PSMDB-1284 Doc: File copy based initial sync #912
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new file: docs/initial-sync.md modified: docs/psmdb-pro.md modified: mkdocs-base.yml
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Addressed comments Added a high-level workflow Added confog parameters description Added limitations to not send users to upstream docs
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igorsol
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Co-authored-by: radoslawszulgo <[email protected]>
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I'd change the file name to fcbis-initial-sync.md or something. As there's also logical initial sync - the name of the file (and the URL) might be misleading. |
docs/initial-sync.md
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| * Don't run backups on either sync source or syncing nodes | ||
| * Don't write to the `local` database on the syncing node | ||
| * You cannot use the same sync source for multiple target nodes simultaneously because only one backup cursor can exist at any moment. | ||
| * If you're using encrypted storage, Percona Server for MongoDB applies the encryption key from the sync source node to secure the data on the syncing node. |
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Please add initial sync doesn't work for in-memory storage engine
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Percona Memory Engine?
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| When a new member joins the replica set, it receives the data from the existing replica set node via the initial sync. | ||
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| In Percona Server for MongoDB, you can choose a file copy-based initial sync for a new node. You must have WiredTiger defined as the storage. |
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| In Percona Server for MongoDB, you can choose a file copy-based initial sync for a new node. You must have WiredTiger defined as the storage. | |
| In Percona Server for MongoDB, you can choose a file copy-based initial sync for a new node. |
| | `fileBasedInitialSyncMaxLagSec` | integer | 300 | Specifies the max lag in seconds between the syncing node and the sync source to mark the file copy based initial sync as done successfully | | ||
| | `fileBasedInitialSyncMaxCyclesWithoutProgress` | integer | 3 | Specifies the max number of cycles to clone updates while the lag between the syncing node and the sync source is higher than `fileBasedInitialSyncMaxLagSec` | | ||
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I'd appreciate a full configuration example with all the options
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I agree that its is enough to list parameters with descriptions. By default FCBIS should work with default parameters. Only dbadmins with good understanding of the topic should try to alter those parameters. I assume they know how to put parameter into config file.
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new file: docs/initial-sync.md
modified: docs/psmdb-pro.md
modified: mkdocs-base.yml