druid | Alibaba cloud computing platform DataWorks ( https

 by   alibaba Java Version: 1.2.20 License: Apache-2.0

kandi X-RAY | druid Summary

kandi X-RAY | druid Summary

druid is a Java library. druid 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, Maven.

Alibaba cloud computing platform DataWorks (https://help.aliyun.com/document_detail/137663.html) team produced a database connection pool for monitoring

            kandi-support Support

              druid has a highly active ecosystem.
              It has 26964 star(s) with 8417 fork(s). There are 1733 watchers for this library.
              There were 2 major release(s) in the last 6 months.
              There are 2513 open issues and 1444 have been closed. On average issues are closed in 464 days. There are 156 open pull requests and 0 closed requests.
              It has a positive sentiment in the developer community.
              The latest version of druid is 1.2.20

            kandi-Quality Quality

              druid has 0 bugs and 0 code smells.

            kandi-Security Security

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

            kandi-License License

              druid 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

              druid releases are available to install and integrate.
              Deployable package is available in Maven.
              Build file is available. You can build the component from source.
              druid saves you 793924 person hours of effort in developing the same functionality from scratch.
              It has 384994 lines of code, 31538 functions and 5043 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed druid and discovered the below as its top functions. This is intended to give you an instant insight into druid implemented functionality, and help decide if they suit your requirements.
            • Parse alter table .
            • Parse a SQL statement list .
            • Parses a date time string .
            • Parse values - clause .
            • scan SQL type .
            • Read configuration from properties .
            • Parses SHOW statement
            • Computes the user agent based on the given string .
            • Transform Oracle DataType to SQLDataType
            • Parse a single SQL statement list .
            Get all kandi verified functions for this library.

            druid Key Features

            No Key Features are available at this moment for druid.

            druid Examples and Code Snippets

            No Code Snippets are available at this moment for druid.

            Community Discussions


            I can't read .properties when I run tomcat with idea
            Asked 2022-Apr-02 at 16:04

            I'm learning JavaWeb and deploying local tomcat9 in idea. An exception occurred when I tried to connect to the database by reading the properties file. It should be that my properties file was not found.

            I tried to change the file path but it didn't work. What should I do?

            This is my method to connect to the database and message



            Answered 2022-Apr-02 at 16:04


            Getting Items out of a Json Array
            Asked 2022-Mar-23 at 01:04

            I wanted to get Strings/ints of several Items out of a JSON Array, but I don't really know how I can achieve that



            Answered 2022-Mar-23 at 01:04

            The value of the key "mythic_plus_best_runs" is an array.

            So, you must loop over it to get all "dungeon" values.

            Source https://stackoverflow.com/questions/71580606


            How to submit command with image buffer as payload from another thread
            Asked 2022-Feb-18 at 11:11

            I am trying to download image using another thread and to send downloaded bytes in ImageBuf object to main thread using Druid command system. The code I am using is:



            Answered 2022-Feb-18 at 11:11


            Add generic argument: pub(crate) const UPDATE_IMAGE_COMMAND: Selector = Selector::new("update_image");

            Thanks to comment from @Caesar i applied .submit_command::(…) and figured out that druid Selector have generic type on them which determines what kind of payload can be sent with the finally generated Command. Default type for Selector is so the fix for my problem was just to add ImageBuf as generic argument for selector as shown in the code snippet above

            Source https://stackoverflow.com/questions/71108954


            Why gradle not use my specified maven settings.xml?
            Asked 2022-Feb-18 at 06:54

            My maven settings.xml is as follows. As you can see, there is no http repository url. All repository url is started with https.



            Answered 2022-Feb-18 at 06:54

            I find answer myself. I used to config ~/.gradle/init.gradle and set a http url which force gradle to use that insecure repository

            Source https://stackoverflow.com/questions/71158529


            Can we modify timestamp in time picker in grafana?
            Asked 2022-Feb-18 at 00:43

            I am using Druid as datasource for my grafana. I want to ignore the first and last data points from the druid query result(like trimming the edges). I am thinking of modifying the timestamp passed to druid query from the timepicker. But I cannot find a way to modify the timestamp choosen from the timepicker in grafana. Is there any other way to ignore the first and last data points? Sample query sent by grafana



            Answered 2022-Feb-14 at 13:24

            I don't know about Druid specifically, but I can answer your question and tell you that it is possible to modify the time range selected by the time picker.

