Esempio n. 1
0
 bool run(OperationContext* txn,
          const string& db,
          BSONObj& cmdObj,
          int,
          string& errmsg,
          BSONObjBuilder& result,
          bool fromRepl) {
     LastError* le = lastError.get();
     verify(le);
     le->reset();
     return true;
 }
Esempio n. 2
0
    bool ClusterWriteCmd::run( const string& dbName,
                               BSONObj& cmdObj,
                               int options,
                               string& errMsg,
                               BSONObjBuilder& result,
                               bool ) {

        BatchedCommandRequest request( _writeType );
        BatchedCommandResponse response;

        // TODO: if we do namespace parsing, push this to the type
        if ( !request.parseBSON( cmdObj, &errMsg ) || !request.isValid( &errMsg ) ) {

            // Batch parse failure
            response.setOk( false );
            response.setErrCode( ErrorCodes::FailedToParse );
            response.setErrMessage( errMsg );

            dassert( response.isValid( &errMsg ) );
        }
        else {

            // Fixup the namespace to be a full ns internally
            NamespaceString nss( dbName, request.getNS() );
            request.setNS( nss.ns() );
            clusterWrite( request, &response, true /* autosplit */ );
        }

        // Populate the lastError object based on the write
        dassert( response.isValid( NULL ) );
        LastError* lastErrorForRequest = lastError.get( true /* create */ );
        dassert( lastErrorForRequest );
        lastErrorForRequest->reset();
        batchErrorToLastError( request, response, lastErrorForRequest );

        // TODO
        // There's a pending issue about how to report response here. If we use
        // the command infra-structure, we should reuse the 'errmsg' field. But
        // we have already filed that message inside the BatchCommandResponse.
        // return response.getOk();
        result.appendElements( response.toBSON() );
        return true;
    }
Esempio n. 3
0
    bool ClusterWriteCmd::run(OperationContext* txn, const string& dbName,
                               BSONObj& cmdObj,
                               int options,
                               string& errMsg,
                               BSONObjBuilder& result,
                               bool ) {

        BatchedCommandRequest request( _writeType );
        BatchedCommandResponse response;
        ClusterWriter writer( true /* autosplit */, 0 /* timeout */ );

        // NOTE: Sometimes this command is invoked with LE disabled for legacy writes
        LastError* cmdLastError = lastError.get( false );

        {
            // Disable the last error object for the duration of the write
            LastError::Disabled disableLastError( cmdLastError );

            // TODO: if we do namespace parsing, push this to the type
            if ( !request.parseBSON( cmdObj, &errMsg ) || !request.isValid( &errMsg ) ) {

                // Batch parse failure
                response.setOk( false );
                response.setErrCode( ErrorCodes::FailedToParse );
                response.setErrMessage( errMsg );
            }
            else {

                // Fixup the namespace to be a full ns internally
                NamespaceString nss( dbName, request.getNS() );
                request.setNS( nss.ns() );

                writer.write( request, &response );
            }

            dassert( response.isValid( NULL ) );
        }

        if ( cmdLastError ) {
            // Populate the lastError object based on the write response
            cmdLastError->reset();
            batchErrorToLastError( request, response, cmdLastError );
        }

        size_t numAttempts;
        if ( !response.getOk() ) {
            numAttempts = 0;
        } else if ( request.getOrdered() && response.isErrDetailsSet() ) {
            numAttempts = response.getErrDetailsAt(0)->getIndex() + 1; // Add one failed attempt
        } else {
            numAttempts = request.sizeWriteOps();
        }

        // TODO: increase opcounters by more than one
        if ( _writeType == BatchedCommandRequest::BatchType_Insert ) {
            for( size_t i = 0; i < numAttempts; ++i ) {
                globalOpCounters.gotInsert();
            }
        } else if ( _writeType == BatchedCommandRequest::BatchType_Update ) {
            for( size_t i = 0; i < numAttempts; ++i ) {
                globalOpCounters.gotUpdate();
            }
        } else if ( _writeType == BatchedCommandRequest::BatchType_Delete ) {
            for( size_t i = 0; i < numAttempts; ++i ) {
                globalOpCounters.gotDelete();
            }
        }

        // Save the last opTimes written on each shard for this client, to allow GLE to work
        if ( ClientInfo::exists() && writer.getStats().hasShardStats() ) {
            ClientInfo* clientInfo = ClientInfo::get( NULL );
            clientInfo->addHostOpTimes( writer.getStats().getShardStats().getWriteOpTimes() );
        }

        // TODO
        // There's a pending issue about how to report response here. If we use
        // the command infra-structure, we should reuse the 'errmsg' field. But
        // we have already filed that message inside the BatchCommandResponse.
        // return response.getOk();
        result.appendElements( response.toBSON() );
        return true;
    }