php - cronでPHPスクリプトを実行します。ログ出力が正しくありません

Question

次の機能を持つcronで実行されているPHPスクリプトがあります。

キュー内のアイテムを処理します
アイテムが正常に処理された場合、processQueueItem（）メソッドはtrueを返します。失敗した場合は、falseを返します。
whileループで50分間繰り返します

このコードには、設定したログに情報を出力するためのエコーも含まれています。

コードは次のとおりです。

<?php
require_once('/var/www/vhosts/com-ext.com/httpdocs/745_TheYGSGroup/LWC_API/com/MindFireInc/LookWhosClicking/class.LWC.php');    
require_once('/var/www/vhosts/com-ext.com/httpdocs/745_TheYGSGroup/LWC_API/com/MindFireInc/Database/class.DB.php');
require_once('/var/www/vhosts/com-ext.com/httpdocs/745_TheYGSGroup/includes/classes.php');

echo date("M d Y H:i:s"), " cron.processQueue.php has started.", "\n";

$consumer = new Consumer;

set_time_limit(3300);
$RUNS_MIN = 10;
$itemCount = 0;

$startedOn = time();
$expireOn = $startedOn + (60 * $RUNS_MIN); // In Sec
while( time() < $expireOn ) {

    if( $consumer->processQueueItem() )
        $itemCount++;

    if( $itemCount % 60 == 0 )
        echo date("M d Y H:i:s"), " Script still running... ", $itemCount, " processed.\n";

}

echo date("M d Y H:i:s"), " cron.processQueue.php has ended. Processed ", $itemCount, " items. \n";

？>

processQueueItem（）は正常に機能しており（そのため、この投稿にスクリプトを含めませんでした）、出力は正常に機能していますが、処理されたアイテムのカウントがおかしな動作をしています。

スクリプトが実行され、キューが空の場合、スクリプトはsleep（60）になり、processQueueItem（）に対してfalseを返します。「cron.processQueue.phpが開始されました」と50行の「スクリプトがまだ実行中です...0処理済み」が出力されます。最後に、「終了しました」スクリプトを出力します。次に例を示します。

Jun 01 2012 11:00:02 cron.processQueue.php has started.
Jun 01 2012 11:01:02 Script still running... 0 processed.
Jun 01 2012 11:02:02 Script still running... 0 processed.
Jun 01 2012 11:03:02 Script still running... 0 processed.
Jun 01 2012 11:04:02 Script still running... 0 processed.
Jun 01 2012 11:05:02 Script still running... 0 processed.
Jun 01 2012 11:06:02 Script still running... 0 processed.
Jun 01 2012 11:07:02 Script still running... 0 processed.
Jun 01 2012 11:08:02 Script still running... 0 processed.
Jun 01 2012 11:09:02 Script still running... 0 processed.
Jun 01 2012 11:10:02 Script still running... 0 processed.
Jun 01 2012 11:11:02 Script still running... 0 processed.
Jun 01 2012 11:12:02 Script still running... 0 processed.
Jun 01 2012 11:13:02 Script still running... 0 processed.
Jun 01 2012 11:14:02 Script still running... 0 processed.
Jun 01 2012 11:15:02 Script still running... 0 processed.
Jun 01 2012 11:16:02 Script still running... 0 processed.
Jun 01 2012 11:17:02 Script still running... 0 processed.
Jun 01 2012 11:18:02 Script still running... 0 processed.
Jun 01 2012 11:19:02 Script still running... 0 processed.
Jun 01 2012 11:20:02 Script still running... 0 processed.
Jun 01 2012 11:21:02 Script still running... 0 processed.
Jun 01 2012 11:22:02 Script still running... 0 processed.
Jun 01 2012 11:23:02 Script still running... 0 processed.
Jun 01 2012 11:24:02 Script still running... 0 processed.
Jun 01 2012 11:25:02 Script still running... 0 processed.
Jun 01 2012 11:26:02 Script still running... 0 processed.
Jun 01 2012 11:27:02 Script still running... 0 processed.
Jun 01 2012 11:28:02 Script still running... 0 processed.
Jun 01 2012 11:29:02 Script still running... 0 processed.
Jun 01 2012 11:30:02 Script still running... 0 processed.
Jun 01 2012 11:31:02 Script still running... 0 processed.
Jun 01 2012 11:32:02 Script still running... 0 processed.
Jun 01 2012 11:33:02 Script still running... 0 processed.
Jun 01 2012 11:34:02 Script still running... 0 processed.
Jun 01 2012 11:35:02 Script still running... 0 processed.
Jun 01 2012 11:36:02 Script still running... 0 processed.
Jun 01 2012 11:37:02 Script still running... 0 processed.
Jun 01 2012 11:38:02 Script still running... 0 processed.
Jun 01 2012 11:39:02 Script still running... 0 processed.
Jun 01 2012 11:40:02 Script still running... 0 processed.
Jun 01 2012 11:41:02 Script still running... 0 processed.
Jun 01 2012 11:42:02 Script still running... 0 processed.
Jun 01 2012 11:43:02 Script still running... 0 processed.
Jun 01 2012 11:44:02 Script still running... 0 processed.
Jun 01 2012 11:45:02 Script still running... 0 processed.
Jun 01 2012 11:46:02 Script still running... 0 processed.
Jun 01 2012 11:47:02 Script still running... 0 processed.
Jun 01 2012 11:48:02 Script still running... 0 processed.
Jun 01 2012 11:49:02 Script still running... 0 processed.
Jun 01 2012 11:50:02 Script still running... 0 processed.
Jun 01 2012 11:50:02 cron.processQueue.php has ended. Processed 0 items.

