osv | OSv , a new operating system for the cloud | Continuous Deployment library

 by   cloudius-systems C Version: v0.57.0 License: Non-SPDX

kandi X-RAY | osv Summary

kandi X-RAY | osv Summary

osv is a C library typically used in Devops, Continuous Deployment, Docker applications. osv has no bugs, it has no vulnerabilities and it has medium support. However osv has a Non-SPDX License. You can download it from GitHub.

List of somewhat newer articles about OSv found on the Web:. You can find some older articles and presentations at and
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              osv has a medium active ecosystem.
              It has 3878 star(s) with 599 fork(s). There are 280 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 317 open issues and 821 have been closed. On average issues are closed in 383 days. There are 4 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of osv is v0.57.0

            kandi-Quality Quality

              osv has 0 bugs and 0 code smells.

            kandi-Security Security

              osv has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              osv code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              osv has a Non-SPDX License.
              Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

            kandi-Reuse Reuse

              osv releases are available to install and integrate.
              Installation instructions, examples and code snippets are available.
              It has 13658 lines of code, 1158 functions and 212 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

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            osv Key Features

            No Key Features are available at this moment for osv.

            osv Examples and Code Snippets

            No Code Snippets are available at this moment for osv.

            Community Discussions

            QUESTION

            How to compare counted elements?
            Asked 2022-Feb-23 at 10:38

            I don't know how to compare counted elements inside of ist and osv columns.

            ...

            ANSWER

            Answered 2022-Feb-23 at 09:59

            QUESTION

            CSS transitions jumping with min-width media queries
            Asked 2021-Aug-13 at 14:40

            I have a sidebar nav which collapses to make way for more content in a flex layout. When the user clicks to collapse the nav the content area div .ca expands to fill the space and the flex layout reflows using media queries.

            See it in action here.

            I have applied a CSS transition to each moving element but the .ca div jumps when the nav is opened and closed. This seems to be related to the widths of the units in the flex layout – .songgrid-unit.

            The unit has a width value in px but the media queries set a min-width value in % to override this, so as to avoid large empty spaces between break points:

            html:

            ...

            ANSWER

            Answered 2021-Aug-12 at 22:42

            It's hard to tell because the code on the site you linked is a bit different from what you posted here. But it seems to me like the .ca div isn't actually jumping, it just looks like it is because as the items inside the grid change in size the number of items per row changes. The jump happens when the items either take up more space so that one fewer can fit in a row, or take up less space so one more can fit per row.

            I played with the code you posted here a bit just to demonstrate what I think is happening. I hid the nav and added some outlines around the songgrid-container & individual songgrid items, and then I slowed down the transition a bit. So you can press the blue box and see what the transition looks like in slow motion. It looks like the widths are all transitioning fine, it just jumps when the layout inevitably changes.

            Unfortunately I don't have a super easy solution to this, it's not really something you can control with a basic CSS transition. But maybe look at a library like this: https://isotope.metafizzy.co/

            I don't actually think the media queries have anything to do with it, but I may also just be completely misunderstanding the effect you are seeing!

            Source https://stackoverflow.com/questions/68761981

            QUESTION

            Assigning and using variables based on If condition in Reactive function of R Shiny
            Asked 2021-Jun-24 at 03:30

            I have written some lines of code in R Shiny and would like to use variables a (surface area) and v (volume) which are numeric vectors containing 9 values. These variables are calculated using a constant size vector d. An if condition determines which formula to execute based on user selection of particle shape from a dropdown menu. The variables a and v are used in the subsequent steps to create a dataframe, a plot, and a graph.

            I am facing 2 problems with my code currently.

            1. The variables a and v are not being calculated which is resulting in an error in the later steps because I am not able to create dataframes which use a and v.

            2. The dataframes I have coded within the reactive() function, which are intended to be variable as the values will change based on user selection, are not being created and I cannot figure out why.

            Below is the code. I am fairly new to R so any help would be highly appreciated.

            ...

