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Change LoadingParam struct and endVersion definition 

1) Remove endVersion field because it has been included in RestoreAsset;

2) Ensure endVersion in VersionBatch and RestoreAsset is always exclusive;

3) Revise ASSERT in laoder and applier in situations when the dummy commit version
is endVersion, to avoid false positive ASSERT failure.
This commit is contained in:
Meng Xu 2020-01-06 20:32:26 -08:00
parent c3f8f3b445
commit 67e913c3d5
5 changed files with 36 additions and 29 deletions
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12
fdbclient/RestoreWorkerInterface.actor.h
View File

@ -236,7 +236,7 @@ struct RestoreAsset {
std::string toString() {
std::stringstream ss;
ss << "UID" << uid.toString() << "begin:" << beginVersion << " end:" << endVersion << " range:" << range.toString()
ss << "UID:" << uid.toString() << " begin:" << beginVersion << " end:" << endVersion << " range:" << range.toString()
<< " filename:" << filename << " fileIndex:" << fileIndex << " offset:" << offset << " len:" << len;
return ss.str();
}
@ -255,7 +255,8 @@ struct LoadingParam {
bool isRangeFile;
Key url;
Version prevVersion;
Version endVersion; // range file's mutations are all at the endVersion
Version rangeVersion; // range file's version
//Version endVersion; // range file's mutations are all at the endVersion
int64_t blockSize;
RestoreAsset asset;
@ -271,13 +272,16 @@ struct LoadingParam {
template <class Ar>
void serialize(Ar& ar) {
serializer(ar, isRangeFile, url, prevVersion, endVersion, blockSize, asset);
//serializer(ar, isRangeFile, url, prevVersion, endVersion, blockSize, asset);
serializer(ar, isRangeFile, url, prevVersion, rangeVersion, blockSize, asset);
}
std::string toString() {
std::stringstream str;
// str << "isRangeFile:" << isRangeFile << " url:" << url.toString() << " prevVersion:" << prevVersion
// << " endVersion:" << endVersion << " blockSize:" << blockSize << " RestoreAsset:" << asset.toString();
str << "isRangeFile:" << isRangeFile << " url:" << url.toString() << " prevVersion:" << prevVersion
<< " endVersion:" << endVersion << " blockSize:" << blockSize << " RestoreAsset:" << asset.toString();
<< " rangeVersion:" << rangeVersion << " blockSize:" << blockSize << " RestoreAsset:" << asset.toString();
return str.str();
}
};

3
fdbserver/RestoreApplier.actor.cpp
View File

@ -112,7 +112,8 @@ ACTOR static Future<Void> handleSendMutationVectorRequest(RestoreSendVersionedMu
// Sanity check: mutations in range file is in [beginVersion, endVersion);
// mutations in log file is in [beginVersion, endVersion], both inclusive.
ASSERT_WE_THINK(commitVersion >= req.asset.beginVersion);
ASSERT_WE_THINK((req.isRangeFile && commitVersion < req.asset.endVersion) ||
// Loader sends the endVersion to ensure all useful versions are sent
ASSERT_WE_THINK((req.isRangeFile && commitVersion <= req.asset.endVersion) ||
(!req.isRangeFile && commitVersion <= req.asset.endVersion));
if (self->kvOps.find(commitVersion) == self->kvOps.end()) {

