void _delete( Request& r , DbMessage& d, ChunkManager* manager ){ int flags = d.pullInt(); bool justOne = flags & 1; uassert( 10203 , "bad delete message" , d.moreJSObjs() ); BSONObj pattern = d.nextJsObj(); vector<Chunk*> chunks; manager->getChunksForQuery( chunks , pattern ); cout << "delete : " << pattern << " \t " << chunks.size() << " justOne: " << justOne << endl; if ( chunks.size() == 1 ){ doWrite( dbDelete , r , chunks[0]->getShard() ); return; } if ( justOne && ! pattern.hasField( "_id" ) ) throw UserException( 8015 , "can only delete with a non-shard key pattern if can delete as many as we find" ); set<string> seen; for ( vector<Chunk*>::iterator i=chunks.begin(); i!=chunks.end(); i++){ Chunk * c = *i; if ( seen.count( c->getShard() ) ) continue; seen.insert( c->getShard() ); doWrite( dbDelete , r , c->getShard() ); } }
void _update( Request& r , DbMessage& d, ChunkManagerPtr manager ) { int flags = d.pullInt(); BSONObj query = d.nextJsObj(); uassert( 13506 , "$atomic not supported sharded" , query["$atomic"].eoo() ); uassert( 10201 , "invalid update" , d.moreJSObjs() ); BSONObj toupdate = d.nextJsObj(); BSONObj chunkFinder = query; bool upsert = flags & UpdateOption_Upsert; bool multi = flags & UpdateOption_Multi; uassert( 10202 , "can't mix multi and upsert and sharding" , ! ( upsert && multi ) ); if (upsert) { uassert(8012, "can't upsert something without shard key", (manager->hasShardKey(toupdate) || (toupdate.firstElement().fieldName()[0] == '$' && manager->hasShardKey(query)))); BSONObj key = manager->getShardKey().extractKey(query); BSONForEach(e, key) { uassert(13465, "shard key in upsert query must be an exact match", getGtLtOp(e) == BSONObj::Equality); } }
void _delete( Request& r , DbMessage& d, ShardManager* manager ){ int flags = d.pullInt(); bool justOne = flags & 1; uassert( "bad delete message" , d.moreJSObjs() ); BSONObj pattern = d.nextJsObj(); if ( manager->hasShardKey( pattern ) ){ Shard& s = manager->findShard( pattern ); doWrite( dbDelete , r , s.getServer() ); return; } if ( ! justOne && ! pattern.hasField( "_id" ) ) throw UserException( "can only delete with a non-shard key pattern if can delete as many as we find" ); vector<Shard*> shards; manager->getShardsForQuery( shards , pattern ); set<string> seen; for ( vector<Shard*>::iterator i=shards.begin(); i!=shards.end(); i++){ Shard * s = *i; if ( seen.count( s->getServer() ) ) continue; seen.insert( s->getServer() ); doWrite( dbDelete , r , s->getServer() ); } }
void _delete( Request& r , DbMessage& d, ChunkManagerPtr manager ){ int flags = d.pullInt(); bool justOne = flags & 1; uassert( 10203 , "bad delete message" , d.moreJSObjs() ); BSONObj pattern = d.nextJsObj(); set<Shard> shards; int left = 5; while ( true ){ try { manager->getShardsForQuery( shards , pattern ); log(2) << "delete : " << pattern << " \t " << shards.size() << " justOne: " << justOne << endl; if ( shards.size() == 1 ){ doWrite( dbDelete , r , *shards.begin() ); return; } break; } catch ( StaleConfigException& e ){ if ( left <= 0 ) throw e; left--; log() << "delete failed b/c of StaleConfigException, retrying " << " left:" << left << " ns: " << r.getns() << " patt: " << pattern << endl; r.reset( false ); shards.clear(); manager = r.getChunkManager(); } } if ( justOne && ! pattern.hasField( "_id" ) ) throw UserException( 8015 , "can only delete with a non-shard key pattern if can delete as many as we find" ); for ( set<Shard>::iterator i=shards.begin(); i!=shards.end(); i++){ int * x = (int*)(r.d().afterNS()); x[0] |= RemoveOption_Broadcast; doWrite( dbDelete , r , *i , false ); } }
