本文整理汇总了C++中ChunkManagerPtr::get方法的典型用法代码示例。如果您正苦于以下问题:C++ ChunkManagerPtr::get方法的具体用法?C++ ChunkManagerPtr::get怎么用?C++ ChunkManagerPtr::get使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ChunkManagerPtr
的用法示例。
在下文中一共展示了ChunkManagerPtr::get方法的6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: 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2: checkShardVersion
/**
* @return true if had to do something
*/
bool checkShardVersion( DBClientBase * conn_in , const string& ns , ChunkManagerPtr refManager, bool authoritative , int tryNumber ) {
// TODO: cache, optimize, etc...
WriteBackListener::init( *conn_in );
DBConfigPtr conf = grid.getDBConfig( ns );
if ( ! conf )
return false;
DBClientBase* conn = getVersionable( conn_in );
verify(conn); // errors thrown above
unsigned long long officialSequenceNumber = 0;
ChunkManagerPtr manager;
const bool isSharded = conf->isSharded( ns );
if ( isSharded ) {
manager = conf->getChunkManagerIfExists( ns , authoritative );
// It's possible the chunk manager was reset since we checked whether sharded was true,
// so must check this here.
if( manager ) officialSequenceNumber = manager->getSequenceNumber();
}
// Check this manager against the reference manager
if( isSharded && manager ){
Shard shard = Shard::make( conn->getServerAddress() );
if( refManager && ! refManager->compatibleWith( manager, shard ) ){
throw SendStaleConfigException( ns, str::stream() << "manager (" << manager->getVersion( shard ).toString() << " : " << manager->getSequenceNumber() << ") "
<< "not compatible with reference manager (" << refManager->getVersion( shard ).toString() << " : " << refManager->getSequenceNumber() << ") "
<< "on shard " << shard.getName() << " (" << shard.getAddress().toString() << ")",
refManager->getVersion( shard ), manager->getVersion( shard ) );
}
}
else if( refManager ){
Shard shard = Shard::make( conn->getServerAddress() );
string msg( str::stream() << "not sharded ("
<< ( (manager.get() == 0) ? string( "<none>" ) :
str::stream() << manager->getSequenceNumber() )
<< ") but has reference manager ("
<< refManager->getSequenceNumber() << ") "
<< "on conn " << conn->getServerAddress() << " ("
<< conn_in->getServerAddress() << ")" );
throw SendStaleConfigException( ns, msg,
refManager->getVersion( shard ), ShardChunkVersion( 0, OID() ));
}
// has the ChunkManager been reloaded since the last time we updated the connection-level version?
// (ie., last time we issued the setShardVersions below)
unsigned long long sequenceNumber = connectionShardStatus.getSequence(conn,ns);
if ( sequenceNumber == officialSequenceNumber ) {
return false;
}
ShardChunkVersion version = ShardChunkVersion( 0, OID() );
if ( isSharded && manager ) {
version = manager->getVersion( Shard::make( conn->getServerAddress() ) );
}
if( ! version.isSet() ){
LOG(0) << "resetting shard version of " << ns << " on " << conn->getServerAddress() << ", " <<
( ! isSharded ? "no longer sharded" :
( ! manager ? "no chunk manager found" :
"version is zero" ) ) << endl;
}
LOG(2) << " have to set shard version for conn: " << conn->getServerAddress() << " ns:" << ns
<< " my last seq: " << sequenceNumber << " current: " << officialSequenceNumber
<< " version: " << version << " manager: " << manager.get()
<< endl;
const string versionableServerAddress(conn->getServerAddress());
BSONObj result;
if ( setShardVersion( *conn , ns , version , authoritative , result ) ) {
// success!
LOG(1) << " setShardVersion success: " << result << endl;
connectionShardStatus.setSequence( conn , ns , officialSequenceNumber );
return true;
}
LOG(1) << " setShardVersion failed!\n" << result << endl;
if ( result["need_authoritative"].trueValue() )
massert( 10428 , "need_authoritative set but in authoritative mode already" , ! authoritative );
if ( ! authoritative ) {
// use the original connection and get a fresh versionable connection
// since conn can be invalidated (or worse, freed) after the failure
checkShardVersion(conn_in, ns, refManager, 1, tryNumber + 1);
return true;
}
if ( result["reloadConfig"].trueValue() ) {
if( result["version"].timestampTime() == 0 ){
//.........这里部分代码省略.........
示例3: checkShardVersion
/**
* @return true if had to do something
*/
bool checkShardVersion( DBClientBase& conn_in , const string& ns , bool authoritative , int tryNumber ) {
// TODO: cache, optimize, etc...
