Project

General

Profile

Edit History

Wiki » Development »

CephFS Code Walkthroughs » History » Version 64

Venky Shankar, 03/25/2024 04:20 AM

1 1 Mike Perez 
h1. CephFS Code Walkthroughs
2 





    3
    2
    Patrick Donnelly
    
The CephFS Code Walkthrough meetings will be used to establish a durable knowledge base for CephFS developers.





    4
    1
    Mike Perez
    





    5
    62
    Patrick Donnelly
    
This weekly meeting will occur every *Monday at 9 AM EDT* at: https://meet.jit.si/cephfs-code-walkthroughs





    6
    1
    Mike Perez
    





    7
    61
    Patrick Donnelly
    
* "Ceph Community calendar": https://ceph.io/contribute/#community-calendar





    8
    
    
    
* "Google Calendar": https://calendar.google.com/calendar/b/1?cid=OXRzOWM3bHQ3dTF2aWMyaWp2dnFxbGZwbzBAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ





    9
    
    
    
* "iCal": https://calendar.google.com/calendar/ical/9ts9c7lt7u1vic2ijvvqqlfpo0%40group.calendar.google.com/public/basic.ics





    10
    1
    Mike Perez
    





    11
    2
    Patrick Donnelly
    
Developers may pick a topic from the below list or create their own.





    12
    1
    Mike Perez
    





    13
    2
    Patrick Donnelly
    
h2. Scheduled Topics





    14
    52
    Patrick Donnelly
    





    15
    64
    Venky Shankar
    
* 2024-03-25: Patrick: Monitor upgrades - sequence and handling feature compat





    16
    60
    Patrick Donnelly
    
* 2023-06-12: Patrick: minor log segments (rescheduled due to recording uncertainty)





    17
    1
    Mike Perez
    





    18
    59
    Patrick Donnelly
    





    19
    2
    Patrick Donnelly
    
h2. Open Topics





    20
    1
    Mike Perez
    





    21
    17
    Jeff Layton
    
* High-level Overview of the MDS (overall design, function and flow)





    22
    2
    Patrick Donnelly
    
* Capability Revoke





    23
    
    
    
* Capability Grant





    24
    3
    Patrick Donnelly
    
* cephfs-data-scan





    25
    
    
    
* MDS Scrub





    26
    4
    Patrick Donnelly
    
* MDS path traversal





    27
    
    
    
* Client path traversal





    28
    5
    Patrick Donnelly
    
* MDS Balancer (!Migration)





    29
    1
    Mike Perez
    
* MDS Migrator





    30
    22
    Venky Shankar
    
* MDS Locker (break up as necessary, very large topic)





    31
    6
    Patrick Donnelly
    
* MDS MDCache rejoin





    32
    
    
    
* MDS MDCache resolve





    33
    7
    Patrick Donnelly
    
* MDS CDir (directory fragment)





    34
    
    
    
* MDS CDir Fragment/Merge





    35
    8
    Patrick Donnelly
    
* MDS Subtree management





    36
    
    
    
* MDS OpenFileTable





    37
    
    
    
* MDS <-> MDS messages





    38
    
    
    
* Client auth MDS picking for requests





    39
    
    
    
* MDS Journal on-disk format (cephfs-journal-tool examples)





    40
    
    
    
* MDS on-disk metadata format (CInode, CDir, CDentry)





    41
    9
    Patrick Donnelly
    
* rstats





    42
    10
    Patrick Donnelly
    
* MDS session map (reset too as part of disaster recovery)





    43
    11
    Patrick Donnelly
    
* MDSMap/FSMap





    44
    12
    Patrick Donnelly
    
* MDS journal trimming





    45
    1
    Mike Perez
    
* MDS Stray directory / hard link reintegration





    46
    12
    Patrick Donnelly
    
* MDS stats reporting (MDSPinger/MetricAggregator/MetricsHandler)





    47
    1
    Mike Perez
    
* MDS Context (within MDS and Ceph in-general)





    48
    
    
    
* osdc/Journaler





    49
    
    
    
* osdc/Filer + osdc/ObjectCacher





    50
    
    
    
* Snapshots





    51
    
    
    





    52
    
    
    
h2. Past Topics





    53
    
    
    





    54
    
    
    





    55
    59
    Patrick Donnelly
    
* 2022-05-16: Jeff: kernel client overview - https://www.youtube.com/watch?v=ecbtfgumG34





    56
    
    
    
* 2022-01-24: Patrick: fs:upgrade suite





    57
    
    
    
* 2021-11-22: Venky Shankar - MDS Locker, Part 2 - https://www.youtube.com/watch?v=Ah4H3apSvXw





    58
    
    
    
* 2021-11-15: Jeff Layton - kclient overview - https://www.youtube.com/watch?v=kXFsDwoRuyM





    59
    
    
    
* 2021-09-27: Patrick Donnelly - MDS Journal Machinery - https://www.youtube.com/watch?v=yB5JvIvZ764





    60
    
    
    
* 2021-08-09: Milind Changire - rstats https://www.youtube.com/watch?v=85lnSSfXkBk





    61
    
    
    
* 2021-07-26: Kotresh HR - MDS path traversal https://www.youtube.com/watch?v=dYJ84qpR0kY





    62
    
    
    
* 2021-07-19: Venky Shankar - MDS Locker, Part 1 https://www.youtube.com/watch?v=jkWJ6x_Bz-s





    63
    
    
    
* 2021-05-03: Patrick Donnelly - MDSMonitor https://www.youtube.com/watch?v=rUJZy-2jKOo





    64
    
    
    
* 2021-04-26: Venky Shankar - cephfs-mirror daemon part 2: https://www.youtube.com/watch?v=oMs7appb20s





    65
    
    
    
* 2021-04-19:  Venky Shankar - CephFS Mirroring https://www.youtube.com/watch?v=nZSN1zkSXSs