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The default transaction lock is `deferred`. This means that the transaction will automatically become read or write transaction based on the first DB operation. In case the first operation is `SELECT` the transaction becomes read transaction, otherwise write transaction. When a read transaction tries to write the DB sqlite will promote the transaction to a write transaction if there is no other transaction that holds a lock. When the promotion fails `database is locked` error is returned. The error is returned immediately and does not use the busy handler. In our case almost all read transaction would fail with `database is locked` error. This fix is changing the default transaction lock to `IMMEDIATE`. It translates to `BEGIN IMMEDIATE` instead of `BEGIN`. In this mode, the transaction will be created as a write transaction no matter what DB operation will run as part of the transaction. The write transaction will try to obtain the DB lock immediately when `BEGIN IMMEDIATE` is called and the busy handler is used when the DB is locked by other transaction. Fixing: https://github.com/status-im/status-desktop/issues/10838
Status bindings for go-ethereum
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