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1T6-521 - Application Performance Analysis and Troubleshooting - Dump Information

Vendor : Network-General
Exam Code : 1T6-521
Exam Name : Application Performance Analysis and Troubleshooting
Questions and Answers : 120 Q & A
Updated On : December 7, 2018
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1T6-521 Questions and Answers

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1T6-521 Application Performance Analysis and Troubleshooting

Study Guide Prepared by Killexams.com Network-General Dumps Experts


Killexams.com 1T6-521 Dumps and Real Questions

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1T6-521 exam Dumps Source : Application Performance Analysis and Troubleshooting

Test Code : 1T6-521
Test Name : Application Performance Analysis and Troubleshooting
Vendor Name : Network-General
Q&A : 120 Real Questions

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Network-General Network-General Application Performance Analysis

network popular broadcasts Sniffer allotted four.6; most recent liberate of commercial enterprise community Instrumentation Enhances software evaluation Capabilities in high efficiency Networks | killexams.com Real Questions and Pass4sure dumps

SAN JOSE, Calif.--(enterprise WIRE)--July 18, 2005--community usual(TM) agency, the global chief in business community and utility performance evaluation, nowadays announced the commonplace availability of Sniffer(R) distributed 4.6 for the s4000 collection and s6040 platforms. The latest release of Sniffer distributed gives not obligatory application-layer visibility inside a Gigabit community environment.

The fashion toward information center consolidation and the expanding deployment of bandwidth-intensive applications are riding the demand for stronger efficiency in the core of the enterprise. due to this fact, IT organizations are impulsively deploying Gigabit know-how in the core to be certain ample throughput and response time for users throughout the business. This creates a need for network instrumentation that can deliver both network-layer and utility-layer visibility and evaluation of all essential site visitors within the Gigibit core community. network generic is assembly this starting to be market demand with the brand new Sniffer distributed solution.

"we're comfortable to peer the endured enhancements that network frequent is making to the Sniffer disbursed platform," stated Frank Lohse, community administrator at prosystems IT GmbH, in Bonn, Germany. "community time-honored recognizes that a transforming into variety of IT agencies -- including our personal -- deserve to have utility-layer visibility in a high-pace core network the place Gigabit Ethernet is deployed. The new version four.6 software will give that stage of visibility."

With the start of Sniffer dispensed 4.6, network typical continues to exhibit its leadership in network and application efficiency evaluation. in addition to presenting utility-layer visibility in a Gigabit ambiance, Sniffer distributed four.6 also offers a few different new aspects, together with:

-- Filtering enhancements for managing MPLS (Multi-Protocol Label Switching) traffic flows at Gigabit speeds

-- The s4100 E2GB and improved s6040 systems, which deliver "hardware-assisted" Gigabit Ethernet guide designed for high-pace, high-density environments corresponding to those on the community core

-- potent management utility that enables users to handle all Sniffer systems from a single console

-- improved assist for Modular Decode and professional Packs, obtainable to valued clientele with lively help contracts

Deployed in hundreds of agencies worldwide, Sniffer disbursed combines extensive protocol decodes, award-winning knowledgeable analysis expertise, and short- and lengthy-time period reporting into an impressive, modular and in your price range solution. These capabilities permit IT gurus to at once determine, video display, measure, manipulate, and get to the bottom of performance problems and bottlenecks -- before they have an effect on the efficiency of the enterprise. due to this fact, Sniffer dispensed helps to empower IT organizations, simplify network management tasks, and offer protection to the extended value and life of IT property.

About community ordinary corporation

community widely wide-spread(TM) business enterprise, headquartered in San Jose, California, is the international chief in enterprise network and application efficiency evaluation. The network regular portfolio carries resourceful utility options and intelligent home equipment, deployed on crucial networks links throughout the disbursed business. together, these solutions provide IT gurus with a unified view of community and application efficiency and enable swift identification and resolution of efficiency issues. For more tips on community typical, dial 408-571-5000 or go to www.networkgeneral.com.

be aware: network prevalent, Sniffer, and the network regularly occurring emblem are registered emblems or logos of community established organization and/or its affiliates in the united states and/or different international locations. only network widely wide-spread business enterprise makes Sniffer(R) company items. All other registered and unregistered logos herein are the sole property of their respective owners. (C)2005 community well-known agency. ALL RIGHTS RESERVED.


