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1 Commits (1f5517e7620f9a37bdbe9842efc48271e36c0e57)

Author	SHA1	Message	Date
Erick Birbe	d8ffe2087d	[ADD] ir_sequence_standard_default: Use Standard instead No Gap sequence Set the implementation to "Standard" in all your current Sequences (ir.sequence) and all new sequences are created as "Standard" by default instead of "No Gap" implementation. **What's the problem Sequences with "No Gap" Implementation?** "No Gap" is the default value of sequences in Odoo. However, this kind of sequences cause more locks and can turn a database slow. Taking as example an invoice, if you assign an invoice number to one record, but it sill not finish the process, this process must end in order to another invoice could assign a new number and there was no gaps between the invoice numbers. It seems to be good at first sight. But the problem start when there is and chained process. Imagine that there is one user that executes a process that produces 100 invoices and these at the same time produces 100 journal entries that also use a consecutive (no gap) sequence. And also those invoices are sent to sign with and external institution (that could take 2 seconds in giving a response because of internet latency or server load), and maybe they made another calculations that makes them to take 5 seconds more for each invoice, and all this is chained to one single transaction. This means that for 8.5 minutes anybody else could confirm invoices, neither journal entries of the involved journals. Now, think there is 20 users that have to execute a similar process. The problem turns exponential. If another user comes to make an operation with the same jornal it will thrown a concurrency failure. You can mitigate it if you segment each transaction and don't chain them. It means, making commit for each invoice or process. It reduces the probability that there is a concurrency error or a lock wait. However, it still not solve it completely. **Why to use Sequences with "Standard" Implementation?** If you use the standard sequence of PosgreSQL, it doesn't lock because at the moment the request is done, the next sequence number it is changed in an isolated transaction, and it have not to wait the other transaction to end. However, if the transaction produces a rollback, this sequence isn't reverted, it means, it's lost. It may be not not serious because when you cancel or remove records that number is lost too. **What this module does?** To eliminate completely that concurrency/slowness problem, this module changes all the sequences (ir.sequence) implementation from "No Gap" to "Standard" with the awareness that it will skip numbers. In the majority of database models and many users projects there is no problem with that jump occurs. Also, all newly created sequences will be by default in "Standard" implementation.	5 years ago
Erick Birbe	0c2c38624a	[ADD] attachment_unindex_content: Module to disable file indexation This module is intended to disable the indexation of data on the ir.attachment model. Attachment model has a field called 'index_content' where the content of the attachment is read and stored directly in the database. This field is useful in order to search content of a file. But most of cases it is not used, so, you can install this module in order to: - **Avoid Duplicating Data:** Because indexation extracts text content from files and put it on the database in order it could be searched, but this implies you have the file data in your `filestore` directory, and also part (or sometimes all) of that data in your database too. - **Improve Performance:** Since not all indexed files are plain text, they require extra process to read them. Maybe you could try to uninstall modules like `document` in order to disable its indexation features, but you could face the uninstallation of other modules that could be useful for you (e.g, `hr_recruitment` depends on that). But even if you don't have `document` installed, you'd still have plain text content indexation by default. Using this module you will not require to uninstall any module to disable the attachment content indexation, because we directly disable it at `ir.attachment` base.	5 years ago