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When the Fusioninsight HD cluster is deployed in a three-layer network, it is recommended that the management node, control node, and data node be installed in different network segments to improve reliability.
The capacity scheduler is allocating resources. There are two queues Q1 and Q2 at the same level, and their capacities are both 30. Among them, Q1 has used 8 and Q2 has used 14, and resources will be allocated to Q1 first.
P? ?need? ?receive? ?Confirmation issued after? ?signal, when setting the MC?numbered?How many times means at least used? ?write?Le?, but does not require writing? ?write?
In the Fusionlnsight HD product, a typical Kafka cluster contains several Producers, several Borkers, several Consumers and a Zookeeper cluster
The reliability of flume's data transmission means that in the process of data transmission, flume can automatically switch to another route to continue transmission when the next-hop flume node fails or the data is received abnormally.
If there are only Default, QueueA and QueueB sub-queues in the YARNU group, then their capacities are allowed to be set to 60%, 25%, and 22% respectively.
In Hive architecture, ( ) groupPiece is responsible for table, columnand Partition etC. yuandataRead, write and update operations
Similar to Spark Streaming, Flink is an event-driven real-time streaming system
Which of the following descriptions about the deployment of big data components on Kunpeng and x86 servers is correct?
In Fusioninsight HD, which of the following is not a flow control feature of Hive
Which of the following descriptions about the functions of HMaster in HBase are correct?
The compatibility of F1ink is reflected in which of the following aspects?
In the process of using Flume to transmit data, in order to prevent data loss due to the restart of the Flume process. Which of the following Channel types can be used
FusionInsight Hadoop:In the cluster, the cluster size has 70 nodes. If the recommended deployment scheme is adopted, what partitions may exist on the management node?
In the HDFS federated environment, which of the following contents are included in the NameSpace
Which components in FusioninsightHD can Zookeeper provide distributed management support for?
What are the key features of Streaming in Huawei's big data product Fusioninsight HD?
Which of the following statements about Zookeeper's Leaderi election is correct?
The following statements about the reliability of Fusioninsight network security are correct:
Hadoop:When the scale of the cluster is large, the distribution of data will be very critical. Users need to decide whether to expand the cluster and whether the data needs to be balanced according to the data distribution. The following statements about Fusioninsight resource distribution monitoring are correct:
Which of the following options for providing multiple Redis1 optimizations is wrong?
As shown in the figure, which of the following options are wide dependencies
YARN manages cluster resources through ResourceManager. What are its main functions?
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?
When the Hive service status is displayed as Bad on the Fusioninsight Manager interface, what are the possible reasons?
What are the correct understandings and descriptions of the main features of big data?
What are the storage formats supported by Hive in the Fusioninsight HD system?
After submitting the topology using the Streaming client shell command in the Fusioninsight HD system, use Strom The UI view shows that the topology has not processed data for a long time. What are the possible reasons?
In Hadoop, if yarn.scheduler.capacity.root.QueueA. minimum-user-limitpercent is set to 50, which of the following statements is wrong?
The data node is the working node of HDFS. Which of the following are its functions? (multiple choice)
What are the main characteristics of big data analysis related technologies?
Which of the following scenarios in HBase will trigger the F1ush operation?
Is the description of the role of the standby NameNode correct in the HDFS system?
To reduce the amount of data written to disk, mapreduce supports compressing MOF (mapoutfile) before writing.
YarnWhen doing resource scheduling, maptaak and reduceTask are run in( )middle.
The size of the memory allocated by YARN to Containerb in the Hadoop system, which can be set by the parameter yarn.app.mapreduceam.resource.mb
Which of the following is not a mandatory option when creating a Loader job?
systemDuring the authentication process, all Kerbero evidence,BagContains the user's password. The user's affiliated information needs to be downloaded from( )Obtain.
In the Hadoop system, if the backup factor of the HDFS file system is 3, then each time MapReduce runs a task, it must transfer the file segments to be processed from 3 machines with replicas.
In the task scheduling process of YARN, which of the following is the task that the ApplicationMaster is responsible for?
If the physical memory utilization of some Containers exceeds the configured memory threshold, but the total memory utilization of all Containers does not exceed the set NodeManager1 memory threshold, then the Containert with excessive memory usage can still continue to run.
ChannelE acts like a queue and is used to temporarily cache incoming data. When the sink successfully sends the data to the next-hop Channel or the final destination, the data will be removed from the Channel
Hive is a data warehouse processing tool that uses the SQL-like HiveQL language to implement data query functions. All Hive data is stored in HDFS.
When importing data into a Hive table, the validity of the data will not be checked, but only when the data is read.
Generated when RDDs have width and narrow dependencies ( ), which reduces cluster performance.
A Key Value format in the HBasel data file HFiler contains Key; Value, TimeStamp, KeyType, etC.
By configuring which of the following parameters can the logs generated in Kafkal be cleaned up?
FlinkWhich of the following three types of windows can be divided into the following three types of windows according to different implementation principles?
F1ink is suitable for applications with high concurrent data processing and millisecond-level delay
What is the module used to manage the active and standby status of the Loader Server process in Loader?
The picture below shows Sparke&MapReduce performance comparison data, it can be concluded that compared with MapReducei computing, Spark uses( )resources, get( )double the performance?
Which of the descriptions of ordinary tables and external tables in Hive is incorrect?
Which of the following is not a mandatory option when creating a Loader job?
Regarding the basic operation of Hive table building, which is the correct description?
Which two roles are responsible for the active and standby status management of HDFS NameNode nodes and the merging of metadata files?
When deploying Fusioninsight HD, how many FlumeServer nodes are recommended to be deployed in the same cluster?
F1ink in( )interface for streaming data processing,( )interface for batch processing?
When installing the Streaming component of Fusioninsight HD, the Nimbus role requires several nodes to be installed
When the number of nodes in the Zookeeper cluster is 5 nodes, how many nodes are the disaster recovery capabilities of the cluster equivalent to?
Which of the following is not included in the schemai authentication method of Zookeeper?
Which instance must the Loader instance be deployed with in FusionlnsightHD?
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?
SoIrCloud mode is cluster mode. In this modeSWhich of the following services does the olr server strongly depend on?
Which of the following commands can be used to clear the data of all databases under the Redis instance?
FusionlnsightHD uses the HBase client to write 10 pieces of data in batches. A Regionserver node contains 2 Regions of the table, A and B, respectively. Two of the 10 pieces of data belong to A. 4 belong to B. Clearly write How many RPC requests do I need to send to the Regionserver to enter these 10 pieces of data?
Which of the following is not a role or service involved in the process of reading data in HBasei?
During the data collection process of F1ume, the following options can filter and modify the data:
TESTED 03 May 2024