Commit message (Collapse) | Author | Age | Files | Lines | |
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* | Fix chain cover background update to work with split out event persisters ↵ | Erik Johnston | 2021-01-14 | 1 | -4/+6 |
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* | Make event persisters periodically announce position over replication. (#8499) | Erik Johnston | 2020-10-12 | 1 | -0/+2 |
| | | | | | Currently background proccesses stream the events stream use the "minimum persisted position" (i.e. `get_current_token()`) rather than the vector clock style tokens. This is broadly fine as it doesn't matter if the background processes lag a small amount. However, in extreme cases (i.e. SyTests) where we only write to one event persister the background processes will never make progress. This PR changes it so that the `MultiWriterIDGenerator` keeps the current position of a given instance as up to date as possible (i.e using the latest token it sees if its not in the process of persisting anything), and then periodically announces that over replication. This then allows the "minimum persisted position" to advance, albeit with a small lag. | ||||
* | Add logging on startup/shutdown (#8448) | Erik Johnston | 2020-10-02 | 1 | -3/+12 |
| | | | | | This is so we can tell what is going on when things are taking a while to start up. The main change here is to ensure that transactions that are created during startup get correctly logged like normal transactions. | ||||
* | Add checks for postgres sequence consistency (#8402) | Erik Johnston | 2020-09-28 | 1 | -2/+88 |
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* | Add functions to `MultiWriterIdGen` used by events stream (#8164) | Erik Johnston | 2020-08-25 | 1 | -1/+7 |
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* | Add some helper classes for generating ID sequences | Richard van der Hoff | 2020-07-16 | 1 | -0/+98 |