hi,
my gralog server version is 1.1.3 and is installed on a centos 7 machine,
java version is 1.7_something.
so i've created a periodical plugin that just writes the date into a file
every 30 seconds , with the following code:
public class DBAdapter extends Periodical {
@Override
public boolean runsForever() {
return false;
}
@Override
public boolean stopOnGracefulShutdown() {
return true;
}
@Override
public boolean masterOnly() {
return false;
}
@Override
public boolean startOnThisNode() {
return true;
}
@Override
public boolean isDaemon() {
return true;
}
@Override
public int getInitialDelaySeconds() {
return 5;
}
@Override
public int getPeriodSeconds() {
return 30;
}
@Override
protected Logger getLogger() {
return null;
}
@Override
public void doRun() {
try(PrintWriter out = new PrintWriter(new BufferedWriter(new
FileWriter("periodical.log", true))))
{
Date newdate = new Date();
out.println(newdate);
}
catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
//e.printStackTrace();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
//e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
//e.printStackTrace();
}
catch (Exception e) {
// TODO Auto-generated catch block
//e.printStackTrace();
}
}
}
then i've built the pludin using "mvn.cmd package" command (windows 7) and
put the plugin into graylog's plugin directory. after i restart the service
i get the next lines in the graylo'gs log file, telling me the plugin is
found and is being ran every 30 seconds just as expected :
2015-06-29T17:32:45.047+03:00 INFO [CmdLineTool] Loaded plugins:
[Anonymous Usage Statistics 1.0.7
[org.graylog.plugins.usagestatistics.UsageStatsPlugin], DBAdapter 1.0.0
[com.tradency.DBAdapterPlugin]]
2015-06-29T17:32:58.973+03:00 INFO [Periodicals] Starting
[com.tradency.DBAdapter] periodical in [5s], polling every [30s].
however when i look for the files that should has been created
(periodical.log) i cant find it. where can i get an indication that the
plugin's code was called and executed, and what might be the problem. i
couldn't manage to find any documentation regarding a periodical plugin.
thanks,
Ben.
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