arctic | High performance datastore for time series and tick data | Time Series Database library

 by   man-group Python Version: 1.82.1 License: LGPL-2.1

kandi X-RAY | arctic Summary

kandi X-RAY | arctic Summary

arctic is a Python library typically used in Database, Time Series Database applications. arctic has no bugs, it has no vulnerabilities, it has build file available, it has a Weak Copyleft License and it has medium support. You can install using 'pip install arctic' or download it from GitHub, PyPI.

Arctic is a high performance datastore for numeric data. It supports Pandas, numpy arrays and pickled objects out-of-the-box, with pluggable support for other data types and optional versioning. Arctic can query millions of rows per second per client, achieves ~10x compression on network bandwidth, ~10x compression on disk, and scales to hundreds of millions of rows per second per MongoDB instance. Arctic has been under active development at Man AHL since 2012.

            kandi-support Support

              arctic has a medium active ecosystem.
              It has 2978 star(s) with 582 fork(s). There are 176 watchers for this library.
              There were 2 major release(s) in the last 6 months.
              There are 77 open issues and 475 have been closed. On average issues are closed in 486 days. There are 18 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of arctic is 1.82.1

            kandi-Quality Quality

              arctic has 0 bugs and 0 code smells.

            kandi-Security Security

              arctic has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              arctic code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              arctic is licensed under the LGPL-2.1 License. This license is Weak Copyleft.
              Weak Copyleft licenses have some restrictions, but you can use them in commercial projects.

            kandi-Reuse Reuse

              arctic releases are available to install and integrate.
              Deployable package is available in PyPI.
              Build file is available. You can build the component from source.
              Installation instructions are available. Examples and code snippets are not available.

            Top functions reviewed by kandi - BETA

            kandi has reviewed arctic and discovered the below as its top functions. This is intended to give you an instant insight into arctic implemented functionality, and help decide if they suit your requirements.
            • Read data from a symbol
            • Return a timezone instance
            • Convert a DateRange to a DateRange object
            • Convert a datetime to a datetime object
            • Analyze version of symbol
            • Count the number of documents matching the given filter
            • Return True if the new count API is newer
            • Count documents in a collection
            • Write metadata for symbol
            • Write data to tickstore
            • Returns a list of versions of the library
            • Deserialize a record into a DataFrame
            • Check if the current session has been exceeded
            • Get the dtype of the data
            • Enable sharding sharding
            • Append metadata for symbol
            • Get a pymongo connection
            • Writes the item to the given version
            • Copy symbols from src to dest
            • Segment index into a numpy array
            • Snapshot a snapshot
            • Generate a multicolumn store with compressed data
            • Append a new item
            • Create a new ndarray store with uncompressed write
            • Append item to version
            • Lists all symbols
            Get all kandi verified functions for this library.

            arctic Key Features

            No Key Features are available at this moment for arctic.

            arctic Examples and Code Snippets

            waffler,Arctic voices (ICASSP 2019 experiment),Data preparation
            Pythondot img1Lines of Code : 32dot img1License : Permissive (Apache-2.0)
            copy iconCopy
            cd $WAFFLER
            mkdir database
            cd database/
            for VNAME in bdl slt jmk awb rms clb ksp ; do
              wget ${ARCTIC_DB_DIR}/cmu_us_${VNAME}_arctic.tar.bz2 &&
              tar jxvf cmu_us_${VNAME}_arctic.tar.b  
            copy iconCopy
            us_arctic_base <- ptolemy::us_arctic()
            #> importGSHHS status:
            #> --> Pass 1: complete: 9256 bounding boxes within limits.
            #> --> Pass 2: complete.
            #> --> Clipping...
            #> Warning  
            Quote Unquote,3. Build Instructions,3.2. Android Studio Arctic Fox
            Javadot img3Lines of Code : 20dot img3License : Permissive (Apache-2.0)
            copy iconCopy
            Android Studio > Get from Version Control
             > Clone
            NOTE: import to clone for IDE as submodules maintained
            VCS > Git > Branches...
             > Remote Branches > origin/main > Checkout
            qlib - example-orderbook data
            Pythondot img4Lines of Code : 235dot img4License : Permissive (MIT License)
            copy iconCopy
            # Copyright (c) Microsoft Corporation.
            # Licensed under the MIT License.
            from arctic.arctic import Arctic
            import qlib
            from import D
            import unittest
            class TestClass(unittest.TestCase):
                Useful commands
                - run all tests: pyte  
            sentence-transformers - in document search crossencoder
            Pythondot img5Lines of Code : 33dot img5License : Non-SPDX (Apache License 2.0)
            copy iconCopy
            This example show how in-document search can be used with a CrossEncoder.
            The document is split into passage. Here, we use three consecutive sentences as a passage. You can use shorter passage, for example, individual sentences,
            or longer passag  

