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Thread tagged as: Error, Api, Runway

Categories and Scheduled Tasks

Hi there,

A little while a go I developed a Perch Scheduled Task, that has been working until I updated to Perch 2.8.18. The task loops through XML and creates collection items (and any categories it needs to).

It seems to fail on the catParentID method in PerchCategories_Category.php called from update_meta.

    $this->catParentID()

The main part of the script in question is as follows:

    //set category set/group id
    $categoryDetails = array('catID' => $catID);

    //instantiate single category
    $category = new PerchCategories_Category($categoryDetails);

    //set fields of category
    $catDynamicFields = array(
        "catDepth" => null,
        "desc" =>
            array(
                "raw" => "",
                "processed" => "",
            )
    );

    //more fields of category
    $data = array(
        'catTitle' => $title,
        'catSlug' => $catSlug,
        'catDisplayPath' => $title,
        'catDynamicFields' => PerchUtil::json_safe_encode($catDynamicFields)
    );

    //update the category
    $category->update($data);

I am also getting an apache error:

[Thu Dec 10 13:24:31 2015] [notice] child pid 16205 exit signal Segmentation fault (11)

When I run method_exists on catParentID, it returns false.

I've been looking at it for best part of today, trying to figure out where it's failing. Perhaps it's just a result of recent core changes. I wondered if you'd be able to shed any light on the matter.

Let me know if you need any additional information.

Thanks.
CDD Nation

CDD Nation 0 points

  • 5 years ago
Drew McLellan

Drew McLellan 2638 points
Perch Support

5 years ago

A seg fault can be hard to debug.

catParentID isn't a method - it's processed dynamically by a __call() magic method - so that's not surprising.

Do you get any debuggable output at all?
CDD Nation

CDD Nation 0 points

5 years ago

Hi Drew,

I see (catParentID)!

When I manually run the HTTP request, as I usually do for manual running of the scheduled tasks, it shows me (in chrome):

No data received ERR_EMPTY_RESPONSE

When having perch debug switched on and viewing /perch/core/settings/tasks/

It shows:


Debug Message
SELECT u.*, r.* FROM perch2_users u, perch2_user_roles r WHERE u.roleID=r.roleID AND u.userEnabled=1 AND u.userID=3 AND u.userHash='bdfce534e700c844be72469db7101e61' LIMIT 1
UPDATE perch2_users SET userHash='c0c2cb5fa63894243c4336821598e9c7' WHERE userID='3'
SELECT p.privKey FROM perch2_user_privileges p
SELECT * FROM (SELECT DISTINCT settingID, settingValue FROM perch2_settings WHERE userID=3 OR userID=0 ORDER BY userID DESC) AS settings GROUP BY settingID
Adding: Forms
SELECT collectionID, collectionKey, collectionEditRoles FROM perch2_collections WHERE collectionInAppMenu=1 ORDER BY collectionOrder ASC
SELECT * FROM perch2_scheduled_tasks WHERE 1=1 ORDER BY taskStartTime DESC LIMIT 20
Looking up missing property taskEndTime
SELECT taskEndTime FROM perch2_scheduled_tasks WHERE taskID='1548'
Looking up missing property taskEndTime
SELECT taskEndTime FROM perch2_scheduled_tasks WHERE taskID='1547'
Looking up missing property taskEndTime
SELECT taskEndTime FROM perch2_scheduled_tasks WHERE taskID='1546'
Looking up missing property taskEndTime
SELECT taskEndTime FROM perch2_scheduled_tasks WHERE taskID='1545'
Looking up missing property taskEndTime
SELECT taskEndTime FROM perch2_scheduled_tasks WHERE taskID='1544'
Looking up missing property taskEndTime
SELECT taskEndTime FROM perch2_scheduled_tasks WHERE taskID='1543'
Looking up missing property taskEndTime
SELECT taskEndTime FROM perch2_scheduled_tasks WHERE taskID='1542'
Looking up missing property taskEndTime
SELECT taskEndTime FROM perch2_scheduled_tasks WHERE taskID='1541'
Looking up missing property taskEndTime
SELECT taskEndTime FROM perch2_scheduled_tasks WHERE taskID='1540'
Looking up missing property taskEndTime
SELECT taskEndTime FROM perch2_scheduled_tasks WHERE taskID='1539'
Looking up missing property taskEndTime
SELECT taskEndTime FROM perch2_scheduled_tasks WHERE taskID='1538'
Looking up missing property taskEndTime
SELECT taskEndTime FROM perch2_scheduled_tasks WHERE taskID='1537'
Looking up missing property taskEndTime
SELECT taskEndTime FROM perch2_scheduled_tasks WHERE taskID='1536'
Looking up missing property taskEndTime
SELECT taskEndTime FROM perch2_scheduled_tasks WHERE taskID='1535'
Looking up missing property taskEndTime
SELECT taskEndTime FROM perch2_scheduled_tasks WHERE taskID='1534'
Looking up missing property taskEndTime
SELECT taskEndTime FROM perch2_scheduled_tasks WHERE taskID='1533'
Looking up missing property taskEndTime
SELECT taskEndTime FROM perch2_scheduled_tasks WHERE taskID='1532'
Looking up missing property taskEndTime
SELECT taskEndTime FROM perch2_scheduled_tasks WHERE taskID='1531'
Looking up missing property taskEndTime
SELECT taskEndTime FROM perch2_scheduled_tasks WHERE taskID='1530'
Looking up missing property taskEndTime
SELECT taskEndTime FROM perch2_scheduled_tasks WHERE taskID='1529'
Queries: 27
Memory: 2.019

