本文整理汇总了C++中ShardingState::gotShardHost方法的典型用法代码示例。如果您正苦于以下问题：C++ ShardingState::gotShardHost方法的具体用法？C++ ShardingState::gotShardHost怎么用？C++ ShardingState::gotShardHost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ShardingState的用法示例。
在下文中一共展示了ShardingState::gotShardHost方法的4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: run
bool run(const string& , BSONObj& cmdObj, string& errmsg, BSONObjBuilder& result, bool) {
lastError.disableForCommand();
ShardedConnectionInfo* info = ShardedConnectionInfo::get( true );
bool authoritative = cmdObj.getBoolField( "authoritative" );
string configdb = cmdObj["configdb"].valuestrsafe();
{
// configdb checking
if ( configdb.size() == 0 ) {
errmsg = "no configdb";
return false;
}
if ( shardingState.enabled() ) {
if ( configdb != shardingState.getConfigServer() ) {
errmsg = "specified a different configdb!";
return false;
}
}
else {
if ( ! authoritative ) {
result.appendBool( "need_authoritative" , true );
errmsg = "first setShardVersion";
return false;
}
shardingState.enable( configdb );
configServer.init( configdb );
}
}
if ( cmdObj["shard"].type() == String ) {
shardingState.gotShardName( cmdObj["shard"].String() );
shardingState.gotShardHost( cmdObj["shardHost"].String() );
}
{
// setting up ids
if ( cmdObj["serverID"].type() != jstOID ) {
// TODO: fix this
//errmsg = "need serverID to be an OID";
//return 0;
}
else {
OID clientId = cmdObj["serverID"].__oid();
if ( ! info->hasID() ) {
info->setID( clientId );
}
else if ( clientId != info->getID() ) {
errmsg = "server id has changed!";
return 0;
}
}
}
unsigned long long version = extractVersion( cmdObj["version"] , errmsg );
if ( errmsg.size() ) {
return false;
}
string ns = cmdObj["setShardVersion"].valuestrsafe();
if ( ns.size() == 0 ) {
errmsg = "need to speciy fully namespace";
return false;
}
const ConfigVersion oldVersion = info->getVersion(ns);
const ConfigVersion globalVersion = shardingState.getVersion(ns);
if ( oldVersion > 0 && globalVersion == 0 ) {
// this had been reset
info->setVersion( ns , 0 );
}
if ( version == 0 && globalVersion == 0 ) {
// this connection is cleaning itself
info->setVersion( ns , 0 );
return true;
}
if ( version == 0 && globalVersion > 0 ) {
if ( ! authoritative ) {
result.appendBool( "need_authoritative" , true );
result.append( "ns" , ns );
result.appendTimestamp( "globalVersion" , globalVersion );
result.appendTimestamp( "oldVersion" , oldVersion );
errmsg = "dropping needs to be authoritative";
return false;
}
log() << "wiping data for: " << ns << endl;
result.appendTimestamp( "beforeDrop" , globalVersion );
// only setting global version on purpose
// need clients to re-find meta-data
shardingState.resetVersion( ns );
info->setVersion( ns , 0 );
return true;
}
//.........这里部分代码省略.........
示例2: run
bool run(const string& , BSONObj& cmdObj, string& errmsg, BSONObjBuilder& result, bool){
// Debugging code for SERVER-1633. Commands have already a coarser timer for
// normal operation.
