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a mouse. Fortunately, I have explored terminal user interface (TUI) tools often in this column. Tools like btop [12], glances [13], speedometer [14], nethogs [15], and even plain old top [16] are ready
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30.11.2025
) (out= 131)(deflated 17%)
adding: WEB-INF/(in = 0) (out= 0)(stored 0%)
adding: WEB-INF/web.xml(in = 63) (out= 48)(deflated 23%)
# cp helloworld.war ../../jboss-5.1.0.GA/server/all/deploy/
20:15
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: 1386145 0 IO-APIC-edge pata_sch
07 15: 0 0 IO-APIC-edge pata_sch
08 16: 9 0 IO-APIC-fasteoi pciehp
09 17: 3398067 0 IO
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.createRelationshipTo(cologne, RelTypes.reachable);
14 Relationship a1_k_do = cologne.createRelationshipTo(dortmund, RelTypes.reachable);
15 // Save data and quit:
16 tx.success();
17 tx.finish();
18 database
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transformation, extracting only the values of the required tags (Figure 15). In this way, you receive the desired information as needed and can see directly how many and where optimizations are possible
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of the system names (to run hostname
). In this example, the system names are compute-01
, compute-02
, compute-03
, and compute-04
. You can use all sorts of range combinations with pdsh
, such as compute-[01-03,05-08,10,13,14,15
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. We're still left running regular expressions on config files on the server's disk. How old fashioned will this sound in 15 years?
Duck, Duck, NoSQL
There are two ways of offering a low-level cloud
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30.11.2025
were run on a virtual system (using ESX as the hypervisor) with fixed reservations for CPU and memory. To be more precise, I used a virtual CPU running at 1.5GHz and with 512MB of RAM in the virtual
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30.11.2025
="60"
14 op monitor start-delay="0" interval="1200"
15 meta resource-stickiness="0" failure-timeout="180"
16
17 location l_stonith_alice stonith_alice -inf: alice
18 location l_stonith_bob stonith
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30.11.2025
-Server is UP"
10
11 else:
12 print host, "LDAP-Server is DOWN - starting it up"
13 result = fc.Client(host).service.start("dirsrv")
14 if result[host] == 0:
15 print host, "LDAP-Server is now UP"
16
