splicer | Caching Parallel Query engine for OpenTSDB | Analytics library

 by   turn Java Version: Current License: Apache-2.0

kandi X-RAY | splicer Summary

kandi X-RAY | splicer Summary

splicer is a Java library typically used in Analytics applications. splicer has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has high support. You can download it from GitHub.

Splicer is a tool built at Turn Inc to quickly retrieve metrics from TSDB. TSDB is generally efficient at executing queries, but in our installation we found that for certain queries, especially those which contain many tag combinations or for very long time ranges, the average time to return results can be in order of few minutes or even tens of minutes. When you want metrics to diagnose issues quickly, this can be a long wait. Splicer attempts to solve this problem by slicing long range time intervals in queries into smaller chunks and parallely executing them on an array of TSDBs (as opposed to one). The results from these slices are cached in a Redis instance. Future queries on the same metrics are looked up from this cache, and hence can be much faster. Here is a graph showing the time taken by TSDB and Splicer (with and without caching) to retrieve results for a query with varying time ranges (4 hours to 48 hours).
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            kandi-support Support

              splicer has a highly active ecosystem.
              It has 68 star(s) with 16 fork(s). There are 16 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 5 open issues and 3 have been closed. On average issues are closed in 256 days. There are no pull requests.
              OutlinedDot
              It has a negative sentiment in the developer community.
              The latest version of splicer is current.

            kandi-Quality Quality

              splicer has no bugs reported.

            kandi-Security Security

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

            kandi-License License

              splicer 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.

            kandi-Reuse Reuse

              splicer releases are not available. You will need to build from source code and install.
              Build file is available. You can build the component from source.
              Installation instructions are not available. Examples and code snippets are available.

            Top functions reviewed by kandi - BETA

            kandi has reviewed splicer and discovered the below as its top functions. This is intended to give you an instant insight into splicer implemented functionality, and help decide if they suit your requirements.
            • Find the next timestamp for this span
            • Returns true if there are more data points
            • Returns the minimum timestamp
            • Handles a POST request
            • Runs a request on the HBase
            • Generates the error message string
            • Escapes special characters in a string literal
            • Entry point for TSD
            • Returns a description of the TSSubQuery
            • Compares two TsdbResult objects
            • Process a GET request
            • Returns a string representation of the rate option instance
            • Get the token at the given index
            • Get the suffix
            • Get the next Token
            • Converts a tsQuery into a string
            Get all kandi verified functions for this library.

            splicer Key Features

            No Key Features are available at this moment for splicer.

            splicer Examples and Code Snippets

            No Code Snippets are available at this moment for splicer.

            Community Discussions

            QUESTION

            Add a custom label and tick to categorical y-axis of tile-plot in ggplot2
            Asked 2021-Mar-27 at 15:18

            I would like to add another row of empty tiles to my tile plot shown below for "No.14" bars. There would be no data for that row, so just adding an empty row to the dataframe was not sufficient as it created an NA item in the legend which I do not want.

            Here is the data:

            ...

            ANSWER

            Answered 2021-Mar-02 at 22:00

            You could define your breaks:

            bar_list = c("No. 5", "No. 6", "No. 8", "No. 10", "No. 11", "No. 14", "No. 18")

            and then

            scale_y_discrete(limits = bar_list) + inside your ggplot call.

            Source https://stackoverflow.com/questions/66447263

            QUESTION

            Add an interactive button to switch which variable is mapped to fill in ggplotly in r
            Asked 2021-Mar-12 at 15:29

            Using the same set of data, I have produced two different tile plots as shown below:

            DATA:

            ...

            ANSWER

            Answered 2021-Mar-11 at 22:32

            In case you are willing to consider using {shiny}, here is an approach to select which plot to display based on button clicks.

            Visual

            Code

            Source https://stackoverflow.com/questions/66448838

            QUESTION

            Add a 4th feature to tile plot in ggplot2 in r
            Asked 2021-Mar-04 at 17:22

            I found the following example that explains how to add patterns to the geom_tile plot but I cannot get my plot to show by following the steps. Attached is a few rows of the data:

            DATA:

            ...

