tarantool / tarantool/doc

Mention that temp and local spaces can be truncated in ro mode

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CSS
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15
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49
Avg merge
1d 13h
Merged PRs (30d)
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Description

DML operations on temporary and local spaces can be performed even if the instance is in the read-only mode, but DDL operations (such as alter) are forbidden in this case^1. Technically, truncate is a DDL operation so initially it was forbidden as well. However, it should be safe to perform this operation on a temporary or local space because logically it only modifies the data stored in the space (like DML) and it isn't replicated (see tarantool/tarantool#4263). So starting from Tarantool 2.11.1 we allow users to truncate temporary spaces in the read-only mode.

Requested by @locker in https://github.com/tarantool/tarantool/commit/054526ac8472d005ae7468774f06290597278a1d.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Locate the replication and read-only documentation page linked in the issue, then review the section describing DML and DDL on temporary and local spaces. Update the relevant explanation to cover the read-only truncation behavior introduced in Tarantool 2.11.1, and verify the documentation build and referenced links.

Written by the indexing model from the issue text.

Assessment

Domain
documentation
Issue type
Documentation
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
52/100

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