retainer | Minimal async cache in Rust with support for key expirations | Reactive Programming library
kandi X-RAY | retainer Summary
kandi X-RAY | retainer Summary
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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QUESTION
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 19:25TL;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.
QUESTION
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 17:03Found my answer: https://github.com/nuxtlabs/demo-blog-nuxt-content/blob/master/pages/blog/tag/_tag.vue
This file is a great example of how to do tag searching.
QUESTION
I have a long string that I want to split into regular intervals of, say, 10 words each:
...ANSWER
Answered 2020-Sep-23 at 07:10You could create a sequence and paste the words from x1
:
QUESTION
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 10:14If the format is always the same, you can split the whole string by the spaces and grab the last en 2 but last position:
QUESTION
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 03:29You have multiple issues with your data file. Among them are:
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.In your next-to-last
MERGE
,personality_result.personality
should probably be justpersonality
.
You may have other issues, but it is hard to tell until you fix your data file and code.
QUESTION
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 17:29As 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.
QUESTION
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 21:11Try 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.
QUESTION
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 00:35You 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.
QUESTION
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 16:13Check 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
.)
QUESTION
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 01:02From 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.
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