本文整理汇总了C++中DBConfigPtr类的典型用法代码示例。如果您正苦于以下问题：C++ DBConfigPtr类的具体用法？C++ DBConfigPtr怎么用？C++ DBConfigPtr使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了DBConfigPtr类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: _isAuthorizedSpecialChecks
bool AuthenticationInfo::_isAuthorizedSpecialChecks( const string& dbname ) const {
if ( !_isLocalHost ) {
return false;
}
string adminNs = "admin.system.users";
DBConfigPtr config = grid.getDBConfig( adminNs );
Shard s = config->getShard( adminNs );
ShardConnection conn( s, adminNs );
BSONObj result = conn->findOne("admin.system.users", Query());
if( result.isEmpty() ) {
if( ! _warned ) {
// you could get a few of these in a race, but that's ok
_warned = true;
log() << "note: no users configured in admin.system.users, allowing localhost access" << endl;
}
// Must return conn to pool
// TODO: Check for errors during findOne(), or just let the conn die?
conn.done();
return true;
}
// Must return conn to pool
conn.done();
return false;
}示例2: getUserObj
bool CmdAuthenticate::getUserObj(const string& dbname, const string& user, BSONObj& userObj, string& pwd) {
if (user == internalSecurity.user) {
pwd = internalSecurity.pwd;
}
else {
string systemUsers = dbname + ".system.users";
DBConfigPtr config = grid.getDBConfig( systemUsers );
Shard s = config->getShard( systemUsers );
static BSONObj userPattern = BSON("user" << 1);
ShardConnection conn( s, systemUsers );
OCCASIONALLY conn->ensureIndex(systemUsers, userPattern, false, "user_1");
{
BSONObjBuilder b;
b << "user" << user;
BSONObj query = b.done();
userObj = conn->findOne(systemUsers, query);
if( userObj.isEmpty() ) {
log() << "auth: couldn't find user " << user << ", " << systemUsers << endl;
return false;
}
}
pwd = userObj.getStringField("pwd");
}
return true;
}示例3: run
bool run(const string& , BSONObj& cmdObj, string& errmsg, BSONObjBuilder& result, bool){
ShardConnection::sync();
string ns = cmdObj.firstElement().valuestrsafe();
if ( ns.size() == 0 ){
errmsg = "no ns";
return false;
}
DBConfigPtr config = grid.getDBConfig( ns );
if ( ! config->isSharded( ns ) ){
errmsg = "ns not sharded. have to shard before can split";
return false;
}
BSONObj find = cmdObj.getObjectField( "find" );
if ( find.isEmpty() ){
find = cmdObj.getObjectField( "middle" );
if ( find.isEmpty() ){
errmsg = "need to specify find or middle";
return false;
}
}
ChunkManagerPtr info = config->getChunkManager( ns );
ChunkPtr old = info->findChunk( find );
return _split( result , errmsg , ns , info , old , cmdObj.getObjectField( "middle" ) );
}示例4: uassert
bool CmdAuthenticate::getUserObj(const string& dbname, const string& user, BSONObj& userObj, string& pwd) {
if (user == internalSecurity.user) {
uassert(15890, "key file must be used to log in with internal user",
!cmdLine.keyFile.empty());
pwd = internalSecurity.pwd;
}
else {
string systemUsers = dbname + ".system.users";
DBConfigPtr config = grid.getDBConfig( systemUsers );
Shard s = config->getShard( systemUsers );
static BSONObj userPattern = BSON("user" << 1);
scoped_ptr<ScopedDbConnection> conn(
ScopedDbConnection::getInternalScopedDbConnection( s.getConnString(), 30.0 ) );
OCCASIONALLY conn->get()->ensureIndex(systemUsers, userPattern, false, "user_1");
{
BSONObjBuilder b;
b << "user" << user;
BSONObj query = b.done();
userObj = conn->get()->findOne(systemUsers, query, 0, QueryOption_SlaveOk);
