November 2021 - 389-devel - Fedora Mailing-Lists

by James Chapman

I have done some work on 389 ds connection management that I would appreciate the community's feedback on, you can find attached a draft patch for review. Problem statement Currently the connection table (CT) contains an array of established connections that are monitored for activity by a single process. As the number of established connections increase, so too does the overhead of monitoring these connections. The single process that monitors established connections for activity becomes a bottleneck, limiting the ability of the server to handle new connections. Solution One solution <https://github.com/389ds/389-ds-base/issues/4812> to this problem is to segment the CT into smaller portions, with each portion having a dedicated thread to monitor its connections. But, rather than divide the CT into smaller portions, the approach I prefered was to add multiple active lists to the CT, where each active list would have its own dedicated thread. Benefit With a single thread monitoring each CT active list, connections can be monitored in parallel, removing the bottleneck mentioned above. Instead of a single CT active list containing all established connections, there will be multiple CT active lists that share the total number of established connections between them. With this change I noticed a ~20% increase in the number of connections per second the server can handle. Opens I tested this change with 100, 500, 1k, 5k and 10k concurrent connections, I have found that having two CT active lists is the optimal config. I think we should hardcode the CT active list number to two and have it hidden from the user/sysadmin, or would it be better as a configurable parameter? Thanks Jamie

1 year, 5 months

4
15
0 / 0

Please review: dsctl tls list-ca may fail

by William Brown

https://github.com/389ds/389-ds-base/pull/5039 -- Sincerely, William Brown Senior Software Engineer, Identity and Access Management SUSE Labs, Australia

1 year, 6 months

1
0
0 / 0

Please review: remove useless trace logs

by William Brown

https://github.com/389ds/389-ds-base/pull/5026 -- Sincerely, William Brown Senior Software Engineer, Identity and Access Management SUSE Labs, Australia

1 year, 6 months

1
0
0 / 0

Please review: windows sync sigsegv

by William Brown

https://github.com/389ds/389-ds-base/pull/5027 https://github.com/389ds/389-ds-base/pull/5021 -- Sincerely, William Brown Senior Software Engineer, Identity and Access Management SUSE Labs, Australia

1 year, 6 months

1
0
0 / 0

please review: PR 5015 - UI - Add group creation to LDAP editor

by Mark Reynolds

https://github.com/389ds/389-ds-base/pull/5015 -- Directory Server Development Team

1 year, 6 months

1
0
0 / 0

please review: PR 5007 - UI - LDAP editor tree not being properly updated

by Mark Reynolds

https://github.com/389ds/389-ds-base/pull/5007 -- Directory Server Development Team

1 year, 6 months

1
0
0 / 0

please review: PR 5002 - UI - fix next round of bugs

by Mark Reynolds

https://github.com/389ds/389-ds-base/pull/5002 -- Directory Server Development Team

1 year, 6 months

1
0
0 / 0

please review: fix pid file handling in containers

by William Brown

https://github.com/389ds/389-ds-base/pull/4986 -- Sincerely, William Brown Senior Software Engineer, Identity and Access Management SUSE Labs, Australia

1 year, 6 months

1
0
0 / 0

Please review: oneline intypes.h

by William Brown

https://github.com/389ds/389-ds-base/pull/4983 -- Sincerely, William Brown Senior Software Engineer, Identity and Access Management SUSE Labs, Australia

1 year, 6 months

1
0
0 / 0

please review: PR 4981 - revert 'gecos' syntax to DirectoryString

by Thierry Bordaz

https://github.com/389ds/389-ds-base/pull/4981

1 year, 6 months

1
0
0 / 0

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389-devel November 2021