Details
Minor Description
We found that some devices would not load the inventory page, the web interface would error out with a PHP memory exceed message.
After looking at the table, we found some entries where entPhysicalContainedIn is its own grandparent. Removing the device and rerunning the discovery did not resolve it.
+----------------+---------------+------------------+------------------------+------------------+-----------------+
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| entPhysical_id | inventory_mib | entPhysicalIndex | entPhysicalContainedIn | entPhysicalDescr | entPhysicalName |
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+----------------+---------------+------------------+------------------------+------------------+-----------------+
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| 2915 | NETAPP-MIB | 1 | 0 | N6240 | Chassis |
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| 2916 | NETAPP-MIB | 0 | 1 | Disk Enclosure | Disk Enclosure |
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| 2917 | NETAPP-MIB | 257 | 0 | Power Supply 1 | Power Supply 1 |
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| 2918 | NETAPP-MIB | 258 | 0 | Power Supply 2 | Power Supply 2 |
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| 2919 | NETAPP-MIB | 259 | 0 | Power Supply 3 | Power Supply 3 |
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| 2920 | NETAPP-MIB | 260 | 0 | Power Supply 4 | Power Supply 4 |
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+----------------+---------------+------------------+------------------------+------------------+-----------------+
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As a workaround, we limited the max depth, which allowed the inventory page for those affected devices to load.
Index: html/includes/print/inventory.inc.php
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===================================================================
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--- html/includes/print/inventory.inc.php (revision 13568)
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+++ html/includes/print/inventory.inc.php (working copy)
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@@ -442,7 +442,7 @@
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echo($text);
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$count = dbFetchCell("SELECT COUNT(*) FROM `entPhysical` WHERE `device_id` = ? AND `entPhysicalContainedIn` = ?", [$device['device_id'], $ent['entPhysicalIndex']]);
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- if ($count) {
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+ if ($count && $level < 4) {
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echo("<ul>");
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print_ent_physical($ent['entPhysicalIndex'], $level + 1, '');
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echo("</ul>");
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Not sure what the fix should be -
it could be in the discovery, MIB, device firmware bug, or logic in the inventory print code to break out if the entPhysicalContainedIn ID references a previously visited ID or is too deeply nested.