[NX-2594] Possible server deadlock in network discovery

[netxms-migration-bot]

v 5.0.7 on Ubuntu 22

From Telegram support channel (21.08.24 09:24):

-- а есть строчки с текстом AcceptNewNodeStage2? Я вижу только AcceptNewNodeStage1
-- если нет, то похоже на deadlock в сервере
-- Таких строк нет

Thread dump attached

thread_dump.zip

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Migrated from track.radensolutions.com

• Original Issue: NX-2594
• Type: Bug
• State: Fixed
• Priority: Normal
• Subsystem: Server
• Created: 2024-09-23 12:29:16 UTC
• Updated: 2025-10-26 23:26:57 UTC
• Reporter: filipp.sudanov (@filippsudanov)
• Last Updated By: Victor Kirhenshtein (@2128506)

Attachments: 1 attachment(s) from YouTrack (not migrated)

[netxms-migration-bot]

Comment by Victor Kirhenshtein (@2128506) on 2025-10-26 23:00:59 UTC:

From the dump it looks like race condition on gethostbyaddr. To fix it should be replaced with getnameinfo or gethostbyaddr_r.