finagle | A fault tolerant , protocol-agnostic RPC system

by twitter Scala Version: finagle-22.12.0 License: Apache-2.0

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | finagle Summary

finagle is a Scala library typically used in Web Services applications. finagle has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

A fault tolerant, protocol-agnostic RPC system

Support

Quality

Security

License

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Support

finagle has a medium active ecosystem.

It has 8649 star(s) with 1467 fork(s). There are 564 watchers for this library.

It had no major release in the last 12 months.

There are 54 open issues and 349 have been closed. On average issues are closed in 115 days. There are 4 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of finagle is finagle-22.12.0

Quality

finagle has 0 bugs and 0 code smells.

Security

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

finagle code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

finagle is licensed under the Apache-2.0 License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

finagle releases are available to install and integrate.

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finagle Key Features

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finagle Examples and Code Snippets

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Community Discussions

Trending Discussions on finagle

C++ std::random and enum class

How can arrows be added to faceted plots at different positions on each plot but at a constant angle?

Is there a way to "listen" for a program's outbound system messages?

Finagle KetamaShardingServiceBuilder is unknown

Pivot/Denormalize Over Effective Ranges

Scala: missing implicit generic parameter shapeless.LabelledGeneric.Aux[T,L], how to provide it?

Have only 1 record per date in a pandas dataframe

Minikube's CoreDNS fails to resolve names from JVM

Windbg syntax - combining two commands (MASM and C++) into one

How to create an 'andThen' as an infix operator for composability on a generic class in Kotlin?

QUESTION

C++ std::random and enum class

Asked 2021-Sep-30 at 15:03

I've got a fussy question regarding more modern C++ "preferred" styles.

Say I want to use the contents of std::random in order to select a value from an enum class. How can I finagle that? We're talking some pretty basic stuff here, where the first selection works just fine, but Visual Studio scolds me (rightly) for using bare enums:

...

ANSWER

Answered 2021-Sep-30 at 15:03

Both enum and enum class are rather problematic: they don't know their size, they can't be iterated etc. As a replacement, you can use std::variant with dummy types:

Source https://stackoverflow.com/questions/69379497

QUESTION

How can arrows be added to faceted plots at different positions on each plot but at a constant angle?

Asked 2021-Sep-21 at 21:07

This is a tricky one, and I'm making it trickier by basically asking two questions concurrently. But they're related (in practice, if not in theory).

The issue

Basically I want to use one script and one data frame to create a faceted plot with arrows:

at unique locations on each plot and
at consistent angles regardless of the scale.

The goal is to use the arrows to indicate dosing of a therapeutic, which might change for individuals or treatment cohorts.

Example dataset

Here's an example of the sort of data which I might need to plot with arrows:

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ANSWER

Answered 2021-Sep-21 at 20:41

Not sure whether I fully understand what you are trying to achieve but one option to add your arrows would be to make use of annotation_custom instead of annotate.

Source https://stackoverflow.com/questions/69274909

QUESTION

Is there a way to "listen" for a program's outbound system messages?

Asked 2021-Jun-28 at 16:59

I'm trying to replicate the behaviour of an automation tool that sends a few system messages to a program with the specified window handle but I'm not sure which messages it's using. Is there a way to listen to a program's outbound system messages? This is for Windows.

My replica is in C# but I'm familiar with C++ as well, and can use 3rd party tools if available (or if there is a niche Win32 API function that does something like this I can finagle a side project together).

Thank you!

...

ANSWER

Answered 2021-Jun-28 at 16:59

I'm trying to replicate the behaviour of an automation tool that sends a few system messages to a program with the specified window handle but I'm not sure which messages it's using. Is there a way to listen to a program's outbound system messages?

If the automation tool is using window messages, you can use monitoring tools like Spy++, Winsight, etc to view them in real time.

Or, you can simply hook the messages of the target window yourself in your own code using the WH_GETMESSAGE/WH_CALLWNDPROC(RET) hooks of SetWindowsHookEx(). You can use GetWindowThreadProcessId() to get the owning thread ID of the window, so that you are hooking only that thread and not other threads in the system.

Source https://stackoverflow.com/questions/68157800

QUESTION

Finagle KetamaShardingServiceBuilder is unknown

Asked 2021-Mar-23 at 22:11

We're using finagle as a rest api and as we need to have some exotic loadbalancing we used Finagle's KetamaShardingServiceBuilder available in 19.3

I tried updating finagle version to 20.10 but the KetamaShardingServiceBuilder seems gone. No indications in the changelog, and hardly any reference on the world wide web. It appears ShardingService (with KetamaShardingServiceBuilder) has completely been removed from com.twitter.finagle.core.service after version 20.3, without documentation or deprecation.

Hopefully any more insights here?

...

ANSWER

Answered 2021-Mar-23 at 22:11

jerry, it looks the question got answered in gitter, I will try to also close the loop here.

The ShardingService along with KetmaShardingServiceBuilder was removed in 20.3.0, changelog here, with the reason we believe it is a duplication of PartioningService, apologize not making it deprecated first to raise a warning.

Depends on which protocol you are using, more sophisticated partitioning APIs are provided as alternatives, more docs

http://twitter.github.io/finagle/guide/Clients.html#partition-aware-client http://twitter.github.io/finagle/guide/PartitionAwareClient.html

I believe the HashingPartitioningStrategy would provide an equivalent algorithm (if use the Ketama as the hasher) with KetamaShardingServiceBuilder as you are seeking.