            Community Discussions


            Allow insecure protocols, android gradle
            Asked 2022-Mar-17 at 10:30

            I recently updated my android studio to Arctic Fox and got an error in my project



            Answered 2022-Mar-17 at 10:30

            For insecure HTTP connections in Gradle 7+ versions, we need to specify a boolean allowInsecureProtocol as true to MavenArtifactRepository closure.
            Since you have received this error for sonatype repository, you need to set the repositories as below:

            1. Groovy DSL



            Android Studio Disconnects From Physical Device
            Asked 2022-Mar-06 at 15:11

            Android Studio Bumblebee (2021.1.1) was released stably on 25 January 2022 bundled with a new Device Manager (accompanying new support for Android 11+ device debugging over WIFI). I jumped on this stable release, updating from Android Studio Arctic Fox (2020.3.1 Patch 4).

            Unfortunately however, since updating, physical devices/handsets don't remain connected to Android Studio for the purpose of debugging. I can confirm that the issue was introduced from Android Studio Bumblebee onwards (occurring in Beta and Canary builds also). I've reproduced the issue on Android Studio Bumblebee (Stable), Chipmunk (Beta), and Dolphin (Canary), but Android Studio Arctic Fox (superseded Stable) continues to work just fine.

            The issue occurs soon after opening Android Studio (Bumblebee+) with one of my physical devices connected. Everything appears fine initially and I may even have enough time to deploy my project to the handset, before the device disappears from Android Studio (as if I'd physically disconnected the USB cable from my computer or from the handset itself).

            I've tried a fair few things in an attempt to determine a root cause. These include testing:

            • With different USB cables.
            • With different handsets (both varying makes and models).
            • With various versions of the Android Studio IDE (as mentioned above).
            • Plugging the USB cables into different USB ports on my computer.
            • Rebooting handsets and my computer.
            • Restarting Android Studio.
            • Invalidating caches and restarting Android Studio.
            • adb kill-server then adb start-server.
            • Revoking/reaccepting USB debugging authorization.
            • Reinstalled build tools/platform tools, and ADB.
            • A great number of further possibilities, to no avail.

            I searched and read through remotely similar issues, including (but not limited to) these:

            This particular comment in one of the above issues clued me onto a possible root cause:

            I have been fighting for a few days with adb not seeing my device. After trying many other posted solutions, I discovered that the issue was with Chrome also trying to connect its debugger to a web view. If Chrome is connected using chrome://inspect, then adb seems to disconnect. Quitting Chrome resolves the issue. Then I can connect with Android Studio and then restart Chrome and reconnect. Hope this helps someone else.

            However I've been unable to do anything with the above discovery, other than close Google Chrome, and hope for the best. Obviously this isn't an ideal solution. It appears as though the moment Google Chrome shows the connected physical device in the chrome://inspect/#devices page, the physical device promptly becomes unavailable through Android Studio.

            I've jumped back to Android Studio Arctic Fox (2020.3.1 Patch 4) for the moment, however this brings with it other issues (my current core project targets the latest SDK version, which requires the updated IDE).

            Absolutely any help with this would be insanely appreciated. I've exhausted just about every avenue that I can think of!



            Answered 2022-Feb-01 at 17:29

            I solved the problem by disabling

            Settings -> Build, Execution, Deployment -> Debugger -> "Enable adb mDNS for wireless debugging"



            A failure occurred while executing org.jetbrains.kotlin.gradle.internal.KaptWithoutKotlincTask$KaptExecutionWorkAction?java.lang.reflect.Invocation?
            Asked 2022-Mar-06 at 10:01

            when I run android application in real device I am getting following gradle errors



            Answered 2021-Aug-21 at 12:15

            I fixed it my problem by updating current kotlin version to latest version and moshi version to 1.12.0



            Unable to find bundled Java version with flutter doctor, after updating Android studio Arctic Fox(2020.3.1) on M1 Apple Silicon
            Asked 2022-Feb-25 at 06:46

            I'm facing a weird issue. Before I updated my Android Studio, everything went fine in flutter doctor. Once I've updated Android Studio, when I run the doctor, it's showing "Unable to find bundled Java version". I've already downloaded Java installer and installed it on my M1 Mac, but after I restarted, running flutter doctor still shows the same error. The weird thing is, when I uninstall the Arctic Fox version and re-install the older Android Studio version, everything goes fine again when running the doctor. How can I resolve this?



