Implementing INotifyPropertyChanged - does a better way exist?

Microsoft should have implemented something snappy for INotifyPropertyChanged, like in the automatic properties, just specify {get; set; notify;} I think it makes a lot of sense to do it. Or are...

Question about terminating a thread cleanly in .NET

I understand Thread.Abort() is evil from the multitude of articles I've read on the topic, so I'm currently in the process of ripping out all of my abort's in order to replace it for a cleaner...

Vim: insert mode is very slow with 400+ lines

I have a file with 400+ lines (it's a thesis). When I edit it somewhere near the top (say, on line 20), Vim is snappy as always. However, editing it near the bottom (around line 400) causes a...

How do I read Snappy compressed files on HDFS without using Hadoop?

I'm storing files on HDFS in Snappy compression format. I'd like to be able to examine these files on my local Linux file system to make sure that the Hadoop process that created them has...

WARN mapred.JobClient: No job jar file set. User classes may not be found

My code is import java.io.IOException; import java.util.*; import org.apache.hadoop.fs.Path; import org.apache.hadoop.conf.*; import org.apache.hadoop.io.*; import...

wkhtmltopdf repeatitive background image on all pages

I am struggling to make a repetitive background for a generated PDF. I have a certificate that is automatically generated and certificate design has a frame that should repeat on all the...

PySpark error: "Input path does not exist"

I am new to Spark and I code in Python. Following exactly my "Learning Spark" guidelines, I see "You don't need to have Hadoop installed to run Spark" Yet when I simply try to count the lines in...

Methods for writing Parquet files using Python?

I'm having trouble finding a library that allows Parquet files to be written using Python. Bonus points if I can use Snappy or a similar compression mechanism in conjunction with it. Thus far the...

Improving build times with Google Mock

I'm looking for strategies to improve my build times with googletest and am wondering if what I'm seeing is typical, if there's a particular feature that can be avoided to improve build times, or...

Symfony :Your requirements could not be resolved to an installable set of packages for "composer install"

I encountered this error while installing composer for my project. Here is my composer.json { "name": "accessleader/project", "license": "proprietary", "type": "project", "autoload":...

ADB finds no devices on Ubuntu Linux

I think I've gone over just about every related thread on SO over this topic(there's a lot), but none seem to solve my issue. Running Ubuntu 16.04 LTS, and have attempted to get ADB working with...

Kafka API: java.io.IOException: Can't resolve address: xxx.x.x.xx:9091

I am trying to send messages to Kafka which is installed in a Ubuntu VM. There are 3 Kafka brokers which have been started in the VM and a Consumer listening on the Topic also in the VM. All this...

Save state when navigating between fragments

I'm working on an app and I have a menu with a NavigationDrawer to navigate between fragments. In one of the fragments I make a call to the backend and then save the results in a list. When I...

Multiple compression on same hive table

I have a Hive table partitioned by Year/Month and it contains data for at least 7 years. What I want to do it compress the latest data (like upto 1 year old) through Snappy but the older data...

Error relocating - symbol not found - building docker-fpm-alpine image

Trying to create an image (from a working one) I got this error, been googling the solution but couldn't find a proper one, I asume something's wrong with libraries. Don't fully understand what...

Snappy Laravel PDF export not loading CSS

I'm trying to export a page in PDF format with Snappy Laravel. I have the page with all the CSS and it works great and looks great, but when I try to export it, my page is downloaded in pdf format...

Laravel snappy - How to Load internal/external css

I am trying to get the css styling working for my pdf documents. So far no such luck. Is it possible to use CDN style sheet documents? When I add say bootstrap stylesheet cdn to my view's head...

How to fix amplify CLI error : "-bash: amplify: command not found"

I had installed amplify cli on my laptop and even though it threw errors, I had used the amplify configure command anyway and it worked. But now when I'm trying to do the same thing on a different...

Flutter hero transaction container with conditional widgets

I'm trying to implement a hero transaction which is going smoothly, but the container that I'm transitioning has two variants (small/big). Big: Small: As you can see is the small version the...

How to handle UnkownProducerIdException

We are having some troubles with Spring Cloud and Kafka, at sometimes our microservice throws an UnkownProducerIdException, this is caused if the parameter transactional.id.expiration.ms is...

Docker-compose and mongoDB: Failed to start up WiredTiger under any compatibility version?

I have the following docker-compose file: version: "3" services: # # APIs #---------------------------------------------- pokerstats: image: pokerstats ...

How does parquet determine which encoding to use?

Context: I have two identical datasets (say Left and Right) with 112 parquet files in each dataset. These parquet files were created using Hive, by converting delimited flat files. The process...

Flume Exception in thread "main" java.lang.OutOfMemoryError: Java heap space

[email protected]:/usr/lib/apache-flume-1.6.0-bin/bin$ ./flume-ng agent --conf ./conf/ -f /usr/lib/apache-flume-1.6.0properties -Dflume.root.logger=DEBUG,console -n agent Info: Including Hadoop...

Check if file exists in HDFS path?

How can I check if a file exists given a certain base path. I am providing the method a file list for example: file1.snappy, file2,snappy,... I need to check if file exists in either of the given...

why it is too slow when insert hdfs hive partitioned table?

I ve created table like this: (non partioned) create external table `ersin_db`.`DW_ETL` ( `ID` INT, `NAME` STRING ) stored as parquet LOCATION '/user/ers/ersyn61/' ...

Cassandra Windows 10 Access Violation

EDIT: Although yukim's workaround does work, I found that by downgrading to JDK 8u251 vs 8u261, the sigar lib works correctly. Windows 10 x64 Pro Cassandra 3.11.7 NOTE: I have JDK 11.0.7 as my...

MongoDB-Community not starting on Mac and giving errors

I am writing to inform that i had installed mongodb-community some time back using brew (High Sierra) and it was running. Then recently i upgraded and it doesn't seem to wire up. When i am running...

the Binary is not set for in snappy wrapper for wkhtmltopdf in codeigniter

How to use snappy library with codeigniter. i've installed and have it in my libraries folder . like require_once dirname(FILE) . '/snappy/vendor/autoload.php'; use Knp\Snappy\Pdf; class...

Composer install suddenly fails because of symfony/flex

I'm having this problem out of the blue. I didn't change anything in composer and it ran just fine up until last week. Now when I run composer install I get this at the end: Generating autoload...

How configure properly Grafana Tempo?

I tried to use Grafana Tempo for distributed tracing. I launch it from docker-compose: version: "3.9" services: # MY MICROSERVICES ... prometheus: image: prom/prometheus ports: ...