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design document: how database schema information is renewed #253

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Totktonada opened this issue Dec 23, 2021 · 0 comments · Fixed by #317
Closed

design document: how database schema information is renewed #253

Totktonada opened this issue Dec 23, 2021 · 0 comments · Fixed by #317
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documentation Improvements or additions to documentation

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Totktonada commented Dec 23, 2021 •
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It is not easy to deduce design decisions and reasons from the code, so I would like to see a document that would answer the following questions:

  • When and how the schema is reloaded.
  • Where it leans on built-in net.box schema reload and where it doesn't.
  • Which alternatives were considered and why they were declined?
  • The same questions about sharding key and sharding function information reload.

See the following discussion: #111.

See == conditions in schema.batching_result_needs_reload() and sharding.batching_result_needs_sharding_reload() from PR #232.

NB: net.box space objects can update in background, correct? So we can flatten an object using an old schema, receive the new space hash from the storage and compare it with the new schema on the router (because it was updated).
@Totktonada Totktonada added documentation Improvements or additions to documentation teamE labels Dec 23, 2021
@Totktonada Totktonada mentioned this issue Dec 23, 2021
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@Totktonada Totktonada mentioned this issue Feb 8, 2022
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@DifferentialOrange DifferentialOrange added 2sp and removed 2sp labels Aug 3, 2022
DifferentialOrange added a commit that referenced this issue Aug 3, 2022
@DifferentialOrange
doc: describe schema reload implementation
2ce9fe6 
This patch adds a small document describing how space and sharding
schemas works in the module. It covers what schemas are, how we store,
use and reload them in requests.

Closes #253
@DifferentialOrange DifferentialOrange mentioned this issue Aug 3, 2022
Merged
1 task
DifferentialOrange added a commit that referenced this issue Aug 3, 2022
@DifferentialOrange
doc: describe schema reload implementation
e381557 
This patch adds a small document describing how space and sharding
schemas works in the module. It covers what schemas are, how we store,
use and reload them in requests.

Closes #253
DifferentialOrange added a commit that referenced this issue Aug 12, 2022
@DifferentialOrange
doc: describe schema reload implementation
9cfb4cf 
This patch adds a small document describing how space and sharding
schemas works in the module. It covers what schemas are, how we store,
use and reload them in requests.

Closes #253
DifferentialOrange added a commit that referenced this issue Aug 12, 2022
@DifferentialOrange
doc: describe schema reload implementation
81264b6 
This patch adds a small document describing how space and sharding
schemas works in the module. It covers what schemas are, how we store,
use and reload them in requests.

Closes #253
DifferentialOrange added a commit that referenced this issue Aug 12, 2022
@DifferentialOrange
doc: describe schema reload implementation
1207c1d 
This patch adds a small document describing how space and sharding
schemas works in the module. It covers what schemas are, how we store,
use and reload them in requests.

Closes #253
DifferentialOrange added a commit that referenced this issue Aug 12, 2022
@DifferentialOrange
doc: describe schema reload implementation
099f6ab 
This patch adds a small document describing how space and sharding
schemas works in the module. It covers what schemas are, how we store,
use and reload them in requests.

Closes #253
DifferentialOrange added a commit that referenced this issue Aug 15, 2022
@DifferentialOrange
doc: describe schema reload implementation
7c4e638 
This patch adds a small document describing how space and sharding
schemas works in the module. It covers what schemas are, how we store,
use and reload them in requests.

Closes #253
DifferentialOrange added a commit that referenced this issue Aug 15, 2022
@DifferentialOrange
doc: describe schema reload implementation
99b7e1d 
This patch adds a small document describing how space and sharding
schemas works in the module. It covers what schemas are, how we store,
use and reload them in requests.

Closes #253
DifferentialOrange added a commit that referenced this issue Aug 15, 2022
@DifferentialOrange
doc: describe schema reload implementation
f37ffab 
This patch adds a small document describing how space and sharding
schemas works in the module. It covers what schemas are, how we store,
use and reload them in requests.

Closes #253
DifferentialOrange added a commit that referenced this issue Aug 15, 2022
@DifferentialOrange
doc: describe schema reload implementation
724604e 
This patch adds a small document describing how space and sharding
schemas works in the module. It covers what schemas are, how we store,
use and reload them in requests.

Closes #253
DifferentialOrange added a commit that referenced this issue Aug 15, 2022
@DifferentialOrange
doc: describe schema reload implementation
f6a4f9f 
This patch adds a small document describing how space and sharding
schemas works in the module. It covers what schemas are, how we store,
use and reload them in requests.

Closes #253
DifferentialOrange added a commit that referenced this issue Aug 15, 2022
@DifferentialOrange
doc: describe schema reload implementation
5061fe8 
This patch adds a small document describing how space and sharding
schemas works in the module. It covers what schemas are, how we store,
use and reload them in requests.

Closes #253
DifferentialOrange added a commit that referenced this issue Aug 16, 2022
@DifferentialOrange
doc: describe schema reload implementation
f707f65 
This patch adds a small document describing how space and sharding
schemas works in the module. It covers what schemas are, how we store,
use and reload them in requests.

Closes #253
DifferentialOrange added a commit that referenced this issue Aug 17, 2022
@DifferentialOrange
doc: describe schema reload implementation
b7ca5c9 
This patch adds a small document describing how space and sharding
schemas works in the module. It covers what schemas are, how we store,
use and reload them in requests.

Closes #253
DifferentialOrange added a commit that referenced this issue Aug 17, 2022
@DifferentialOrange
doc: describe schema reload implementation
ddfc251 
This patch adds a small document describing how space and sharding
schemas works in the module. It covers what schemas are, how we store,
use and reload them in requests.

Closes #253
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doc: describe schema reload implementation tarantool/crud
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