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Merge "truncate WAL files on exit" into main

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jade 2024-05-31 19:21:30 +00:00 committed by Gerrit Code Review
parent adedac70fa 713cd7e9e7
commit 7081889faa
1 changed files with 6 additions and 1 deletions
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7
src/libstore/local-store.cc
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@ -550,7 +550,12 @@ void LocalStore::openDB(State & state, bool create)
if (mode == "wal" ) {
/* persist the WAL files when the DB connection is closed.
* This allows for read-only connections without any write permissions
* on the state directory to succeed on a closed database. */
* on the state directory to succeed on a closed database. Setting the
* journal_size_limit to 2^40 bytes results in the WAL files getting
* truncated to 0 on exit and limits the on disk size of the WAL files
* to 2^40 bytes following a checkpoint */
if (sqlite3_exec(db, "pragma main.journal_size_limit = 1099511627776;", 0, 0, 0) != SQLITE_OK)
SQLiteError::throw_(db, "setting journal_size_limit");
int enable = 1;
if (sqlite3_file_control(db, NULL, SQLITE_FCNTL_PERSIST_WAL, &enable) != SQLITE_OK)
SQLiteError::throw_(db, "setting persistent WAL mode");