added a second backup server for cokapi

pgbovine · pgbovine · commit f8575db2ef42 · 2018-08-27T17:07:50.000-07:00
diff --git a/v5-unity/build/composingprograms.bundle.js b/v5-unity/build/composingprograms.bundle.js
diff --git a/v5-unity/build/csc108h.bundle.js b/v5-unity/build/csc108h.bundle.js
diff --git a/v5-unity/build/iframe-embed.bundle.js b/v5-unity/build/iframe-embed.bundle.js
diff --git a/v5-unity/build/opt-live.bundle.js b/v5-unity/build/opt-live.bundle.js
diff --git a/v5-unity/build/recorder.bundle.js b/v5-unity/build/recorder.bundle.js
diff --git a/v5-unity/build/visualize.bundle.js b/v5-unity/build/visualize.bundle.js
diff --git a/v5-unity/c.html b/v5-unity/c.html
@@ -20,7 +20,7 @@
   <!-- let Webpack take care of everything. Use the [hash] feature to
        create unique filenames for releases:
        https://webpack.github.io/docs/long-term-caching.html -->
-  <script type="text/javascript" src="build/visualize.bundle.js?192ea30095" charset="utf-8"></script>
+  <script type="text/javascript" src="build/visualize.bundle.js?5fe9b9f6d8" charset="utf-8"></script>
 
 <!-- insert google-analytics.txt contents here -->
 
diff --git a/v5-unity/composingprograms.html b/v5-unity/composingprograms.html
@@ -11,7 +11,7 @@
   <title>Online Python Tutor - Composing Programs - Python 3</title>
 
   <meta http-equiv="Content-type" content="text/html; charset=UTF-8"/>
-  <script type="text/javascript" src="build/composingprograms.bundle.js?a52e5fe4b3" charset="utf-8"></script>
+  <script type="text/javascript" src="build/composingprograms.bundle.js?f6eb5823a8" charset="utf-8"></script>
 
 <!-- insert google-analytics.txt contents here -->
 
diff --git a/v5-unity/cpp.html b/v5-unity/cpp.html
@@ -20,7 +20,7 @@
   <!-- let Webpack take care of everything. Use the [hash] feature to
        create unique filenames for releases:
        https://webpack.github.io/docs/long-term-caching.html -->
-  <script type="text/javascript" src="build/visualize.bundle.js?192ea30095" charset="utf-8"></script>
+  <script type="text/javascript" src="build/visualize.bundle.js?5fe9b9f6d8" charset="utf-8"></script>
 
 <!-- insert google-analytics.txt contents here -->
 
diff --git a/v5-unity/csc108h.html b/v5-unity/csc108h.html
@@ -11,7 +11,7 @@
   <title>Online Python Tutor - csc108h</title>
 
   <meta http-equiv="Content-type" content="text/html; charset=UTF-8"/>
-  <script type="text/javascript" src="build/csc108h.bundle.js?f3025c7813" charset="utf-8"></script>
+  <script type="text/javascript" src="build/csc108h.bundle.js?f664ab7244" charset="utf-8"></script>
 
 <!-- insert google-analytics.txt contents here -->
 
diff --git a/v5-unity/csc108h_shared.html b/v5-unity/csc108h_shared.html
@@ -11,7 +11,7 @@
   <title>Online Python Tutor - csc108h with shared sessions</title>
 
   <meta http-equiv="Content-type" content="text/html; charset=UTF-8"/>
-  <script type="text/javascript" src="build/csc108h.bundle.js?f3025c7813" charset="utf-8"></script>
+  <script type="text/javascript" src="build/csc108h.bundle.js?f664ab7244" charset="utf-8"></script>
 
 <!-- insert google-analytics.txt contents here -->
 
diff --git a/v5-unity/iframe-embed.html b/v5-unity/iframe-embed.html
@@ -7,7 +7,7 @@
   <!-- let Webpack take care of everything. Use the [hash] feature to
        create unique filenames for releases:
        https://webpack.github.io/docs/long-term-caching.html -->
-  <script type="text/javascript" src="build/iframe-embed.bundle.js?ffce77cafd" charset="utf-8"></script>
+  <script type="text/javascript" src="build/iframe-embed.bundle.js?47c0f006d8" charset="utf-8"></script>
 
 </head>
 
diff --git a/v5-unity/java.html b/v5-unity/java.html
@@ -20,7 +20,7 @@
   <!-- let Webpack take care of everything. Use the [hash] feature to
        create unique filenames for releases:
        https://webpack.github.io/docs/long-term-caching.html -->
-  <script type="text/javascript" src="build/visualize.bundle.js?192ea30095" charset="utf-8"></script>
+  <script type="text/javascript" src="build/visualize.bundle.js?5fe9b9f6d8" charset="utf-8"></script>
 