Sniffer updates nothing to sneeze at | killexams.com Real Questions and Pass4sure dumps

Andrew R. Hickey, news creator

still reeling from its messy breakup with application maker McAfee Inc., network prevalent Corp. hopes new developments to its Sniffer items proves as soon as and for all that the San Jose, Calif.-based mostly dealer is lower back.

community standard announced a couple of new updates to its commercial enterprise community administration and efficiency evaluation platform this week on the Sniffer person Summit in Miami.

leading the can charge is a new incarnation of the enterprise's statistics trap tool, the InfiniStream. edition 2.5 gives real-time, circulate-to-disk trap of Gigabit and 10/100 Ethernet, WAN and Asynchronous switch Mode (ATM) statistics. It also uses Sniffer decodes and expert evaluation. mixed, the capabilities deliver what network everyday calls "Retrospective evaluation," returned-in-time and real-time network and application evaluation performed by recording and examining site visitors over a few hours, days or weeks. The InfiniStream 2.5 stores up to four terabytes of facts.

The InfiniStream finds the foundation reasons of network performance problems and makes it possible for for troubleshooting on each topology, together with VoIP, spoke of Tom Bienkowski, network widely wide-spread's director of product management. It helps directors remedy efficiency complications extra straight away with out interruption, Bienkowski mentioned. InfiniStream 2.5 also integrates with different Sniffer tools, which enhances vogue analysis and ability planning-primarily based reporting.

along with the InfiniStream replace, network usual the day past additionally brought the Sniffer business Administrator 4.0, which makes it possible for centralized management, administration and security of Sniffer resources. It automates basic processes and permits IT administrators to configure lots of of alternatives on one Sniffer agent and then clone the configuration throughout other agents all over the commercial enterprise. When mixed with the device's capacity to automatically down load the working gadget and Sniffer updates and patches, the device ensures security and coverage compliance, Bienkowski spoke of.

The Sniffer business Administrator offers a single-console view throughout multiple home equipment, allowing single sign-on and administration of all Sniffer contraptions from one console, cutting down on time and doing away with the need for directors to bodily entry the Sniffer gadgets.

other bulletins made the day before today with the aid of network normal include:

  • The Sniffer MultiSegment Intelligence four.0, a device that detects inefficiencies on as much as eight network segments as site visitors flows between community facets. It lets administrators locate the place a problem is and examine whether it's a network or application flaw.
  • The Sniffer business Visualizer four.0, which offers visibility into the health and availability of purposes, LAN and WAN site visitors, and allows quick tuning of functions. It presents vogue reviews with self assurance scores and gives in-depth, conclusion-to-end visibility into clients, applications and subnets.
  • The Sniffer InfiniStream i120, a line fee, circulation-to-disk tool that monitors, measures, manages and resolves community complications on the network's part or in small deployments. It shops as much as 300 GB of records that network managers can use to analyze network efficiency and trends.
  • Robert Whiteley, analyst with Cambridge, Mass.-based Forrester research Inc., referred to network conventional's movement to consist of utility performance analysis with its community and protocol evaluation line will help for more desirable conclusion-to-end administration of the complete community.

    "It ultimately makes it possible for the finger-pointing to cease," he stated. "Now they can definitively say no matter if it be an application or network issue. here is a good characteristic when all is said and accomplished."

    Whiteley spoke of bringing community analysis capabilities into the software house is a "natural extension" for network ordinary.

    "or not it's a administration interface that plugs into a sort of supervisor of managers very seamlessly," he observed.

    Whiteley added: "Kudos to network prevalent for waking up … they're coming again around and saying, 'Let's exit and make sure not one of the small guys birth to snip away at us.'"


    equipped for VoIP: community management Architectures: ClearSight Networks | killexams.com Real Questions and Pass4sure dumps

    WEBINAR:On-Demand

    EUC with HCI: Why It concerns

    ClearSight Networks, Inc., headquartered in Fremont, Calif., is a company of network monitoring and analysis tools for actual-time software troubleshooting.

    The business become headquartered in early 2001 by using former employees of community typical and founders of Cinco Networks. (Cinco was got via network typical in 1997.) in the past referred to as AppDancer Networks, ClearSight Networks acquired a majority investment in April of 2003 from Japan-based mostly Toyo, and became then positioned beneath new management.

    ClearSight claims to be the best enterprise that identifies community issues on the utility layer, enabling IT directors to effectively and automatically visualize and pinpoint the source of community complications, leading to quicker decision that ensures enterprise continuity.

    The company is privately held, and has about 60 employees. Its items are offered worldwide through an immediate and reseller channel.

    The ClearSight Analyzer product line consist of the ClearSight Analyzers, the ClearSight disbursed far flung monitoring device, and the network Time laptop, a knowledge seize and evaluation system.

    The ClearSight Analyzer is an advanced network monitoring and troubleshooting tool that illustrates community undertaking by way of an easy, intuitive person interface. This analyzer comprises aid for triple-play techniques, including IPTV.