8
fdbserver/RestoreLoader.actor.cpp
View File

@ -154,7 +154,7 @@ ACTOR Future<Void> _processLoadingParam(LoadingParam param, Reference<RestoreLoa
subAsset.len = std::min<int64_t>(param.blockSize, param.asset.len - j);
if (param.isRangeFile) {
fileParserFutures.push_back(
_parseRangeFileToMutationsOnLoader(kvOpsPerLPIter, samplesIter, self->bc, param.endVersion, subAsset));
_parseRangeFileToMutationsOnLoader(kvOpsPerLPIter, samplesIter, self->bc, param.rangeVersion, subAsset));
} else {
// TODO: Sanity check the log file's range is overlapped with the restored version range
fileParserFutures.push_back(_parseLogFileToMutationsOnLoader(&processedFileOffset, &mutationMap,
@ -199,7 +199,7 @@ ACTOR Future<Void> handleSendMutationsRequest(RestoreSendMutationsToAppliersRequ
if (item->first.isRangeFile == req.useRangeFile) {
// Send the parsed mutation to applier who will apply the mutation to DB
wait(sendMutationsToApplier(self, &item->second, item->first.isRangeFile, item->first.prevVersion,
item->first.endVersion, item->first.asset));
item->first.asset.endVersion, item->first.asset));
}
}
@ -245,11 +245,11 @@ ACTOR Future<Void> sendMutationsToApplier(Reference<RestoreLoaderData> self, Ver
applierMutationsSize[applierID] = 0.0;
}
Version commitVersion = kvOp->first;
if (!(commitVersion >= asset.beginVersion && commitVersion < asset.endVersion)) { // Debug purpose
if (!(commitVersion >= asset.beginVersion && commitVersion <= asset.endVersion)) { // Debug purpose
TraceEvent(SevError, "FastRestore_SendMutationsToApplier").detail("CommitVersion", commitVersion).detail("RestoreAsset", asset.toString());
}
ASSERT(commitVersion >= asset.beginVersion);
ASSERT(commitVersion < asset.endVersion);
ASSERT(commitVersion <= asset.endVersion); // endVersion is an empty commit to ensure progress
for (int mIndex = 0; mIndex < kvOp->second.size(); mIndex++) {
MutationRef kvm = kvOp->second[mIndex];

7
fdbserver/RestoreMaster.actor.cpp
View File

@ -288,9 +288,10 @@ ACTOR static Future<Void> loadFilesOnLoaders(Reference<RestoreMasterData> self,
LoadingParam param;
param.prevVersion = 0; // Each file's NotifiedVersion starts from 0
param.endVersion = file.isRange ? file.version : file.endVersion;
//param.endVersion = file.isRange ? file.version : file.endVersion;
param.url = request.url;
param.isRangeFile = file.isRange;
param.rangeVersion = file.isRange ? file.version : -1;
param.blockSize = file.blockSize;
param.asset.filename = file.fileName;
@ -301,14 +302,14 @@ ACTOR static Future<Void> loadFilesOnLoaders(Reference<RestoreMasterData> self,
param.asset.beginVersion = versionBatch.beginVersion;
param.asset.endVersion = versionBatch.endVersion;
prevVersion = param.endVersion;
prevVersion = param.asset.endVersion;
// Log file to be loaded
TraceEvent("FastRestore").detail("LoadParam", param.toString()).detail("LoaderID", loader->first.toString());
ASSERT_WE_THINK(param.asset.len >= 0); // we may load an empty file
ASSERT_WE_THINK(param.asset.offset >= 0);
ASSERT_WE_THINK(param.asset.offset <= file.fileSize);
ASSERT_WE_THINK(param.prevVersion <= param.endVersion);
ASSERT_WE_THINK(param.prevVersion <= param.asset.endVersion);
requests.emplace_back(loader->first, RestoreLoadFileRequest(param));
loader++;

