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Combine two FindObsoleteFiles() 

Summary: We don't need to call FindObsoleteFiles() twice

Test Plan: deletefile_test

Reviewers: dhruba

Reviewed By: dhruba

CC: leveldb

Differential Revision: https://reviews.facebook.net/D14007
This commit is contained in:
Igor Canadi 2013-11-11 21:41:32 -08:00
parent 0ef628537c
commit 4abd219cfc
1 changed files with 12 additions and 8 deletions
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20
db/db_impl.cc
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@ -1613,8 +1613,9 @@ void DBImpl::BackgroundCallFlush() {
assert(bg_flush_scheduled_);
MutexLock l(&mutex_);
Status s;
if (!shutting_down_.Acquire_Load()) {
Status s = BackgroundFlush(&madeProgress, deletion_state);
s = BackgroundFlush(&madeProgress, deletion_state);
if (!s.ok()) {
// Wait a little bit before retrying background compaction in
// case this is an environmental problem and we do not want to
@ -1627,13 +1628,13 @@ void DBImpl::BackgroundCallFlush() {
LogFlush(options_.info_log);
env_->SleepForMicroseconds(1000000);
mutex_.Lock();
// clean up all the files we might have created.
FindObsoleteFiles(deletion_state, true);
}
}
// delete unnecessary files if any, this is done outside the mutex
FindObsoleteFiles(deletion_state, false);
// If !s.ok(), this means that Flush failed. In that case, we want
// to delete all obsolete files and we force FindObsoleteFiles()
FindObsoleteFiles(deletion_state, !s.ok());
if (deletion_state.HaveSomethingToDelete()) {
mutex_.Unlock();
PurgeObsoleteFiles(deletion_state);
@ -1661,8 +1662,9 @@ void DBImpl::BackgroundCallCompaction() {
MutexLock l(&mutex_);
// Log(options_.info_log, "XXX BG Thread %llx process new work item", pthread_self());
assert(bg_compaction_scheduled_);
Status s;
if (!shutting_down_.Acquire_Load()) {
Status s = BackgroundCompaction(&madeProgress, deletion_state);
s = BackgroundCompaction(&madeProgress, deletion_state);
if (!s.ok()) {
// Wait a little bit before retrying background compaction in
// case this is an environmental problem and we do not want to
@ -1675,13 +1677,15 @@ void DBImpl::BackgroundCallCompaction() {
LogFlush(options_.info_log);
env_->SleepForMicroseconds(1000000);
mutex_.Lock();
// clean up all the files we might have created
FindObsoleteFiles(deletion_state, true);
}
}
// delete unnecessary files if any, this is done outside the mutex
FindObsoleteFiles(deletion_state, false);
// If !s.ok(), this means that Compaction failed. In that case, we want
// to delete all obsolete files we might have created and we force
// FindObsoleteFiles(). This is because deletion_state does not catch
// all created files if compaction failed.
FindObsoleteFiles(deletion_state, !s.ok());
if (deletion_state.HaveSomethingToDelete()) {
mutex_.Unlock();
PurgeObsoleteFiles(deletion_state);