MongoDB Tutorial 4: Apache Support
|
MongoDB Tutorial 4 : Introduction | Apache Support | phpMoAdmin Support | Mongo-Start
|
|
| MongoDB Production Plugin UniServer 6-Carbo. |
MongoDB adding Apache Support
Introduction
|
Currently our plugin reflects the standalone version as shown on right. It has a few shortcomings
This page covers Apache support |
|
Adding Apache support
Adding Apache support is easy just add the following as shown:.
//== Start Apache $cmd = "../../usr/local/php/php.exe -n ../main/start_servers.php 1"; // Cmd to run hidden run_cmd_hidden($cmd); // Run command //== Start MongoDB start_mongo_auth(); //------------- //== Stop Apache $cmd = "../../usr/local/php/php.exe -n ../main/stop_servers.php 1"; // Cmd to run hidden run_cmd_hidden($cmd); // Run command //== Stop MongoDB stop_mongo_auth();
You place these in the appropriate Mongo sections.
Problems
Each of the above starts a new-detached process. All script instruction are executed in quick succession hence that section of code may be completed before servers have time to either start or stop.
If user clicks start-client buttons before the server has started an error message can’t connect will be produced. Similarly the start button toggles if clicked again produces an error because it is trying to stop a nonexistent server.
Added to this a user is left in the dark there is no feedback informing what the current status is.
New code
Solution to the above; add a status bar for user feedback and recode to check server status and include a safety timer.
New code as follows:
//=== Start-Stop Servers ===================================================
case ID_DB_BUTTON: // Button toggles
$text = wb_get_text(wb_get_control($window, ID_DB_BUTTON)); // get button text
if($text == START_DB_BTXT ){ // Start server
//== Start Apache
$cmd = "../../usr/local/php/php.exe -n ../main/start_servers.php 1"; // Cmd to run hidden
run_cmd_hidden($cmd); // Run command
wb_set_text($statusbar_mongo, " Starting Apache"); // Inform user
// Check started
$tim_count_1 = 0; // Reset
$tim_str_1 = " Starting Apache "; // Reset
while(!apache_running()){ // Wait for server to start
$tim_str_1 .= "#"; // Add progress marker
wb_set_text($statusbar_mongo, $tim_str_1); // Inform user
if($tim_count_1 >=30){ // Failed to start
wb_set_text($statusbar_mongo, " Failed to start Apache"); // Inform user
}
wb_wait($window, 1000); // 1 second delay
$tim_count_1 = $tim_count_1 + 1; // Increment counter
}
wb_set_text($statusbar_mongo, " Apache started"); // Inform user
//== Start MongoDB
start_mongo_auth();
wb_set_text($statusbar_mongo, " Starting MongoDB"); // Inform user
// Check started
$tim_count_1 = 0; // Reset
$tim_str_1 = " Starting MongoDB "; // Reset
while(!mongodb_running()){ // Wait for server to start
$tim_str_1 .= "#"; // Add progress marker
wb_set_text($statusbar_mongo, $tim_str_1); // Inform user
if($tim_count_1 >=30){ // Failed to start
wb_set_text($statusbar_mongo, " Failed to start MongoDB"); // Inform user
}
wb_wait($window, 1000); // 1 second delay
$tim_count_1 = $tim_count_1 + 1; // Increment counter
}
wb_set_text($statusbar_mongo, " MongoDB started"); // Inform user
//== Set buttons
wb_set_text(wb_get_control($window, ID_DB_BUTTON),STOP_DB_BTXT); // set button text
wb_set_enabled(wb_get_control($window, ID_CLIENT_BUTTON), TRUE); // Enable Client button
}
else{ // Stop server
if(mongo_client_running()){ // Client must be stopped before Mongo Server
$str = "Before you can stop MongoDB \n";
$str .= "Please close Mongo Client \n\n";
$str .= "Type EXIT to close client\n";
$str .= "Data from RAM needs to be written to disk.\n";
wb_message_box($window, $str, "CLIENT RUNNING", WBC_INFO);
break;
}
else{ // Client not running
//== Stop Apache
$cmd = "../../usr/local/php/php.exe -n ../main/stop_servers.php 1"; // Cmd to run hidden
run_cmd_hidden($cmd); // Run command
wb_set_text($statusbar_mongo, " Stopping Apache"); // Inform user
// Check stopped
$tim_count_1 = 0; // Reset
$tim_str_1 = " Stopping Apache "; // Reset
while(apache_running()){ // Wait for server to stop
$tim_str_1 .= "#"; // Add progress marker
wb_set_text($statusbar_mongo, $tim_str_1); // Inform user
if($tim_count_1 >=30){ // Failed to start
wb_set_text($statusbar_mongo, " Failed to stop Apache"); // Inform user
}
wb_wait($window, 1000); // 1 second delay
$tim_count_1 = $tim_count_1 + 1; // Increment counter
}
wb_set_text($statusbar_mongo, " Apache stopped"); // Inform user
//== Stop MongoDB
stop_mongo_auth();
// Check stopped
$tim_count_1 = 0; // Reset
$tim_count_2 = 0; // Reset
$tim_str_1 = " Stopping MongoDB "; // Reset
while(mongodb_running()){ // Wait for server to start
$tim_str_1 .= "#"; // Add progress marker
wb_set_text($statusbar_mongo, $tim_str_1); // Inform user
if($tim_count_2 >=20){ // Number of # to display
$tim_str_1 = " Stopping MongoDB "; // Reset
$tim_count_2 = 0; // Reset
}
if($tim_count_1 >=600){ // Failed to stop
wb_set_text($statusbar_mongo, " Failed to stop MongoDB"); // Inform user
}
wb_wait($window, 2000); // 2 second delay
$tim_count_1 = $tim_count_1 + 1; // Increment counter
$tim_count_2 = $tim_count_2 + 1; // Increment counter
}
wb_set_text($statusbar_mongo, " MongoDB stopped"); // Inform user
//==Set button text
wb_set_text(wb_get_control($window, ID_DB_BUTTON),START_DB_BTXT); // set button text
wb_set_enabled(wb_get_control($window, ID_CLIENT_BUTTON), FALSE); // DISABLE Client button
}
}
break;
//================================================ END Start-Stop Servers ==
To end of componet section add following linr:
$statusbar_mongo = wb_create_control($win_mongo, StatusBar, " Displayed important information");
Summary
With the above modifications both server are started and stopped from a single button.
Button toggles between start and stop servers.
A status bar is included this is dual purpose it displays status messages and acts as a progress bar.
Next page covers adding support for phpMoAdmin.