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Increased the SQLITE_CHUNK_SIZE to 100MB (left at 4MB for simulation)

This commit is contained in:
Evan Tschannen 2019-04-26 13:53:56 -07:00
parent 1f37f82b87
commit 9ff8aca1da
3 changed files with 11 additions and 2 deletions
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9
fdbserver/KeyValueStoreSQLite.actor.cpp
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@ -1325,7 +1325,14 @@ void SQLiteDB::open(bool writable) {
int result = sqlite3_open_v2(apath.c_str(), &db, (writable ? SQLITE_OPEN_READWRITE : SQLITE_OPEN_READONLY), NULL);
checkError("open", result);
int chunkSize = 4096 * (BUGGIFY ? g_random->randomInt(0, 100) : SERVER_KNOBS->SQLITE_CHUNK_SIZE_PAGES);
int chunkSize;
if( !g_network->isSimulated() ) {
chunkSize = 4096 * SERVER_KNOBS->SQLITE_CHUNK_SIZE_PAGES;
} else if( BUGGIFY ) {
chunkSize = 4096 * g_random->randomInt(0, 100);
} else {
chunkSize = 4096 * SERVER_KNOBS->SQLITE_CHUNK_SIZE_PAGES_SIM;
}
checkError("setChunkSize", sqlite3_file_control(db, nullptr, SQLITE_FCNTL_CHUNK_SIZE, &chunkSize));
btree = db->aDb[0].pBt;

3
fdbserver/Knobs.cpp
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@ -195,7 +195,8 @@ ServerKnobs::ServerKnobs(bool randomize, ClientKnobs* clientKnobs) {
init( SQLITE_PAGE_SCAN_ERROR_LIMIT, 10000 );
init( SQLITE_BTREE_PAGE_USABLE, 4096 - 8); // pageSize - reserveSize for page checksum
init( SQLITE_CHUNK_SIZE_PAGES, 1024 ); // 4MB
init( SQLITE_CHUNK_SIZE_PAGES, 25600 ); // 100MB
init( SQLITE_CHUNK_SIZE_PAGES_SIM, 1024 ); // 4MB
// Maximum and minimum cell payload bytes allowed on primary page as calculated in SQLite.
// These formulas are copied from SQLite, using its hardcoded constants, so if you are

1
fdbserver/Knobs.h
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@ -167,6 +167,7 @@ public:
int SQLITE_FRAGMENT_OVERFLOW_PAGE_USABLE;
double SQLITE_FRAGMENT_MIN_SAVINGS;
int SQLITE_CHUNK_SIZE_PAGES;
int SQLITE_CHUNK_SIZE_PAGES_SIM;
// KeyValueStoreSqlite spring cleaning
double SPRING_CLEANING_NO_ACTION_INTERVAL;