    The ClearSight Analyzer Gigabit and Clearsight Analyzer 10G assist networks of up to 10 Gigabit Ethernet ability. The systems help the evaluation of numerous signaling protocols including SIP, H.323, Cisco SCCP, MGCP, MEGACO, and RTSP.

    The VoIP protocol decodes supported encompass: H.323, SIP, MGCP, MEGACO or H.248, SCCP ("Skinny"), RTSP, MSN, SKYPE and RTP/RTCP. In total, the Clearsight Analyzer supports very nearly 1,000 protocol decodes, which the company claims is among the most wide lists within the trade.

    probably the most potent fits of the ClearSight Analyzer is its capacity to supply a ladder screen of the communique sequences; name reports, alarms, and packet decode functions (see figure 1).

    it will probably also generate a QoS document for a VoIP call easily through making a choice on the favored name and clicking the 'file' tab (see figure 2). The QoS record comprises evaluation of voice quality parameters (together with packet loss, jitter, R-price, and MOS) mentioned as VQFactor™ and MDI for a video stream.

    The system also contains a VoIP name Log Browser, that could extract call history (delivery time, caller, callee, MOS, and period) from the VoIP name log suggestions kept in ClearSight Analyzer's history database in keeping with distinct circumstances, and checklist the effects in this file. Time range, call period, and MOS cost can also be combined as extraction conditions. The extracted name log can then be exported in CSV (comma-separated values) structure, and can also be compiled in a separate spreadsheet software (see determine 3).

    The analyzer additionally measures audio or video pleasant for each RTP move and shows designated statistical information because of this. MOS and R-value are supported as QoS metrics for voice; VQFactor (a video first-rate metric developed with ClearSight's patent pending algorithm) and the Media start Index (MDI-a trademark for video transport performance) are supported for video (see determine four).

    ClearSight Analyzer also helps the performance evaluation and troubleshooting of video streams in IPTV environments. proposing an IPTV channel zapping evaluation graph, the analyzer categorizes multicast streams under IPTV environments into every channel and graphically reveal alterations within the packet expense (see determine 5).

    ClearSight dispensed is a distributed device with a next-generation utility circulation analyzer. the usage of the relevant Agent supervisor, it allows for remote network monitoring, software performance evaluation, and troubleshooting for multiple LAN segments that are physically separated from one a different. Monitoring and evaluation of network traffic is finished inside a far flung Agent, which minimizes the management site visitors overhead between the supervisor and probe. The Agent detects malfunctions on the community and generates alarms, that may include lots of moves, reminiscent of sending an e-mail, web page, or SNMP lure message, or the execution of a Java script.

    The ClearSight Packet Generator is a software application for transmitting site visitors via 10/100Mb Ethernet from a home windows pc. The application helps single packet mode for again and again sending the identical packet, and buffer mode for regenerating traffic captured from the specific network. The Packet Generator can be used at the side of ClearSight Analyzer to check transmission of packets across a community all over community setting up. The number of packets and transmission rate can be adjusted from Packet Generator and the received packets monitored with the aid of ClearSight Analyzer after passing throughout the community and community contraptions.

    further particulars on the Clearsight Networks architecture and items can also be discovered at www.clearsightnet.com. Our subsequent tutorial will continue our examination of providers' network management architectures.

    writer's BiographyMark A. Miller, P.E., is President of DigiNet organization, a Denver-based mostly consulting engineering company. he's the creator of many books on networking technologies, including Voice over IP technologies, and web applied sciences instruction manual, each posted with the aid of John Wiley & Sons.

    Article courtesy of business VoIP Planet, © 2008 DigiNet enterprise, All Rights Reserved

    Mark A. Miller, P.E. is President of DigiNetB. service provider, a Denver-based consulting engineering company. he's the creator of many books on networking applied sciences, including Voice over IP applied sciences, and cyber web technologies instruction manual, both published by using John Wiley & Sons.


    1T6-521 Application Performance Analysis and Troubleshooting

    Study Guide Prepared by Killexams.com Network-General Dumps Experts


    Killexams.com 1T6-521 Dumps and Real Questions

    100% Real Questions - Exam Pass Guarantee with High Marks - Just Memorize the Answers



    1T6-521 exam Dumps Source : Application Performance Analysis and Troubleshooting

    Test Code : 1T6-521
    Test Name : Application Performance Analysis and Troubleshooting
    Vendor Name : Network-General
    Q&A : 120 Real Questions

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    Application Performance Analysis and Troubleshooting

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    Spark Application Performance Monitoring using Uber JVM Profiler, InfluxDB and Grafana | killexams.com real questions and Pass4sure dumps

