<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[ReadPersistentStorage() if key not exist]]></title><description><![CDATA[<p dir="auto">According to the documentation, <a href="https://www.netxms.org/documentation/nxsl-3.0/#func-readpersistentstorage" rel="nofollow ugc">ReadPersistentStorage()</a> is suppose to return null if key does not exist but it seems to be returning an empty string ("") for a recently deleted (This is all happening within EPP) Persistent Storage value.</p>
<p dir="auto">Is this a bug?</p>
]]></description><link>https://forum.netxms.org/topic/6655/readpersistentstorage-if-key-not-exist</link><generator>RSS for Node</generator><lastBuildDate>Fri, 13 Nov 2026 12:49:52 GMT</lastBuildDate><atom:link href="https://forum.netxms.org/topic/6655.rss" rel="self" type="application/rss+xml"/><pubDate>Thu, 20 Aug 2020 04:45:51 GMT</pubDate><ttl>60</ttl><item><title><![CDATA[Reply to ReadPersistentStorage() if key not exist on Fri, 21 Aug 2020 12:30:39 GMT]]></title><description><![CDATA[<p dir="auto">It's a known bug - <a href="https://track.radensolutions.com/issue/NX-1897" rel="nofollow ugc">https://track.radensolutions.com/issue/NX-1897</a>. Fixed in 3.4.284.</p>
<p dir="auto">Best regards,<br />
Victor</p>
]]></description><link>https://forum.netxms.org/post/28454</link><guid isPermaLink="true">https://forum.netxms.org/post/28454</guid><dc:creator><![CDATA[victor]]></dc:creator><pubDate>Fri, 21 Aug 2020 12:30:39 GMT</pubDate></item><item><title><![CDATA[Reply to ReadPersistentStorage() if key not exist on Thu, 20 Aug 2020 13:16:40 GMT]]></title><description><![CDATA[<p dir="auto">So you are deleting also from EPP?<br />
If you are deleting from NXSL, do you delete like this:<br />
WritePersistentStorage("key1", NULL);</p>
]]></description><link>https://forum.netxms.org/post/28448</link><guid isPermaLink="true">https://forum.netxms.org/post/28448</guid><dc:creator><![CDATA[Filipp Sudanov]]></dc:creator><pubDate>Thu, 20 Aug 2020 13:16:40 GMT</pubDate></item></channel></rss>