 <!-- insert google-analytics.txt contents here -->
 
diff --git a/v5-unity/javascript.html b/v5-unity/javascript.html
@@ -20,7 +20,7 @@
   <!-- let Webpack take care of everything. Use the [hash] feature to
        create unique filenames for releases:
        https://webpack.github.io/docs/long-term-caching.html -->
-  <script type="text/javascript" src="build/visualize.bundle.js?192ea30095" charset="utf-8"></script>
+  <script type="text/javascript" src="build/visualize.bundle.js?5fe9b9f6d8" charset="utf-8"></script>
 
 <!-- insert google-analytics.txt contents here -->
 
diff --git a/v5-unity/js/opt-frontend-common.ts b/v5-unity/js/opt-frontend-common.ts
@@ -90,9 +90,10 @@ export abstract class AbstractBaseFrontend {
   serverRoot = (window.location.protocol === 'https:') ?
                 'https://cokapi.com/' : // my certificate for https is registered via cokapi.com, so use it for now
                 'http://cokapi.com/';   // try cokapi.com so that hopefully it works through firewalls better than directly using IP addr
+                                        // (but that's just an unsubstantiated hunch)
 
-  backupHttpServerRoot = 'http://45.33.41.179/'; // this is my backup server in case the primary is too busy
-  // TODO: add more backup servers and randomly load-balance as necessary in the future
+  // randomly pick one backup server to load balance:
+  backupHttpServerRoot = (Math.random() >= 0.5) ? 'http://45.33.41.179/' : 'http://23.239.12.25/';
 
   // see ../../v4-cokapi/cokapi.js for details
   langSettingToJsonpEndpoint = {
@@ -452,7 +453,7 @@ export abstract class AbstractBaseFrontend {
 
         var retryOnBackupServer = () => {
           // first log a #TryBackup error entry:
-          this.setFronendError(["Main server is busy or has errors; re-trying using backup server ... [#TryBackup]"]);
+          this.setFronendError(["Main server is busy or has errors; re-trying using backup server " + this.backupHttpServerRoot + " ... [#TryBackup]"]);
 
           // now re-try the query using the backup server:
           var backup_jsonp_endpoint = this.langSettingToJsonpEndpointBackup[pyState];
diff --git a/v5-unity/live.html b/v5-unity/live.html
@@ -16,7 +16,7 @@
   <!-- let Webpack take care of everything. Use the [hash] feature to
        create unique filenames for releases:
        https://webpack.github.io/docs/long-term-caching.html -->
-  <script type="text/javascript" src="build/opt-live.bundle.js?d0978d2491" charset="utf-8"></script>
+  <script type="text/javascript" src="build/opt-live.bundle.js?5df1bd9dfa" charset="utf-8"></script>
 
 <!-- insert google-analytics.txt contents here -->
 
diff --git a/v5-unity/recorder.html b/v5-unity/recorder.html
@@ -15,7 +15,7 @@
   <!-- let Webpack take care of everything. Use the [hash] feature to
        create unique filenames for releases:
        https://webpack.github.io/docs/long-term-caching.html -->
-  <script type="text/javascript" src="build/recorder.bundle.js?b7e91fa7f1" charset="utf-8"></script>
+  <script type="text/javascript" src="build/recorder.bundle.js?05e40922bd" charset="utf-8"></script>
 
 <!-- insert google-analytics.txt contents here -->
 
diff --git a/v5-unity/ruby.html b/v5-unity/ruby.html
@@ -20,7 +20,7 @@
   <!-- let Webpack take care of everything. Use the [hash] feature to
        create unique filenames for releases:
        https://webpack.github.io/docs/long-term-caching.html -->
-  <script type="text/javascript" src="build/visualize.bundle.js?192ea30095" charset="utf-8"></script>
+  <script type="text/javascript" src="build/visualize.bundle.js?5fe9b9f6d8" charset="utf-8"></script>
 
 <!-- insert google-analytics.txt contents here -->
 
diff --git a/v5-unity/typescript.html b/v5-unity/typescript.html
@@ -20,7 +20,7 @@
   <!-- let Webpack take care of everything. Use the [hash] feature to
        create unique filenames for releases:
        https://webpack.github.io/docs/long-term-caching.html -->
-  <script type="text/javascript" src="build/visualize.bundle.js?192ea30095" charset="utf-8"></script>
+  <script type="text/javascript" src="build/visualize.bundle.js?5fe9b9f6d8" charset="utf-8"></script>
 
 <!-- insert google-analytics.txt contents here -->
 
diff --git a/v5-unity/visualize.html b/v5-unity/visualize.html
@@ -15,7 +15,7 @@
   <!-- let Webpack take care of everything. Use the [hash] feature to
        create unique filenames for releases:
        https://webpack.github.io/docs/long-term-caching.html -->
-  <script type="text/javascript" src="build/visualize.bundle.js?192ea30095" charset="utf-8"></script>
+  <script type="text/javascript" src="build/visualize.bundle.js?5fe9b9f6d8" charset="utf-8"></script>
 
 <!-- insert google-analytics.txt contents here -->
 
