Abstract: Provided are a computer program product, system, and method for selective write control in accordance with the present description. In one aspect, a write operation which is associated with a read operation, may be selectively discarded if write operations have been disabled and if the write operation is directed to update a designated write operation acceptance area such as metadata associated with the target data set, for example. As a result, the read operation may be permitted to proceed and will not fail because the associated write operation was discarded rather than attempting to commit the write operation to the designated write operation acceptance area, thereby avoiding an error condition for a storage unit such as a volume, in which write operations have been disabled. Accordingly, applications which seek to perform read operations may be permitted to access data stored on such a volume. Other aspects are described.

Abstract: A mechanism is provided in a data processing system for managing filesystem inodes. The mechanism monitors inode consumption in a filesystem. The mechanism periodically determines a number of inodes to add to the filesystem based on the inode consumption and adds the number of inodes to the filesystem.

Abstract: The present invention extends to methods, systems, and computer program products for stepping through JavaScript code in a debugger without landing on errors in library or open source code. A debugger receives user inputs designating one or more segments of the JavaScript code as library code. The debugger then performs debugging operations on the JavaScript code. The debugging operations including a stepping operation for stepping through the JavaScript code to identify errors only in user-generated segments of the JavaScript code, wherein the user-generated segments correspond to code that was not designated as library code.

Abstract: A computer-implemented method, according to one embodiment, includes: determining, using a processor, whether a virtual machine is authorized to run using a data structure having metadata about properties of the virtual machine; determining, using the processor, whether a hypervisor is authorized to run the virtual machine using a digital signature of the data structure; and running the virtual machine on a computer system using the hypervisor in response to determining that the virtual machine is authorized to be run and that the hypervisor is authorized to run the virtual machine. Other systems, methods, and computer program products are described in additional embodiments.

Abstract: An apparatus for providing traffic alerts includes a distance module, analysis module, transmission module, and signaling module. The distance module measures the distance between a vehicle and an object in front of the vehicle. The analysis decides whether to signal a presence of the object that comprises determining that the measured distance is equal to or less than a threshold distance. The transmission module transmits an alert in response to the analysis module deciding to signal a presence of the object. The signaling module transmits a visual signal to one or more vehicles behind the vehicle in response to receiving the alert from the transmission module. The visual signal has one or more characteristics.

Abstract: Techniques are described herein that are capable of recommending content of a code snippet to define an object literal. For instance, information regarding one or more properties of the object literal is determined. The content of the code snippet is recommended to define the object literal based at least in part on the information. The content identifies the one or more properties of the object literal. In a first example, the information may be determined from comment(s) that are included in code. In a second example, a proxy object may be provided to a function that is included in code. In accordance with this example, the information regarding the one or more properties of the object literal may be determined using global dynamic analysis based at least in part on a getter trap that is encountered during execution of the function with regard to the proxy object.

Abstract: A dual-mode debugger can debug native code or interpreted code. Transitioning between modes can be triggered by defined bailout conditions. A program can be debugged by attaching a debugger and compiling the program into native code under the debugger. At defined points in the program, debugging can transition from native mode to interpreted mode. Debugging the native code can stop, current state can be captured, and an interpreter can be instantiated. An interpreter stack can be created and can be populated with the captured current state. Debugging operations which involve execution control: pausing execution, continuing execution, stepping into, out of or over a section of code and so on, can occur in interpreted mode, which is typically easier to implement. Debugging operations which involve inspection and modification of variables can occur in native mode.

Abstract: A computer-implemented method, according to one embodiment, includes: determining, using a processor, whether a virtual machine is authorized to run using a data structure having metadata about properties of the virtual machine; determining, using the processor, whether a hypervisor is authorized to run the virtual machine using a digital signature of the data structure; and running the virtual machine on a computer system using the hypervisor in response to determining that the virtual machine is authorized to be run and that the hypervisor is authorized to run the virtual machine. Other systems, methods, and computer program products are described in additional embodiments.

Abstract: Disclosed aspects include management of a set of blocks in a storage system. A set of write requests is initiated to the set of blocks. In response to the set of write requests, a set of expiration metadata for the set of blocks is established. Based on the set of expiration metadata, an expiration event is detected. In response to detecting the expiration event, an expiration operation on the set of blocks is processed.

