Jenkins - Configure Jenkins to poll changes in SCM

Question

I am working with jenkins and I would like to run the maven goals when there is a change in the svn repository  I ve attached a picture with my current configuration   I know that checking the repository every 5 min is crazy  I would like to run it only when there is a new change  but I could not find the way  Anyway  it is not checking the repository  What am I doing wrong    Thanks in advance

User · Answer

I believe best practice these days is H 5          which means every 5 minutes with a hashing factor to avoid all jobs starting at EXACTLY the same time

User · Answer

I think your cron is not correct  According to what you described  you may need to change cron schedule to     5           What you put in your schedule now mean it will poll the SCM at 5 past of every hour

User · Answer

That s an old question  I know  But  according to me  it is missing proper answer   The actual   optimal workflow here would be to incorporate SVN s post-commit hook so it triggers Jenkins job after the actual commit is issued only  not in any other case  This way you avoid unneeded polls on your SCM system   You may find the following links interesting    Jenkins Wiki s post-commit hook description on Subversion Plugin s doc-site  Here you find documented example of the script you are interested in  Hook-scripts contrib directory in the source of official Apache Foundation s Subversion s source control repository  Similar question on StackOverflow    In case of my setup in the corp s SVN server  I utilize the following  censored  script as a post-commit hook on the subversion server side      bin sh    POST-COMMIT HOOK  REPOS   1  REV   2   TXN NAME   3  LOGFILE  var log xxx svn xxx post-commit log  MSG   svnlook pg --revprop  REPOS svn log -r REV  JENK  http   jenkins xxx com 8080 job xxx job xxx buildWithParameters token xxx amp username xxx amp cause xxx r REV  JENKtest  http   jenkins xxx com 8080 view all job xxx job xxxx buildWithParameters token xxx amp username xxx amp cause xxx r REV   echo post-commit     gt  gt   LOGFILE 2 gt  amp 1    trigger Jenkins job - xxx svnlook changed  REPOS -r  REV   cut -d    -f4   grep -qP  branches xxx xxx Source  if test 0 -eq      then         echo   date  -  REPOS -  REV   gt  gt   LOGFILE         svnlook changed  REPOS -r  REV   cut -d    -f4   grep -P  branches xxx xxx Source   gt  gt   LOGFILE 2 gt  amp 1         echo logmsg   MSG  gt  gt   LOGFILE 2 gt  amp 1         echo curl -qs  JENK  gt  gt   LOGFILE 2 gt  amp 1         curl -qs  JENK  gt  gt   LOGFILE 2 gt  amp 1         echo --------  gt  gt   LOGFILE fi    trigger Jenkins job - xxxx svnlook changed  REPOS -r  REV   cut -d    -f4   grep -qP  branches xxx TEST  if test 0 -eq      then         echo   date  -  REPOS -  REV   gt  gt   LOGFILE         svnlook changed  REPOS -r  REV   cut -d    -f4   grep -P  branches xxx TEST   gt  gt   LOGFILE 2 gt  amp 1         echo logmsg   MSG  gt  gt   LOGFILE 2 gt  amp 1         echo curl -qs  JENKtest  gt  gt   LOGFILE 2 gt  amp 1         curl -qs  JENKtest  gt  gt   LOGFILE 2 gt  amp 1         echo --------  gt  gt   LOGFILE fi  exit 0

[jenkins] Jenkins - Configure Jenkins to poll changes in SCM

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