Questions tagged [cluster]
A cluster consists of a set of connected computers that work together so that they can be viewed as a single system.
169
questions
0
votes
0answers
16 views
Secure a folder in a cluster
I have a folder in a cluster that I want to secure by allowing access to me only (read, write and execute). I am new in using clusters, what are the command lines I can use?
I have used umask u=rwx,g=,...
0
votes
0answers
36 views
Create 3D Clustered Column Chart
Is it possible to create a 'real' 3D clustered column chart in Excel?
I want to create what excel calls the '3-D Column', but I want each column to be a cluster of three columns instead of just one ...
0
votes
0answers
10 views
Docker Swarm service not deployed to worker nodes
I'm doing some fiddling on Docker Swarm to create a load balance for a Minecraft server.
I created a service that uses a mount type bind for the data, but when i create the service it is only ...
0
votes
0answers
36 views
Redhat 7 Pacemaker: wait_for_all: 0 doesn't start the resources
I deployed test cluster based on Redhat 7.6. Its a two node cluster. In corosync.conf
quorum {
provider: corosync_votequorum
two_node: 1
wait_for_all: 0
}
Now when i see the votes count ...
0
votes
0answers
21 views
Clock performance reduction in CPU
I am building a project requiring a lot of CPU power. I am currently having an AMD Ryzen Threadripper 1920X with 12 cores, 24 threads, each core running at 3.5 GHz. I am thinking about building a ...
0
votes
0answers
50 views
Running a single vm on hypervisor or kvm over a distributed clusture
I know somewhat about Beowulf cluster and linux virtual server. But I want to know if there exist a way to run an os on two or more nodes in cluster-unware mode. I mean the os will just seet the total ...
0
votes
0answers
547 views
Grid Engine unable to send message to qmaster using port 6444
I try to set up Grid Engine in the Docker VM on our work's server. I tried to follow this link from Kaldi documentation as well as this question. So my current setup looks like follows:
/etc/hosts/:
...
-2
votes
1answer
28 views
Can I connect 2 laptops one asus another acer together so they can share their ram
So the issue is I want to run a R code estimating R0 values for a city to find this I run bootstrap simulation of 11000, for the city the code stops as I don't have the required memory in a single ...
0
votes
1answer
361 views
Percentage Overlap of 95% confidence ellipses in a PCA plot
I've generated some plots with the below code:
#Remove group label from the dataframe
data_just_feats <- data[ , -which(names(data) %in% c("Group"))]
# Pca Plot
plot_1 <- autoplot(...
0
votes
0answers
18 views
How can I install tree on CentOS cluster?
How can I install tree program on a CentOS cluster where I do not have sudo privileges?
2
votes
0answers
502 views
oVirt hosted engine install error: Failed to verify Power Management configuration
I am new to ovirt and I am trying to install it on minimal-install CentOS 7.
I have been able to iron out all the wrinkles to create the host-engine, except for this error:
[ ERROR ] fatal: [...
0
votes
0answers
31 views
Let's encrypt, multiple webserver, one certificate
Im searching for a long time now.
What is the best way to share a let's encrypt certificate across multiple webserver ?
As example for a HA Cluster.
One way i tought about was, to create a "dummy"...
0
votes
0answers
29 views
How can I reinstall a Ubuntu with a configuration from a specific point in time?
I am setting up a database cluster on Ubuntu using XtraDB. When I do this I can happily run apt update && apt upgrade -y since this is the primordial server configuration.
Now, imagine that I ...
0
votes
0answers
42 views
I want to run software on a GPU in a cluster. Does the software have to be on my machine or on the cluster?
My laptop runs Linux. If I need to run any (deep learning) code on a GPU, I do so on a university cluster that I have access to (which also runs Linux).
I want to use a piece of commercially ...
1
vote
0answers
32 views
difference bwtween redis force failover and automatic failover caused by a master down
I want to use go-redis NewFailoverClinet as a client to set data into my database(redis-3.2.6) in a loop.
Result shows using command sentinel failover <MasterName> to trigger failover could ...
1
vote
1answer
49 views
Does a kubernetes master node contribute?
Does the master node contribute processing power to the cluster? Can it? I am interested in making a small cluster from old computers at home and I want to know where I should put the most powerful ...
0
votes
1answer
165 views
Windows Server 2016 - how do I migrate non-clustered Hyper-V VMs to a new cluster?
I just created a cluster with a single node to which I need to move all of our VMs so I can rebuild the other server and add it to the cluster. I've set up shared storage and configured hyperv on the ...
