retainer | Minimal async cache in Rust with support for key expirations | Reactive Programming library

 by   whitfin Rust Version: v0.3.0 License: MIT

kandi X-RAY | retainer Summary

kandi X-RAY | retainer Summary

retainer is a Rust library typically used in Programming Style, Reactive Programming applications. retainer has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

This crate offers a very small cache with asynchronous bindings, allowing it to be used in async Rust contexts (Tokio, async-std, smol, etc.) without blocking the worker thread completely. It also includes the ability to expire entries in the cache based on their time inside; this is done by spawning a monitor on your async runtime in order to perform cleanup tasks periodically. The eviction algorithm is similar to the one found inside Redis, although keys are not removed on access in order to reduce borrow complexity. This crate is still a work in progress, so feel free to file any suggestions or improvements and I'll get to them as soon as possible :).
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            kandi-support Support

              retainer has a low active ecosystem.
              It has 36 star(s) with 7 fork(s). There are 4 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 0 open issues and 6 have been closed. On average issues are closed in 149 days. There are 1 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of retainer is v0.3.0

            kandi-Quality Quality

              retainer has no bugs reported.

            kandi-Security Security

              retainer has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              retainer is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              retainer releases are available to install and integrate.
              Installation instructions, examples and code snippets are available.

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            retainer Key Features

            No Key Features are available at this moment for retainer.

            retainer Examples and Code Snippets

            No Code Snippets are available at this moment for retainer.

            Community Discussions

            QUESTION

            What is InternalNode in chrome heap profile
            Asked 2021-Mar-29 at 19:25

            I am diagnosing a memory leak in a jQuery based single page application using the Chrome DevTools heap snapshot tool as described on https://developer.chrome.com/docs/devtools/memory-problems/#discover_detached_dom_tree_memory_leaks_with_heap_snapshots

            I have solved some issues this way, but I have now hit a roadblock where I can no longer determine what is keeping an object in memory. For example, for one of the objects it returns the following retainers:

            From what I can tell, the object is retained because it's used inside a closure scope of a click event. But the click event is on a detached HtmlDivElement, which should be garbage collected. It is somehow linked to the window object via InternalNode objects. I have searched all over the internet, but I'm unable to find what these InternalNode objects are.

            My question is, what are these InternalNode objects and how I can "free" them so my objects are garbage collected.

            ...

            ANSWER

            Answered 2021-Mar-29 at 19:25

            TL;DR
            Leak is caused by https://crbug.com/1177010
            Clicking on an element outside the detached element prevents the memory leak from occuring.

            Following @wOxxOm's comment, I have compiled a version of Chromium with the enable_additional_blink_object_names flag enabled so that it shows the names of the InternalNode objects. It appears blink:MouseEventManager is preventing the detached dom element from being garbage collected.

            This finally lead me to https://crbug.com/1177010, which I could confirm by clicking outside the detached element before taking another heap snapshot.

            Source https://stackoverflow.com/questions/66802111

            QUESTION

            Nuxt Content Filtering on an object
            Asked 2021-Feb-25 at 17:03

            having a bit of an issue wrapping my head around how to do Nuxt Content where() on objects. What I mean by that is consider the following url:

            ...

            ANSWER

            Answered 2021-Feb-25 at 17:03

            QUESTION

            How to split a string into regular intervals in R?
            Asked 2020-Sep-23 at 07:50

            I have a long string that I want to split into regular intervals of, say, 10 words each:

            ...

            ANSWER

            Answered 2020-Sep-23 at 07:10

            You could create a sequence and paste the words from x1 :

            Source https://stackoverflow.com/questions/64022743

            QUESTION

            How to extract a required text from a line of text using Python?
            Asked 2020-Aug-25 at 23:42

            Available formats

            Since I am a newbie to the Python world can anyone help me with the below scenario :

            I have texts/descriptions from which I need to extract the word "PO" and the digits following it using Python.

            I tried to extracting digits, but without success.

            The formats are as below :

            Additional Funnel Ireland (50% Deposit) - PO 12345
            Monthly Retainer (PO00011223)
            PO0000054321: 3 months: August, September, October
            Monthly Retainer PYB (PO 11236)
            Additional Funnel Czech Republic (50%) - PO is 78901

            ...

            ANSWER

            Answered 2020-Aug-25 at 10:14

            If the format is always the same, you can split the whole string by the spaces and grab the last en 2 but last position:

            Source https://stackoverflow.com/questions/63576586

            QUESTION

            how to load json and extract into separate nodes in neo4j
            Asked 2020-Jul-16 at 14:23

            i'm newbie in neo4j and need help with my case... i'm trying to load json file with the structure (updated by suggested) like below and extract into 3 nodes (big5_personality, personality_result & personality)

            ...

            ANSWER

            Answered 2020-Jul-15 at 03:29

            You have multiple issues with your data file. Among them are:

            1. Your Cypher code expects personality_result to be a list of JSON objects. It is not.

              (a) It is a single string, not a list.

              (b) That string seems to consist of the truncated start of a stringified JSON object (that includes a lot of extra pretty-printing whitespace).

              So, everything in your Cypher query starting at the FOREACH will not work.

            2. In your next-to-last MERGE, personality_result.personality should probably be just personality.

            You may have other issues, but it is hard to tell until you fix your data file and code.

