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docs/tasks/order_archive.md

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+## Archive and delete cancelled orders without any trade older than one week
+
+This job archives orders that were cancelled more than a week ago and didn't produce any trade.
+Those orders are stored in the archive database and cleaned up from the main database.
+
+### Prerequisites
+
+* Deploy archive database
+* Configure database.yml (archive_db section) 
+
+For process order archive job:
+
+```bash
+bundle exec rake job job:order:archive
+```
+
+New DB Job record:
+
+| Column | Value |
+|--------|-------|
+| id | 10 |
+| name | archive_orders |
+| pointer | 1607603942 |
+| counter | 6674 |
+| data | nil |
+| error_code | 0 |
+| error_message | nil |
+| started_at | Thu 10 Dec 2020 13:39:02 CET +01:00 |
+| finished_at | Thu 10 Dec 2020 13:39:28 CET +01:00 |