I've no idea whether that's helpful or not.

Thanks for the help, I'll let you know if I find anything else.

Cheers,
CDD Nation

CDD Nation 0 points

5 years ago

Quick update, it doesn't seem to be able to run the to_array method on line 35 of PerchBase.class.php, for whatever reason. That's as far as I can trace it.

}else{
    PerchUtil::debug('Looking up missing property ' . $method, 'notice');
    $array = $this->to_array();
    ...

Whether it's meant to be running this else block , in this context, I'm not sure.

Thanks,
CDD Nation

CDD Nation 0 points

5 years ago

Right! I've found Xdebug and it gives some more details:

Fatal error: Maximum function nesting level of '500' reached, aborting!

...PerchScheduledTasks->run() is called...

4   0.5048  5076904 import_jobs( )                              
    ../PerchScheduledTasks.class.php:80

5   0.6392  5454104 ImportApp->downloadJobs( )                              
    ../scheduled_tasks.php:134

6   2.4952  5468016 ImportApp->processExternalJobs( )                               
    ../ImportApp.php:68

7   2.4986  5479080 CustomCategories->get( )                                
    ../ImportApp.php:161

8   2.6024  5686400 PerchCategories_Category->update( )                             
    ../CustomCategories.php:65

9   2.6043  5741648 PerchCategories_Category->update_meta( )                                
    ../PerchCategories_Category.class.php:15

10  2.6043  5741864 catParentID ( )                             
    ../PerchCategories_Category.class.php:44

11  2.6043  5742048 PerchBase->__call( )                                
    ../PerchCategories_Category.class.php:44

12  2.6044  5743264 PerchCategories_Category->to_array( )                               
    ../PerchBase.class.php:36

13  2.6045  5745016 PerchCategories_Category->catDepth( )                               
    ../PerchCategories_Category.class.php:122

14  2.6045  5745184 catTreePosition ( )                             
    ../PerchCategories_Category.class.php:94

15  2.6045  5745368 PerchBase->__call( )                                
    ../PerchCategories_Category.class.php:94

16  2.6046  5746600 PerchCategories_Category->to_array( )                       
    ../PerchBase.class.php:36   

17  2.1007  5748808 PerchCategories_Category->catDepth( )                               
    ../PerchCategories_Category.class.php:122

18  2.1007  5748976 catTreePosition ( )                             
    ../PerchCategories_Category.class.php:94

19  2.1007  5749160 PerchBase->__call( )                                
    ../PerchCategories_Category.class.php:94

20  2.1008  5750392 PerchCategories_Category->to_array( )                           
    ../PerchBase.class.php:36   


...and so on for 500 rows, until it aborts.

Hope this helps.

Thanks,
Drew McLellan

Drew McLellan 2638 points
Perch Support

5 years ago

It's running into an infinite loop. I'll get it fixed for 2.8.19.

The to_array() method is calling __call() which is calling to_array() ...
Drew McLellan

Drew McLellan 2638 points
Perch Support

5 years ago

2.8.19 is now available.
CDD Nation

CDD Nation 0 points

5 years ago

Thanks Drew,

All fixed!