A computer cluster consists of a set of loosely connected computers that work together so that in many respects they can be viewed as a single system. The components of a cluster are usually connected to each other through fast local area networks, each node running its own instance on an operating ...
2
votes
0answers
10 views
Pacemaker/corosync timeout before resource transfers
This seems like a simple question, but one I can't seem to find the answer for despite going over the pacemaker documentation multiple times.
I've got corosync set up with pacemaker to share a ...
1
vote
2answers
52 views
Distributed mysql synching
I'm running a server which is connected to an SQL host. I have an another server and I decided to run it as an SQL backup. So, I have 3 of them. Srv A is the SQL host, srv B is the backup.
I know ...
-3
votes
0answers
32 views
Clusterising F@H [closed]
Gday all,
With campus holidays on their way, I wanna use this period of inactivity to harness some hardware and play around with clustering.
There is a mathematics lab with some slightly dated, but ...
1
vote
0answers
9 views
Windows 2003 cluster: One node offline causes the cluster service on the other node to fail
I configured a 2 node cluster on 2 Windows 2003 machines with Exchange 2003
The resources:
Majority node set
Data volume
Cluster IP
Cluster network name
Exchange 2003 system attendant (and all ...
1
vote
3answers
48 views
Building right system for my needs
I will be providing "File-Hosting" service and I need something that works with me along the line and allow the project to expand.
At first I was thinking about one big server with RAID 5 as a ...
1
vote
0answers
11 views
Set total memory limit with Torque
I run a moderately sized cluster and I am having a queue problem. For example I have a node with 128GB of memory and a program that I set the amount of memory per core. So for example if I set memory ...
0
votes
2answers
29 views
wall command + broadcast message not appears on second cluster machine
I have two cluster solaris machine ( machine1 , machine2 ) I have connection between two machines ping and ssh work fine ( cluster is fine )
more /var/tmp/mesg
TEST
I execute the following ...
1
vote
0answers
12 views
xCAT fails to discover nodes and setup BMC
I'm installing xcat in a cluster 1350 of IBM using the oficial manual, but in the discovering of nodes (currently I'm testing with a simple node) I have several problems:
The IP asignated in the ...
0
votes
0answers
11 views
Utilising a Magento server cluster to drive hot reindexing
We've asked a similar question in the past, basically we have a very large Magento store with 500000 products which are currently reindexed once a day, during the night.
We'd like to speed this ...
1
vote
1answer
41 views
Hyper-V Manager/Server failover/redirections
I have currently one Hyper-V Server 2008 R2 server installed, it's successfully running 4 VM's, but memory/RAM is starting to become sparse. I actually have a 2nd machine available, so my great idea ...
-1
votes
1answer
64 views
How to route, using Linux, from nested private subnets to internet
In our departement we have a blade system with one master node and four slave nodes that are connected to the master node. The system uses its own subnet (192.168.1.x) and only the master node is ...
2
votes
1answer
50 views
Windows Server 2003 on Virtualbox: Disk becomes unavailible after adding it as a cluster resource
I created a test cluster in Windows 2003 running on Virtual Box. The virtual disk to be used as a cluster resource has been changed to type shereable using VBoxManage command line utility. On that ...
-5
votes
0answers
40 views
Best cloud solution for a playgroud [closed]
I would like to play a little bit with Weblogic and create clusters of it with some software load balancers in front (even hardware if possible)
Unfortunatelly I do not have the phisical servers to ...
1
vote
0answers
66 views
Cluster fails because of network loop
We have two hosts running 2008 R2 and Hyper-V. iSCSI SAN using a Equallogic 6k and ps4000 pooled together. They are connected to two Dell 6224 switches. I have one VLAN for the iSCSI and then another ...
1
vote
2answers
46 views
Cloning IP address and/or MAC address for server fail-over
I am currently providing some web applications to my customers (apache/php/mysql on Windows server). I'm looking to provide some sort of fail-over server in the case my server has a hardware failure. ...
0
votes
1answer
29 views
delete all files on all nodes on a RedHat cluster?
I am developing a program that runs on a cluster and writes a lot of short bits. First, it outputs to the node's scratch directory; when it is done, it rsyncs the files to a hard drive and then ...
0
votes
0answers
32 views
Re-Ask - why would adding a crossover private nic cause IP address resource fail? [closed]
Possible Duplicate:
why would adding a crossover private nic cause IP address resource fail?