if( userObj.isEmpty() ) {
log() << "auth: couldn't find user " << user << ", " << systemUsers << endl;
conn->done(); // return to pool
return false;
}
}
pwd = userObj.getStringField("pwd");
conn->done(); // return to pool
}
return true;
}示例5: _moveChunks
int Balancer::_moveChunks( const vector<CandidateChunkPtr>* candidateChunks , bool secondaryThrottle ) {
int movedCount = 0;
for ( vector<CandidateChunkPtr>::const_iterator it = candidateChunks->begin(); it != candidateChunks->end(); ++it ) {
const CandidateChunk& chunkInfo = *it->get();
DBConfigPtr cfg = grid.getDBConfig( chunkInfo.ns );
verify( cfg );
ChunkManagerPtr cm = cfg->getChunkManager( chunkInfo.ns );
verify( cm );
ChunkPtr c = cm->findChunk( chunkInfo.chunk.min );
if ( c->getMin().woCompare( chunkInfo.chunk.min ) || c->getMax().woCompare( chunkInfo.chunk.max ) ) {
// likely a split happened somewhere
cm = cfg->getChunkManager( chunkInfo.ns , true /* reload */);
verify( cm );
c = cm->findChunk( chunkInfo.chunk.min );
if ( c->getMin().woCompare( chunkInfo.chunk.min ) || c->getMax().woCompare( chunkInfo.chunk.max ) ) {
log() << "chunk mismatch after reload, ignoring will retry issue " << chunkInfo.chunk.toString() << endl;
continue;
}
}
BSONObj res;
if ( c->moveAndCommit( Shard::make( chunkInfo.to ) , Chunk::MaxChunkSize , secondaryThrottle , res ) ) {
movedCount++;
continue;
}
// the move requires acquiring the collection metadata's lock, which can fail
log() << "balancer move failed: " << res << " from: " << chunkInfo.from << " to: " << chunkInfo.to
<< " chunk: " << chunkInfo.chunk << endl;
if ( res["chunkTooBig"].trueValue() ) {
// reload just to be safe
cm = cfg->getChunkManager( chunkInfo.ns );
verify( cm );
c = cm->findChunk( chunkInfo.chunk.min );
log() << "forcing a split because migrate failed for size reasons" << endl;
res = BSONObj();
c->singleSplit( true , res );
log() << "forced split results: " << res << endl;
if ( ! res["ok"].trueValue() ) {
log() << "marking chunk as jumbo: " << c->toString() << endl;
c->markAsJumbo();
// we increment moveCount so we do another round right away
movedCount++;
}
}
}
return movedCount;
}示例6: refreshChunkCache
// TODO: This refresh logic should be consolidated
void refreshChunkCache( const NamespaceString& nss ) {
DBConfigPtr config = grid.getDBConfig( nss.ns() );
if ( !config->isSharded( nss ) ) return;
// Refreshes chunks as a side-effect
config->getChunkManagerIfExists( nss, true );
}示例7: run
bool run(const string& , BSONObj& cmdObj, string& errmsg, BSONObjBuilder& result, bool){
ShardConnection::sync();
Timer t;
string ns = cmdObj.firstElement().valuestrsafe();
if ( ns.size() == 0 ){
errmsg = "no ns";
return false;
}
DBConfigPtr config = grid.getDBConfig( ns );
if ( ! config->isSharded( ns ) ){
errmsg = "ns not sharded. have to shard before can move a chunk";
return false;
}
BSONObj find = cmdObj.getObjectField( "find" );
if ( find.isEmpty() ){
errmsg = "need to specify find. see help";
return false;
}
string toString = cmdObj["to"].valuestrsafe();
if ( ! toString.size() ){
errmsg = "you have to specify where you want to move the chunk";
return false;
}
Shard to = Shard::make( toString );
// so far, chunk size serves test purposes; it may or may not become a supported parameter
long long maxChunkSizeBytes = cmdObj["maxChunkSizeBytes"].numberLong();
if ( maxChunkSizeBytes == 0 ) {
maxChunkSizeBytes = Chunk::MaxChunkSize;
