Memory leak in Firebird 3 on implicit transaction
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Key: DNET-743
URL: http://tracker.firebirdsql.org/browse/DNET-743
Project: .NET Data provider
Issue Type: Bug
Components: ADO.NET Provider
Affects Versions: 5.8.0.0
Environment: Firebird: 3.0.1.32609, .NET Provider: 5.8, .NET 4.6, Win 10 x64
Reporter: Alexander Lipatov
Assignee: Jiri Cincura
Implicit transactions in Firebird 3 cause a massive memory leak on the server part.
It is detected only on Firebird 3.
If transaction is performed manually the memory leak is not happened.
Example:
var connection = new FbConnection(connectionString);
connection.Open();
while (true)
{
using (var cmd = connection.CreateCommand())
{
cmd.CommandText = "SELECT * FROM TABLE_NAME";
cmd.ExecuteNonQuery();
}
}
I fixed this issue as follows:
The calls isc_commit_transaction and isc_dsql_free_statement was swapped.
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