WriteBackListener::init( conn_in );
DBConfigPtr conf = grid.getDBConfig( ns );
if ( ! conf )
return false;
DBClientBase* conn = 0;
switch ( conn_in.type() ) {
case ConnectionString::INVALID:
assert(0);
break;
case ConnectionString::MASTER:
// great
conn = &conn_in;
break;
case ConnectionString::PAIR:
assert( ! "pair not support for sharding" );
break;
case ConnectionString::SYNC:
// TODO: we should check later that we aren't actually sharded on this
conn = &conn_in;
break;
case ConnectionString::SET:
DBClientReplicaSet* set = (DBClientReplicaSet*)&conn_in;
conn = &(set->masterConn());
break;
}
assert(conn);
unsigned long long officialSequenceNumber = 0;
ChunkManagerPtr manager;
const bool isSharded = conf->isSharded( ns );
if ( isSharded ) {
manager = conf->getChunkManagerIfExists( ns , authoritative );
// It's possible the chunk manager was reset since we checked whether sharded was true,
// so must check this here.
if( manager ) officialSequenceNumber = manager->getSequenceNumber();
}
// has the ChunkManager been reloaded since the last time we updated the connection-level version?
// (ie., last time we issued the setShardVersions below)
unsigned long long sequenceNumber = connectionShardStatus.getSequence(conn,ns);
if ( sequenceNumber == officialSequenceNumber ) {
return false;
}
ShardChunkVersion version = 0;
if ( isSharded && manager ) {
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: " << result << endl;
connectionShardStatus.setSequence( conn , ns , officialSequenceNumber );
return true;
}
LOG(1) << " setShardVersion failed!\n" << result << endl;
if ( result["need_authoritative"].trueValue() )
massert( 10428 , "need_authoritative set but in authoritative mode already" , ! authoritative );
if ( ! authoritative ) {
checkShardVersion( *conn , ns , 1 , tryNumber + 1 );
return true;
}
if ( result["reloadConfig"].trueValue() ) {
if( result["version"].timestampTime() == 0 ){
// reload db
conf->reload();
}
else {
// reload config
conf->getChunkManager( ns , true );
}
}
const int maxNumTries = 7;
if ( tryNumber < maxNumTries ) {
LOG( tryNumber < ( maxNumTries / 2 ) ? 1 : 0 )
<< "going to retry checkShardVersion host: " << conn->getServerAddress() << " " << result << endl;
sleepmillis( 10 * tryNumber );
//.........这里部分代码省略.........
示例4: checkShardVersion
/**
* @return true if had to do something
*/
bool checkShardVersion( DBClientBase& conn , const string& ns , bool authoritative , int tryNumber ) {
// TODO: cache, optimize, etc...
WriteBackListener::init( conn );
DBConfigPtr conf = grid.getDBConfig( ns );
if ( ! conf )
return false;
unsigned long long officialSequenceNumber = 0;
ChunkManagerPtr manager;
const bool isSharded = conf->isSharded( ns );
if ( isSharded ) {
manager = conf->getChunkManager( ns , authoritative );
officialSequenceNumber = manager->getSequenceNumber();
}
// has the ChunkManager been reloaded since the last time we updated the connection-level version?
// (ie, last time we issued the setShardVersions below)
unsigned long long sequenceNumber = connectionShardStatus.getSequence(&conn,ns);
if ( sequenceNumber == officialSequenceNumber ) {
return false;
}
ShardChunkVersion version = 0;
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: " << result << endl;
connectionShardStatus.setSequence( &conn , ns , officialSequenceNumber );
return true;
}
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 , tryNumber + 1 );
return true;
}
if ( tryNumber < 4 ) {
log(1) << "going to retry checkShardVersion" << endl;
sleepmillis( 10 );
checkShardVersion( conn , ns , 1 , tryNumber + 1 );
return true;
}
log() << " setShardVersion failed: " << result << endl;
massert( 10429 , (string)"setShardVersion failed! " + result.jsonString() , 0 );
return true;
}
示例5: checkShardVersion
/**
* Updates the remote cached version on the remote shard host (primary, in the case of replica
* sets) if needed with a fully-qualified shard version for the given namespace:
* config server(s) + shard name + shard version
*
* If no remote cached version has ever been set, an initial shard version is sent.
*
* If the namespace is empty and no version has ever been sent, the config server + shard name
* is sent to the remote shard host to initialize the connection as coming from mongos.
* NOTE: This initialization is *best-effort only*. Operations which wish to correctly version
* must send the namespace.
*
* Config servers are special and are not (unless otherwise a shard) kept up to date with this
* protocol. This is safe so long as config servers only contain unversioned collections.
*
* It is an error to call checkShardVersion with an unversionable connection (isVersionableCB).
*
* @return true if we contacted the remote host
*/
bool checkShardVersion(DBClientBase* conn_in,
const string& ns,
ChunkManagerPtr refManager,
bool authoritative,
int tryNumber) {
// TODO: cache, optimize, etc...
