Backport #3365 to 21.11.x #3434
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Previously segment paths were used in the manifest for the case when segments come from a different ntp revision than the current one (these segments could appear in the manifest for example after recovery). This lead to a lot of code that had to handle both cases for manifest keys (short names and full paths) and parsed these paths and assembled them back. By storing ntp revision id in segment_meta instead, we can eliminate all this code. Segment paths become opaque, as we don't have to parse them anywhere - we only generate them when we need to talk to cloud storage and that's it. (cherry picked from commit 7ddc0ff)
See redpanda-data#3272. To ensure that segments in the cloud storage are not overwritten by concurrent archivers running on different nodes, we append archiver term id as a suffix for segment paths. As raft guarantees that in each term there will be only one leader, this ensures segment path uniqueness. (cherry picked from commit 88a9935)
(cherry picked from commit 8cf6c12)
ztlpn
requested review from
dotnwat,
ivotron,
Lazin,
LenaAn,
mmaslankaprv,
NyaliaLui and
VadimPlh
as code owners
|
test failure looks like an instance of #3277 |
Lazin
approved these changes
Jan 11, 2022
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Backports:
Cover letter
Fixes #3272
To ensure that segments in the cloud storage are not overwritten by concurrent archivers running on different nodes, we append archiver term id as a suffix for segment paths. As raft guarantees that in each term there will be only one leader, this ensures segment path uniqueness.
Release notes
Bug fixes