            Answered 2021-Jul-29 at 03:10

            COPY folder /Applications/Android Studio to /Applications/Android Studio



            Jetpack Compose preview stopped working in Arctic Fox with Patch 1
            Asked 2022-Feb-24 at 11:36

            With the first patch for AS Arctic Fox Jetpack Compose previews stopped working.

            I'm getting this error for all previews - even older ones, which worked fine a while back:



            Answered 2022-Feb-24 at 11:36

            This got fixed in AS Bumblebee, patch 2.



            Android Studio Arctic Fox build failed after update
            Asked 2022-Feb-21 at 11:52

            Android Studio updated to the newest Arctic Fox version, after opening a project it prompted me to update the Gradle plug-in, which I did.

            Now everytime I try to run an app (with the updated plug-in) the build fails with the next output: Zip file '/home/user/path-to-my-project/app/build/outputs/apk/debug/app-debug.apk' already contains entry 'AndroidManifest.xml', cannot overwrite

            Old apps that are not updated to newest plug-in release does not have this problem.

            I already tried with this solution but it didn't help.

            My build.gradle file looks like this:



            Answered 2021-Aug-03 at 14:58

            After upgrading Android Gradle Plugin from version 3.4.2 to 7.0.0 (and Gradle from 6 to 7) I also stared having the same error. In my case it turned out that AndroidManifest.xml was inside the directory that was pointed to by resources.srcDir. Gradle tried to copy the AndroidManifest.xml from that directory into APK where a compiled version was already bundled.



            Android XML Preview Unclear After Update to Arctic Fox
            Asked 2022-Feb-15 at 16:34

            After updated to Arctic Fox version, the xml layout previewer looks fuzzy, unclear, see below:

            How to fix it?



            Answered 2021-Sep-03 at 12:11

            Not just XML preview, the Jetpack Compose preview is also very blurry on my Macbook. I tried the old trick Help > Edit custom properties and add:


            But this did not work (maybe it will work on Windows, you can try). Currently I have to revert back to Android Studio 4.2.2 .



            Windowed mode emulator after Bumblebee update
            Asked 2022-Feb-15 at 08:44

            Today I updated my Android Studio from the Arctic Fox to Bumblebee 2021.1.1, and I realized my AVD and emulator windows changed a bit. They were on separate windows, now they are on the right side-menu.

            I windowed the emulator again to get the old style, but the mobile-phone on the emulator is not separated from the menu. In the older version, I only had the phone as a separate window, I didn't have window bars and side fillers that are marked on the picture below. How can I get rid of them and only get the phone instead of the whole window? I don't want it as "emulator window" but rather plain "phone".



            Answered 2022-Jan-29 at 09:37

            If you want the old look in Arctic Fox, go to

            File->Settings->Tools->Emulator and unselect "Launch in a tool window".

            This way it will launch it seperately which is the same as in the old version.



            Access to 'viewBinding' exceeds its access rights
            Asked 2022-Feb-10 at 12:57

            After updating Android Studio to Arctic Fox and Android Gradle plugin to 7.0.0 I'm facing this warning, I mean the app can be built successfully nonetheless of this warning but what I am missing here? What's the problem here?

            According to the official View Binding reference, I'm enabling it the right way. here is my build.gradle if anyone is interested in checking.

            There are some related questions but I don't think they are relevant in this situation.



            Answered 2022-Jan-06 at 11:08

            Remove equal sign. On the screenshot you use Kotlin configuration, but Groovy is needed here. See the difference:



            Weird response printed by Network Inspector of Bumble Bee Android Studio
            Asked 2022-Feb-09 at 09:36

            Updated Android Studio to Bumble Bee and wanted to use Network Inspector. Response is no longer plain text. It works well on Network Profiler of Arctic Fox (previous version of Android Studio). I tried to look at update docs but could not find anything in this direction. Is there some setting that needs to be changed?

            Android Studio Bumblebee | 2021.1.1 Patch 1



            Answered 2022-Feb-09 at 09:36

            I had the same problem after updating Android Studio to Bumble Bee. Please set acceptable encodings in the request header. ("Accept-Encoding", "identity") It works for me.


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


            No vulnerabilities reported

            Install arctic

            You can install using 'pip install arctic' or download it from GitHub, PyPI.
            You can use arctic like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.


            You can find complete documentation at Arctic docs.
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