            ANSWER

            Answered 2021-Mar-04 at 17:22

            Here I've created a variable with the pattern so that we can use scale_pattern_identity:

            Source https://stackoverflow.com/questions/66422388

            QUESTION

            Maven Build Failure Blue Ocean plugin for Jenkins
            Asked 2020-Sep-22 at 07:29

            I am trying to build Blue Ocean Jenkins Plugin as i am planning to make a few minor UI changes in the landing page.

            I am running mvn clean install as in the repo README.md. I bumped into an issue running the above command. Below is the build log. Any advice will be helpful. Many thanks.

            ...

            ANSWER

            Answered 2020-Sep-22 at 07:29

            I had posted the question in Jenkins User Experience Google group and learnt that Blue Ocean doesn't compile in Windows. As suggested, I am going to try running things in WSL1 or WSL2, but not native Windows.

            Source https://stackoverflow.com/questions/63988218

            QUESTION

            Produce a geom_tile plot with multiple legend categories (fill) per tile
            Asked 2020-Jun-21 at 16:44

            I am creating a tile plot for my data shared below. For each tile, there could multiple reasons of failure and I want the tiles to show multiple colors indicating that in a grid.

            ...

            ANSWER

            Answered 2020-Jun-21 at 16:44

            One approach to get at least close to a solution is to facet by category. Try this:

            Source https://stackoverflow.com/questions/62493665

            QUESTION

            How to scale up the first bullet of amCharts series?
            Asked 2019-Mar-15 at 11:09

            Here is the chart I want to modify:

            As you can see it's a line chart and an image overlies on the first bullet of each series (Users Image!).

            Now I want a circle around each Image with the same color as each series's line.

            Something like this:

            I think if we could scale up the first bullet of each series we would archive that goal.

            Here is where the code creates the bullet and its properties but the changes here will affects all bullets in userA_series :

            ...

            ANSWER

            Answered 2019-Mar-15 at 11:09

            You can use an Adapter for that. Just add an adapter to the radius property of the bullet circle:

            Source https://stackoverflow.com/questions/55179646

            QUESTION

            Plain Report in PowerBI report similar to repeatable section in Cognos
            Asked 2018-Feb-21 at 23:02

            I'm new to Power BI but am not seeing something that I feel should be pretty common report functionality. I have a cognos report that has a list grouped by specific fields, each item in the list has fields, etc. Each "item" is repeated in the list.

            Can Power BI do something similar to this functionality? I have been looking at multi-row cards, tables, etc. but I'm not seeing a repeater control or something that would allow to mimic this functionality? The multi-row cards would work but I can't style them how the customer wants or needs b/c they are printed and need to match a certain format.

            Even the single cards, if I could drop all the fields I need as single cards, format them how I want. Is there a way to have all rows repeated in a "list/set" of those single cards? Right now when I drop a bunch of single cards and a splicer it displays the first record and that is it? Surely there is a way to get all the records.

            Here is an example (I need the formatting to remain basically the same, each row from data source represents one page that looks like this)

            Thanks,

            Tim

            ...

            ANSWER

            Answered 2018-Feb-21 at 23:02

            I don't think this is possible in Power BI yet. A muti-row card has similar functionality, but is not customizable enough to match what you are trying to do. Custom formatting is one of the drawbacks of Power BI at this time.

            You can vote for this idea on the Power BI Ideas site, but I'm guessing it's not a high priority for Microsoft for now.

            Source https://stackoverflow.com/questions/48916723

            QUESTION

            Universal container conversion? if from Foldable to Alternative?
            Asked 2018-Feb-08 at 13:37

            For instance Alternative [], (<|>) = (++). So I regarded (<|>) as some kind of splicer, resulting in seemingly almost-universal container converter:

            ...

            ANSWER

            Answered 2018-Feb-08 at 13:37

            It is not always a good idea to make functions as polymorphic as theoretically possible, in particular not function arguments. As a rule of thumb: make function results as polymorphic as possible. (Often, the arguments will then already contain some type variables that are used in the result.) Only if you have a particular reason, also give the arguments extra polymorphism.

