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in events per second), average scheduling delay (measured in milliseconds), average execution time (measured in milliseconds), and average total delay (measured in milliseconds) of the current Streaming application.
Upgraded the node scaling function to support multiple master nodes in a cluster. Supported the execution of bootstrap scripts as user root.
For details about operations on clusters with Kerberos authentication disabled, see Phoenix Command Line: Download the Phoenix binary package from the official website (https://phoenix.apache.org/download.html), and upload it to any Master node in the cluster.
Upload the configuration file to the /opt/Bigdata/MRS_Current/1_14_Coordinator/etc/catalog/ directory on the Master node (where the Coordinator instance resides) and the /opt/Bigdata/MRS_Current/1_14_Worker/etc/catalog/ directory on the Core node (depending on the actual directory
Use the client on a Master node.
For example, a standard image Windows Server 2012 R2 Standard 64bit(40GB). For details about other configuration parameters, see Purchasing an ECS with Customized Configurations.
Prerequisites The ECS corresponding to the server must be in the same VPC as the MRS cluster's Master node, and the Master node must be able to access the server's IP address and specified port.
in events per second), average scheduling delay (measured in milliseconds), average execution time (measured in milliseconds), and average total delay (measured in milliseconds) of the current Streaming application.
If the data source is GaussDB(DWS), add --driver com.xxx.gauss200.jdbc.Driver to the CLI. Figure 3 Configuration of the --driver parameter when the data source is GaussDB(DWS) For other databases, configure the --driver parameter based on site requirements.
After permission assignment, MRS creates an agency named mrs_admin_agency in Identity and Access Management (IAM). After the agency is created, do not modify or delete it.
Prerequisites The ECS corresponding to the server must be in the same VPC as the MRS cluster's Master node, and the Master node must be able to access the server's IP address and specified port.
For how to fully update the original client of the active and standby master nodes, see Updating Client Configurations (Version 2.x or Earlier). For details about how to fully install the clients you set up, see Installing a Client (MRS 2.x or Earlier).
For how to fully update the original client of the active and standby master nodes, see Updating Client Configurations (Version 2.x or Earlier). For details about how to fully install the clients you set up, see Installing a Client (MRS 2.x or Earlier).
Figure 11 RDD operation The data and operation model of RDD are quite different from those of Scala. val file = sc.textFile("hdfs://...") val errors = file.filter(_.contains("ERROR")) errors.cache() errors.count() The textFile operator reads log files from the HDFS and returns files
Figure 2 RDD operation The data and operation model of RDD are quite different from those of Scala. val file = sc.textFile("hdfs://...") val errors = file.filter(_.contains("ERROR")) errors.cache() errors.count() The textFile operator reads log files from the HDFS and returns file
Figure 2 RDD operation The data and operation model of RDD are quite different from those of Scala. val file = sc.textFile("hdfs://...") val errors = file.filter(_.contains("ERROR")) errors.cache() errors.count() The textFile operator reads log files from the HDFS and returns file
Log in to the server where the client is to be installed as the client installation user.
(SessionManager.java:314) ... 12 more Cause Analysis Heavy service traffic causes the number of connections to one HiveServer node to exceed 200, and the maximum number of connections to HiveServer needs to be increased.
Only letters, digits, hyphens (-), and underscores (_) are allowed. Rule names must be unique in a node group. Default value N/A description No String Explanation Description about an auto scaling rule.
group (Master node group for short) Number of nodes: 3 Node specifications: c6.4xlarge.4 (16 vCPUs | 64 GB) System disk: ultra-high I/O and 100 GB Data disk: ultra-high I/O and 200 GB core_node_analysis_group node group (Core node group for short) Number of nodes: 2 Node specifications