Source https://stackoverflow.com/questions/66746668

QUESTION

Pivot/Denormalize Over Effective Ranges

Asked 2021-Mar-06 at 04:26

I'm looking to pivot a transactional data set into SCD2 in such a way that captures the intervals in which each combination at the pivot grain were effective.

Snowflake is the actual DBMS I'm using, but tagging Oracle too because their dialects are nearly identical. I could probably finagle a solution provided for any DBMS though.

I have working sql, but this it's born out of trial&error and I feel like there has to be a more elegant way that I'm missing because it's very ugly and computationally expensive.

(Note: The second record in the input data "expires" the first. It can be assumed that every day of interest will occur as an add_dts at least once.) (added as image at the end until I can figure out why the markup isn't working)

Input:

Original_Grain Pivot_Grain Pivot_Column Pivot_Attribute ADD_TS OG-1 PG-1 First_Col A 2020-01-01 OG-1 PG-1 First_Col B 2020-01-02 OG-2 PG-1 Second_Col A 2020-01-01 OG-3 PG-1 Third_Col C 2020-01-02 OG-3 PG-1 Third_Col B 2020-01-03

Output:

Pivot_Grain First_Col Second_Col Third_Col From_Dt To_Dt PG-1 A A NULL 2020-01-01 2020-01-02 PG-1 B A C 2020-01-02 2020-01-03 PG-1 B A B 2020-01-03 9999-01-01 ...

ANSWER

Answered 2021-Mar-05 at 19:54

Not sure if this answers your question, but see https://jeffreyjacobs.wordpress.com/2021/03/03/pivoting-iiot-data-in-snowflake/

Source https://stackoverflow.com/questions/66498440

QUESTION

Scala: missing implicit generic parameter shapeless.LabelledGeneric.Aux[T,L], how to provide it?

Asked 2020-Dec-08 at 23:22

I'm writing code for working with DB with finagle-postgres, I have mappers and sure I want to move common parts of code, as much as I can, to generic Mapper.

So, for example, I have Mapper

...

ANSWER

Answered 2020-Dec-08 at 23:22

Updates#apply requires more than just a LabelledGeneric.Aux[P, L]. The complete signature is:

Source https://stackoverflow.com/questions/65203808

QUESTION

Have only 1 record per date in a pandas dataframe

Asked 2020-Sep-24 at 15:42

Background: In mplfinance, I want to be able to plot multiple trade markers in the same bar. Currently to my understanding you can add only 1 (or 1 buy and 1 sell) to the same bar. I cannot have 2 more trades on the same side in the same bar unless I create another series.

Here is an example:

...

ANSWER

Answered 2020-Sep-23 at 21:32

The trick is to add an incremental counter to each unique datetime. Such that if a datetime is encountered more than once, this counter increases.

To do this, we groupby tradedate, and get a cumulative count of the number of duplicate tradedates there are for a given tradedate. I then add 1 to this value so our counting starts at 1 instea of 0.

Source https://stackoverflow.com/questions/64036014

QUESTION

Minikube's CoreDNS fails to resolve names from JVM

Asked 2020-Aug-18 at 10:26

Our JVM services (based on Java SE 8/Scala/Finagle) have problems resolving DNS names. I have checked coredns deployment logs in kube-system namespace and found out that java.net.InetAddress.getAllByName() is querying for ANY record type.

If I check name resolution via nslookup I can confirm that ANY record type is not resolvable, but A or AAAA records are:

...

ANSWER

Answered 2020-Aug-18 at 10:12

I found two possible solutions:

1. Use CoreDNS rewrite plugin

Rewrite query types from ANY to A. Here is a link to the documentation: https://coredns.io/plugins/rewrite/

2. Use default NS provider inside JVM

This applies only if you run on Jave SE 8 or older. Java SE 9 removed this system property, read more here: https://www.oracle.com/java/technologies/javase/9-removed-features.html#JDK-8134577

Java SE 8 ships with two NS providers default and dns,sun. default provider uses system's NS provider while dns,sun uses some old NS implementation.

To use default NS provider simply set the following property:

Source https://stackoverflow.com/questions/63413023

QUESTION

Windbg syntax - combining two commands (MASM and C++) into one

Asked 2020-May-16 at 05:09

My apologies if I should know this, but I know that someone else will know straight away if it's possible (and I'd assume it is) and then I can know for the future. But is it possible to combine these two commands into one?

...

ANSWER

Answered 2020-May-16 at 05:09

i don't know why use convouluted strategies
I hope you understand the implementation of std::string and sso (short string optimization)
I hope you understand any string that crosses a threshold cannot be printed with _Buf
but need to be printed via its _Ptr

why not use just c++ or use the convenience functions

try some of the below expressions and see if it satisfies the needs

Source https://stackoverflow.com/questions/61816306

QUESTION

How to create an 'andThen' as an infix operator for composability on a generic class in Kotlin?

Asked 2020-May-13 at 17:08

Problem Statement: I'm trying to recreate Scala/Finagle's andThen method chaining/composition across two types: Filters and Services.

The goal is to be able to do something like this:

...

ANSWER

Answered 2020-May-13 at 17:08

The signatures you need are

Source https://stackoverflow.com/questions/61780458

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