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== PhoneHome Parameters ==
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{{{hdr|==}}} PhoneHome Parameters {{{hdr|==}}}
Phoning Home means a program will check and report to the user if a new version is available.  The program will also send a completion status back to the University of Michigan.  This enables us to gather some usage statistics.
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See [[PhoneHome]] for more information on how PhoneHome works and what it does.
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{{#if: {{{bullet|}}} |*<code>--noPhoneHome</code> disables PhoneHome.
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|{{{hdr|==}}}= Turn off PhoneHome (<code>--noPhoneHome</code>) {{{hdr|==}}}=
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Use the <code>--noPhoneHome</code> option to completely disable PhoneHome.}}  PhoneHome is enabled by default based on the [[#Adjust the Frequency of PhoneHome (--phoneHomeThinning)|thinning parameter]].
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PhoneHome is enabled by default, but will not happen on every run.  Each run generates a random number (seeded by time).  PhoneHome will only occur if the random number modulo 100 is less than the [[#Adjust the Frequency of PhoneHome (--phoneHomeThinning)|thinning parameter]].
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{{#if: {{{bullet|}}} |*<code>--phoneHomeThinning</code> (0-100) adjusts the frequency of PhoneHome.
 
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|{{{hdr|==}}}= Adjust the Frequency of PhoneHome (<code>--phoneHomeThinning</code>) {{{hdr|==}}}=
PhoneHome can be completely disabled by using the [[#Turn off PhoneHome (--noPhoneHome)|<code>--noPhoneHome</code>]] option.
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Use <code>--phoneHomeThinning</code> to modify the percentage of the time that PhoneHome will run (0-100).}}
 
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{{#if: {{{bullet|}}} |*|}}*By default, <code>--phoneHomeThinning</code> is set to {{{thin|50}}}, running {{{thin|50}}}% of the time.   
Why do we want usage statistics?
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{{#if: {{{bullet|}}} |*|}}*PhoneHome will only occur if the run's random number modulo 100 is less than the --phoneHomeThinning value.
* To show that our tools are being used (and justify our time spent)
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{{#if: {{{bullet|}}} |*|}}*N/A if <code>--noPhoneHome</code> is set.
* To see which tools/functions are most heavily utilized so we can appropriately focus our efforts
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* To get feedback if users are often encountering errors
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What gets sent to the University of Michigan?
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Your program will hit one of our URLs providing the following information:
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* program name - the name of the executable you are running (pathname is NOT included)
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* argument names - the argument names you specified, but NOT any user specified value
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* version number - the version of the tool you are running (hard coded at compile time)
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* random number - a random number for this run (seeded by time), helps link the version check PhoneHome with the completion status PhoneHome
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* [[#Adjust the Frequency of PhoneHome (--phoneHomeThinning)|thinning parameter]] - percentage of time the the tool is configured to report back (0-100), default is 50
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* return status - 0 (success), Exception, or Error (it will not include a description of the exception/error)
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For example if you run:
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/home/mktrost/bamUtil_1.0.10/bin/bam convert --in myInFile.sam --out myOutFile.bam
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It will pass something like these parameters back to us:
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pgm=bam:convert&vsn=1.0.10&uniqNum=1448588715&thinning=50
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and
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pgm=bam:convert&vsn=1.0.10&uniqNum=1448588715&thinning=50&status=Exception
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=== Turn off PhoneHome (<code>--noPhoneHome</code>)  ===
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Use the <code>--noPhoneHome</code> option to completely disable PhoneHome.  PhoneHome is enabled by default based on the [[#Adjust the Frequency of PhoneHome (--phoneHomeThinning)|thinning parameter]].
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=== Adjust the Frequency of PhoneHome (<code>--phoneHomeThinning</code>) ===
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By default, when PhoneHome is enabled (default), it only happens a certain percentage of the time.
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Use <code>--phoneHomeThinning</code> to modify the percentage of the time that PhoneHome will run (0-100). By default, <code>--phoneHomeThinning</code> is set to 50.   
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PhoneHome will only occur if the run's random number modulo 100 is less than the --phoneHomeThinning value.
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N/A if <code>--noPhoneHome</code> is set.
 

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