void _update( Request& r , DbMessage& d, ShardManager* manager ){ int flags = d.pullInt(); BSONObj query = d.nextJsObj(); uassert( "invalid update" , d.moreJSObjs() ); BSONObj toupdate = d.nextJsObj(); bool upsert = flags & 1; if ( upsert && ! manager->hasShardKey( toupdate ) ) throw UserException( "can't upsert something without shard key" ); if ( ! manager->hasShardKey( query ) ) throw UserException( "can't do update with query that doesn't have the shard key" ); if ( manager->hasShardKey( toupdate ) && manager->getShardKey().compare( query , toupdate ) ) throw UserException( "change would move shards!" ); Shard& s = manager->findShard( toupdate ); doWrite( dbUpdate , r , s.getServer() ); s.splitIfShould( d.msg().data->dataLen() ); }
void _update( Request& r , DbMessage& d, ChunkManager* manager ){ int flags = d.pullInt(); BSONObj query = d.nextJsObj(); uassert( 10201 , "invalid update" , d.moreJSObjs() ); BSONObj toupdate = d.nextJsObj(); BSONObj chunkFinder = query; bool upsert = flags & UpdateOption_Upsert; bool multi = flags & UpdateOption_Multi; if ( multi ) uassert( 10202 , "can't mix multi and upsert and sharding" , ! upsert ); if ( upsert && !(manager->hasShardKey(toupdate) || (toupdate.firstElement().fieldName()[0] == '$' && manager->hasShardKey(query)))) { throw UserException( 8012 , "can't upsert something without shard key" ); } bool save = false; if ( ! manager->hasShardKey( query ) ){ if ( multi ){ } else if ( query.nFields() != 1 || strcmp( query.firstElement().fieldName() , "_id" ) ){ throw UserException( 8013 , "can't do update with query that doesn't have the shard key" ); } else { save = true; chunkFinder = toupdate; } } if ( ! save ){ if ( toupdate.firstElement().fieldName()[0] == '$' ){ // TODO: check for $set, etc.. on shard key } else if ( manager->hasShardKey( toupdate ) && manager->getShardKey().compare( query , toupdate ) ){ throw UserException( 8014 , "change would move shards!" ); } } if ( multi ){ vector<Chunk*> chunks; manager->getChunksForQuery( chunks , chunkFinder ); set<string> seen; for ( vector<Chunk*>::iterator i=chunks.begin(); i!=chunks.end(); i++){ Chunk * c = *i; if ( seen.count( c->getShard() ) ) continue; doWrite( dbUpdate , r , c->getShard() ); seen.insert( c->getShard() ); } } else { Chunk& c = manager->findChunk( chunkFinder ); doWrite( dbUpdate , r , c.getShard() ); c.splitIfShould( d.msg().data->dataLen() ); } }
void _update( Request& r , DbMessage& d, ChunkManagerPtr manager ){ int flags = d.pullInt(); BSONObj query = d.nextJsObj(); uassert( 10201 , "invalid update" , d.moreJSObjs() ); BSONObj toupdate = d.nextJsObj(); BSONObj chunkFinder = query; bool upsert = flags & UpdateOption_Upsert; bool multi = flags & UpdateOption_Multi; uassert( 10202 , "can't mix multi and upsert and sharding" , ! ( upsert && multi ) ); if ( upsert && !