nsq | A realtime distributed messaging platform | Architecture library

 by   nsqio Go Version: v1.2.1 License: MIT

kandi X-RAY | nsq Summary

kandi X-RAY | nsq Summary

nsq is a Go library typically used in Architecture applications. nsq has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

NSQ is a realtime distributed messaging platform designed to operate at scale, handling billions of messages per day. It promotes distributed and decentralized topologies without single points of failure, enabling fault tolerance and high availability coupled with a reliable message delivery guarantee. See features & guarantees. Operationally, NSQ is easy to configure and deploy (all parameters are specified on the command line and compiled binaries have no runtime dependencies). For maximum flexibility, it is agnostic to data format (messages can be JSON, MsgPack, Protocol Buffers, or anything else). Official Go and Python libraries are available out of the box (as well as many other client libraries) and, if you're interested in building your own, there's a protocol spec. We publish binary releases for linux, darwin, freebsd and windows as well as an official Docker image. NOTE: master is our development branch and may not be stable at all times.
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              nsq has a medium active ecosystem.
              It has 23550 star(s) with 2863 fork(s). There are 842 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 51 open issues and 578 have been closed. On average issues are closed in 43 days. There are 11 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of nsq is v1.2.1

            kandi-Quality Quality

              nsq has no bugs reported.

            kandi-Security Security

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

            kandi-License License

              nsq 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

              nsq releases are available to install and integrate.

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            nsq Key Features

            No Key Features are available at this moment for nsq.

            nsq Examples and Code Snippets

            No Code Snippets are available at this moment for nsq.

            Community Discussions

            QUESTION

            Fortran90 - compiled program creates a blank csv file instead of reading the existing one
            Asked 2021-Jan-15 at 12:21

            In short: I am trying to load a csv file but the program always overwrites the existing file as an empty new file.

            Longer: I am pretty new to Fortran, so bear with me. I am trying to read data from a csv file into a fortran program. Now I didn't write the program and it is pretty big, so I can't post the whole thing here. The program consists of a whole bunch of .f90 files and everything is compiled using a makefile. Now since I am loading the gcc module before compiling, I am assuming that it is compiled using GNU Fortran, because it is part of gcc. (idk how to find out if that is correct)

            The compiler returns an executable in a different directory. When I execute the program in that directory it apparently overwrites the existing .csv file with a new blank one, so the program only reads "End of File". I don't know why it always creates a new file, how do I stop it from doing so?

            As a side note, the csv file I am trying to read simply consists of a single column of floats, e.g. "0.01, 0.13, 0.041,..." etc. The code that I inserted into a subroutine of one of the .f90 files is the following:

            ...

            ANSWER

            Answered 2021-Jan-15 at 12:21

            The open-statement in Fortran OPEN(connect-spec-list), has a lot of connection specifications which define how an external file should be managed (see. Fortran 2018 Standard sec 12.5.6).

            When you open a file using the simplest form of the open-statement:

            Source https://stackoverflow.com/questions/65729297

            QUESTION

            Inject dynamically commands into a deployment
            Asked 2020-Jun-21 at 21:45

            When you have a StatefulSet or a Deployment you usually have means to provide commands that will be fed into a pod's container on its creation.

            Is it possible, more arguments to be injected into the commands array as the deployment autoscales with say an HPA or remove certain if it downscales?

            For example, here if you want to allow nsqlookupd to scale out (another deployment), then you'd have to register its new pod IPs into the command list of a nsqAdmin pod.

            ...

            ANSWER

            Answered 2020-Jun-21 at 21:45

            This question is more rather more about an option on how to scale certain services in Kubernetes. I think the best pattern for this is to have a Kubernetes Operator. Essentially, this would manage the lifecycle of your nsqd application. There are several operator tools that you can use to create your nsqd operator:

            A good example of a scale-out operator is Srimzi which is Kafka operator for Kubernetes.

            You can also find other well-known operators in the Operator Hub.

            Source https://stackoverflow.com/questions/62492308

            QUESTION

            PHP Using code as a function, variables not working
            Asked 2020-May-29 at 12:15

            I've got this code which works well standalone:

            ...

