup function is proposed, the module including an internal memory configured to store the log data and to transmit the stored log data to the external memory, a backup memory configured to back-up the log data transmitted from the internal memory to the external memory and to store the backup data, and a controller configured to transmit the backup data stored in the backup memory to the external memory by controlling the backup memory when the PLC is turned off or reset.

A system and method are provided for failure management for electronic transactions. An access request is received at a first server and from a client device, for a second server. The first server determines whether the second server is functional. If the second server is non-functional, the access request is stored in a storage associated with the first server. The second server is monitored until becoming functional. During the monitoring, a status request from the client device may be received and responsive to the status request, a status update is sent to the client device. Upon determining the second server is functional, the access request is sent to the second server, a response to the access request is received from the second server, and the response is sent to the client device.

A method obtains at least part of a file from a dispersed storage network (DSN) memory, and stores it in a data object cache. When the file is changed, a determination is made about where to store the changed file portions: in the data object cache or in the DSN. The changed file portions, for example a new copy of the part of the file obtained from the DSN, are encoded utilizing an error coding dispersal storage function, and stored in either the data object cache, or in the DSN memory.

A storage system comprises a non-volatile memory configured to store boot code and a control circuit connected to the non-volatile memory. In response to a first request from a host to transmit the boot code, the storage system commences transmission of the boot code to the host at a first transmission speed. Before successfully completing the transmission of the boot code to the host at the first transmission speed, it is determined the boot code transmission has failed. Therefore, the host will issue a second request for the boot code. In response to the second request for the boot code, and recognizing that this is a fallback condition because the previous transmission of the boot code failed, the storage apparatus re-transmits the boot code to the host at a lower transmission speed than the first transmission speed.

In some embodiments, apparatuses and methods are provided herein useful to providing seamless redelivery of missing data from a message broker to a requesting client computer. In some embodiments, there is provided a system for providing seamless redelivery of missing data including a requesting client computer generating a first data request in response to a user's e-commerce activity over an internet; a message broker comprising one or more first control circuits; a backup control circuit configured to copy a plurality of messages as a plurality of object data into an object store; and a reconciliation control circuit configured to: receive a second data request in response to a determination by the requesting client computer that a data loss has occurred; download the missing data from the object store; and provide the missing data to the message broker.

A memory controller interfaces with a dynamic random access memory (DRAM). The memory controller selectively places memory commands in a memory interface queue, and transmits the commands from the memory interface queue to a memory channel connected to at least one dynamic random access memory (DRAM). The transmitted commands are stored in a replay queue. A number of activate commands to a memory region of the DRAM is counted. Based on this count, a refresh control circuit signals that an urgent refresh command should be sent to the memory region. In response to detecting a designated type of error, a recovery sequence initiates to re-transmit memory commands from the replay queue. Designated error conditions can cause the recovery sequence to restart. If an urgent refresh command is pending when such a restart occurs, the recovery sequence is interrupted to allow the urgent refresh command to be sent.