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Key: CORE-5780
Type: Bug Bug
Status: Closed Closed
Resolution: Fixed
Priority: Major Major
Assignee: Alexander Peshkov
Reporter: Alexander Peshkov
Votes: 0
Watchers: 2
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Firebird Core

Server hangs when client tries to send too long DB encryption key(s)

Created: 19/Mar/18 03:10 PM   Updated: 25/Mar/18 09:37 AM
Component/s: None
Affects Version/s: 4.0 Initial, 3.0.0, 3.0.1, 3.0.2, 4.0 Alpha 1, 3.0.3
Fix Version/s: 3.0.4, 4.0 Beta 1

QA Status: Cannot be tested


 Description  « Hide
When client sends to the server more data than fits into single network packet used for such transfers async send fails.

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Sean Leyne added a comment - 19/Mar/18 06:50 PM - edited
Is the issue really about network "packet" (which is controlled by MTU settings -- default = 1500 bytes)? Or, about the size of the TCP buffer that FB allocates for sending/receiving msgs from the server?

Alexander Peshkov added a comment - 20/Mar/18 08:44 AM
About the size of the TCP buffer that FB allocates for sending/receiving msgs, i.e. TcpRemoteBufferSize.
But it does not matter for committed fix - as soon as server detects fragmented packet in async receiver it drops that attachment.