            Source https://stackoverflow.com/questions/62906025

            QUESTION

            eventContext leaking with LitElement
            Asked 2020-Jun-25 at 17:29

            I'm using lit-element (v2.3.1) & lit-html (v1.2.1) and having a memory leak where as a result of rendering, detached DOM nodes are not cleaned by GC and the only retainers shown for them by Chrome DevTools are WeakMaps used internally by lit-html to keep track of parts:

            This doesn't happen with all renders, but I have not found a difference between the templates/renders that do and do not leak. Seems almost random. But maybe I'm missing something obvious here, would be glad to hear any suggestions regarding this.

            ...

            ANSWER

            Answered 2020-Jun-25 at 17:29

            As it happens, there is a known issue with one of the web components I'm using (mwc-ripple) where it attaches event listeners to window and fails to remove them, thus, the browser keeps in memory the whole tree containing the element leading to the memory leak described.

            Source https://stackoverflow.com/questions/62533285

            QUESTION

            How to get
          • tag information (BeautifulSoup Webscraping)?
          • Asked 2020-Mar-06 at 02:37

            I am scraping the information from this page:
            https://lawyers.justia.com/lawyer/michael-paul-ehline-85006 . I am trying to scrape all the information in under the fees section. What I want is the following information: Free Consultation Yes Credit Cards Accepted Visa, Mastercard, American Express Contingent Fees In personal injury cases only. Rates, Retainers and Additional Information Rates vary on a case by case basis.

            This is what I have tried:

            ...

            ANSWER

            Answered 2020-Mar-05 at 21:11

            Try this soup. It was inspired by dabinsous answer. All it does is look for the icon that he detailed, then go to its parent's next sibling, and from there grab that siblings text.

            Source https://stackoverflow.com/questions/60538464

            QUESTION

            Vue memory leak when rendered components are removed
            Asked 2020-Jan-06 at 12:19

            Within a Vue application I am encountering a memory leak, the scenario in which it occurs is as follows:

            • We have a component which is rendered within a v-for which contains many child components
            • When the corresponding element is removed from the array the v-for rerenders these components and correctly removes the component that corresponds to the element removed from the array.

            However the allocated memory is never freed, the application starts out with ~30-40 MB of RAM usage, which increases to 200MB RAM when the v-for is rendered (and eventually goes up to more than 1GB and crashes the browser when more elements are added or when switching). When the element is removed it stays steadily at 200MB (even when manually garbage collecting), so it seems like something it retaining my component.

            I have tried locating the issue with heap snapshots but it only shows a child component as retainer. I cannot locate what is causing this component to not be garbage collected. I have tried unsubscribing all event listeners on the root with this.$root.off however this does not seem to help at all...

            The code itself is condifential so I cannot just share it, however if a bit of code is necessary to understand the issue please let me know, so i can provide a replicated example.

            Does anyone have any ideas how I can solve this issue or has any ideas how to locate the cause of this memory leak?

            UPDATE

            This is the component which renders the components in the v-for:

            ...

            ANSWER

            Answered 2020-Jan-05 at 00:35

            You are ordering vue to keep your components alive and asking why they are alive?!!!

            Solution: Just adding max prop to sudo-component and passing tabs.length value will force it to discard removed ones.

            Source https://stackoverflow.com/questions/59454894

            QUESTION

            In SQLalchemy, can I have a column with multiple strings?
            Asked 2019-Sep-25 at 16:13

            For the following code, I have the mapping and an example of a "cookie" that contains some info I want to add to the SQLalchemy through python. As you can see some fields like Farmloc, TreasureMap, and Crafts all have multiple entries they point to. I searched and couldn't find much other than Enum, but that was giving me some trouble. Is there a better means than what I've done here. Using Python3.6.1 and SQLalchemy 1.1.11

            ...

            ANSWER

            Answered 2019-Sep-25 at 16:13

            Check out the built-in class sqlalchemy.types.ARRAY

            For example:

            TreasureMap = Column(ARRAY(String))

            Side note: as per convention all column names are all lowercase and under score separated (e.g. treasure_map over TreasureMap.)

            Source https://stackoverflow.com/questions/45604488

            QUESTION

            Tensorflow Retrain on Windows
            Asked 2019-Aug-25 at 22:36

            When I follow the tutorials of "How to Retrain Inception's Final Layer for New Categories", I need to build the retainer like this

            ...

            ANSWER

            Answered 2017-Jan-05 at 01:02

            From the screenshot, it appears that you have installed the TensorFlow PIP package, whereas the instructions in the image retraining tutorial assume that you have cloned the Git repository (and can use bazel to build TensorFlow).

            However, fortunately the script (retrain.py) for image retraining is a simple Python script, which you can download and run without building anything. Simply download the copy of retrain.py from the branch of the TensorFlow repository that matches your installed package (e.g. if you've installed TensorFlow 0.12, you can download this version), and you should be able to run it by typing python retrain.py at the Command Prompt.

            Source https://stackoverflow.com/questions/41433282

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

            Vulnerabilities

            No vulnerabilities reported

            Install retainer

            This crate is available on crates.io. The easiest way to use it is to add an entry to your Cargo.toml defining the dependency:.

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            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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            gh repo clone whitfin/retainer

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