(manager->hasShardKey(toupdate) || (toupdate.firstElement().fieldName()[0] == '$' && manager->hasShardKey(query)))) { throw UserException( 8012 , "can't upsert something without shard key" ); } bool save = false; if ( ! manager->hasShardKey( query ) ){ if ( multi ){ } else if ( strcmp( query.firstElement().fieldName() , "_id" ) || query.nFields() != 1 ){ throw UserException( 8013 , "can't do non-multi update with query that doesn't have the shard key" ); } else { save = true; chunkFinder = toupdate; } } if ( ! save ){ if ( toupdate.firstElement().fieldName()[0] == '$' ){ BSONObjIterator ops(toupdate); while(ops.more()){ BSONElement op(ops.next()); if (op.type() != Object) continue; BSONObjIterator fields(op.embeddedObject()); while(fields.more()){ const string field = fields.next().fieldName(); uassert(13123, "Can't modify shard key's value", ! manager->getShardKey().partOfShardKey(field)); } } } else if ( manager->hasShardKey( toupdate ) ){ uassert( 8014, "change would move shards!", manager->getShardKey().compare( query , toupdate ) == 0 ); } else { uasserted(12376, "shard key must be in update object"); } } if ( multi ){ set<Shard> shards; manager->getShardsForQuery( shards , chunkFinder ); int * x = (int*)(r.d().afterNS()); x[0] |= UpdateOption_Broadcast; for ( set<Shard>::iterator i=shards.begin(); i!=shards.end(); i++){ doWrite( dbUpdate , r , *i , false ); } } else { int left = 5; while ( true ){ try { ChunkPtr c = manager->findChunk( chunkFinder ); doWrite( dbUpdate , r , c->getShard() ); c->splitIfShould( d.msg().header()->dataLen() ); break; } catch ( StaleConfigException& e ){ if ( left <= 0 ) throw e; left--; log() << "update failed b/c of StaleConfigException, retrying " << " left:" << left << " ns: " << r.getns() << " query: " << query << endl; r.reset( false ); manager = r.getChunkManager(); } } } }
void _update( Request& r , DbMessage& d, ChunkManagerPtr manager ){ int flags = d.pullInt(); BSONObj query = d.nextJsObj(); uassert( 10201 , "invalid update" , d.moreJSObjs() ); BSONObj toupdate = d.nextJsObj(); BSONObj chunkFinder = query; bool upsert = flags & UpdateOption_Upsert; bool multi = flags & UpdateOption_Multi; if ( multi ) uassert( 10202 , "can't mix multi and upsert and sharding" , ! upsert ); if ( upsert && !(manager->hasShardKey(toupdate) || (toupdate.firstElement().fieldName()[0] == '$' && manager->hasShardKey(query)))) { throw UserException( 8012 , "can't upsert something without shard key" ); } bool save = false; if ( ! manager->hasShardKey( query ) ){ if ( multi ){ } else if ( query.nFields() != 1 || strcmp( query.firstElement().fieldName() , "_id" ) ){ throw UserException( 8013 , "can't do update with query that doesn't have the shard key" ); } else { save = true; chunkFinder = toupdate; } } if ( ! save ){ if ( toupdate.firstElement().fieldName()[0] == '$' ){ BSONObjIterator ops(toupdate); while(ops.more()){ BSONElement op(ops.next()); if (op.type() != Object) continue; BSONObjIterator fields(op.embeddedObject()); while(fields.more()){ const string field = fields.next().fieldName(); uassert(13123, "Can't modify shard key's value", ! manager->getShardKey().partOfShardKey(field)); } } } else if ( manager->hasShardKey( toupdate ) ){ uassert( 8014, "change would move shards!", manager->getShardKey().compare( query , toupdate ) == 0 ); } else { uasserted(12376, "shard key must be in update object"); } } if ( multi ){ vector<shared_ptr<ChunkRange> > chunks; manager->getChunksForQuery( chunks , chunkFinder ); set<Shard> seen; for ( vector<shared_ptr<ChunkRange> >::iterator i=chunks.begin(); i!=chunks.end(); i++){ shared_ptr<ChunkRange> c = *i; if ( seen.count( c->getShard() ) ) continue; doWrite( dbUpdate , r , c->getShard() ); seen.insert( c->getShard() ); } } else { ChunkPtr c = manager->findChunk( chunkFinder ); doWrite( dbUpdate , r , c->getShard() ); c->splitIfShould( d.msg().header()->dataLen() ); } }