我正在使用insert_batch()
将 10000 多行大量插入数据库中的表中。我正在做一些测试,我注意到有时所有 10.000+ 行都被正确插入,但在某些情况下,我在表的总数中错过了 100+ 行。
我拥有的记录中的字段数据没问题,因为我对每个测试都使用相同的数据,而且大多数时候我没有问题。例如,我尝试了 20 次将相同的数据插入到我的数据库中,并且在 19 次所有行都将正确插入,但在这一次我会错过 100 行或更多行。
函数insert_batch()
如下:
protected function save_sms_to_database() {
//insert_Batch
$datestring = "%Y-%m-%d %h:%m:%s";
$time = time();
$datetime = mdate($datestring, $time);
$this->date_sent = $datetime;
foreach ($this->destinations as $k => $v) {
$sms_data[$k] = array(
'campaign_id' => $this->campaign_id,
'sender_id' => $this->from,
'destination' => $v,
'token' => md5(time() . 'smstoken' . rand(1, 99999999999)),
'message' => $this->body,
'unicode' => $this->unicode,
'long' => $this->longsms,
'credit_cost' => $this->eachMsgCreditCost,
'date_sent' => $this->date_sent,
'deleted' => 0,
'status' => 1,
'scheduled' => $this->scheduled,
);
}
$this->ci->db->insert_batch('outgoingSMS', $sms_data);
if ($this->ci->db->affected_rows() > 0) {
// outgoingSMS data were successfully inserted
return TRUE;
} else {
log_message('error', $this->campaign_id.' :: Could not insert sms into database');
log_message('error', $this->ci->db->_error_message());
return FALSE; // sms was not inserted correctly
}
}
我该如何调试insert_batch()
这种场合?
我已经对DB_active_rec.php
在 insert_batch 期间进行一些日志记录进行了一些更改,但到目前为止我无法成功重现问题以查看问题所在。但是就问题在开始时出现 2-3 次并且我没有对我的逻辑进行重大更改来修复它,我不能这样离开它,因为我不相信 codeigniter 的insert_batch()
生产功能。
我还添加了 codeigniter 的 insert_batch() 函数:
public function insert_batch($table = '', $set = NULL)
{
$countz = 0;
if ( ! is_null($set))
{
$this->set_insert_batch($set);
}
if (count($this->ar_set) == 0)
{
if ($this->db_debug)
{
//No valid data array. Folds in cases where keys and values did not match up
return $this->display_error('db_must_use_set');
}
return FALSE;
}
if ($table == '')
{
if ( ! isset($this->ar_from[0]))
{
if ($this->db_debug)
{
return $this->display_error('db_must_set_table');
}
return FALSE;
}
$table = $this->ar_from[0];
}
// Batch this baby
for ($i = 0, $total = count($this->ar_set); $i < $total; $i = $i + 100)
{
$sql = $this->_insert_batch($this->_protect_identifiers($table, TRUE, NULL, FALSE), $this->ar_keys, array_slice($this->ar_set, $i, 100));
//echo $sql;
$this->query($sql);
$countz = $countz + $this->affected_rows();
}
$this->_reset_write();
log_message('info', "Total inserts from batch:".$countz);
return TRUE;
}
最后一个log_message()
包含来自批次的总插入量也显示了问题,因为当我的插入量少于预期时,我也得到了非预期数量的插入量。
我必须考虑其他方法才能将数千行插入到我的数据库中(w/或 w/o codeigniter)。
有人对这种问题有任何线索吗?也许它与硬盘驱动器或系统内存不足有关?这是一台带有 1gb 内存的旧电脑。
编辑:根据要求,我在这里放了一个示例 INSERT 语句,其中包含由 codeigniter 的insert_batch()
函数生成的 9 行
INSERT INTO `outgoingSMS` (`campaign_id`, `credit_cost`, `date_sent`, `deleted`, `destination`, `long`, `message`, `scheduled`, `sender_id`, `status`, `token`, `unicode`) VALUES ('279',1,'2013-08-02 02:08:34',0,'14141415151515',0,'fd',0,'sotos',1,'4d270f6cc2fb32fb47f81e8e15412a36',0), ('279',1,'2013-08-02 02:08:34',0,'30697000000140',0,'fd',0,'sotos',1,'9d5a0572f5bb2807e33571c3cbf8bd09',0), ('279',1,'2013-08-02 02:08:34',0,'30697000000142',0,'fd',0,'sotos',1,'ab99174d88f7d19850fde010a1518854',0), ('279',1,'2013-08-02 02:08:34',0,'30697000000147',0,'fd',0,'sotos',1,'95c48b96397b21ddbe17ad8ed026221e',0), ('279',1,'2013-08-02 02:08:34',0,'306972233469',0,'fd',0,'sotos',1,'6c55bc3181be50d8a99f0ddba1e783bf',0), ('279',1,'2013-08-02 02:08:34',0,'306972233470',0,'fd',0,'sotos',1,'d9cae1cbe7eaecb9c0726dce5f872e1c',0), ('279',1,'2013-08-02 02:08:34',0,'306972233474',0,'fd',0,'sotos',1,'579c34fa7778ac2e329afe894339a43d',0), ('279',1,'2013-08-02 02:08:34',0,'306972233475',0,'fd',0,'sotos',1,'77d68c23422bb11558cf6fa9718b73d2',0), ('279',1,'2013-08-02 02:08:34',0,'30697444333',0,'fd',0,'sotos',1,'a7fd63b8b053b04bc9f83dcd4cf1df55',0)
那是一个完整的插入。