// Empty namespaces are special - we require initialization but not versioning
if (ns.size() == 0) {
return initShardVersionEmptyNS(conn_in);
}
auto status = grid.catalogCache()->getDatabase(nsToDatabase(ns));
if (!status.isOK()) {
return false;
}
shared_ptr<DBConfig> conf = status.getValue();
DBClientBase* conn = getVersionable(conn_in);
verify(conn); // errors thrown above
unsigned long long officialSequenceNumber = 0;
ShardPtr primary;
ChunkManagerPtr manager;
if (authoritative)
conf->getChunkManagerIfExists(ns, true);
conf->getChunkManagerOrPrimary(ns, manager, primary);
if (manager) {
officialSequenceNumber = manager->getSequenceNumber();
}
const auto shard = grid.shardRegistry()->getShard(conn->getServerAddress());
uassert(ErrorCodes::ShardNotFound,
str::stream() << conn->getServerAddress() << " is not recognized as a shard",
shard);
// Check this manager against the reference manager
if (manager) {
if (refManager && !refManager->compatibleWith(*manager, shard->getId())) {
const ChunkVersion refVersion(refManager->getVersion(shard->getId()));
const ChunkVersion currentVersion(manager->getVersion(shard->getId()));
string msg(str::stream()
<< "manager (" << currentVersion.toString() << " : "
<< manager->getSequenceNumber() << ") "
<< "not compatible with reference manager (" << refVersion.toString()
<< " : " << refManager->getSequenceNumber() << ") "
<< "on shard " << shard->getId() << " (" << shard->getConnString().toString()
<< ")");
throw SendStaleConfigException(ns, msg, refVersion, currentVersion);
}
} else if (refManager) {
string msg(str::stream() << "not sharded ("
<< ((manager.get() == 0) ? string("<none>") : str::stream()
<< manager->getSequenceNumber())
<< ") but has reference manager ("
<< refManager->getSequenceNumber() << ") "
<< "on conn " << conn->getServerAddress() << " ("
<< conn_in->getServerAddress() << ")");
throw SendStaleConfigException(
ns, msg, refManager->getVersion(shard->getId()), ChunkVersion::UNSHARDED());
}
// Do not send setShardVersion to collections on the config servers - this causes problems
// when config servers are also shards and get SSV with conflicting names.
// TODO: Make config servers regular shards
if (primary && primary->getId() == "config") {
return false;
}
// Has the ChunkManager been reloaded since the last time we updated the shard version over
// this connection? If we've never updated the shard version, do so now.
unsigned long long sequenceNumber = 0;
if (connectionShardStatus.getSequence(conn, ns, &sequenceNumber)) {
if (sequenceNumber == officialSequenceNumber) {
//.........这里部分代码省略.........
示例6: checkShardVersion
/**
* @return true if had to do something
*/
bool checkShardVersion( DBClientBase& conn_in , const string& ns , bool authoritative , int tryNumber ) {
// TODO: cache, optimize, etc...
WriteBackListener::init( conn_in );
DBConfigPtr conf = grid.getDBConfig( ns );
if ( ! conf )
return false;
DBClientBase* conn = getVersionable( &conn_in );
assert(conn); // errors thrown above
unsigned long long officialSequenceNumber = 0;
ChunkManagerPtr manager;
const bool isSharded = conf->isSharded( ns );
if ( isSharded ) {
manager = conf->getChunkManagerIfExists( ns , authoritative );
// It's possible the chunk manager was reset since we checked whether sharded was true,
// so must check this here.
if( manager ) officialSequenceNumber = manager->getSequenceNumber();
}
// has the ChunkManager been reloaded since the last time we updated the connection-level version?
// (ie., last time we issued the setShardVersions below)
unsigned long long sequenceNumber = connectionShardStatus.getSequence(conn,ns);
if ( sequenceNumber == officialSequenceNumber ) {
return false;
}
ShardChunkVersion version = 0;
if ( isSharded && manager ) {
version = manager->getVersion( Shard::make( conn->getServerAddress() ) );
}
if( version == 0 ){
LOG(0) << "resetting shard version of " << ns << " on " << conn->getServerAddress() << ", " <<
( ! isSharded ? "no longer sharded" :
( ! manager ? "no chunk manager found" :
"version is zero" ) ) << endl;
}
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: " << result << endl;
connectionShardStatus.setSequence( conn , ns , officialSequenceNumber );
return true;
}
LOG(1) << " setShardVersion failed!\n" << result << endl;
if ( result["need_authoritative"].trueValue() )
massert( 10428 , "need_authoritative set but in authoritative mode already" , ! authoritative );
if ( ! authoritative ) {
checkShardVersion( *conn , ns , 1 , tryNumber + 1 );
return true;
}
if ( result["reloadConfig"].trueValue() ) {
if( result["version"].timestampTime() == 0 ){
// reload db
conf->reload();
}
else {
// reload config
conf->getChunkManager( ns , true );
}
}
const int maxNumTries = 7;
if ( tryNumber < maxNumTries ) {
LOG( tryNumber < ( maxNumTries / 2 ) ? 1 : 0 )
<< "going to retry checkShardVersion host: " << conn->getServerAddress() << " " << result << endl;
sleepmillis( 10 * tryNumber );
checkShardVersion( *conn , ns , true , tryNumber + 1 );
return true;
}
string errmsg = str::stream() << "setShardVersion failed host: " << conn->getServerAddress() << " " << result;
log() << " " << errmsg << endl;
massert( 10429 , errmsg , 0 );
return true;
}