Timer timer;
vector<int> laps;
lastError.disableForCommand();
ShardedConnectionInfo* info = ShardedConnectionInfo::get( true );
bool authoritative = cmdObj.getBoolField( "authoritative" );
string configdb = cmdObj["configdb"].valuestrsafe();
{ // configdb checking
if ( configdb.size() == 0 ){
errmsg = "no configdb";
return false;
}
if ( shardingState.enabled() ){
if ( configdb != shardingState.getConfigServer() ){
errmsg = "specified a different configdb!";
return false;
}
}
else {
if ( ! authoritative ){
result.appendBool( "need_authoritative" , true );
errmsg = "first setShardVersion";
return false;
}
shardingState.enable( configdb );
configServer.init( configdb );
}
}
// SERVER-1633
laps.push_back( timer.millis() );
if ( cmdObj["shard"].type() == String ){
shardingState.gotShardName( cmdObj["shard"].String() );
shardingState.gotShardHost( cmdObj["shardHost"].String() );
}
{ // setting up ids
if ( cmdObj["serverID"].type() != jstOID ){
// TODO: fix this
//errmsg = "need serverID to be an OID";
//return 0;
}
else {
OID clientId = cmdObj["serverID"].__oid();
if ( ! info->hasID() ){
info->setID( clientId );
}
else if ( clientId != info->getID() ){
errmsg = "server id has changed!";
return 0;
}
}
}
// SERVER-1633
laps.push_back( timer.millis() );
unsigned long long version = extractVersion( cmdObj["version"] , errmsg );
if ( errmsg.size() ){
return false;
}
string ns = cmdObj["setShardVersion"].valuestrsafe();
if ( ns.size() == 0 ){
errmsg = "need to speciy fully namespace";
return false;
}
ConfigVersion& oldVersion = info->getVersion(ns);
ConfigVersion& globalVersion = shardingState.getVersion(ns);
if ( oldVersion > 0 && globalVersion == 0 ){
// this had been reset
oldVersion = 0;
}
if ( version == 0 && globalVersion == 0 ){
// this connection is cleaning itself
oldVersion = 0;
return 1;
}
// SERVER-1633
laps.push_back( timer.millis() );
if ( version == 0 && globalVersion > 0 ){
if ( ! authoritative ){
result.appendBool( "need_authoritative" , true );
result.appendTimestamp( "globalVersion" , globalVersion );
result.appendTimestamp( "oldVersion" , oldVersion );
errmsg = "dropping needs to be authoritative";
//.........这里部分代码省略.........
示例3: run
bool run(const string& , BSONObj& cmdObj, int, string& errmsg, BSONObjBuilder& result, bool) {
// Steps
// 1. check basic config
// 2. extract params from command
// 3. fast check
// 4. slow check (LOCKS)
// step 1
lastError.disableForCommand();
ShardedConnectionInfo* info = ShardedConnectionInfo::get( true );
// make sure we have the mongos id for writebacks
if ( ! checkMongosID( info , cmdObj["serverID"] , errmsg ) )
return false;
bool authoritative = cmdObj.getBoolField( "authoritative" );
// check config server is ok or enable sharding
if ( ! checkConfigOrInit( cmdObj["configdb"].valuestrsafe() , authoritative , errmsg , result ) )
return false;
// check shard name/hosts are correct
if ( cmdObj["shard"].type() == String ) {
shardingState.gotShardName( cmdObj["shard"].String() );
shardingState.gotShardHost( cmdObj["shardHost"].String() );
}
// Handle initial shard connection
if( cmdObj["version"].eoo() && cmdObj["init"].trueValue() ) {
result.append( "initialized", true );
return true;
}
// we can run on a slave up to here
if ( ! isMaster( "admin" ) ) {
result.append( "errmsg" , "not master" );
result.append( "note" , "from post init in setShardVersion" );
return false;
}
// step 2
string ns = cmdObj["setShardVersion"].valuestrsafe();
if ( ns.size() == 0 ) {
errmsg = "need to specify namespace";
return false;
}
const ConfigVersion version = ConfigVersion( extractVersion( cmdObj["version"] , errmsg ), OID() );
if ( errmsg.size() )
return false;
// step 3
const ConfigVersion oldVersion = info->getVersion(ns);
const ConfigVersion globalVersion = shardingState.getVersion(ns);
oldVersion.addToBSON( result, "oldVersion" );
if ( globalVersion.isSet() && version.isSet() ) {
// this means there is no reset going on an either side
// so its safe to make some assumptions
if ( version.isEquivalentTo( globalVersion ) ) {
// mongos and mongod agree!
