[SSHD-823] Retrieving a directy listing of a directory containing a large number of files is very slow.

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Won't Fix
• Affects Version/s: 1.6.0, 1.7.0
• Labels: directory-listing perfomance ssh_fxp_name
• Assignee: Unassigned
• Reporter: Mark Ebbers
• Created: 07/May/18 11:39
• Updated: 07/May/18 16:17
• Resolved: 07/May/18 16:17

Description

Retrieving a directy listing of a directory containing a large number of files is very slow.

The method SftpSubSystem.doReaddir() uses a fixed maximum packet size of the returned SSH_FXP_NAME packets of 16*1024 bytes. Defined by the constant DEFAULT_MAX_READDIR_DATA_SIZE. It is possible to override this constant by setting the property MAX_READDIR_DATA_SIZE_PROP for that session.

Would it not be better to dynamicly calculate the maximum SSH_FXP_NAME packet size based on MAX_PACKET_SIZE?