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#3590 merge fsync after locks are released (fixes groupcommit) refs[t:3590]

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git-svn-id: file:///svn/toku/tokudb@33073 c7de825b-a66e-492c-adef-691d508d4ae1
This commit is contained in:
Rich Prohaska 2013-04-16 23:59:45 -04:00 • committed by Yoni Fogel
parent bc608b3e75
commit d4aa39a855
5 changed files with 38 additions and 10 deletions
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2
newbrt/log-internal.h
View file

@ -156,6 +156,8 @@ struct tokutxn {
struct toku_list checkpoint_before_commit;
TXN_IGNORE_S ignore_errors; // 2954
TOKUTXN_STATE state;
LSN do_fsync_lsn;
BOOL do_fsync;
};
struct txninfo {

35
newbrt/txn.c
View file

@ -270,6 +270,7 @@ int toku_txn_begin_with_xid (
result->recovered_from_checkpoint = FALSE;
toku_list_init(&result->checkpoint_before_commit);
result->state = TOKUTXN_LIVE;
result->do_fsync = FALSE;
// 2954
r = toku_txn_ignore_init(result);
@ -329,7 +330,6 @@ int toku_txn_commit_txn(TOKUTXN txn, int nosync, YIELDF yield, void *yieldv,
struct xcommit_info {
int r;
TOKUTXN txn;
bool do_fsync;
};
//Called during a yield (ydb lock NOT held).
@ -365,7 +365,7 @@ local_checkpoints_and_log_xcommit(void *thunk) {
toku_poll_txn_progress_function(txn, TRUE, FALSE);
}
info->r = toku_log_xcommit(txn->logger, (LSN *)0, info->do_fsync, txn->txnid64); // exits holding neither of the tokulogger locks.
info->r = toku_log_xcommit(txn->logger, &txn->do_fsync_lsn, 0, txn->txnid64); // exits holding neither of the tokulogger locks.
}
int toku_txn_commit_with_lsn(TOKUTXN txn, int nosync, YIELDF yield, void *yieldv, LSN oplsn,
@ -378,8 +378,8 @@ int toku_txn_commit_with_lsn(TOKUTXN txn, int nosync, YIELDF yield, void *yieldv
// panic handled in log_commit
// Child transactions do not actually 'commit'. They promote their changes to parent, so no need to fsync if this txn has a parent.
// the do_sync state is captured in the txn for txn_close_txn later
bool do_fsync = !txn->parent && (txn->force_fsync_on_commit || (!nosync && txn->num_rollentries>0));
// the do_sync state is captured in the txn for txn_maybe_fsync_log function
txn->do_fsync = !txn->parent && (txn->force_fsync_on_commit || (!nosync && txn->num_rollentries>0));
txn->progress_poll_fun = poll;
txn->progress_poll_fun_extra = poll_extra;
@ -388,7 +388,6 @@ int toku_txn_commit_with_lsn(TOKUTXN txn, int nosync, YIELDF yield, void *yieldv
struct xcommit_info info = {
.r = 0,
.txn = txn,
.do_fsync = do_fsync,
};
yield(local_checkpoints_and_log_xcommit, &info, yieldv);
r = info.r;
@ -420,7 +419,8 @@ int toku_txn_abort_with_lsn(TOKUTXN txn, YIELDF yield, void *yieldv, LSN oplsn,
txn->progress_poll_fun = poll;
txn->progress_poll_fun_extra = poll_extra;
int r = 0;
r = toku_log_xabort(txn->logger, (LSN *)0, 0, txn->txnid64);
txn->do_fsync = FALSE;
r = toku_log_xabort(txn->logger, &txn->do_fsync_lsn, 0, txn->txnid64);
if (r!=0)
return r;
r = toku_rollback_abort(txn, yield, yieldv, oplsn);
@ -428,8 +428,29 @@ int toku_txn_abort_with_lsn(TOKUTXN txn, YIELDF yield, void *yieldv, LSN oplsn,
return r;
}
struct txn_fsync_log_info {
TOKUTXN txn;
int r;
};
static void do_txn_fsync_log(void *thunk) {
struct txn_fsync_log_info *info = (struct txn_fsync_log_info *) thunk;
TOKUTXN txn = info->txn;
info->r = toku_logger_fsync_if_lsn_not_fsynced(txn->logger, txn->do_fsync_lsn);
}
int toku_txn_maybe_fsync_log(TOKUTXN txn, YIELDF yield, void *yieldv) {
int r = 0;
if (txn->logger && txn->do_fsync) {
struct txn_fsync_log_info info = { .txn = txn };
yield(do_txn_fsync_log, &info, yieldv);
r = info.r;
}
return r;
}
void toku_txn_close_txn(TOKUTXN txn) {
TOKULOGGER logger = txn->logger; // capture these for the fsync after the txn is deleted
TOKULOGGER logger = txn->logger;
toku_rollback_txn_close(txn);
txn = NULL; // txn is no longer valid

2
newbrt/txn.h
View file

@ -40,7 +40,9 @@ int toku_txn_abort_txn(TOKUTXN txn, YIELDF yield, void *yieldv,
int toku_txn_abort_with_lsn(TOKUTXN txn, YIELDF yield, void *yieldv, LSN oplsn,
TXN_PROGRESS_POLL_FUNCTION poll, void *poll_extra);
int toku_txn_maybe_fsync_log(TOKUTXN txn, YIELDF yield, void *yieldv);
void toku_txn_close_txn(TOKUTXN txn);
XIDS toku_txn_get_xids (TOKUTXN);
// Returns TRUE if a is older than b

5
src/tests/test_groupcommit_count.c
View file

@ -114,8 +114,9 @@ do_test (int N) {
int count_before = get_fsync_count();
test_groupcommit(N);
printtdiff(N);
if (get_fsync_count()-count_before>= N*NITER) {
if (verbose) printf("It looks like too many fsyncs. Group commit doesn't appear to be occuring.\n");
int count_after = get_fsync_count();
if (count_after-count_before >= N*NITER) {
if (verbose) printf("It looks like too many fsyncs. Group commit doesn't appear to be occuring. %d - %d >= %d\n", count_after, count_before, N*NITER);
exit(1);
}
}

2
src/ydb.c
View file

@ -2451,6 +2451,7 @@ toku_txn_commit(DB_TXN * txn, u_int32_t flags,
// Close the logger after releasing the locks
r = toku_txn_release_locks(txn);
//toku_logger_txn_close(db_txn_struct_i(txn)->tokutxn);
toku_txn_maybe_fsync_log(db_txn_struct_i(txn)->tokutxn, ydb_yield, NULL);
toku_txn_close_txn(db_txn_struct_i(txn)->tokutxn);
// the toxutxn is freed, and we must free the rest. */
@ -2520,6 +2521,7 @@ toku_txn_abort(DB_TXN * txn,
assert(r==0);
r = toku_txn_release_locks(txn);
//toku_logger_txn_close(db_txn_struct_i(txn)->tokutxn);
toku_txn_maybe_fsync_log(db_txn_struct_i(txn)->tokutxn, ydb_yield, NULL);
toku_txn_close_txn(db_txn_struct_i(txn)->tokutxn);
#if !TOKUDB_NATIVE_H