2 node Win 2008 R2 quorum cluster
Configured 192.168.0.0/24 "public network"
Configured cluster ...
1
vote
1answer
25 views
Prevent users running processes on cluster head node
What ways are there to prevent users from starting long running, resource intensive processes on the headnode of a Rocks cluster?
I've tried:
asking politely
setting the nice level in limits.conf ...
3
votes
1answer
78 views
Shared Block Device File System (iSCSI)
I wanted some advice on a file system to use on across 5-10 servers that have a shared block device (iSCSI), GlusterFS and LusterFS seem to be it, but they dont say anything about shared block device ...
0
votes
2answers
43 views
Move clustered MSMQ storage location
We have a two-node active/passive Windows 2003 cluster running MSMQ among other things. Windows picked the Quorum drive to store the queue messages, but this drive has VERY limited disk space. How can ...
0
votes
0answers
17 views
NDB storage engine mysql Configuration for Maximum READS and WRITES to mysql
How can I find the Maximum limits for the number of READS and WRITES to mysql?
I have found the following using the "show global status" mysql command:
ndb_api_read_row_count to find the maximum ...
0
votes
0answers
73 views
Percona XtraDB Cluster with GlusterFS
We are deploying a GlusterFS cluster with 4 nodes, and we want to deploy the Percona XtraDB Cluster on top of it with 4 nodes, each node will have a mounted folder from the GlusterFS, each mount will ...
2
votes
2answers
94 views
why would adding a crossover private nic cause IP address resource fail?
2 node Win 2008 R2 quorum cluster
Configured 192.168.0.0/24 "public network"
Configured cluster MSDTC
Installed SQL 2008 R2 cluster instance
Manually failover groups - OK
Reboot server w/o failing ...
0
votes
1answer
35 views
What's the best management distro for xCat? [closed]
I want to deploy a iDataPlex cluster but using only free software with xCat. The xCat start guide uses Red Hat Enterprise Linux 5 in the management node.
What's the best free distro to install ...
1
vote
1answer
41 views
Manaul SQL cluster failover on 2008R2
I need to do a restart of the clustered SQL instance to fix a problem with tempDB and i am not sure of the easiest way to do this. We have just upgraded our servers to Windows 2008R2 running SQL ...
1
vote
1answer
39 views
Using ionice Over Cluster
Background:
I use a computing cluster at work (4 slave nodes and 1 head node) that uses the SGE job scheduler. Recently we've been running jobs that do some heavy IO and it has been slowing down ...
2
votes
2answers
59 views
Completely Remove an Exchange Cluster even though it's cluster info is long gone?
With the proviso that I realize I screwed the pooch on this, here's my situation.
We used to have an Exchange 2003 two-node cluster. Several years back we migrated to Google Apps. When we did that, ...
0
votes
2answers
21 views
Adding MySQL servers/ data nodes into database clustering without restarting mysql cluster
I currently have mysql clustering up and running. For high scalability is there a way to include either mysql node, data nodes, or management nodes without restarting the entire cluster. I wish to ...
0
votes
0answers
79 views
Member Status: Inquorate in RHEL 5.6
I've encountered a strange issue.
I had to change the time on my Linux RHEL cluster system. I've done it using the following command from the root user:
date +%T -s "10:13:13"
After doing this, ...
0
votes
1answer
44 views
Plesk CP with a linux cluster
I've managed to start a project where i should be implementing a linux cluster mainly for webhosting.
I need to run plesk on top of that cluster in order to provide cps to customers but there seems to ...
1
vote
1answer
97 views
Linux HA - Best Heartbeat hardware solution
Hi all I would ask anyone what is the best layer 2 medium for heartbeat in Linux and how it's best configured.
More precisely I've been thinking about a dedicated NIC for that purpose but then i ...
0
votes
1answer
288 views
How to setup STONITH in a 2-node active/passive linux HA pacemaker cluster?
I am trying to setup an active/passive (2 nodes) Linux-HA cluster with corosync and pacemaker to hold a PostgreSQL-Database up and running. It works via DRBD and a service-ip. If node1 fails, node2 ...
-2
votes
2answers
92 views
Server Cluster Design/Setup [closed]
OK So I am not sure if this is posted already but let me explain my goal and what I am trying to do. Really need some help on this as I am not really linux or server savvy yet. I know the basics with ...