            ANSWER

            Answered 2021-Jun-23 at 21:00

            There are a few things to consider:

            1. a and v are reactive values and they must be called like a function, for example a().
            2. v is called inside the reactive defining v, and because there's no object declared in any environment with that name that would result in an error or in case that it exists it won't have the desired value.
            3. The vector of choices defined in the second selectInput does not match the ones inside the if statements. (be ware of case sensitiveness)

            Code:

            Source https://stackoverflow.com/questions/68104565

            QUESTION

            Odoo How to have a default value for a specific field via the widget many2many_binary
            Asked 2020-Aug-20 at 17:59

            I've a many2many field between res_partner and ir_attachement defined that way :

            ...

            ANSWER

            Answered 2020-Aug-20 at 17:59

            I think the easiest solution is to create three fields in your class and make sure you define domain

            Source https://stackoverflow.com/questions/63491978

            QUESTION

            Compile Micro Focus Net Express 5.1 Cobol in Powershell
            Asked 2020-Apr-15 at 16:18

            I am hoping someone might be able to help me with writing a COBOL MF Net Express 5.1 compile command in Powershell. I have the command as it was used in the original batch script. I am currently working on reworking this in Powershell as a build script.

            ...

            ANSWER

            Answered 2020-Apr-15 at 16:18

            Calling external exe's/cmd's via PowerShell requires specific attention. It is a well-documented thing.

            See these details from Microsoft and others: ---

            PowerShell: Running Executables

            1. The Call Operator &

            Source https://stackoverflow.com/questions/61071868

            QUESTION

            Creating system to give point to 3 employees, every time I click on one of the button I gives 1 point to the selected user-
            Asked 2020-Mar-30 at 06:56

            ...

            ANSWER

            Answered 2020-Mar-22 at 02:51

            I think you might want to refactor your code a bit and wrap your querySelector's in an onload event listener because (at least for me) the variables are all undefined. You should wait until the content (class names etc.) are already rendered onto the DOM.

            Then you need to wrap your point check in a function that gets called at the end of your point assignment. Otherwise the check will only be called when the JS file initially loads. I put the point evaluation in the evalPoints function and added it at the end of the point assignment function so that so the check gets run every time you add a point.

            You also don't appear to have resetScore declared anywhere so I added that as well.

            Source https://stackoverflow.com/questions/60790940

            QUESTION

            How does KVM/QEMU and guest OS handles page fault
            Asked 2020-Mar-15 at 20:20

            For example, I have a host OS (say, Ubuntu) with KVM enabled. I start a virtual machine with QEMU to run a guest OS (say, CentOS). It is said that to the host OS, this VM is just a process. So in the host's point of view, it handles page fault as usual (e.g., allocate page frame as needed, swap pages based on active/inactive lists if necessary).

            Here is the question and my understanding. Within the guest OS, as it's still a full-fledged OS, I assume it still has all mechanisms handling virtual memory. It sees some virtualized physical memory provided by QEMU. By virtualized physical memory I mean the guest OS doesn't know it is in a VM, and still works as it would on a real physical machine, but what it has are indeed an abstraction given by QEMU. So even if a page frame is allocated to it, if that's not in guest's page table, the guest OS will still trigger a page fault and then map some page to the frame. What's worse, there may be a double page fault, where the guest first allocate some page frames upon page fault, which triggers page fault at host OS.

            However, I also heard something like shallow (or shadow) page table which seems could optimize this unnecessary double page fault and double page table issue. I also looked at some other kernel implementation, specifically unikernels, e.g., OSv, IncludeOS, etc. I didn't find anything related to page fault and page table mechanisms. I did see some symbols like page_fault_handler but not as huge as what I saw in Linux kernel code. It seems memory management is not a big deal in these unikernel implementations. So I assume QEMU/KVM and some Intel's virtualization technologies have already handled that.

            Any ideas in this topic? Or if you have some good references/papers/resources to this problem, or some hints would be very helpful.

            ...

            ANSWER

            Answered 2020-Mar-15 at 20:20

            There are two ways for QEMU/KVM to support guest physical memory: EPT and shadow page tables. (EPT is an Intel-defined mechanism. Other processors support something similar, which I won't talk about here.)