35
fdbserver/RestoreMaster.actor.h
View File

@ -122,7 +122,7 @@ struct RestoreMasterData : RestoreRoleData, public ReferenceCounted<RestoreMaste
}
}
// Input: Get the size of data at nextVersion in rangeFiles from rangeIdx and logFiles from logIdx
// Input: Get the size of data in backup files in version range [prevVersion, nextVersion)
// Return: param1: the size of data at nextVersion, param2: the minimum range file index whose version >
// nextVersion, param3: log files with data in [prevVersion, nextVersion]
std::tuple<double, int, std::vector<RestoreFileFR>> getVersionSize(Version prevVersion, Version nextVersion,
@ -139,12 +139,10 @@ struct RestoreMasterData : RestoreRoleData, public ReferenceCounted<RestoreMaste
ASSERT(prevVersion <= nextVersion);
while (rangeIdx < rangeFiles.size()) {
TraceEvent(SevDebug, "FastRestoreGetVersionSize").detail("RangeFile", rangeFiles[rangeIdx].toString());
if (rangeFiles[rangeIdx].version <= nextVersion) {
if (rangeFiles[rangeIdx].version < nextVersion) {
ASSERT(rangeFiles[rangeIdx].version >= prevVersion);
size += rangeFiles[rangeIdx].fileSize;
} else {
//TraceEvent("FastRestoreGetVersionSize").detail("RangeIdx", rangeIdx).detail("FileVersion", rangeFiles[rangeIdx].version).detail("NextVersion", nextVersion);
// ASSERT(rangeFiles[rangeIdx].version > nextVersion);
break;
}
++rangeIdx;
@ -155,8 +153,8 @@ struct RestoreMasterData : RestoreRoleData, public ReferenceCounted<RestoreMaste
// For example, we do not assume each version range only exists in one log file
while (logIdx < logFiles.size()) {
Version begin = std::max(prevVersion, logFiles[logIdx].beginVersion);
Version end = std::min(nextVersion + 1, logFiles[logIdx].endVersion);
if (begin < end) { // logIdx file overlap in [prevVersion, nextVersion]
Version end = std::min(nextVersion, logFiles[logIdx].endVersion);
if (begin < end) { // logIdx file overlap in [prevVersion, nextVersion)
double ratio = (end - begin) / (logFiles[logIdx].endVersion - logFiles[logIdx].beginVersion);
size += logFiles[logIdx].fileSize * ratio;
retLogs.push_back(logFiles[logIdx]);
@ -170,26 +168,28 @@ struct RestoreMasterData : RestoreRoleData, public ReferenceCounted<RestoreMaste
// Input: sorted range files, sorted log files;
// Output: a set of version batches whose size is less than opConfig.batchSizeThreshold
// and each mutation data in backup files is included in the version batches exactly once
// Assume: input files has no empty files
// Assumption 1: input files has no empty files
// Assumption 2: range files at one version > batchSizeThreshold
void buildVersionBatches(const std::vector<RestoreFileFR>& rangeFiles, const std::vector<RestoreFileFR>& logFiles,
std::map<Version, VersionBatch>* versionBatches) {
// Version batch range [beginVersion, endVersion)
Version beginVersion = 0;
Version endVersion = 0;
Version prevEndVersion = 0;
double batchSize = 0;
double batchSize = 0; // TODO: Can be deleted
int rangeIdx = 0;
int logIdx = 0;
Version nextVersion = 0;
Version nextVersion = 0; // Used to calculate the batch's endVersion
VersionBatch vb;
vb.beginVersion = beginVersion;
bool rewriteNextVersion = false;
while (rangeIdx < rangeFiles.size() || logIdx < logFiles.size()) {
if (!rewriteNextVersion) {
if (rangeIdx < rangeFiles.size() && logIdx < logFiles.size()) {
nextVersion = std::max(rangeFiles[rangeIdx].version, nextVersion);
// nextVersion as endVersion is exclusive in the version range
nextVersion = std::max(rangeFiles[rangeIdx].version + 1, nextVersion);
} else if (rangeIdx < rangeFiles.size()) { // i.e., logIdx >= logFiles.size()
nextVersion = rangeFiles[rangeIdx].version;
nextVersion = rangeFiles[rangeIdx].version + 1;
} else if (logIdx < logFiles.size()) {
while (logIdx < logFiles.size() && logFiles[logIdx].endVersion <= nextVersion) {
logIdx++;
@ -241,14 +241,14 @@ struct RestoreMasterData : RestoreRoleData, public ReferenceCounted<RestoreMaste
}
for (auto& log : curLogFiles) {
ASSERT(log.beginVersion <= nextVersion);
ASSERT(log.beginVersion < nextVersion);
ASSERT(log.endVersion > prevEndVersion);
vb.logFiles.push_back(log);
advanced = true;
}
ASSERT(advanced == true || nextVersionSize > 0); // Ensure progress
vb.endVersion = nextVersion + 1;
vb.endVersion = nextVersion;
prevEndVersion = vb.endVersion;
} else {
if (batchSize < 1) {
@ -270,18 +270,19 @@ struct RestoreMasterData : RestoreRoleData, public ReferenceCounted<RestoreMaste
continue;
}
// Finalize the current version batch
vb.endVersion = nextVersion;
//vb.endVersion = nextVersion;
vb.size = batchSize;
versionBatches->emplace(vb.beginVersion, vb); // copy vb to versionBatch
// start finding the next version batch
vb.reset();
batchSize = 0;
vb.beginVersion = nextVersion;
prevEndVersion = nextVersion; //ensure prevEndVersion is in the batch's version range
vb.beginVersion = prevEndVersion;
nextVersion = prevEndVersion + 1;
}
}
// The last wip version batch has some files
if (batchSize > 0) {
vb.endVersion = nextVersion + 1;
vb.endVersion = nextVersion;
vb.size = batchSize;
versionBatches->emplace(vb.beginVersion, vb);
}