ただし、キューに100個のアイテムがある場合（キューは1秒間に約1個のアイテムで処理されます）、スクリプトはすべてのアイテムを完了し、最後の「スクリプトはまだ実行中です...」の出力を返し、停止します。このスクリプトはcronで実行されるため、ログにリストされる次の項目は「cron.processQueue.phpが開始されました」です。次に例を示します。

May 31 2012 16:30:01 pullData.php has started.
May 31 2012 16:31:18 Script still running... 60 processed.
May 31 2012 16:32:33 Script still running... 120 processed.
May 31 2012 16:33:48 Script still running... 180 processed.
May 31 2012 16:35:03 Script still running... 240 processed.
May 31 2012 16:36:19 Script still running... 300 processed.
May 31 2012 16:37:34 Script still running... 360 processed.
May 31 2012 16:38:50 Script still running... 420 processed.
May 31 2012 16:40:05 Script still running... 480 processed.
May 31 2012 16:41:21 Script still running... 540 processed.
May 31 2012 16:42:36 Script still running... 600 processed.
May 31 2012 16:43:51 Script still running... 660 processed.
May 31 2012 16:45:05 Script still running... 720 processed.
May 31 2012 16:46:22 Script still running... 780 processed.
May 31 2012 16:47:37 Script still running... 840 processed.
May 31 2012 16:48:52 Script still running... 900 processed.
May 31 2012 16:50:09 Script still running... 960 processed.
May 31 2012 16:51:31 Script still running... 1020 processed.
May 31 2012 16:52:46 Script still running... 1080 processed.
May 31 2012 16:54:01 Script still running... 1140 processed.
May 31 2012 16:55:16 Script still running... 1200 processed.
May 31 2012 16:56:32 Script still running... 1260 processed.
May 31 2012 16:57:47 Script still running... 1320 processed.
May 31 2012 16:59:02 Script still running... 1380 processed.
May 31 2012 17:00:17 Script still running... 1440 processed.
May 31 2012 17:01:33 Script still running... 1500 processed.
May 31 2012 17:02:48 Script still running... 1560 processed.
May 31 2012 17:30:01 cron.processQueue.php has started.

スクリプトの1回の実行で、いくつかのアイテムがあり、アイテムがないのに、なぜプロセスが終了しないのかよくわかりません。それがまったく意味をなさない場合は本当に申し訳ありませんが、洞察力をいただければ幸いです。

score 1 · Accepted Answer

問題は間違いなくwhileループです:

while( time() < $expireOn ) {

このループは期限が切れるまで実行され、キューのステータスは考慮されません。次のようなことをする必要があります：

$continue = true;
while( time() < $expireOn && !($continue === false)) {

    if( $continue = $consumer->processQueueItem() )

これにより、が返されるとwhileループが停止します。$consumer->processQueueItem()false

score 0 · Accepted Answer

問題は $consumer->processQueueItem() にあるに違いありません。機能している可能性がありますが、TRUE を返さない可能性があります (または、まったく値を返さない可能性があります [void])。そのため、アイテムカウンターはインクリメントされません。

php - cronでPHPスクリプトを実行します。ログ出力が正しくありません

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