if ( ! oldVersion.isEquivalentTo( version ) ) {
if ( oldVersion < globalVersion ) {
info->setVersion( ns , version );
}
else if ( authoritative ) {
// this means there was a drop and our version is reset
info->setVersion( ns , version );
}
else {
result.append( "ns" , ns );
result.appendBool( "need_authoritative" , true );
errmsg = "verifying drop on '" + ns + "'";
return false;
}
}
return true;
}
}
// step 4
// this is because of a weird segfault I saw and I can't see why this should ever be set
massert( 13647 , str::stream() << "context should be empty here, is: " << cc().getContext()->ns() , cc().getContext() == 0 );
Lock::GlobalWrite setShardVersionLock; // TODO: can we get rid of this??
if ( oldVersion.isSet() && ! globalVersion.isSet() ) {
// this had been reset
info->setVersion( ns , ShardChunkVersion( 0, OID() ) );
}
//.........这里部分代码省略.........
示例4: run
bool run(const string& , BSONObj& cmdObj, string& errmsg, BSONObjBuilder& result, bool) {
// Steps
// 1. check basic config
// 2. extract params from command
// 3. fast check
// 4. slow check (LOCKS)
// step 1
lastError.disableForCommand();
ShardedConnectionInfo* info = ShardedConnectionInfo::get( true );
bool authoritative = cmdObj.getBoolField( "authoritative" );
// check config server is ok or enable sharding
if ( ! checkConfigOrInit( cmdObj["configdb"].valuestrsafe() , authoritative , errmsg , result ) )
return false;
// check shard name/hosts are correct
if ( cmdObj["shard"].type() == String ) {
shardingState.gotShardName( cmdObj["shard"].String() );
shardingState.gotShardHost( cmdObj["shardHost"].String() );
}
// make sure we have the mongos id for writebacks
if ( ! checkMongosID( info , cmdObj["serverID"] , errmsg ) )
return false;
// step 2
string ns = cmdObj["setShardVersion"].valuestrsafe();
if ( ns.size() == 0 ) {
errmsg = "need to speciy namespace";
return false;
}
const ConfigVersion version = extractVersion( cmdObj["version"] , errmsg );
if ( errmsg.size() )
return false;
// step 3
const ConfigVersion oldVersion = info->getVersion(ns);
const ConfigVersion globalVersion = shardingState.getVersion(ns);
result.appendTimestamp( "oldVersion" , oldVersion );
if ( globalVersion > 0 && version > 0 ) {
// this means there is no reset going on an either side
// so its safe to make some assuptions
if ( version == globalVersion ) {
// mongos and mongod agree!
if ( oldVersion != version ) {
assert( oldVersion < globalVersion );
info->setVersion( ns , version );
}
return true;
}
}
// step 4
// this is because of a weird segfault I saw and I can't see why this should ever be set
massert( 13647 , str::stream() << "context should be empty here, is: " << cc().getContext()->ns() , cc().getContext() == 0 );
dblock setShardVersionLock; // TODO: can we get rid of this??
if ( oldVersion > 0 && globalVersion == 0 ) {
// this had been reset
info->setVersion( ns , 0 );
}
if ( version == 0 && globalVersion == 0 ) {
// this connection is cleaning itself
info->setVersion( ns , 0 );
return true;
}
if ( version == 0 && globalVersion > 0 ) {
if ( ! authoritative ) {
result.appendBool( "need_authoritative" , true );
result.append( "ns" , ns );
result.appendTimestamp( "globalVersion" , globalVersion );
errmsg = "dropping needs to be authoritative";
return false;
}
log() << "wiping data for: " << ns << endl;
result.appendTimestamp( "beforeDrop" , globalVersion );
// only setting global version on purpose
// need clients to re-find meta-data
shardingState.resetVersion( ns );
info->setVersion( ns , 0 );
return true;
}
if ( version < oldVersion ) {
errmsg = "this connection already had a newer version of collection '" + ns + "'";
//.........这里部分代码省略.........