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server
Langue: en
Version: 364334 (ubuntu - 25/10/10)
Section: 8 (Commandes administrateur)
BSD mandoc
RSerPool Server
NAME
server - RSerPool Server (PE) for multiple example servicesSYNOPSIS
server [-local=address:port,address,... ] [-asapannounce=address:port ] [-identifier=PE_identifier ] [-policy=policy_specification ] [-poolhandle=pool_handle ] [-quiet ] [-registrar=address:port ] [-rereginterval=milliseconds ] [-runtime=milliseconds ] [-uptime=seconds ] [-downtime=seconds ] [-logcolor=on|off ] [-logappend=filename ] [-logfile=filename ] [-loglevel=0-9 ] [-cspserver=address:port ] [-cspinterval=milliseconds ]server [-calcapp ] [-capcapacity=calculations_per_second ] [-capcleanshutdownprobability=probability ] [-capcookiemaxcalculations=calculations ] [-capcookiemaxtime=seconds ] [-capkeepalivetransmissioninterval=milliseconds ] [-capkeepalivetimeoutinterval=milliseconds ] [-capmaxjobs=max_jobs ] [-capobject=name ] [-capscalar=scalae_file ] [-capvector=vector_file ]
server [-chargen ] [-chargenmaxthreads=threads ]
server [-daytime ]
server [-discard ]
server [-echo ]
server [-fractal ] [-fgpcookiemaxpackets=messages ] [-fgpcookiemaxtime=milliseconds ] [-fgpfailureafter=messages ] [-fgpmaxthreads=threads ] [-fgptestmode ] [-fgptransmittimeout=milliseconds ]
server [-pingpong ] [-pppfailureafter=messages ] [-pppmaxthreads=threads ]
server [-scripting ] [-sskeeptempdirs ] [-ssmaxthreads=threads ] [-sstransmittimeout=milliseconds ] [-keepaliveinterval=milliseconds ] [-keepalivetimeout=milliseconds ]
DESCRIPTION
server is an example Reliable Server Pooling (RSerPool) pool element (PE) that provides multiple services. Upon startup, one service has to be selected by the command-line parameters. To start multiple services, run multiple instances. server provides the following services:- CalcApp
- Calculation application model for performance tests. See http://duepublico.uni-duisburg-essen.de/servlets/DerivateServlet/Derivate-16326/Dre2006-final.pdf for more information.
- CharGen
- Sending as much character data as possible.
- Daytime
- Sending back current time of day.
- Discard
- Discarding incoming data.
- Echo
- Echoing back incoming data.
- Fractal
- Fractal generator with cookie-based failover.
- PingPong
- Simple request-response example using cookies for failover.
- Scripting
- Remote execution of scripts with upload/download of input/output data. Could for example be used for distributing simulation runs. Take care of security when using this service!
ARGUMENTS
The following options are available:- Common Pool Element Parameters:
-
- -local=address:port,address,...
- Sets the local endpoint address(es).
- -asapannounce=address:port|auto|off
- Sets the multicast address and port the ASAP instance listens for ASAP Server Announces on.
- -identifier=PE_identifier
- Sets a fixed PE identifier. Handle with care!
- -policy=policy_specification
- Sets the pool policy and its parameters (default is Round Robin). Supported policy specifications:
- RoundRobin (default policy)
- WeightedRoundRobin:weight
- Random
- WeightedRandom:weight
- LeastUsed
- LeastUsedDegradation:increment
- PriorityLeastUsed:increment
- LeastUsedDPF:dpf_value
- Priority:priority
- ...
- -poolhandle=pool_handle
- Sets the PH to a non-default value; otherwise, the default setting is the service-specific default.
- -quiet
- Do not print startup and shutdown messages.
- -rereginterval=milliseconds
- Sets the PE's re-registration interval.
- -runtime=seconds
- After the configured number of seconds, the service is shut down. Floating-point values (e.g. 30.125) are possible.
- -uptime=seconds
- After negative exponential randomized uptime, the PE service goes down for a configured downtime. After that, it comes up again. This option can be used for testing the failure handling procedures.
- -downtime=seconds
- After negative exponential randomized downtime, the PE service comes up again. This option can be used for testing the failure handling procedures.
- Logging Parameters:
-
- -logappend=filename
- Write logging output to a file (default is stdout); output will be appended to given file.
- -logcolor=on|off
- Turns ANSI colorization of the logging output on or off.
- -logfile=filename
- Write logging output to a file (default is stdout); given file will be overwritten.
- -loglevel=0-9
- Sets the logging verbosity from 0 (none) to 9 (very verbose). It is recommended to use at least a value of 2 to see possibly important error messages and warnings.
