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Fix the markdown rendering on 004-durability.md RFC

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This commit is contained in:
chaitanya sharma
2022-05-15 04:17:28 +05:30
committed by Heikki Linnakangas
parent 85b5c0e989
commit bea84150b2
1 changed files with 9 additions and 9 deletions
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18
docs/rfcs/004-durability.md
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@@ -22,7 +22,7 @@ In addition to the WAL safekeeper nodes, the WAL is archived in
S3. WAL that has been archived to S3 can be removed from the
safekeepers, so the safekeepers don't need a lot of disk space.
```
+----------------+
+-----> | WAL safekeeper |
| +----------------+
@@ -42,23 +42,23 @@ safekeepers, so the safekeepers don't need a lot of disk space.
\
\
\
\ +--------+
\ | |
+--> | S3 |
| |
+--------+
\ +--------+
\ | |
+------> | S3 |
| |
+--------+
```
Every WAL safekeeper holds a section of WAL, and a VCL value.
The WAL can be divided into three portions:
```
VCL LSN
| |
V V
.................ccccccccccccccccccccXXXXXXXXXXXXXXXXXXXXXXX
Archived WAL Completed WAL In-flight WAL
```
Note that all this WAL kept in a safekeeper is a contiguous section.
This is different from Aurora: In Aurora, there can be holes in the