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Vladimir Davydov authored
We disable system space triggers to generate a bootstrap snapshot,
but this doesn't turn off space format checks. As a result, if
a space format is updated during the upgrade sequence, it may turn
out that data inserted earlier doesn't match the new format.
We encountered this issue only once, when we added new fields to
the _func system space, see commit 200a492a ("box: introduce Lua
persistent functions"). Back then, we simply added the new fields
to the earlier update function. However, modifying the update history
looks ugly. We're planning to add new fields to the _user system
space so we should find a way to avoid that.

The fix is simple: we clear all system space formats before disabling
system space triggers and reset them back after the bootstrap is done.
To achieve that, we have to eliminate usage of any functions that access
tuple fields by name.

Needed for https://github.com/tarantool/tarantool-ee/issues/298
Needed for https://github.com/tarantool/tarantool-ee/issues/299

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Tarantool

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Tarantool is an in-memory computing platform consisting of a database and an application server.

It is distributed under BSD 2-Clause terms.

Key features of the application server:

Key features of the database:

  • MessagePack data format and MessagePack based client-server protocol.
  • Two data engines: 100% in-memory with complete WAL-based persistence and an own implementation of LSM-tree, to use with large data sets.
  • Multiple index types: HASH, TREE, RTREE, BITSET.
  • Document oriented JSON path indexes.
  • Asynchronous master-master replication.
  • Synchronous quorum-based replication.
  • RAFT-based automatic leader election for the single-leader configuration.
  • Authentication and access control.
  • ANSI SQL, including views, joins, referential and check constraints.
  • Connectors for many programming languages.
  • The database is a C extension of the application server and can be turned off.

Supported platforms are Linux (x86_64, aarch64), Mac OS X (x86_64, M1), FreeBSD (x86_64).

Tarantool is ideal for data-enriched components of scalable Web architecture: queue servers, caches, stateful Web applications.

To download and install Tarantool as a binary package for your OS or using Docker, please see the download instructions.

To build Tarantool from source, see detailed instructions in the Tarantool documentation.

To find modules, connectors and tools for Tarantool, check out our Awesome Tarantool list.

Please report bugs to our issue tracker. We also warmly welcome your feedback on the discussions page and questions on Stack Overflow.

We accept contributions via pull requests. Check out our contributing guide.

Thank you for your interest in Tarantool!