}
tlog() << "CMD: movechunk: " << cmdObj << endl;
ChunkManagerPtr info = config->getChunkManager( ns );
ChunkPtr c = info->findChunk( find );
const Shard& from = c->getShard();
if ( from == to ){
errmsg = "that chunk is already on that shard";
return false;
}
BSONObj res;
if ( ! c->moveAndCommit( to , maxChunkSizeBytes , res ) ){
errmsg = "move failed";
result.append( "cause" , res );
return false;
}
result.append( "millis" , t.millis() );
return true;
}示例8: _moveChunks
int Balancer::_moveChunks( const vector<CandidateChunkPtr>* candidateChunks ) {
int movedCount = 0;
for ( vector<CandidateChunkPtr>::const_iterator it = candidateChunks->begin(); it != candidateChunks->end(); ++it ) {
const CandidateChunk& chunkInfo = *it->get();
DBConfigPtr cfg = grid.getDBConfig( chunkInfo.ns );
assert( cfg );
ChunkManagerPtr cm = cfg->getChunkManager( chunkInfo.ns );
assert( cm );
const BSONObj& chunkToMove = chunkInfo.chunk;
ChunkPtr c = cm->findChunk( chunkToMove["min"].Obj() );
if ( c->getMin().woCompare( chunkToMove["min"].Obj() ) || c->getMax().woCompare( chunkToMove["max"].Obj() ) ) {
// likely a split happened somewhere
cm = cfg->getChunkManager( chunkInfo.ns , true /* reload */);
assert( cm );
c = cm->findChunk( chunkToMove["min"].Obj() );
if ( c->getMin().woCompare( chunkToMove["min"].Obj() ) || c->getMax().woCompare( chunkToMove["max"].Obj() ) ) {
log() << "chunk mismatch after reload, ignoring will retry issue cm: "
<< c->getMin() << " min: " << chunkToMove["min"].Obj() << endl;
continue;
}
}
BSONObj res;
if ( c->moveAndCommit( Shard::make( chunkInfo.to ) , Chunk::MaxChunkSize , res ) ) {
movedCount++;
continue;
}
// the move requires acquiring the collection metadata's lock, which can fail
log() << "balacer move failed: " << res << " from: " << chunkInfo.from << " to: " << chunkInfo.to
<< " chunk: " << chunkToMove << endl;
if ( res["chunkTooBig"].trueValue() ) {
// reload just to be safe
cm = cfg->getChunkManager( chunkInfo.ns );
assert( cm );
c = cm->findChunk( chunkToMove["min"].Obj() );
log() << "forcing a split because migrate failed for size reasons" << endl;
res = BSONObj();
c->singleSplit( true , res );
log() << "forced split results: " << res << endl;
// TODO: if the split fails, mark as jumbo SERVER-2571
}
}
return movedCount;
}示例9: checkShardVersion
void checkShardVersion( DBClientBase& conn , const string& ns , bool authoritative ){
// TODO: cache, optimize, etc...
WriteBackListener::init( conn );
DBConfigPtr conf = grid.getDBConfig( ns );
if ( ! conf )
return;
ShardChunkVersion version = 0;
unsigned long long officialSequenceNumber = 0;
ChunkManagerPtr manager;
const bool isSharded = conf->isSharded( ns );
if ( isSharded ){
manager = conf->getChunkManager( ns , authoritative );
officialSequenceNumber = manager->getSequenceNumber();
}
unsigned long long & sequenceNumber = checkShardVersionLastSequence[ make_pair(&conn,ns) ];
if ( sequenceNumber == officialSequenceNumber )
return;
if ( isSharded ){
version = manager->getVersion( Shard::make( conn.getServerAddress() ) );
}
log(2) << " have to set shard version for conn: " << &conn << " ns:" << ns
<< " my last seq: " << sequenceNumber << " current: " << officialSequenceNumber
<< " version: " << version << " manager: " << manager.get()
<< endl;
BSONObj result;
if ( setShardVersion( conn , ns , version , authoritative , result ) ){
// success!