            The reason being: if everything is polymorphic, the compiler has no hints as to what concrete types to choose. Polymorphic results/values are usually ok, because these will generally be bound directly or indirectly to some top-level definition which has an explicit signature, but polymorphic arguments will often only be filled with literals (number literals are polymorphic in Haskell, and strings/lists can be too) or other polymorphic values, so you end up having to type out lots of explicit local signatures, which tends to be more awkward than having to occasionally toss in an explicit conversion function because something is not polymorphic enough.

            This idea with Foldable->Alternative specifically has another problem that the Alternative class is rather frowned upon, having no very solid mathematical backing. It's basically the class of applicative functors which for every instantiation give rise to a Monoid. Well, that can also be expressed directly, by demanding Monoid itself. The “universal container conversion function” thus already exists, it is foldMap pure.

            Source https://stackoverflow.com/questions/48680612

            QUESTION

            Optimizing loop on large data file in R, perhaps using Rcpp
            Asked 2017-Oct-12 at 13:34

            I have a loop in R that that's quite slow (but works). Currently, this calculation takes about ~3 minutes on my laptop, and I think it can be improved. Eventually, I'll loop through many data files running calculations based on the results of this code, and I'd like to make the current code faster if possible.

            Basically, for each date, for 11 different values of X, the loop grabs the last X years' worth of rainfall values (Y), finds a linear inverse weighting (Z) so that the oldest rainfall values are weighted least, multiples the rain (Y) and weights (Z) to get a vector A, then takes the sum of A as the final result. This is done for thousands of dates.

            However, I couldn't think of or find advice for any way to make this faster in R, so I attempted to rewrite it in Rcpp, in which I have limited knowledge of. My Rcpp code does not duplicate the R code exactly, as the resulting matrix is different (wrong) from what it should be (out1 vs out2; I know out1 is correct). It seems like the Rcpp code is faster, but I can only test it using a few columns because it begins crashing (fatal error in RStudio) if I attempt to run all 11 columns (i <= 10).

            I'm looking for feedback on how I can improve the R code and/or correct the Rcpp code to provide the correct result and not crash in the process.

            (Although the code I've posted below doesn't show it, the data is loaded into R the way it is [as a dataframe] for a few calculations done outside of the code shown. For the specific calculation shown here, only column 2 of the dataframe is used.)

            The data file is here: https://drive.google.com/file/d/0Bw_Ca37oxVmJekFBR2t4eDdKeGM/view?usp=sharing

            Attempt in R

            ...

            ANSWER

            Answered 2017-Oct-12 at 13:34

            Congratulations! You have an index out of bounds (OOB) error causing an undefined behavior (UB)! You can detect this in the future by changing the vector accessor from [] to () and for the matrix accessor from () to .at().

            Switching to these accessors yields:

            Source https://stackoverflow.com/questions/46697053

            QUESTION

            Design pattern, ordered set of string transformations
            Asked 2017-May-23 at 17:54

            Is there a design pattern or strategy to deal with the following scenario:

            3 different strategies for transforming strings through various different methods: decoding, decrypting, removing sections of the string at specific places, converting to array and so on.

            Each strategy use different combinations of the possible transformation to achieve its end result on the string.

            I have a class responsible for each transformation for example: Decoder, Decrypter, Splicer and so on. And I have 3 concrete classes that have the transformers it requires injected into its constructor.

            Is there an accepted design pattern for this problem. I feel that there is a more elegant way to achieve this but cannot see it

            ...

            ANSWER

            Answered 2017-May-23 at 17:54

            It's called the Chain of Responsibility Pattern using Command objects or the Command Pattern.

            I could write some code but WikiPedia does it better. Chain-Of-Responsibility

            The idea is you construct Command Objects (Decoder, Decrypter, etc.) and arrange them in the order of their responsibility.

            The Chain-Of-Responsibility comes in by their ordering.

            For your three different strategies, you are describing the pattern already. The best one their is, the Strategy Pattern. Strategy Pattern

            Some psuedo language:

            Source https://stackoverflow.com/questions/44140327

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

            Vulnerabilities

            No vulnerabilities reported

            Install splicer

            You can download it from GitHub.
            You can use splicer like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the splicer component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

            Support

            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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            https://github.com/turn/splicer.git

          • CLI

            gh repo clone turn/splicer

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            git@github.com:turn/splicer.git

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