Spark is a memory-based computing engine. All Sparki program data in the running process can only be stored in memory
The following provides a variety of Redist optimization practices, which option is wrong?
In order to consider performance optimization, it is recommended to deploy LdapServeri and KrbServer on the same node in all clusters.
HDFSmiddle,piece(BlocThe size of k) is much larger than the smallest singleYuan,can be minimalchangeSearchingsiteout of the box.
Redis adopts a non-central self-organizing structure. Nodes use the Gossip protocol to exchange node status information.
When the Hive service status is displayed as Bad on the Fusioninsight Manager interface, what are the possible reasons?
Which of the following destinations can Fusioninsight HD Loader export HDFS data to?
ElWhat processing capabilities does asticSearch have for structured, semi-structured, and unstructured data?
In the Fusionlnsight HD product, a typical Kafka cluster contains several Producers, several Borkers, several Consumers and a Zookeeper cluster
Flink provides built-in state management that canput at workstatesave atFlin1k internal,AgainNo need to store it in an external systemsystem. SuchThe benefits include which of the following options
HiveThe operation process includes the following steps, please select the correct oneorder
1:HiveAccording to table classtypeUpdate HDFS or Hivedata in warehouse.
2:Client submits HQL command
3:YARNAllocate resources to applications in the cluster,andfor YARNH in the queueiveThe job enables authorization.
4: Tezexecute query
5:Hive via JDBCevencatchreturncheckquery result.
In the Fusioninsight HD system, if dirty data is generated while the Loader job is running, the status of the Loader job execution result must be failed.
During data stream processing,frequently used systemtimebetween(proceessing time)dofor an eventbetween. About Processing TimeWhich item is described incorrectly?
In the task scheduling of YARN. Once the ApplicationMasterE applies for the resource, it communicates with the corresponding ResourceManagerj and asks it to start the task
What does Fusioninsight HD HBase use by default as its underlying file storage system?
When a Regioni in HBaser performs the Split operation, what stage occurs in the process of actually dividing an HFile file into two Regions?
In the Fusioninsight Manager interface, which of the following options is not included in the operation of the loader?
In the WebHCat architecture, which of the following operations can users perform over the secure HTTPS protocol
In an MRS cluster, which of the following components does Spark mainly interact with?
When planning a FusionlnsightHD cluster, if the customer does not have performance requirements for functional testing and saves costs, the management node, control node, and data node can be deployed together. How many nodes are required at least?
Which of the following options does the main role of Zookeeper in distributed applications not include?
RowKey of a table in HBase:Divide the SplitKey into 9, e, a, z. How many Regions does this table have?
Which of the following descriptions about Hive log collection on the Fusioninsight Manager interface is incorrect?
In order to improve the fault tolerance of Kafka, Kafka supports the replication strategy of partition. Which of the following descriptions about Leader partition and Follower partition is wrong?
Which of the following descriptions about Fusioninsight CTBase is incorrect?
ACTBase's read and write data interface. It uniformly encapsulates the interface defined by the line, and automatically merges and parses cold fields without merging and interpretation in the application.
B. CTBase is a cluster table development framework based on HBasel
C. CTBase provides a set of WebUI for metadata definition,Provides a medical-only watch design tool to reduce the difficulty of watch design
D. CTBase's java API provides a set of interfaces for HBasej connection pool management. Internal connection sharing is performed to reduce the difficulty of client application development.
A user information table meg is saved in HBaser of Fusioninsight HD_table, Rowkey is the user id, one of which is the name of the user, now write three KeyValues to this column in sequence:001:Li, 001:Mary001:Lily, may I ask scanmeg_table', (VERSION=>2) which pieces of data will be returned?
Existing server.channelsa=ch1, set the Channel type to File Channel, which of the following configurations is correct?
When HBasel is deployed in a Fusioninsight HD cluster with N nodes, it is recommended to deploy( )HMasteri process,( )A RegionServeri process.
When planning and deploying a Fusionlnsight cluster, it is recommended that the management node be best deployed( ), the control node needs to be deployed at least( )Piece,Data nodes need to be deployed at least( )Piece.
In the Fusioninsight product, which of the following descriptions about kafka's topicl is incorrect?
Which of the following is not a characteristic of the MapReduce component in Hadoopl?
RDD has Transformation and Action operators. Which of the following belongs to the Action operator?
When the F1ume process is cascaded, which of the following sink types are used to receive the messages sent by the previous hop Flume?
Which of the following statements about atomicity in Zooeeper's key features is correct?
What can the unified certification management system of the new mainstream merchants consist of?
The following descriptions about FusionInsight multi-tenant management are correct
The overall process of Kafka Produceri reading data is that the Producer connects to any surviving Broker, requests the leader metadata information of the specified topic and partition, and then directly connects with the corresponding Brokerl to publish the data.
In the MRS interface, Loader can specify a variety of different data sources, configuration data cleaning and conversion steps, and configure cluster storage systems, etC. .
Huawei has extensive experience in big data solutions in various industries such as finance, public security, railways, and government affairs.
HiveManaged tables and external tables can be created, which of the following descriptions is correct for both types of tables?
Similar to Spark Streaming, Flink is an event-driven real-time streaming system
In the Fusioninsight HD product, a typical kafka cluster contains several producers, thousands of consumers and a zookeeper cluster?
When a MapKeduce program runs, the Map? ?malfunction. Which of the following options describe this task correctly?
HashThe value of type stores the mapping of fields and field values, and fields and field values can only be( )
kafka Distributed message delivery is based on reliable message queues. Which of the following two main message delivery patterns are included?
Elastic SearchofSowleadCanbystoragein a variety ofstorage classtype,andthe followingwherekind of storagekindtypebranchhold?
When Solr creates CollectionE, it is recommended to select the routing algorithm as compositld Router, then the Collection can expand shard.
About HDFSThe function of the NameNode, which one of the following descriptions is wrong?
The streaming client shell command in the FusionInsight HD system fails to view the topology or submit the topology. Which of the following positioning methods are correct?
In the Output stage, Structured Streaming can define different data writing methods, including which of the following methods?
AAppend Mode
B. Update Mode
C. General Mode
D. Ccomplete Mode
Which parts of the data need to be read to execute the HBase data reading business?
Are the following descriptions correct about the HBase file storage module (HBase FileStream, HFS for short)?
Which of the following functions can the kafka-clustermirroring tool implement?
Hive is a data warehouse software based on hadoopE, which can query and manage PB-level distributed data. Which of the following descriptions about Hive features is incorrect?( )
HDFS of HadoopE is a distributed file system. Which of the following application scenarios is suitable for data storage and management?
To enable the log aggregation function of the Yam component in the Hadoop platform, which parameter needs to be configured?