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Force recovery to use entire log by leaving an oldest living transaction that is older than

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any transaction that commits or aborts.  Delete code that truncated the log to force the same
behavior.


git-svn-id: file:///svn/toku/tokudb@16233 c7de825b-a66e-492c-adef-691d508d4ae1
This commit is contained in:
Yoni Fogel 2013-04-16 23:58:55 -04:00
parent 87fc6bdce2
commit 1e46510c47
1 changed files with 8 additions and 13 deletions
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21
src/tests/recover-lsn-filter.c
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@ -18,6 +18,12 @@ static void run_test (void) {
r = db_env_create(&env, 0); CKERR(r);
r = env->open(env, ENVDIR, envflags, S_IRWXU+S_IRWXG+S_IRWXO); CKERR(r);
// create a txn that never closes, forcing recovery to run from the beginning of the log
{
DB_TXN *oldest_living_txn;
r = env->txn_begin(env, NULL, &oldest_living_txn, 0); CKERR(r);
}
DB *db;
r = db_create(&db, env, 0); CKERR(r);
r = db->open(db, NULL, namea, NULL, DB_BTREE, DB_AUTO_COMMIT|DB_CREATE, 0666); CKERR(r);
@ -48,24 +54,13 @@ static void run_test (void) {
abort();
}
static int my_truncate(const char *fname, toku_off_t offset) {
int fd = open(fname, O_RDWR + O_BINARY);
if (fd == -1) return errno;
int r = ftruncate(fd, offset);
close(fd);
return r;
}
static void run_recover (void) {
DB_ENV *env;
int r;
// strip the end_checkpoint from the log. this will force recovery to run the over
// the entire log.
// TODO need an API to do this
toku_struct_stat s;
r = toku_stat(ENVDIR "/log000000000000.tokulog", &s); CKERR(r);
r = my_truncate(ENVDIR "/log000000000000.tokulog", s.st_size - 0x25); CKERR(r);
// Recovery starts from oldest_living_txn, which is older than any inserts done in run_test,
// so recovery always runs over the entire log.
// run recovery
r = db_env_create(&env, 0); CKERR(r);