            That is by using the built in variables $__from and $__to. Those give you begin and respectively end of the selected time range in UNIX milliseconds. You can then add/subtract milliseconds to/from those to modify the time range used in your query (e.g. in the WHERE clause).

            Source https://stackoverflow.com/questions/71099814


            Pagination issue with real time data in Druid Scan query
            Asked 2022-Jan-28 at 20:32

            I have gone through following Druid Scan query documentation https://druid.apache.org/docs/0.20.0/querying/scan-query.html . I didn't understand the part when it says. "note that if the underlying datasource is modified in between page fetches in ways that affect overall query results, then the different pages will not necessarily align with each other."

            In my case data is added to Druid in real time which means suppose I queried for last one hour data(4-5PM), it might possible that earlier we had 40 records for that query but during the query we received 10 new records. My assumption is that all new records should get added post 40th record and it should not impact the current running paging offset. Please help me how realtime ingestion of data can impact the Druid pagination and what could be the possible fix for that.

            offset : Together, "limit" and "offset" can be used to implement pagination. However, note that if the underlying datasource is modified in between page fetches in ways that affect overall query results, then the different pages will not necessarily align with each other.



            Answered 2022-Jan-28 at 20:32

            The docs describe that the offset/limit are application side values. From the database perspective, it is running the whole query again with every request and just returning the rows between offset and offset + limit.

            So, if ordered by __time desc, new rows will appear at the top of the results and therefore shift the content of the pagination. If sorted __time asc, and no out of time order rows are ingested between calls, then the pagination should be constant and new rows appear at the end.

            Also remember that it is a good practice to limit the overall timeframe that you are querying.

            Source https://stackoverflow.com/questions/70858129


            How to configure druid batch indexing jobs dynamic EMR cluster for batch ingestion?
            Asked 2022-Jan-22 at 03:07

            I am trying to automate druid batch ingestion using Airflow. My data pipeline creates EMR cluster on demand and shut it down once druid indexing is completed. But for druid we need to have Hadoop configurations in druid server folder ref. This is blocking me from dynamic EMR clusters. Can we override Hadoop connection details in Job configuration or is there a way to support multiple indexing jobs to use different EMR clusters ?



            Answered 2022-Jan-20 at 22:21

            In researching how this might be done, I found hadoopDependencyCoordinates property here: https://druid.apache.org/docs/0.22.1/ingestion/hadoop.html#task-syntax

            which seems relevant.

            Source https://stackoverflow.com/questions/70721191


            Error getting async data from Solis Pro (Ginlong) plataform with payload
            Asked 2022-Jan-18 at 14:00

            I'm developing a web scraper to mine data from the Solis Pro platform (Ginlong), but I'm having problems getting the asynchronous data from the plants registered by the user. I'm using Selenium + bs4 and the following has happened. The url is https://m.ginlong.com/pro/epc/plantview/view/doAsyncPlantList.json. I send a payload and in theory I should receive the data, but I am either receiving an error or only part of the data (only {status: 1}).

            Plataform and payload



            Answered 2022-Jan-18 at 14:00

            Change: response = webdriver.request('POST', url+'pro/epc/plantview/view/doAsyncPlantList.json', headers=headers, data=postData)

            to this: response = webdriver.request('POST', url+'pro/epc/plantview/view/doAsyncPlantList.json', headers=headers, json=json.dumps(postData))

            (remember to import json) :)

            I am not sure why this works but it does, for further reading see this discussion about the difference between data= and json= : Difference between data and json parameters in python requests package

            Also, I've managed to get it work with requests only which should speed things up, note that I've had to change my url at the end to "cpro" not "pro" like yours since I don't have a pro account: "https://m.ginlong.com/pro/epc/plantview/view/doAsyncPlantList.json"

