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Diffstat (limited to 'guix/store/database.scm')
| -rw-r--r-- | guix/store/database.scm | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/guix/store/database.scm b/guix/store/database.scm index e6bfbe763e..4791f49865 100644 --- a/guix/store/database.scm +++ b/guix/store/database.scm @@ -79,6 +79,15 @@ as specified by SQL-SCHEMA." create it and initialize it as a new database." (let ((new? (not (file-exists? file))) (db (sqlite-open file))) + ;; Turn DB in "write-ahead log" mode, which should avoid SQLITE_LOCKED + ;; errors when we have several readers: <https://www.sqlite.org/wal.html>. + (sqlite-exec db "PRAGMA journal_mode=WAL;") + + ;; Install a busy handler such that, when the database is locked, sqlite + ;; retries until 30 seconds have passed, at which point it gives up and + ;; throws SQLITE_BUSY. + (sqlite-exec db "PRAGMA busy_timeout = 30000;") + (dynamic-wind noop (lambda () (when new? |