0
votes
1answer
63 views
Clustered MSMQ can't send to queue in another forest
I have MSMQ running on a two-node Windows 2003 cluster. When I try to send transactional messages to a queue on a Windows 2008 server in another forest, the messages get stuck in the cluster's ...
0
votes
0answers
27 views
MySQL cluster data node replacement
I have a MySQL cluster with 2 data storage nodes running from last 2 years.
Just recently I have observed a hardware issue in one of the nodes (data storage). I may need to replace this node with new ...
1
vote
0answers
87 views
Ganeti and automatic failover
I'm building a simple 2-node cluster with Ganeti+DRBD... What is the recommended way to setup automatic failover?
I'm used to Heartbeat, but they say it should be avoided with my setup.
1
vote
2answers
169 views
How to setup cluster in ubuntu? [closed]
I need to setup Compute cluster on ubuntu.
if it is not possible,can anybody explain, set up cluster in redhat
0
votes
1answer
183 views
Best RAID setup for DRBD
I would like to setup a two nodes PROXMOX cluster with DRBD storage. The nodes will be connected by gigabit ethernet. What would be the best storage setup in terms of reliability, performance and ...
1
vote
3answers
157 views
Cloud Storage as a File Share Witness?
Does anyone know if there is a service out there that can be used as a file share witness for a Windows Server 2008 R2 Failover Cluster File share witness?
I have a two-node cluster but no good place ...
0
votes
0answers
70 views
Shared file via NFSv4: small file change on client1 appears only after minutes on client2?
If I modify a textfile on a NFSv4 mounted share on client1, why does the change sometimes need minutes to be seen on client2?
The change is very small (1 character in a textfile), and the file on ...
0
votes
1answer
224 views
How to run multiple Heartbeat/Corosync/Pacemaker clusters in the same network? (Quorum)
We intend to run several components to run a web site. Like a load balancer, a cache and a couple of web serserves. To avoid single-points-of-failure we intended to use Heartbeat/Corosync/Pacemaker ...
-2
votes
1answer
66 views
Boost libraries ! :(
I am in the process of running some tests on a cluster which has CENTOS 5 x86_64 kernel 2.6.18. I need to install a software there which needs boost>=1.42. I have looked around but cant seem to find ...
2
votes
3answers
538 views
Ganeti vs Proxmox
I'm system administrator in small software house. I'm going to virtualise our servers. The main reason for doing this is providing highest possible uptime, but probably it will also increase resources ...
0
votes
2answers
94 views
Calculating the power of a cluster vs a single workstation [closed]
For the same price we can get either
Worktsation which is 2 x 6 core Xeons 3.4GHz, 128GB RAM, 600GB SAS RAID 0
= 12 Cores, 128GB RAM
Or
Cluster 8 x (4 Core i7 3.4GHz, 16GB RAM, 250GB SATA, Intel ...
-1
votes
1answer
130 views
Configuring a Beowulf cluster with Mosix
Here's the situation: We're trying to build a Beowulf cluster using Mosix. At first, we're testing everything on VMWare, but we want to deploy it on actual hardware in the near future.
However, it ...
0
votes
0answers
91 views
Blazeds with Jboss Clustering ( Mod_JK with SSL )
We are running our flex application in jboss clustering environment with the help of Apache mod_jk(Apache Web server as front end with mod_ssl enabled). We are using the SecureAMFChannel as we deploy ...
1
vote
1answer
46 views
OpenMPI in SGE fails when not observed
I know the topic is weird but so is my problem. On our cluster we have SGE with OpenMPI compiled for tight integration. When I set it up it worked just fine in my tests and so far there have been no ...
0
votes
1answer
139 views
SQL Server 2005 SP3 Failover Cluster Node Replacement Service Pack
2-node SQL Server 2005 SP3 (9.0.4226) Failover Cluster running on Windows Server 2003 R2 x64 SP2. My passive node suffered a RAID failure on the OS partition. I evicted the failed node, rebuilt it, ...
0
votes
1answer
249 views
WebLogic cluster, determine node from JSESSIONID cookie
We are running a WebLogic 10.3.4 cluster with three managed servers (nodes). We do not use session stickyness, but session replication across the cluster and everything is working fine. When trying to ...
0
votes
1answer
88 views
Replacing teamed NIC's in SQL server DB 2-node cluster
I currently have a 2-node MSSQL cluster, each with 2 x Broadcom 5709C Dual 1Gbps NIC's with TOE and iSCSI offload, teamed together to provide connectivity to the network and the supporting SAN, ...
