Difference between revisions of "Data services"

Revision as of 18:03, 25 May 2012

The services currently provided by LSDF are:

The "Hadoop cluster" consists of 58 nodes with 464 physical cores in total, each node having:

2 sockets Intel Xeon CPU E5520 @ 2.27GHz, 4 cores each, hyperthreading active (16 cores total)
36 GB of RAM
2 TB of disk
1 GE network connection
OS Scientific Linux 5.5
- Linux kernel 2.6.18

plus 2 headnodes, each having:

2 sockets Intel Xeon CPU E5520 @ 2.27GHz, 4 cores each, hyperthreading active (16 cores total)
96 GB of RAM
10 GE network connection
OS Scientific Linux 5.5
- Linux kernel 2.6.18

All nodes are however SHARED between the different Hadoop tasks and the OpenNebula virtual machines.

@@ Line 5: / Line 5: @@
 * Hadoop data intensive computing framework
-The "Hadoop cluster" consists of
+The "Hadoop cluster" consists of '''58 nodes''' with '''464 physical cores''' in total, each node having:
+* 2 sockets Intel Xeon CPU E5520 @ 2.27GHz, 4 cores each, hyperthreading active (16 cores total)
-* 58 nodes with 464 physical cores
-** 2 sockets Intel Xeon CPU E5520 @ 2.27GHz, 4 cores each, hyperthreading active
 * 36 GB of RAM
-* 2 TB of disk each
+* 2 TB of disk
 * 1 GE network connection
 * OS Scientific Linux 5.5
 ** Linux kernel 2.6.18
+plus '''2 headnodes''', each having:
-plus
+* 2 sockets Intel Xeon CPU E5520 @ 2.27GHz, 4 cores each, hyperthreading active (16 cores total)
-* 2 headnodes
-** 2 sockets Intel Xeon CPU E5520 @ 2.27GHz, 4 cores each, hyperthreading active
 * 96 GB of RAM
 * 10 GE network connection