            Source https://stackoverflow.com/questions/70754783


            Druid can not see/read GOOGLE_APPLICATION_CREDENTIALS defined on env path
            Asked 2022-Jan-18 at 13:31

            I installed apache-druid-0.22.1 as a cluster (master, data and query nodes) and enabled “druid-google-extensions” by adding it to the array druid.extensions.loadList in common.runtime.properties. Finally I defined GOOGLE_APPLICATION_CREDENTIALS ( which has the value of service account json as defined in https://cloud.google.com/docs/authentication/production )as an environment variable of user that run the druid services. However, I got the following error when I try to ingest data from GCR buckets:

            Error: Cannot construct instance of org.apache.druid.data.input.google.GoogleCloudStorageInputSource, problem: Unable to provision, see the following errors: 1) Error in custom provider, java.io.IOException: The Application Default Credentials are not available. They are available if running on Google App Engine, Google Compute Engine, or Google Cloud Shell. Otherwise, the environment variable GOOGLE_APPLICATION_CREDENTIALS must be defined pointing to a file defining the credentials. See https://developers.google.com/accounts/docs/application-default-credentials for more information. at org.apache.druid.common.gcp.GcpModule.getHttpRequestInitializer(GcpModule.java:60) (via modules: com.google.inject.util.Modules$OverrideModule -> org.apache.druid.common.gcp.GcpModule) at org.apache.druid.common.gcp.GcpModule.getHttpRequestInitializer(GcpModule.java:60) (via modules: com.google.inject.util.Modules$OverrideModule -> org.apache.druid.common.gcp.GcpModule) while locating com.google.api.client.http.HttpRequestInitializer for the 3rd parameter of org.apache.druid.storage.google.GoogleStorageDruidModule.getGoogleStorage(GoogleStorageDruidModule.java:114) at org.apache.druid.storage.google.GoogleStorageDruidModule.getGoogleStorage(GoogleStorageDruidModule.java:114) (via modules: com.google.inject.util.Modules$OverrideModule -> org.apache.druid.storage.google.GoogleStorageDruidModule) while locating org.apache.druid.storage.google.GoogleStorage 1 error at [Source: (org.eclipse.jetty.server.HttpInputOverHTTP); line: 1, column: 180] (through reference chain: org.apache.druid.indexing.overlord.sampler.IndexTaskSamplerSpec["spec"]->org.apache.druid.indexing.common.task.IndexTask$IndexIngestionSpec["ioConfig"]->org.apache.druid.indexing.common.task.IndexTask$IndexIOConfig["inputSource"]) A case reported on this matter caught my attention. But I can not see any verified solution to that case. Please help me.

            We want to take data from GCP to on prem Druid. We don’t want to take cluster in GCP. So that we want solve this problem.



            Answered 2022-Jan-11 at 19:38

            You must define the GOOGLE_APPLICATION_CREDENTIALS that points to a file path, and not contain the file content.

            In a cluster (like Kubernetes), it's usual to mount a volume with the file in it, and to se the env var to point to that volume.

            Source https://stackoverflow.com/questions/70666604


            Is there a way to make a variable that changes based on the result of a random.choice?
            Asked 2022-Jan-09 at 19:15

            At the moment my code has multiple if statements that are similar (see below) and i was wondering if there was a way to make a variable or something that can change based on what comes out of the random.choice?

            So if it landed on druid instead of checking if the result was barbarian then moving onto the next block of code it would just take druid from the random.choice output and change the import for a single block of code accordingly

            sorry if this is worded badly, it's hard for me to convey what i mean, i can elaborate if needed



            Answered 2022-Jan-09 at 19:06

            You can use python's dict as a hash-map in order to avoid those ifs:

            Source https://stackoverflow.com/questions/70644460

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


            No vulnerabilities reported

            Install druid

            You can download it from GitHub, Maven.
            You can use druid 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 druid 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 .


            中文 https://github.com/alibaba/druid/wiki/%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98English https://github.com/alibaba/druid/wiki/FAQDruid Spring Boot Starter https://github.com/alibaba/druid/tree/master/druid-spring-boot-starter
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