            ANSWER

            Answered 2020-May-29 at 12:04

            You can use use to pass variables to a function callback like this:

            Source https://stackoverflow.com/questions/62085531

            QUESTION

            R : Returning a value from loop when manually stopping it
            Asked 2020-Feb-19 at 21:54

            I am trying to build a database with rvest. Since I have much data to download, I tried to write several functions that would allow me to interrupt the scraping process and to restart it where I left it. However, while the functions work more or less, whenever I manually interrupt them, I loose the output. Does anyone know a solution that would allow me to stop the function without loosing the dataframe that the loop is building ? I would be glad for any advice!

            Some urls that I am trying to scrape data from:

            ...

            ANSWER

            Answered 2020-Feb-19 at 21:54

            I come across this problem often in webscraping. The key is to store the intermediate results in an environment where they are accessible if your function throws an error. The obvious place is the global environment, but this depends on how you are using your function. If it is part of a package, then you don't want to write to the global workspace. In that case you can have a "storage" environment as part of the package.

            Perhaps the neatest way to do this is to delete the intermediate object after the loop is complete, so it will only ever be visible / accessible if the loop throws an error.

            Here is a function that demonstrates the principle:

            Source https://stackoverflow.com/questions/60308526

            QUESTION

            Null pointer exception with GenericWriteAheadSink and FileCheckpointCommitter in Flink 1.8
            Asked 2020-Feb-12 at 15:53

            I'm implementing a custom NSQ sink for Flink. I have it working as a subclass of RichSinkFunction, but I'd like to get the write-ahead log implementation working for extra data integrity.

            Using O'Reilly's WriteAheadSinkExample available here, I attempted to implement my own:

            ...

            ANSWER

            Answered 2020-Feb-11 at 13:34

            The issue here is most certainly the fact that You never call the open() method of the superclass. This will cause some of the variables to be uninitialized. This should be solved by calling the super.open() inside Your open() method.

            Source https://stackoverflow.com/questions/60160242

            QUESTION

            Empty array returned when calling AlphaVantage APIs for NASDAQ tickers
            Asked 2020-Feb-10 at 04:40

            I cannot get any NASDAQ data from the Alpha Vantage TIME_SERIES_DAILY, TIME_SERIES_DAILY_ADJUSTED or TIME_SERIES_INTRADAY -- the returned array is always empty regardless of the equity or index symbol I use:

            ...

            ANSWER

            Answered 2020-Feb-10 at 04:40

            TLDR;

            Just look up the symbol (ie. AAPL or GOOGL). The IXIC is an index, Alpha Vantage currently does not cover indexes.

            Further notes:

            1. Quotes from Alpha Vantage are aggregated, so any price you're getting won't be the price from what it's traded on the NASDAQ, but a quote of what the price is across exchanges.

            2. If you're looking for a specific symbol, you can check for what it's listed as using the search endpoint.

            3. Example here

            Source https://stackoverflow.com/questions/60137958

            QUESTION

            Snowplow scala collector: Kinesis stream pockinesisfirehose doesn't exist
            Asked 2020-Jan-11 at 16:19

            I am working on a click tracking project and I am using Snowplow (Open Source) for that. I am using Scala snowplow collector to collect the data and route it to Amazon Kinesis. But, when I am launching it with this configuration:

            ...

            ANSWER

            Answered 2018-Mar-29 at 14:47

            Based on the name of your variable, "pockinesisfirehose", it looks like you may be using Kinesis Firehose, not a regular Kinesis Stream. A regular Kinesis Stream is needed for this collector. Kinesis Firehose will take the data coming into the Kinesis Stream, and put it into another Amazon service (S3, Redshift, etc.)

            Source https://stackoverflow.com/questions/48295152

            QUESTION

            How can I keep my, distance representing, score field and map it into my resulting entity?
            Asked 2019-Dec-25 at 10:06

            I am using the following query:

            ...

