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Add retry logic to the task framework. We retry 4 times with

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increasing backoff and if that fails, we put up a manual "retry" link.
Fixes ticket #1270.
This commit is contained in:
Bharat Mediratta
2010-09-06 14:08:05 -07:00
parent 2d948cb39f
commit fc856b6aba
1 changed files with 20 additions and 0 deletions
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20
modules/gallery/views/admin_maintenance_task.html.php
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@@ -3,6 +3,7 @@
var target_value;
var animation = null;
var delta = 1;
var consecutive_error_count = 0;
animate_progress_bar = function() {
var current_value = parseInt($(".g-progress-bar div").css("width").replace("%", ""));
if (target_value > current_value) {
@@ -26,12 +27,15 @@
$.fn.gallery_hover_init();
}
var FAILED_MSG = <?= t("Something went wrong...sorry! <a>Retry</a> or check the task log for details")->for_js() ?>;
var ERROR_MSG = <?= t("Something went wrong! Trying again in a moment... (__COUNT__)")->for_js() ?>;
update = function() {
$.ajax({
url: <?= html::js_string(url::site("admin/maintenance/run/$task->id?csrf=$csrf")) ?>,
dataType: "json",
success: function(data) {
target_value = data.task.percent_complete;
consecutive_error_count = 0;
if (!animation) {
animate_progress_bar();
}
@@ -42,6 +46,22 @@
} else {
setTimeout(update, 100);
}
},
error: function(req, textStatus, errorThrown) {
if (textStatus == "timeout" || textStatus == "parsererror") {
consecutive_error_count++;
if (consecutive_error_count == 5) {
$("#g-status").html(FAILED_MSG);
$("#g-pause-button").hide();
$("#g-done-button").show();
consecutive_error_count = 0; // in case of a manual retry
$("#g-status a").attr("href", "javascript:update()");
} else {
$("#g-status").html(ERROR_MSG.replace("__COUNT__", consecutive_error_count));
// Give a little time to back off before retrying
setTimeout(update, 1500 * consecutive_error_count);
}
}
}
});
}