private void pingTimerExpired(object State)
{
try
{
if (SolrWrapper.Ping() == "OK")
{
// Log the successful ping
EventLogHelper.Write_Event(ServiceSettings.Logging.PingEventId, "Successfully pinged solr/lucene for routine monitoring");
// Tell the timer to fire again in XX milliseconds, and only fire that once
pingTimer.Change(ServiceSettings.Monitor.PauseDuration * 1000, Timeout.Infinite);
}
else
{
// Write the error message
EventLogHelper.Write_Error(ServiceSettings.Logging.FailedPingEventId, "Error while pinging solr/lucene for routine monitoring");
// For now, terminate on the first failed ping
ExitCode = 1064;
Stop();
}
}
catch (Exception ex)
{
EventLogHelper.Write_Error(ServiceSettings.Logging.FailedPingEventId, "EXCEPTION CAUGHT while pinging solr/lucene for routine monitoring", ex);
}
}
static void Main(string[] args)
{
// Perform all the checks against JAVA
if (!JavaWrapper.Check_Java())
{
// Just abort, since the java wrapper logs any errors
return;
}
// See if Solr is already running, by trying to open a connection to the port
if (is_port_in_use(ServiceSettings.Solr.Port))
{
Console.WriteLine("POrt is in use");
}
else
{
Console.WriteLine("Port is NOT in use");
}
Console.WriteLine("In SolrService.OnStart() method");
// Try to start SOLR
if (!SolrWrapper.Start_Direct(20000))
{
try
{
Console.WriteLine("Failed to start - exiting service with exit code of 1064");
Console.WriteLine("Stopping... press any key to acknowledge");
Console.ReadKey();
}
catch (Exception ee)
{
Console.WriteLine("EXCEPTION caught while trying to exit service with exit code of 1064 due to failed solr/lucene start");
}
return;
}
if (is_port_in_use(ServiceSettings.Solr.Port))
{
Console.WriteLine("Port is in use");
}
else
{
Console.WriteLine("Port is NOT in use");
}
// Try to ping the solr/lucene instance, just to ensure it is working
try
{
if (SolrWrapper.Ping() == "OK")
{
// Log the successful ping
Console.WriteLine("Successfully pinged solr/lucene for routine monitoring");
}
else
{
// Write the error message
Console.WriteLine("Error while pinging solr/lucene for routine monitoring");
// During startup, terminate on the first failed ping
Console.WriteLine("Stopping... press any key to acknowledge");
Console.ReadKey();
}
}
catch (Exception ex)
{
Console.WriteLine("EXCEPTION CAUGHT while pinging solr/lucene for routine monitoring", ex);
// During startup, terminate on the first failed ping
Console.WriteLine("Stopping... press any key to acknowledge");
Console.ReadKey();
}
if (is_port_in_use(ServiceSettings.Solr.Port))
{
Console.WriteLine("POrt is in use");
}
else
{
Console.WriteLine("Port is NOT in use");
}
Console.WriteLine("Stopping solr...");
SolrWrapper.Stop();
if (is_port_in_use(ServiceSettings.Solr.Port))
{
Console.WriteLine("POrt is in use");
}
else
{
Console.WriteLine("Port is NOT in use");
}
Console.ReadKey();
}
protected override void OnStart(string[] args)
{
EventLogHelper.Write_Verbose("In SolrService.OnStart() method");
// Check the JAVA version
if (!JavaWrapper.Check_Java())
{
// Just abort, since the java wrapper logs any errors
return;
}
// Try to start SOLR
if (!SolrWrapper.Start_Direct(20000))
{
try
{
EventLogHelper.Write_Verbose("Failed to start - exiting service with exit code of 1064");
ExitCode = 1064;
Stop();
}
catch (Exception ee)
{
EventLogHelper.Write_Verbose("EXCEPTION caught while trying to exit service with exit code of 1064 due to failed solr/lucene start");
}
return;
}
// Try to ping the solr/lucene instance, just to ensure it is working
try
{
if (SolrWrapper.Ping() == "OK")
{
// Log the successful ping
EventLogHelper.Write_Event(ServiceSettings.Logging.PingEventId, "Successfully pinged solr/lucene for routine monitoring");
}
else
{
// Write the error message
EventLogHelper.Write_Error(ServiceSettings.Logging.FailedPingEventId, "Error while pinging solr/lucene for routine monitoring");
// During startup, terminate on the first failed ping
ExitCode = 1064;
Stop();
}
}
catch (Exception ex)
{
EventLogHelper.Write_Error(ServiceSettings.Logging.FailedPingEventId, "EXCEPTION CAUGHT while pinging solr/lucene for routine monitoring", ex);
// During startup, terminate on the first failed ping
ExitCode = 1064;
Stop();
}
// Since Solr started, start up the timer
if (ServiceSettings.Monitor.PauseDuration > 0)
{
EventLogHelper.Write_Verbose("Starting the ping timer in SolrService.OnStart() with an internval of " + ServiceSettings.Monitor.PauseDuration + " seconds.");
// Tell the timer to fire again in XX milliseconds, and only fire that once
pingTimer = new Timer(pingTimerExpired, null, ServiceSettings.Monitor.PauseDuration * 1000, Timeout.Infinite);
}
}