            ANSWER

            Answered 2019-Dec-25 at 10:06

            Currently in Spring Data Elasticsearch the returned entity is populated from the values returned in the _source field. The returned sort is not part of that, but a part of the additional information return for each search hit.

            For the next release (4.0) we are currently in the process of rewriting how returned hits are handled. The next version will have a SearchHit class where T is the entity domain class, and the SearchHit object contains this entity along with other information like score, highlight, scripted fields, sort etc.

            It is planned that the repository methods then can for example return Lists or Pages of these SearchHit objects.

            But currently, the sort from the query will lead to a sorted return, but you cannot retrieve the sort values themselves - which in your case is bad, because they are calculated dynamically.

            Edit:

            You can retrieve the value by defining a property for the geo_distance in your entity and annotate this with the @ScriptedField annotation, and then provide the script in your native query. An example can be found in the at tests for Spring Data Elasticsearch. This example works with the ElaticsearchTemplate, but it should make no difference passing this query into a repository search method.

            Edit 25.12.2019:

            The current master branch, which will become Spring Data Elasticsearch 4.0, has this implemented. The found documents are returned in a SearchHit object that also contains the sortValues.

            Source https://stackoverflow.com/questions/59229450

            QUESTION

            Haskell Shake build: how can I set up a shared cache folder using shakeShare and/or shakeCloud?
            Asked 2019-Dec-14 at 17:31

            I understand this is a new feature being worked on for GHC's Hadrian build system, so the workflow might be advanced, oddly specific, or still evolving. I read these so far:

            It sounds like it should work for my use case: a domain-specific language for bioinformatics that would benefit greatly from caching comparisons between large genomes. I would be happy working from a basic minimal example or description of where to look. But I've included more details about my program too in case they make it easier...

            The shortcut interpreter builds lots of artifacts with names derived from hashes of their inputs (somewhat Nix-like), and theoretically they should be portable across machines or even operating systems. A small program run might generate files + symlinks like this:

            ...

            ANSWER

            Answered 2019-Dec-14 at 17:31

            I think there's a confusion here that newCache and newCacheIO are involved with the Cloud Shake feature. They aren't - in fact, newCache happens to be one of the things that has no impact on the cloud cache (coincidentally, rather than because of the Cache in the name). I see no reason your use case shouldn't work with Cloud Shake.

            The exception /home/jefdaj/shortcut/sharedir/.shake.cache/2faae061b9976bed/0x134125AC: getPermissions:getFileStatus: does not exist (No such file or directory) seems to imply that Shake has recorded that the above file is in the cache, and can be used to satisfy the file. So the question is where did the file go? Is it possible when you cleaned the files that they deleted the files from the cache too? Shake can be run with both --share-copy and --share-symlink - I'd recommend the former to ensure there is less action-at-a-distance, which might also explain what is deleting the files. I'd also recommend using Shake HEAD, as there are some fixes that haven't yet been released.

            If that still doesn't work, perhaps raise a ticket on the Shake GitHub?

            Source https://stackoverflow.com/questions/59147136

            QUESTION

            MissingOutputException and latency-wait error with snakemake
            Asked 2019-Dec-11 at 16:10

            I am trying to makeblastdb database in snakemake:

            ...

            ANSWER

            Answered 2019-Dec-11 at 15:32

            As you point out in the comments, you do not know how many files you get as output. There are two options:

            • Make use of output directories.
            • Make use of checkpoints, however this is kinda tricky to properly understand (in my opinion).

            Untested but might just work:

            rule makeblastdb: input: reference = "/path/to/workdir/{sample}.fasta" output: out = "{sample}.fasta.{ext}" shell: /Tools/ncbi-blast-2.9.0+/bin/makeblastdb -in {input.reference} -out {output.out} -dbtype nucl"

            Here we mark the output as an output directory named sample-ext, and the output of ncbi-blast will be in this directory called sample.ext.

            edit:

            If we do not want all these output directories what we could do is say that we expect at least 1 output, and if that one exists we assume everything went fine:

            Source https://stackoverflow.com/questions/59288002

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

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            You can download it from GitHub.

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