Ceph is an open source distributed storage solution. This presentation shows the implementation of Persistent Write Log Cache(PWL cache) at Ceph client side to handle burst writes to reduce backend pressure. PWL cache is a kind of Write Back Cache, but it leverages log to ensure the I/O order. Compared with the traditional volatile cache, PWL cache persists the data to Persistent memory (PMEM). In order to prevent data loss caused by abnormal conditions, we implement Replication for PWL. Through RDMA technology, we can replicate data to the remote side unilaterally with minimum overhead.
Bonus Content
Off
PDF Presentation
Presentation Type
Presentation
Learning Objectives
- Persistent Write Log Cache(PWL cache)
- write back cache
- Client side PMEM
- RDMA replication
Display Order
26
Start Date/Time
End Date/Time
YouTube Video ID
mBmOYrXN9NA
Zoom Meeting Completed
Off
Main Speaker / Moderator
Track
Room Location
Salon V
Webform Submission ID
459