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image: Do not set journal_model=WAL for the Hurd. 

This fixes <https://bugs.gnu.org/42151>.

* gnu/system/images/hurd.scm (hurd-initialize-root-partition): Use #:wal-mode #f
in call to ...
* gnu/build/image.scm (initialize-root-partition): ... this, add #:wal-mode?
parameter, pass it to ...
(register-closure): ... this, add #:wal-mode? parameter, pass it to ...
* guix/store/database.scm (with-database): ... this, add #:wal-mode?
parameter, pass it to ...
(call-with-database): ... this, add #:wal-mode? parameter; when
set to #f, do not set journal_model=WAL.
master
Jan (janneke) Nieuwenhuizen 2020-07-03 23:45:20 +02:00
parent 1649c7d69a
commit 4b9eecd322
No known key found for this signature in database
GPG Key ID: F3C1A0D9C1D65273
3 changed files with 42 additions and 21 deletions
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14
gnu/build/image.scm
View File

@ -131,15 +131,18 @@ given CONFIG file."
(define* (register-closure prefix closure
#:key
(deduplicate? #t) (reset-timestamps? #t)
(schema (sql-schema)))
(schema (sql-schema))
(wal-mode? #t))
"Register CLOSURE in PREFIX, where PREFIX is the directory name of the
target store and CLOSURE is the name of a file containing a reference graph as
produced by #:references-graphs.. As a side effect, if RESET-TIMESTAMPS? is
true, reset timestamps on store files and, if DEDUPLICATE? is true,
deduplicates files common to CLOSURE and the rest of PREFIX."
deduplicates files common to CLOSURE and the rest of PREFIX. Pass WAL-MODE?
to call-with-database."
(let ((items (call-with-input-file closure read-reference-graph)))
(parameterize ((sql-schema schema))
(with-database (store-database-file #:prefix prefix) db
#:wal-mode? wal-mode?
(register-items db items
#:prefix prefix
#:deduplicate? deduplicate?
@ -164,6 +167,7 @@ deduplicates files common to CLOSURE and the rest of PREFIX."
(register-closures? #t)
system-directory
make-device-nodes
(wal-mode? #t)
#:allow-other-keys)
"Initialize the given ROOT directory. Use BOOTCFG and BOOTCFG-LOCATION to
install the bootloader configuration.
@ -171,7 +175,8 @@ install the bootloader configuration.
If REGISTER-CLOSURES? is true, register REFERENCES-GRAPHS in the store. If
DEDUPLICATE? is true, then also deduplicate files common to CLOSURES and the
rest of the store when registering the closures. SYSTEM-DIRECTORY is the name
of the directory of the 'system' derivation."
of the directory of the 'system' derivation. Pass WAL-MODE? to
register-closure."
(populate-root-file-system system-directory root)
(populate-store references-graphs root)
@ -184,7 +189,8 @@ of the directory of the 'system' derivation."
(register-closure root
closure
#:reset-timestamps? #t
#:deduplicate? deduplicate?))
#:deduplicate? deduplicate?
#:wal-mode? wal-mode?))
references-graphs))
(when bootloader-installer

8
gnu/system/images/hurd.scm
View File

@ -61,8 +61,12 @@
#~(lambda* (#:rest args)
(apply initialize-root-partition
(append args
(list #:make-device-nodes
make-hurd-device-nodes)))))
(list #:make-device-nodes make-hurd-device-nodes
;; XXX Creating a db.sqlite with journal_mode=WAL
;; yields "unable to open database file" on GNU/Hurd
;; for an sqlite with the hurd-locking-mode.patch;
;; see <https://bugs.gnu.org/42151>.
#:wal-mode? #f)))))
(define hurd-disk-image
(image

23
guix/store/database.scm
View File

@ -1,6 +1,7 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017, 2019 Caleb Ristvedt <caleb.ristvedt@cune.org>
;;; Copyright © 2018, 2020 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@ -20,6 +21,7 @@
(define-module (guix store database)
#:use-module (sqlite3)
#:use-module (guix config)
#:use-module (guix gexp)
#:use-module (guix serialization)
#:use-module (guix store deduplication)
#:use-module (guix base16)
@ -27,6 +29,7 @@
#:use-module (guix build syscalls)
#:use-module ((guix build utils)
#:select (mkdir-p executable-file?))
#:use-module (guix utils)
#:use-module (guix build store-copy)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-11)
@ -97,17 +100,20 @@ as specified by SQL-SCHEMA."
(sqlite-exec db (call-with-input-file schema get-string-all)))
(define (call-with-database file proc)
(define* (call-with-database file proc #:key (wal-mode? #t))
"Pass PROC a database record corresponding to FILE. If FILE doesn't exist,
create it and initialize it as a new database."
create it and initialize it as a new database. Unless WAL-MODE? is set to #f,
set journal_mode=WAL."
(let ((new? (and (not (file-exists? file))
(begin
(mkdir-p (dirname file))
#t)))
(db (sqlite-open file)))
;; Using WAL breaks for the Hurd <https://bugs.gnu.org/42151>.
(when wal-mode?
;; 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;")
(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
@ -200,10 +206,15 @@ prior to returning."
;; Default location of the store database.
(string-append %store-database-directory "/db.sqlite"))
(define-syntax-rule (with-database file db exp ...)
(define-syntax with-database
(syntax-rules ()
"Open DB from FILE and close it when the dynamic extent of EXP... is left.
If FILE doesn't exist, create it and initialize it as a new database."
(call-with-database file (lambda (db) exp ...)))
If FILE doesn't exist, create it and initialize it as a new database. Pass
#:wal-mode? to call-with-database."
((_ file db #:wal-mode? wal-mode? exp ...)
(call-with-database file (lambda (db) exp ...) #:wal-mode? wal-mode?))
((_ file db exp ...)
(call-with-database file (lambda (db) exp ...)))))
(define (sqlite-finalize stmt)
;; As of guile-sqlite3 0.1.0, cached statements aren't reset when