- ASAP Protocol Parameters:
-
- -registrar=address:port
- Adds a static PR entry into the Registrar Table. It is possible to add multiple entries.
- -registrarannouncetimeout=milliseconds
- Sets the timeout for ASAP announces via multicast.
- -registrarconnecttimeout=milliseconds
- Sets the timeout for ASAP connection establishment.
- -registrarconnectmaxtrials=trials
- Sets the maximum number of ASAP connection establishment trials.
- -registrarrequesttimeout=milliseconds
- Sets the timeout for ASAP requests.
- -registrarresponsetimeout=milliseconds
- Sets the timeout for waiting to receive ASAP responses.
- -registrarrequestmaxtrials=trials
- Sets the maximum number of ASAP request trials.
- Component Status Protocol (CSP) Parameters:
-
- -cspinterval=milliseconds
- Sets the interval for the CSP status updates in milliseconds. By default, the content of the environment variable CSP_INTERVAL is used. If not defined, no CSP status reports will be sent.
- -cspserver=address:port
- Sets the address of a CSP monitor server. By default, the content of the environment variable CSP_SERVER is used. If not defined, no CSP status reports will be sent.
- Service Parameters:
-
- -calcapp
- Starts the CalcApp service.
- -capcapacity=calculations_per_second
- Sets the service capacity in calculations per second.
- -capcleanshutdownprobability=probability
- Sets the probability for sending state cookies to all sessions before shutting down.
- -capcookiemaxcalculations=calculations
- Sets the cookie interval in calculations.
- -capcookiemaxtime=seconds
- Sets the cookie interval in seconds.
- -capkeepalivetransmissioninterval=milliseconds
- Sets the keep-alive transmission interval in milliseconds.
- -capkeepalivetimeoutinterval=milliseconds
- Sets the keep-alive timeout in milliseconds.
- -capmaxjobs=max_jobs
- Sets the an upper limit for the number of simultaneous CalcApp requests.
- -capobject=name
- Sets the object name for scalar hierarchy.
- -capscalar=scalar_file
- Sets the name of vector scalar file.
- -capvector=vector_file
- Sets the name of vector output file.
- -chargen
- Starts the CharGen service.
- -chargenmaxthreads=threads
- Sets an upper limit for the number of simultaneous CharGen sessions.
- -daytime
- Starts the Daytime service.
- -discard
- Starts the Discard service.
- -echo
- Starts the Echo service.
- -fractal
- Starts the Fractal Generator service.
- -fgpcookiemaxpackets=messages
- Send cookie after given number of Data messages
- -fgpcookiemaxtime=milliseconds
- Send cookie after given number of milliseconds.
- -fgpfailureafter=messages
- After the set number of data packets, the server will terminate the connection in order to test failovers.
- -fgpmaxthreads=threads
- Sets an upper limit for the number of simultaneous Fractal Generator sessions.
- -fgptestmode
- Generate simple test pattern instead of calculating a fractal graphics (useful to conserve CPU power when debugging).
- -fgptransmittimeout=milliseconds
- Sets transmit timeout in milliseconds.
- -pingpong
- Starts the PingPong service.
- -pppfailureafter=messages
- After the set number of messages, the server will terminate the connection in order to test failovers.
- -pppmaxthreads=threads
- Sets an upper limit for the number of simultaneous PingPong sessions.
- -scripting
- Starts the Scripting service.
- -sskeeptempdirs
- Turns on keeping all temporary files for debugging. Handle with care!
- -ssmaxthreads=threads
- Sets an upper limit for the number of simultaneous sessions.
- -sstransmittimeout=milliseconds
- Sets the transmission timeout in milliseconds.
- -sskeepaliveinterval=milliseconds
- Sets the keep-alive interval in milliseconds.
- -sskeepalivetimeout=milliseconds
- Sets the keep-alive timeout in milliseconds.
ENVIRONMENT
server uses the environment variables CSP_SERVER and CSP_INTERVAL to define a CSP server to send reports to in the specified interval.DIAGNOSTICS
If loglevel>0, log messages will be printed to stdout or into a specified log file.SEE ALSO
For a detailed introduction to RSerPool, see:http://duepublico.uni-duisburg-essen.de/servlets/DerivateServlet/Derivate-16326/Dre2006-final.pdf
Thomas Dreibholz's RSerPool Page:
http://tdrwww.iem.uni-due.de/dreibholz/rserpool/
AUTHORS
Dr. Thomas Dreibholzhttp://tdrwww.iem.uni-due.de/dreibholz/rserpool/
mailto://dreibh@iem.uni-due.de
Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre