1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
# Table of Contents
1. Disk Filesystems - [video](https://youtu.be/kD3A_vpVfNk) - [slides](https://www.slideshare.net/PranithKarampuri/glusterfs-session-1-disk-filesystems)
This session covers the concepts of disk filesystems that are important to understand glusterfs.
2. 1 Layer above Disk Filesystems(Posix) - [video](https://youtu.be/eNoargRqOHQ) - [slides](https://www.slideshare.net/PranithKarampuri/glusterfs-session-2-1-layer-above-disk-filesystems)
This session covers how posix xlator converts File Operations(FOPs) in glusterfs to system calls on the underlying disk filesystems.
Following internal data structures are discussed as part of the session.
- inode_t
- dentry_t
- fd_t
3. Xlator interface - [video](https://youtu.be/EnYAzpR336I) - [slides](https://www.slideshare.net/PranithKarampuri/gluster-dev-session-3-xlator-interface)
This session covers xlator interface in glusterfs which is how all functionality/modules are divided into in glusterfs.
4. Programming Model - [video](https://youtu.be/tmSpZT2nAVo) - [slides](https://www.slideshare.net/PranithKarampuri/glusterfs-session-4-call-frame-and-programming-model-247038588)
This session covers programming model used in glusterfs along with the data structures used to achieve it.
5. inode_t, fd_t lifecycles - [video](https://youtu.be/Sl7ZHYpDe14) - [slides](https://www.slideshare.net/PranithKarampuri/glusterfs-session-5-inode-t-fdt-lifecycles)
This session covers lifecycles of inode_t and fd_t data structures. Debugging ref leaks for these structures is also briefly covered.
6. Understanding Gluster's communication layer - [video](https://youtu.be/MkQSWvvNj-c) - [slides](https://www.slideshare.net/PranithKarampuri/gluster-dev-session-6-understanding-glusters-network-communication-layer)
This session covers Gluster's communication layer. How XDR is used to serialize/deserize data in rpc calls from pov of both client and server xlators.
7. Client-Server interactions - [video](https://youtu.be/jlQUPZYX3NE) - [slides](https://www.slideshare.net/PranithKarampuri/glusterfs-session-7-client-server-interactions)
Client, server interactions for connecting/disconnecting/reconnecting are covered in this session
8. Memory tracking in glusterfs, io-threads xlator - [video](https://youtu.be/0Ymz1ZYK4tc) - [slides](https://www.slideshare.net/PranithKarampuri/glusterfs-session-8-memory-tracking-infra-iothreads)
- Memory tracking infra and how statedumps are used to debug memory leaks is covered
- io-threads xlator implementation is covered.
9. Index xlator - [video](https://youtu.be/WYQKsNYXmrM) - [slides](https://www.slideshare.net/PranithKarampuri/glusterfs-session-9-index-xlator)
Index xlator design and implementation are covered in this session.
10. Locks xlator inodelks - [video](https://youtu.be/1AIMbxmAKwc) - [slides](https://www.slideshare.net/PranithKarampuri/glusterfs-session-10-locks-xlator-inodelks)
- Gives brief introduction about the purpose of this xlator
- Introduces and code walkthrough of inodelk part of locks xlator
11. Locks xlator entrylks - [video](https://youtu.be/BCgm5hNWFbE) - [slides](https://www.slideshare.net/PranithKarampuri/glusterfs-session-11-locks-xlator-entrylks)
- Introduces and code walkthrough of entrylk part of locks xlator
- Explains the connection between entrylk and inodelk in deletion code paths
12. Locks xlator posixlk - [video](https://youtu.be/E7J_W50iRDw) - [slides](https://www.slideshare.net/PranithKarampuri/glusterfs-session-12-locks-xlator-posixlk)
- What is the behavior of posixlks
- Code walkthrough
13. Replication xlator introduction - [video](https://youtu.be/cW4CHLHf_jY) - [slides](https://www.slideshare.net/PranithKarampuri/glusterfs-session-13-replication-introduction)
- Replicate xlator graph placement
- On-disk data representation
- On-disk data manipulation with xattrop
- Common functioning of fops
- Lookup
- Open
- readdir/readdirp
- Flush
- Statfs
14. Replication update transaction - [video](https://youtu.be/ku6nF7WWHh8) - [slides](https://www.slideshare.net/PranithKarampuri/glusterfs-session-14-replication-update-fops)
- Update transaction
- Data/Metadata operation
- Optimizations to reduce the network communication
15. Replication optimizations & Read transaction - [video](https://youtu.be/dZq8J_bsDAY) - [slides](https://www.slideshare.net/PranithKarampuri/glusterfs-session-15-replication-read-transactions)
- read transaction
- Handling of faults by the transaction
- Load balancing strategies
16. Self heal daemon of replication - [video](https://youtu.be/CnDw1uosGiI) - [slides](https://www.slideshare.net/PranithKarampuri/glusterfs-session-16-selfheal-daemon-for-replication)
- Intro to self-heal daemon (shd)
- Types of crawls in shd
- Code walkthrough
17. Self heal daemon - data, metadata, entry self-heals - [video](https://youtu.be/aiBFO_ggSVA) - [slides](https://www.slideshare.net/PranithKarampuri/glusterfs-session-17-self-heal-daemon-data-metadata-entry-healing)
- Types of heal needed for a given file/directory
- Code walkthrough of data, metadata, entry self-heals
18. Intro to FUSE and its trade offs - [video](https://youtu.be/str7pR9sF-E) - [slides](https://www.slideshare.net/PranithKarampuri/glusterfs-session-18-intro-to-fuse-and-its-trade-offs)
- various parts of fuse code in the glusterfs source tree
- the story FUSE version macros tell
- the tale of FUSE and fuse (historical context, terminology)
- to libfuse or not to libfuse?
- FUSE proto breakdown
- mount and INIT
|