2
votes
1answer
23 views
bin file unavailable in Apache Drill
I installed Drill according to Drill Documentation. I have java installed. These are the steps I followed
wget http://apache.mirrors.hoobly.com/drill/drill-1.16.0/apache-drill-1.16.0-src.tar.gz
Then ...
0
votes
0answers
75 views
Python script fails when submitted to PBS
I'm trying to submit a simple python script to PBS using the command:
qsub -l procs=1 -q copperhead test.py, but the command fails with the error file (i.e., test.py.e--) saying:
/var/spool/torque/...
0
votes
1answer
49 views
How to use iscsi to share disk which is CSV file system
I want to share folder between some windows server, but I can not use smb(cfs).
I want to use iscsi to share disk, but I donot not how to use CSV(cluster share volume) to as they file syetem to avoid ...
1
vote
0answers
26 views
Db Mirror Issue
We are having a Weird issue with the DB Mirroring and to post the the issue I will have to explain our Architecture first.
We have a TWO Nodes [NODE 1 and NODE 2] cluster with Two FCIs Installed on ...
0
votes
1answer
52 views
Why does every interface in a cluster of network devices needs its own IP address?
When I have a cluster of i.e. firewalls handling multiple networks, why do they all need their own IP address additionally to the virtual cluster IP address? Isn't this a waste of addresses?
EDIT:
I ...
1
vote
0answers
17 views
Create a High Avaiebily cluster Centos in NON-Geograpical regions
I have been looking to create an Extreme High available cluster in Centos 7.6. They have to be at least
2 in same data center
3 or more different Non- geographical locations
Ability to expand cluster
...
1
vote
0answers
274 views
Pacemaker/Corosync Cluster Monitoring Action keeps failling (Wildfly)
I have a 2-node cluster without STONITH based on the following software:
Ubuntu 18.04.1 LTS
Pacemaker 1.1.18
Corosync Cluster Engine, version '2.4.3'
It is not the first cluster I build but the first ...
1
vote
1answer
2k views
How to cancel a job that is on completing (CG) state?
I normally submitted some jobs using sbatch and canceled some of them after using scancel. However, they are in state CG and I cannot remove the jobs from my list.
There is any way to get ride off ...
1
vote
2answers
4k views
ImportError: /lib64/libstdc++.so.6: version `CXXABI_1.3.8' not found
I'm trying to run a deep learning model on a university cluster. When I write the command to run the model, I receive this error.
15CS10019@cpusrv-gpu-112:~/Tushar/Rod-keras_yolo2-master$ python3 ...
1
vote
0answers
19 views
Failed Stackdriver email notification for newly created cluster
I want to create monitoring and altering notification whenever someone creates a new k8s cluster.
Method:
Find methodName: google.container.v1beta1.ClusterManager.CreateCluster
Create Log metrics
...
1
vote
1answer
366 views
Galera cluster is still accepting writes on a single node when 2 of 3 nodes are down
I am running a 3 clusters galera database, and during redundancy tests, I saw that if I shutdown properly 2 of 3 nodes, the last one still accepts writes, even being the only only one up.
I am not ...
0
votes
1answer
260 views
Removing cluster node from always on cluster
I have an alwaysOn configuration for SqlServer 2012 that is installed in two node windows cluster.
We had a disk failure on the second node, and there is no way to recover it, so I should run a new ...
4
votes
0answers
71 views
Why is nodes=n:ppn=m request not being properly honored by torque/moab?
On an inherited cluster that runs torque/moab scheduler, I find that the nodes:ppn requests are not properly honored. The nodes are allocated as per the value of ppn regardless of the value of node. ...
0
votes
1answer
388 views
Openshift (OKD) 3.11 - Resuming cluster installation
I'm installing OKD 3.11 using the ansible playbooks. Running the playbook deploy_cluster.yml fails every time because the script /etc/NetworkManager/dispatcher.d/99-origin-dns.sh messes up my /etc/...
0
votes
1answer
62 views
Is it essential to use clusterwares for active-active cluster using SAN?
I want to use SAN storage as shared disk for two active nodes running on Linux, and I want to use it as raw device (without file system).
At first I thought it would have no problem if the disk is ...
1
vote
1answer
770 views
YARN 3 and Spark: allocate a GPU
I can't find the working Spark option to require executors with a GPU.
I'm trying to setup a HADOOP cluster in order to run Machine Learning algorithms on available GPUs via Spark.
So far I'm trying ...
