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Log more information for the add file with overlapping range failure

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Summary: crash_test sometimes fails, hitting the add file overlapping assert. Add information in info logs help us to find the bug.

Test Plan: Run all test suites. Do some manual tests to make sure printing is correct.

Reviewers: kradhakrishnan, yhchiang, anthony, IslamAbdelRahman, rven, igor

Reviewed By: igor

Subscribers: leveldb, dhruba

Differential Revision: https://reviews.facebook.net/D49017
This commit is contained in:
sdong 2015-10-19 13:07:05 -07:00
parent 90228bb088
commit 6d6776f6b8
4 changed files with 29 additions and 12 deletions
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11
db/version_builder.cc
View file

@ -82,6 +82,7 @@ class VersionBuilder::Rep {
};
const EnvOptions& env_options_;
Logger* info_log_;
TableCache* table_cache_;
VersionStorageInfo* base_vstorage_;
LevelState* levels_;
@ -89,9 +90,10 @@ class VersionBuilder::Rep {
FileComparator level_nonzero_cmp_;
public:
Rep(const EnvOptions& env_options, TableCache* table_cache,
Rep(const EnvOptions& env_options, Logger* info_log, TableCache* table_cache,
VersionStorageInfo* base_vstorage)
: env_options_(env_options),
info_log_(info_log),
table_cache_(table_cache),
base_vstorage_(base_vstorage) {
levels_ = new LevelState[base_vstorage_->num_levels()];
@ -335,15 +337,16 @@ class VersionBuilder::Rep {
if (levels_[level].deleted_files.count(f->fd.GetNumber()) > 0) {
// File is deleted: do nothing
} else {
vstorage->AddFile(level, f);
vstorage->AddFile(level, f, info_log_);
}
}
};
VersionBuilder::VersionBuilder(const EnvOptions& env_options,
TableCache* table_cache,
VersionStorageInfo* base_vstorage)
: rep_(new Rep(env_options, table_cache, base_vstorage)) {}
VersionStorageInfo* base_vstorage,
Logger* info_log)
: rep_(new Rep(env_options, info_log, table_cache, base_vstorage)) {}
VersionBuilder::~VersionBuilder() { delete rep_; }
void VersionBuilder::CheckConsistency(VersionStorageInfo* vstorage) {
rep_->CheckConsistency(vstorage);

2
db/version_builder.h
View file

@ -24,7 +24,7 @@ class InternalStats;
class VersionBuilder {
public:
VersionBuilder(const EnvOptions& env_options, TableCache* table_cache,
VersionStorageInfo* base_vstorage);
VersionStorageInfo* base_vstorage, Logger* info_log = nullptr);
~VersionBuilder();
void CheckConsistency(VersionStorageInfo* vstorage);
void CheckConsistencyForDeletes(VersionEdit* edit, uint64_t number,

26
db/version_set.cc
View file

@ -524,7 +524,7 @@ class BaseReferencedVersionBuilder {
explicit BaseReferencedVersionBuilder(ColumnFamilyData* cfd)
: version_builder_(new VersionBuilder(
cfd->current()->version_set()->env_options(), cfd->table_cache(),
cfd->current()->storage_info())),
cfd->current()->storage_info(), cfd->ioptions()->info_log)),
version_(cfd->current()) {
version_->Ref();
}
@ -1262,13 +1262,27 @@ bool CompareCompensatedSizeDescending(const Fsize& first, const Fsize& second) {
}
} // anonymous namespace
void VersionStorageInfo::AddFile(int level, FileMetaData* f) {
void VersionStorageInfo::AddFile(int level, FileMetaData* f, Logger* info_log) {
auto* level_files = &files_[level];
// Must not overlap
assert(level <= 0 || level_files->empty() ||
internal_comparator_->Compare(
(*level_files)[level_files->size() - 1]->largest, f->smallest) <
0);
#ifndef NDEBUG
if (level > 0 && !level_files->empty() &&
internal_comparator_->Compare(
(*level_files)[level_files->size() - 1]->largest, f->smallest) >= 0) {
auto* f2 = (*level_files)[level_files->size() - 1];
if (info_log != nullptr) {
Error(info_log, "Adding new file %" PRIu64
" range (%s, %s) to level %d but overlapping "
"with existing file %" PRIu64 " %s %s",
f->fd.GetNumber(), f->smallest.DebugString(true).c_str(),
f->largest.DebugString(true).c_str(), level, f2->fd.GetNumber(),
f2->smallest.DebugString(true).c_str(),
f2->largest.DebugString(true).c_str());
LogFlush(info_log);
}
assert(false);
}
#endif
f->refs++;
level_files->push_back(f);
}

2
db/version_set.h
View file

@ -97,7 +97,7 @@ class VersionStorageInfo {
void Reserve(int level, size_t size) { files_[level].reserve(size); }
void AddFile(int level, FileMetaData* f);
void AddFile(int level, FileMetaData* f, Logger* info_log = nullptr);
void SetFinalized();