            EPT stands for Extended Page Tables. It is a second level of paging supported by the CPU in addition to the regular processor page tables. While running in a VM, the regular page tables are used to translate Guest Virtual Addresses into Guest Physical Addresses, while the EPT tables are used to translate Guest Physical Addresses into Host Physical Addresses. This double-level translation is performed for every memory access within the guest. (The processor TLBs hide most of the cost.) EPT tables are managed by the VMM while the regular page tables are managed by the guest. If a page is not present in the guest page tables, it causes a page fault within the guest, exactly as you have described. If a page is present in the guest page tables but not present in the EPT, it causes an EPT violation VM exit, so the VMM can handle the missing page.

            Shadow page tables are used when EPT is not available. Shadow page tables are a copy of the guest page tables which incorporate both the GVA to GPA and GPA to HPA mappings within a single set of page tables. When a page fault occurs, it always causes a VM exit. The VMM checks whether the missing page is mapped in the guest page tables. If it is not, then the VMM injects the page fault into the guest for it to handle. If the page is mapped in the guest page tables, then the VMM handles the fault as it would for an EPT violation. Efficient management of shadow page tables across multiple processes within the guest can be very complex.

            EPT is both simpler to implement and has far better performance for most workloads, because page faults are generated directly to the guest OS, which is generally where they need to be handled. The use of shadow page tables requires a VM exit for every page fault. However, shadow page tables may have better performance for a few specific workloads that cause very few page faults.

            Source https://stackoverflow.com/questions/60694243

            QUESTION

            How to prevent firing Dynamics CRM Plugin execution while updating an entity using web service?
            Asked 2020-Mar-09 at 20:28

            I have implemented a plugin for my Dynamics CRM which is firing on Update message for incident entity. Also I have a web service for external users which can update just two attributes of incident entity from outside.

            The problem is while external users use the web service to update entity, the plugin will fire also. I want to bind the plugin going to be fired just inside CRM when incident entity changed and prevent it firing by outside requests.

            I checked below conditions in my plugin for preventing infinite loop and it works but not works for preventing firing by outside update requests.

            ...

            ANSWER

            Answered 2020-Mar-04 at 02:54

            The plugin executes in every server transaction & it gets triggered which is the expected behavior (that's the whole purpose).

            You may use some other flag (additional attribute or any service account) which only get updated/used by outside integration, in that case you can check in execution context/target entity and ignore the further execution.

            For external integration - you should create an Application user (non-interactive service account). Read more

            Source https://stackoverflow.com/questions/60509794

            QUESTION

            explanation of odoo filter domain operator "child_of" and its preference over "in" operator
            Asked 2020-Jan-05 at 13:26

            I am uncertain regarding what child_of does after reading the docs and the use of child_of operator over using in operator for filtering

            Odoo v10 domain docs can be found here which states the following for child_of

            ...

            ANSWER

            Answered 2020-Jan-02 at 12:29

            Basically child_of functionality is provided by odoo, not python.

            But to understand it you must need to knowledge of parent, 'child` relationship in database concept.

            If any of your tables are using a self join like below example.

            _name = 'my.table'

            parent_id = fields.Many2one('my.table', string='Parent Id')

            In the above case, your model has connected itself. In this type of cases in Odoo, you can use child_of operator in the domain.

            So, it will search in database like parent_id = .

            For in domain,

            You can pass the list of data which you need to search in id field. It similar to any database in operator.

            Source https://stackoverflow.com/questions/59562532

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install osv

            OSv can only be built on a 64-bit x86 Linux distribution. Please note that this means the "x86_64" or "amd64" version, not the 32-bit "i386" version. In order to build OSv kernel you need a physical or virtual machine with Linux distribution on it and GCC toolchain and all necessary packages and libraries OSv build process depends on. The fastest way to set it up is to use the Docker files that OSv comes with. You can use them to build your own Docker image and then start it in order to build OSv kernel or run an app on OSv inside of it. Please note that the main docker file depends on pre-built base Docker images for Ubuntu or Fedora that get published to DockerHub upon every commit. This should speed up building the final images as all necessary packages should already be part of the base images.

            Support

            If you want to learn more about OSv or ask questions, please contact us on OSv Google Group forum. You can also follow us on Twitter.
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