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13%
Monitor your nodes with collectl
30.11.2025
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Archive
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2012
»
Issue 09: Windo...
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: 1331404720 TZ: -0500
09
# SubSys: bcdfijmnstYZCD Options: cz Interval: 10:60 NumCPUs: 4 NumBud: 3 Flags: ix 10 # Filters: NfsFilt: EnvFilt: 11 # HZ: 100 Arch: x86_64-linux-thread-multi PageSize: 4096
12
# Cpu
13%
I/O benchmarks with Fio
30.11.2025
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Archive
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2011
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Issue 5: Pen Te...
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the Buffer 01 [global] 02 ioengine=libaio 03 direct=1 04 filename=testfile 05 size=2g 06 bs=4m 07 08 refill_buffers=1
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10 [write] 11 rw=write
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write_bw_log 13 14 [read] 15 stonewall 16 rw=read 17 write
13%
Configuration management with Chef
30.11.2025
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2010
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Issue 1: System...
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" 05 06 signing_ca_path "/var/chef/ca" 07 couchdb_database 'chef' 08
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cookbook_path [ "/var/chef/cookbooks", "/var/chef/site-cookbooks" ] 10 11 file_cache_path "/var/chef/cache"
12
node
13%
Galera Cluster for MySQL
30.11.2025
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2012
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Issue 10: Traff...
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MySQL-shared-compat-5.5.
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-2.el6.x86_64.rpm rpm -i MySQL-client-5.5.
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-1.el6.x86_64.rpm With CentOS 6, the following additional package is necessary: yum install openssl098e.x86_64 The easiest way
13%
Julia: A new language for technical computing
30.11.2025
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2012
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Issue 10: Traff...
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.33 164.69 0.75 rand_mat_stat 3.37 39.34 11.64 54.54
22
.07 8.
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rand_mat_mul 1.00 1.18 0.70 1.65 8
13%
An IP-based load balancing solution
30.11.2025
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CloudAge
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backup_active = 1 05 backup = 192.168.1.232 06 heartbeat = 1 07 heartbeat_port = 539 08 keepalive = 6
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deadtime = 18 10 network = direct 11 debug_level = NONE
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monitor_links = 1 13 syncdaemon = 1 14
13%
Free backup tool for data centers
30.11.2025
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Archive
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2011
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Issue 5: Pen Te...
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Password = "YdhKKoy2Huq1CVHwIR" 05 Pid Directory = "/var/run" 06 Query File = "/usr/lib/bacula/query.sql" 07 Working Directory = "/var/lib/bacula" 08 }
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10 Fileset { 11 Name = "Full Set"
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13%
A standard cloud computing API
30.11.2025
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2011
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Issue 6: Perfor...
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= DeltaCloud.new(USER, PASSWORD, URL) 05 summary = Hash.new(0) 06 state = client.instances.inject({}) do |state, inst| 07 state[inst.id] = inst.state 08 summary[inst.state] += 1
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state 10 end 11
13%
The RADOS object store and Ceph filesystem
30.11.2025
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2012
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Issue 09: Windo...
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/ceph/$name.keyring 04 [mon] 05 mon data = /srv/mon.$id 06 [mds] 07 [osd] 08 osd data = /srv/osd.$id
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osd journal = /srv/osd.$id.journal 10 osd journal size = 1000 11 [mon.a]
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host = alice 13 mon
13%
Introduction to behavior-driven monitoring
30.11.2025
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Archive
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2011
»
Issue 3: Are yo...
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: Logging in 06 Given I am on http://www.xing.com/ 07 When I fill in "username-field" with "username" 08 And I fill in "password-field" with "password"
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And I press "login-button" 10 Then I
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