orc | Apache ORC - the smallest , fastest columnar storage

by apache HTML Version: v1.7.9 License: Apache-2.0

X-Ray Key Features Code Snippets(3)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | orc Summary

orc is a HTML library typically used in Big Data, Hadoop applications. orc has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

This project includes both a Java library and a C++ library for reading and writing the Optimized Row Columnar (ORC) file format. The C++ and Java libraries are completely independent of each other and will each read all versions of ORC files. But the C++ library only writes the original (Hive 0.11) version of ORC files, and will be extended in the future.

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Quality

Security

License

Reuse

Support

orc has a low active ecosystem.

It has 607 star(s) with 445 fork(s). There are 47 watchers for this library.

It had no major release in the last 12 months.

There are 18 open issues and 61 have been closed. On average issues are closed in 11 days. There are 7 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of orc is v1.7.9

Quality

orc has no bugs reported.

Security

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

License

orc 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

orc releases are available to install and integrate.

Installation instructions are not available. Examples and code snippets are available.

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orc Key Features

No Key Features are available at this moment for orc.

orc Examples and Code Snippets

Returns an orc Castle .

java

Lines of Code : 4

License : Non-SPDX

Copy

@Override
  public Castle createCastle() {
    return new OrcCastle();
  }

Builds an orc castle .

java

Lines of Code : 4

License : Non-SPDX

Copy

@Override
  public King createKing() {
    return new OrcKing();
  }

Returns a human readable string describing this orc light .

java

Lines of Code : 4

License : Non-SPDX

Copy

@Override
  public String toString() {
    return "The orc blacksmith";
  }

Community Discussions

Trending Discussions on orc

Why Do I Keep Receiving an Access Violation Exception?

Replace certain words in a 2D array

Hive: Query executing from hours

Complicated Find row in duplicate show which column A or B or C

Python: Avoid Nested loop conditions

Load partitioned BigQuery table from partitioned ORC

java.lang.NullPointerException when merging output files

Reading a zst archive in Scala & Spark: native zStandard library not available

Unable to create Managed Hive Table after Hortonworks (HDP) to Cloudera (CDP) migration

Spark - I cannot increase number of tasks in local mode

QUESTION

Why Do I Keep Receiving an Access Violation Exception?

Asked 2021-Jun-13 at 00:59

I am currently on the path of learning C++ and this is an example program I wrote for the course I'm taking. I know that there are things in here that probably makes your skin crawl if you're experienced in C/C++, heck the program isn't even finished, but I mainly need to know why I keep receiving this error after I enter my name: Exception thrown at 0x79FE395E (vcruntime140d.dll) in Learn.exe: 0xC0000005: Access violation reading location 0xCCCCCCCC. I know there is something wrong with the constructors and initializations of the member variables of the classes but I cannot pinpoint the problem, even with the debugger. I am running this in Visual Studio and it does initially run, but I realized it does not compile with GCC. Feel free to leave some code suggestions, but my main goal is to figure out the program-breaking issue.

...

ANSWER

Answered 2021-Jun-13 at 00:59

The problem is here:

Source https://stackoverflow.com/questions/67953979

QUESTION

Replace certain words in a 2D array

Asked 2021-Jun-12 at 18:44

The method plant() takes a String and a 2D array of String[][] as its inputs. The strings within the array should not be replaced by the inputted word.

...

ANSWER

Answered 2021-Jun-03 at 10:30

This should help you:

Source https://stackoverflow.com/questions/67795059

QUESTION

Hive: Query executing from hours

Asked 2021-Jun-08 at 23:08

I'm try to execute the below hive query on Azure HDInsight cluster but it's taking unprecedented amount of time to finish. Did implemented hive settings but of no use. Below are the details:

Table

...

ANSWER

Answered 2021-Jun-07 at 03:19

if you don't have index on your fk columns , you should add them for sure , here is my suggestion:

Source https://stackoverflow.com/questions/67864692

QUESTION

Complicated Find row in duplicate show which column A or B or C

Asked 2021-May-28 at 14:28

Could you please help me for below formula little bit complicated Problem is In a sheet I have three column A,B,C any one column amount if it is same in D column need to highlight and show which column A or B orC.. Example

...

ANSWER

Answered 2021-May-28 at 13:57

XLOOKUP unlike VLOOKUP returns a reference to the cell and not just the value of the cell.

With this in mind =XLOOKUP(D2,A2:C2,A2:C2,NA()) will return the value if it exists as well as the reference.