Abstract: Disclosed aspects include management of a set of blocks in a storage system. A set of write requests is initiated to the set of blocks. In response to the set of write requests, a set of expiration metadata for the set of blocks is established. Based on the set of expiration metadata, an expiration event is detected. In response to detecting the expiration event, an expiration operation on the set of blocks is processed.

Abstract: A computer-implemented method, according to one embodiment, includes receiving a request for a hypervisor to run a virtual machine; determining, using a processor, whether the virtual machine is authorized to run using a data structure having metadata about properties of the virtual machine; determining, using the processor, whether the hypervisor is authorized to run the virtual machine using a digital signature of the data structure; and running the virtual machine on a computer system using the hypervisor in response to determining that the virtual machine is authorized to be run and that the hypervisor is authorized to run the virtual machine. Other systems, methods, and computer program products are described in additional embodiments.

Abstract: A mechanism is provided in a data processing system for managing filesystem inodes. The mechanism monitors inode consumption in a filesystem. The mechanism periodically determines a number of inodes to add to the filesystem based on the inode consumption and adds the number of inodes to the filesystem.

Abstract: Disclosed aspects include management of a set of blocks in a storage system. A set of write requests is initiated to the set of blocks. In response to the set of write requests, a set of expiration metadata for the set of blocks is established. Based on the set of expiration metadata, an expiration event is detected. In response to detecting the expiration event, an expiration operation on the set of blocks is processed.

Abstract: Various method, system, and computer program product embodiments for facilitating upgrades in a computing storage environment are provided. In one such embodiment, one of an available plurality of rolling upgrade policies is defined by specifying the at least one selectable upgrade parameter, including specifying one of a commencement time and duration of an upgrade procedure. A node down tolerance factor is set for at least one node in the computing storage environment. A determination of whether a number of at least one of a plurality of nodes in the computing storage environment currently down, including a target node to be upgraded, does not exceed the node down tolerance factor, and if the node down tolerance factor is not exceeded, a cluster health is checked.

Abstract: A method for defragmenting volumes in a mirrored system. The method includes determining that a defragmentation process has been performed on a second server. The method further includes storing a before and after mapping of a second set of tracks, wherein the before and after mapping includes information identifying at least one track of the second set of tracks and a corresponding first location of the respective track before the performing of the defragmentation process and a second location of the respective track after the performing of the defragmentation process and sending an indication to a first server to relocate at least one track of a first set of tracks on the first server from a first location on the first server to a second location on the first server according to the stored before and after mapping of the corresponding second set of tracks on the second server.

Abstract: Techniques are described herein that are capable of recommending content of a code snippet to define an object literal. For instance, information regarding one or more properties of the object literal is determined. The content of the code snippet is recommended to define the object literal based at least in part on the information. The content identifies the one or more properties of the object literal. In a first example, the information may be determined from comment(s) that are included in code. In a second example, a proxy object may be provided to a function that is included in code. In accordance with this example, the information regarding the one or more properties of the object literal may be determined using global dynamic analysis based at least in part on a getter trap that is encountered during execution of the function with regard to the proxy object.

Abstract: Disclosed aspects include management of a set of blocks in a storage system. A set of write requests is initiated to the set of blocks. In response to the set of write requests, a set of expiration metadata for the set of blocks is established. Based on the set of expiration metadata, an expiration event is detected. In response to detecting the expiration event, an expiration operation on the set of blocks is processed.

Abstract: Disclosed aspects include management of a set of blocks in a storage system. A set of write requests is initiated to the set of blocks. In response to the set of write requests, a set of expiration metadata for the set of blocks is established. Based on the set of expiration metadata, an expiration event is detected. In response to detecting the expiration event, an expiration operation on the set of blocks is processed.

Abstract: A mechanism is provided in a data processing system for managing filesystem inodes. The mechanism monitors inode consumption in a filesystem. The mechanism periodically determines a number of inodes to add to the filesystem based on the inode consumption and adds the number of inodes to the filesystem.

Abstract: Provided are a computer program product, system, and method for selective write control in accordance with the present description. In one aspect, a write operation which is associated with a read operation, may be selectively discarded if write operations have been disabled and if the write operation is directed to update a designated write operation acceptance area such as metadata associated with the target data set, for example. As a result, the read operation may be permitted to proceed and will not fail because the associated write operation was discarded rather than attempting to commit the write operation to the designated write operation acceptance area, thereby avoiding an error condition for a storage unit such as a volume, in which write operations have been disabled. Accordingly, applications which seek to perform read operations may be permitted to access data stored on such a volume. Other aspects are described.