1
vote
0answers
95 views
Over 100% objects are degraded, how this is possible?
Situation
Running a really small ceph cluster:
with three nodes (each containing mon, osd and mds)
an admin VM (containing also a mgr-service)
a pool replicating three times
Just to play around ...
-2
votes
1answer
3k views
Can I combine the computing power of two laptops for everyday use? [closed]
I have two laptops by different makers, both running Windows 10. Neither of them is comfortable enough for MS Office use or normal Web browsing. One has a better display, a quicker but smaller SSD, ...
0
votes
1answer
39 views
No output and error file after running job in TORQUE
I installed mpich-3.2.1, torque-5.1.0 and maui-3.3.1 on Debian 9.
I have one master and one node.
I use NFS file system for sharing, and ssh passwordless.
When I run a job with a user that this user ...
0
votes
2answers
746 views
Terminating a SLURM zombie job
I have encountered the following problem during a first hard shutdown of the department cluster
I am in charge of.
The system is running SLURM 17.11 and using MariaDB/SQL to store accounting data.
To ...
0
votes
0answers
83 views
pipenv module install fails with lmod modules enabled
Recently I've been experimenting with cluster computing/administration. I've got a small RasPi cluster with shared storage. On the NFS storage, Python 3.6 is installed to a folder. I'm using LMOD to ...
1
vote
0answers
46 views
PostgreSQL Native Replication | Master - Master
I am configuring a high availability environment with Debian 9.4 machine, in which I have a Heartbeat working and need to include native PostgreSQL 9.6 replication, but by default this method of ...
4
votes
0answers
440 views
Configuring Heartbeat to run shell script
I set up a high availability system with Heartbeat, I wish that when there was a drop in the main cluster and the secondary cluster was activated, Heartbeat start in it and execute a shell script.
...
3
votes
1answer
583 views
Hyper V fail over cluster
I have two Hyper V host. One with Intel adapter and other with Broadcom. Is this configuration supported.?
While running validation test I am getting error message.
Node 'HOST1.poc.lab' is missing a ...
0
votes
0answers
121 views
Run the CPUMiner-multi mining package with the Mosix clustering package
When I run the CPUMiner-multi package for 'xmr' digital coin mining in Ubuntu Linux under the Mosix-4.4.4 clustering package with two nodes
$ ./mosrun -e ./minerd -a cryptonight -p stratum+tcp://...
0
votes
1answer
25 views
Can I make two node Hadoop 2 Cluster on two different VirtualBoxes on two different lap-tops on the same network?
So I have two lap-tops with VirtualBox both running Ubuntu 18.4 and I am trying to set up Hadoop 2 Cluster. One VB to be the master and one VB to be the slave is it possible and how? Because all the ...
0
votes
1answer
1k views
Lots of disk errors but no hardware alert. Is this hardware related or software?
Summary: Random disks on one datanode of an Hadoop cluster keeps getting read-only. Jobs fails but there is no hardware alert on server.
Hello,
I am administring an Hadoop cluster which runs on ...
0
votes
1answer
115 views
Backup MSMQ instance in a cluster
I found the right command that allows to backup a MSMQ instance in a server : mqbkup.
It is working for a local instance but when the MSMQ is in a cluster, I'm not able to make this command works. ...
1
vote
0answers
14 views
Block outgoing traffic of cluster user
Recently I received an account in a computer cluster. It doesn't have a firewall so any kind communication can happen. However, I would like to set up a firewall for any outgoing traffic except for ...
3
votes
3answers
878 views
One operating system across two computers?
Is it possible to cluster two computers together and run one operating system across them? I have heard of Beowulf & such, but can I cluster things like PCI devices (graphics acceleration, ...
3
votes
0answers
157 views
Zookeeper / Exhibitor cluster nodes keep restarting
I have successfully deployed 3 Zookeeper / Exhibitor nodes in Docker containers and they form a cluster. I am starting them via
java \
-jar /opt/exhibitor/exhibitor.jar \
--port ${EXHIBITOR_PORT} --...
0
votes
0answers
92 views
Installing SSL on a Network Cluster
I am trying to install an SSL certificate on a distributed Windows cluster consisting of a domain controller and several web servers. Normally, on a set up where there's just a webserver, this has ...
0
votes
1answer
32 views
troubleshoot pcsd ping resource on RHEL
we have configured ping resource monitor using REDHAT pcsd daemon.
In general - we get to error in /var/log/messages pointing to ping issue for specific entity (NAS server IP in this case). However ...