If we wrap the Return Array with the Column function it will return the column number.
=XLOOKUP(D2,A2:C2,COLUMN(A2:C2),NA())

Add the ADDRESS function to return the cell address (this will return the address on row 1)
=XLOOKUP(D2,A2:C2,ADDRESS(1,COLUMN(A2:C2),4),NA())

Now substitute the 1 in the cell address with a blank: =SUBSTITUTE(XLOOKUP(D2,A2:C2,ADDRESS(1,COLUMN(A2:C2),4),NA()),"1","")

Source https://stackoverflow.com/questions/67739702

QUESTION

Python: Avoid Nested loop conditions

Asked 2021-May-17 at 15:05

Could someone tell me how can I reduce the nested for loops and if conditions from the below python code, so that it will become less complex. As of now, I am unable to break this code further, hence need help.

...

ANSWER

Answered 2021-May-17 at 15:05

Please consider sorting sequences and joining them with itertools.groupby() or just a generator:

Source https://stackoverflow.com/questions/67571389

QUESTION

Load partitioned BigQuery table from partitioned ORC

Asked 2021-May-10 at 11:56

I want to create a BigQuery partitioned table by mydate column from partitioned ORC.

Files in GCS :

...

ANSWER

Answered 2021-May-10 at 11:56

I think we can do this by Providing a custom partition key schema encoded via the source_uri_prefix field.

Using below links and examples [1] & [2] related to Partition Schema detection modes, I think you can do it. [1] https://cloud.google.com/bigquery/docs/hive-partitioned-loads-gcs#command-line-tool [2] https://cloud.google.com/bigquery/docs/hive-partitioned-loads-gcs

Source https://stackoverflow.com/questions/67467830

QUESTION

java.lang.NullPointerException when merging output files

Asked 2021-Apr-20 at 10:28

I have a table with 3 partition columns

...

ANSWER

Answered 2021-Apr-20 at 10:28

Setting this to false helped.

Source https://stackoverflow.com/questions/67174776

QUESTION

Reading a zst archive in Scala & Spark: native zStandard library not available

Asked 2021-Apr-18 at 21:25

I'm trying to read a zst-compressed file using Spark on Scala.

...

ANSWER

Answered 2021-Apr-18 at 21:25

Since I didn't want to build Hadoop by myself, inspired by the workaround used here, I've configured Spark to use Hadoop native libraries:

Source https://stackoverflow.com/questions/67099204

QUESTION

Unable to create Managed Hive Table after Hortonworks (HDP) to Cloudera (CDP) migration

Asked 2021-Apr-17 at 16:36

We are testing our Hadoop applications as part of migrating from Hortonworks Data Platform (HDP v3.x) to Cloudera Data Platform (CDP) version 7.1. While testing, we found below issue while trying to create Managed Hive Table. Please advise on possible solutions. Thank you!

Error: Error while compiling statement: FAILED: Execution Error, return code 40000 from org.apache.hadoop.hive.ql.ddl.DDLTask. MetaException(message:A managed table's location should be located within managed warehouse root directory or within its database's managedLocationUri. Table MANAGED_TBL_A's location is not valid:hdfs://cluster/prj/Warehouse/Secure/APP/managed_tbl_a, managed warehouse:hdfs://cluster/warehouse/tablespace/managed/hive) (state=08S01,code=40000)

DDL Script

...

ANSWER

Answered 2021-Apr-13 at 11:18

hive.metastore.warehouse.dir - is a warehouse root directory.

When you create the database, specify MANAGEDLOCATION - a location root for managed tables and LOCATION - root for external tables.

MANAGEDLOCATION is within hive.metastore.warehouse.dir

Setting the metastore.warehouse.tenant.colocation property to true allows a common location for managed tables (MANAGEDLOCATION) outside the warehouse root directory, providing a tenant-based common root for setting quotas and other policies.

See more details in this manual: Hive managed location.

Source https://stackoverflow.com/questions/67070435

QUESTION

Spark - I cannot increase number of tasks in local mode

Asked 2021-Apr-12 at 19:02

I tried to submit my application and change the coalese[k] in my code by different combinations:

Firstly, I read some data from my local disk:

...

ANSWER

Answered 2021-Apr-12 at 18:13

Spark can read a csv file only with one executor as there is only a single file.

Compared to files which are located in a distributed files system such as HDFS where a single file can be stored in multiple partitions. That means your resulting Dataframe df has only a single partition. You can check that using df.rdd.getNumPartitions. See also my answer on How is a Spark Dataframe partitioned by default?

Note that coalesce will collapse partitions on the same worker, so calling coalesce(16) will not have any impact at all as the one partition of your Dataframe is anyway located already on a single worker.

In order to increase parallelism you may want to use repartition(16) instead.

Source https://stackoverflow.com/questions/67059017

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

Vulnerabilities

No vulnerabilities reported

Install orc

You can download it from GitHub.

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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