log(1) << " setShardVersion success!" << endl;
sequenceNumber = officialSequenceNumber;
dassert( sequenceNumber == checkShardVersionLastSequence[ make_pair(&conn,ns) ] );
return;
}
log(1) << " setShardVersion failed!\n" << result << endl;
if ( result.getBoolField( "need_authoritative" ) )
massert( 10428 , "need_authoritative set but in authoritative mode already" , ! authoritative );
if ( ! authoritative ){
checkShardVersion( conn , ns , 1 );
return;
}
log() << " setShardVersion failed: " << result << endl;
massert( 10429 , (string)"setShardVersion failed! " + result.jsonString() , 0 );
}示例10: forceRemoteCheckShardVersion
bool forceRemoteCheckShardVersion( const string& ns ){
DBConfigPtr conf = grid.getDBConfig( ns );
if ( ! conf ) return false;
conf->reload();
ChunkManagerPtr manager = conf->getChunkManagerIfExists( ns, true, true );
if( ! manager ) return false;
return true;
}示例11: _setupAuth
void ClientInfo::_setupAuth() {
std::string adminNs = "admin";
DBConfigPtr config = grid.getDBConfig(adminNs);
Shard shard = config->getShard(adminNs);
ShardConnection conn(shard, adminNs);
AuthorizationManager* authManager = new AuthorizationManager(new AuthExternalStateImpl());
Status status = authManager->initialize(conn.get());
massert(16479,
mongoutils::str::stream() << "Error initializing AuthorizationManager: "
<< status.reason(),
status == Status::OK());
setAuthorizationManager(authManager);
}示例12: doShardedIndexQuery
/**
* Returns true if request is a query for sharded indexes.
*/
static bool doShardedIndexQuery( Request& r, const QuerySpec& qSpec ) {
// Extract the ns field from the query, which may be embedded within the "query" or
// "$query" field.
string indexNSQuery(qSpec.filter()["ns"].str());
DBConfigPtr config = grid.getDBConfig( r.getns() );
if ( !config->isSharded( indexNSQuery )) {
return false;
}
// if you are querying on system.indexes, we need to make sure we go to a shard
// that actually has chunks. This is not a perfect solution (what if you just
// look at all indexes), but better than doing nothing.
ShardPtr shard;
ChunkManagerPtr cm;
config->getChunkManagerOrPrimary( indexNSQuery, cm, shard );
if ( cm ) {
set<Shard> shards;
cm->getAllShards( shards );
verify( shards.size() > 0 );
shard.reset( new Shard( *shards.begin() ) );
}
ShardConnection dbcon( *shard , r.getns() );
DBClientBase &c = dbcon.conn();
string actualServer;
Message response;
bool ok = c.call( r.m(), response, true , &actualServer );
uassert( 10200 , "mongos: error calling db", ok );
{
QueryResult::View qr = response.singleData().view2ptr();
if ( qr.getResultFlags() & ResultFlag_ShardConfigStale ) {
dbcon.done();
// Version is zero b/c this is deprecated codepath
throw RecvStaleConfigException( r.getns(),
"Strategy::doQuery",
ChunkVersion( 0, 0, OID() ),
ChunkVersion( 0, 0, OID() ));
}
}
r.reply( response , actualServer.size() ? actualServer : c.getServerAddress() );
dbcon.done();
return true;
}示例13: forceRemoteCheckShardVersionCB
bool VersionManager::forceRemoteCheckShardVersionCB( const string& ns ){
DBConfigPtr conf = grid.getDBConfig( ns );
if ( ! conf ) return false;
conf->reload();
// If we don't have a collection, don't refresh the chunk manager
if( nsGetCollection( ns ).size() == 0 ) return false;
ChunkManagerPtr manager = conf->getChunkManagerIfExists( ns, true, true );
if( ! manager ) return false;
return true;
}示例14: guessMergeShard
// TODO: Same limitations as other mongos metadata commands, sometimes we'll be stale here
// and fail. Need to better integrate targeting with commands.
ShardPtr guessMergeShard( const NamespaceString& nss, const BSONObj& minKey ) {
DBConfigPtr config = grid.getDBConfig( nss.ns() );
if ( !config->isSharded( nss ) ) {
config->reload();
if ( !config->isSharded( nss ) ) {
return ShardPtr();
}
}
ChunkManagerPtr manager = config->getChunkManager( nss );
if ( !manager ) return ShardPtr();
ChunkPtr chunk = manager->findChunkForDoc( minKey );
if ( !chunk ) return ShardPtr();
return ShardPtr( new Shard( chunk->getShard() ) );
}示例15: init
Status ChunkManagerTargeter::init( const NamespaceString& nss ) {
_nss = nss;
//
// Get the latest metadata information from the cache
//
DBConfigPtr config;
string errMsg;
if ( !getDBConfigSafe( _nss.db(), config, &errMsg ) ) {
return Status( ErrorCodes::DatabaseNotFound, errMsg );
}
// Get either the chunk manager or primary shard
config->getChunkManagerOrPrimary( _nss.ns(), _manager, _primary );
return Status::OK();
}