[IGNITE-17971] Nullptr access in thin c++ client in OnConnectionClosed

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.14
• Component/s: clients

Environment

Windows, Visual Studio 2019

Language

C++

• Assignee: Unassigned
• Reporter: Christopher Tenter
• Created: 25/Oct/22 13:18
• Updated: 29/Nov/22 12:08
• Resolved: 29/Nov/22 12:08

Description

Occasionally, starting a transaction in the c++ thin client takes a long time and then a nullptr access crashes the program. This usually happens after idling an ignite cluster for a few hours. The cluster consists of only two nodes that have two replicated caches.

 

The nullptr access happens in data_router.cpp DataRouter::OnConnectionClosed(): at this line: channel.Get()->FailPendingRequests(err);

 

channel.Get() is a nullptr.

Issue Links

• duplicates: IGNITE-17922 C++ Thin: SIGSEGV on connection closed