MSMQ messages bound for clustered MSMQ instance get stuck in outgoing queues

We have clustered MSMQ for a set of NServiceBus services, and everything runs great until it doesn't. Outgoing queues on one server start filling up, and pretty soon the whole system is...

Looking for clustering message framework for Python

I'm looking for a messaging framework to build up a cluster in Python (something similar to Apache Tribes). Are there any such frameworks in Python?

MATLAB Parallel Computing Toolbox - Parallelization vs GPU?

I'm working with someone who has some MATLAB code that they want to be sped up. They are currently trying to convert all of this code into CUDA to get it to run on a CPU. I think it would be...

jsf application in tomcat cluster with session replication

We have a jsf2 application in a tomcat clustering environment with session replication via SimpleTcp. When the balancer (mod_jk) changes the node we have an typical viewExpiredException. It seems...

Armadillo: efficient matrix allocation on the heap

I'm using Armadillo to manipulate large matrices in C++ read from a CSV-file. mat X; X.load("myfile.csv",csv_ascii); colvec x1 = X(span::all,0); colvec x2 = X(span::all,1); //etc. So x1,...,xk...

In node.js, how to declare a shared variable that can be initialized by master process and accessed by worker processes?

I want the following During startup, the master process loads a large table from file and saves it into a shared variable. The table has 9 columns and 12 million rows, 432MB in size. The worker...

why password less ssh not working?

I connected 3 data nodes(in all these data nodes pass-wordless is working fine) in my cluster which are working fine but when i try to connect another data node pass-wordless ssh not working in...

Not able to Start/Stop Spark Worker from Remote Machine

I have two machines A and B. I am trying to run Spark Master on machine A and Spark Worker on machine B. I have set machine B's host name in conf/slaves in my Spark directory. When I am executing...

Quickly count number of zero-valued bytes in an array

What's a speedy method to count the number of zero-valued bytes in a large, contiguous array? (Or conversely, the number of non-zero bytes.) By large, I mean 216 bytes or larger. The array's...

Parallel vs Distributed computing----the dividing line

I am studying the differences b/w parallel and distributed systems. I have been told that the division is blurring. Also, clusters can be viewed both as parallel and distributed systems (depending...

Remove markers from markerClusterer

I am trying to create an interactive map with cluster that need to be displayed when user checks a box and removed when the box is unchecked again. So far everything is working well, the cluster...

SQL Server 2008 R2 Cluster - SQL Server instance Fails after moving it to another node

I have 2 nodes in a SQL Server 2008 R2 Cluster that I inherited. Looking at the 'Failover Cluster Manager', under 'Services and applications', I see 13 SQL Server instances. It, and all of its...

Large fixed effects binomial regression in R

I need to run a logistic regression on a relatively large data frame with 480.000 entries with 3 fixed effect variables. Fixed effect var A has 3233 levels, var B has 2326 levels, var C has 811...

How to find nodes' names on linux cluster

I am using a linux cluster with 8 processors, though I have no way of contacting to it's administrator or anyone more familiar with using it. I am trying to run an MPI program on all nodes, but I...

Are there issues with running user pods on a Kubernetes master node?

Many of the run-throughs for deploying Kubernetes master nodes suggest you use --register-schedulable=false to prevent user pods being scheduled to the master node (e.g....

wso2 - High availability with Postgres as database

In the documentation regarding Cluster/High availability of WSO2's databases, the example is using MySQL. Is there any information or anyone using Postgres? How is High Availability enforced?...

Matplotlib cannot find basic fonts

I am using matplotlib version 2.0.0 on Python 3 in a miniconda virtual environment. I am working on a unix scientific computing cluster where I don't have root privileges. I am generally executing...

Adding labels to Cluster

I'm new to R and am attempting to cluster some data based on industry. I have learned that K-means cannot handle factors and categorical data. I have removed the factor called 'Industry' -- 67...

Thingsboard cluster setup

Building a Thingsboard cluster I need help setting up a Thingsboard cluster, the documentation online is very limited. The cluster will contain 2 Zookeeper nodes and 4 Thingsboard nodes with...

Slurm Array Job: output file on same node possible?

I have a computing cluster with four nodes A, B, C and D and Slurm Version 17.11.7. I am struggling with Slurm array jobs. I have the following bash script: #!/bin/bash -l #SBATCH --job-name...

How can I copy files between pods or between nodes in the kubernetes cluster?

Is this possible inside the kubernetes cluster? All examples I've found are copying from a local disk to a pod or vice versa, or is the only option to copy from node to node, for example over SSH,...

How to explode quantiles in hive

I am trying to get quantiles of a field and I want to explode them so that each value is a separate row rather than all of them forming a single array. First, I calculate 20 quantiles as...

Trying to create eks cluster using eksctl with ssh-access

While creating eks cluster using EKSCTL it is throwing error like error decoding SSH public key Permission of pem file is 400 Command i am executing eksctl create cluster --name=thirdekscluster...

pca and cluster analysis, very slow computing

My data has 30,000 rows and 140 columns and I am trying to cluster the data. I am doing a pca and then using about 12 pc to use in the cluster analysis. I took a random sample of 3000 observations...

Seeing an error that says: 'numpy.ndarray' object has no attribute 'map'

I am selecting a subset of data from a larger dataframe. dataset = df.select('RatingScore', 'CategoryScore', 'CouponBin', 'TTM', 'Price', ...

The init script works fine in databricks notebook but fails when attached to cluster

I want to attach the init script (which has all library dependencies) with an interactive cluster in databricks. The init script look like the below attachment and works fine in databricks...

trying to set up multi-locale chapel on a Raspberry Pi cluster

I a wondering if anyone could provide me with guidance on how to set up multi-locale on a cluster of Raspberry Pi -- a procedure or walk through or even just hints would be welcome. Chapel...

Accessing rexray/ebs volume from ECS host

I've managed to follow https://aws.amazon.com/blogs/compute/amazon-ecs-and-docker-volume-drivers-amazon-ebs/ and run my Container-based service on ECS using rex-ray Docker volume plugin. I can...

Multiple jobs from a single action (Read, Transform, Write)

Currently using PySpark on Databricks Interactive Cluster (with Databricks-connect to submit jobs) and Snowflake as Input/Output data. My Spark application is supposed to read data from Snowflake,...

Azure Auto ML JobConfigurationMaxSizeExceeded error when using a cluster

I am running into the following error when I try to run Automated ML through the studio on a GPU compute cluster: "Error: AzureMLCompute job failed. JobConfigurationMaxSizeExceeded: The specified...