    Key Takeaways
  • Running spark applications continuously & reliably is a challenging task and a good performance monitoring system is needed.
  • The performance monitoring system designed with three objectives - collect server and application metrics, store metrics in a time-series database and provide a dashboard for data visualization.
  • Uber JVM Profiler is used to monitor Spark application. Other technologies used are InfluxDB for storing time-series data and Grafana data visualization tool.
  • The performance monitoring system helps DevOps teams to efficiently monitor the system to meet compliance and service level agreements of an application.
  • Many industries are using Apache Spark for building big data processing applications. Spark provides implicit data parallelism and fault-tolerance for this type of application. The application could be a stream processing, batch processing, SQL dataset processing or machine learning application. Spark’s fast, in-memory data processing engine runs these applications in a cluster and transforms & processes large amount of data in data pipelines. Running these applications continuously & reliably is a challenging task, and a good performance monitoring system is needed. As Spark is being widely adopted by industries, performance monitoring, metric analysis and tuning the issues of Spark applications are getting more attention. Uber has recently open sourced their JVM Profiler for Spark. In this article we will discuss how we can extend Uber JVM Profiler and use it with InfluxDB and Grafana for monitoring and reporting the performance metrics of a Spark application.

    Spark Application Performance Monitoring System

    A performance monitoring system is needed for optimal utilisation of available resources and early detection of possible issues. It should provide comprehensive status reports of running systems and should send alerts on component failure. When we talk of large-scale distributed systems running in a Spark cluster along with different components of Hadoop echo system, the need for a fine-grained performance monitoring system becomes predominant. The Spark application performs distributed processing of data and works on shared resources which makes the job of the DevOps team very complex. The DevOps team has to manage the available resources effectively and monitor different components of the system closely to avoid any downtime. The full stack visibility provided by an effective performance monitoring system helps theDevOps team to understand the system behaviour and to react quickly on the production issues. This ensures reliability, scalability and performance of the Spark application.

    The ideal performance monitoring system for such a complex system must have the following features:

  • The monitoring system should provide granular visibility about each component inside cluster. We should able to get detailed metrics about CPU, Memory, Storage, Disk I/O for local file and HDFS, stack traces etc. These metrics help to quickly troubleshoot the faulty instances.
  • The monitoring system should provide code level metrics for applications (e.g. execution time, arguments used by different methods) running on spark. This will help to identify slow running methods, disk hot-spotting etc.
  • The monitoring system should store metrics for every second and allow us to analyse metrics by navigating across different time periods. We should able to do second and sub second level dissection of these data. We should able to control the data retention period and easily access and analyse the past data when needed. This helps in analysing the current trend and predicting the future trend.
  • The monitoring system should provide an effective way of extracting meaningful information from a large volume of metrics being collected continuously. This includes querying of data using SQL or API, filtering of data, aggregation of values and applying custom analysis. This helps in easy transformation and faster analysis of data.
  • The monitoring system should provide easy access of information deduced from the analysis of metric data. There should be the option to display data in dashboard using different forms like charts, graphs tables, etc. There should be the option to categorise the data based on host, time or job, and users should be able to further drill them down to corelate the different data points. There should be a provision for configuring alerts and notifications for user defined thresholds on metrics data. This helps DevOps teams and other stockholders of an organisation to get the desired set of information quickly when it is needed.
  • In this article, we’ll develop a performance monitoring system using opensource tools & technologies. The spark application performance monitoring system is designed with three objectives:

  • Collect the performance metrics of system (driver & executors) and application code
  • Store these metrics in durable storage for timeseries analysis (batch & live)
  • Generate reports from metrics data in the form of graphs and charts
  • Apache Spark provides a web-ui and REST API for metrics. Spark also provides a variety of sinks including Consoles, JMX, Servlet, Graphite etc. There are few other open source performance monitoring tools available like dr-elephant, sparklint, prometheus, etc. Metrics provided by these tools are mostly server level metrics, and few of them also provide information of running applications.

    Uber JVM Profiler collects both server level and application code metrics. This profiler can collect all metrics (cpu, memory, buffer-pool etc) from the driver, executor or any JVM. It can instrument existing code without modifying it, so it can collect metrics about methods, arguments and execution time. For storing metrics for timeseries analysis, we will use InfluxDB, which is a powerful timeseries database. We will extend Uber JVM Profiler and add a new reporter for InfluxDB so metrics data can be stored using HTTP API. For the dashboard of graphs and charts we will use Grafana, which will query the InfluxDB for metrics data.

    Below are the details about tools/technologies used for the spark application performance monitoring system.

    Uber JVM Profiler   

    Uber JVM Profiler is a distributed profiler which collects performance metrics and resource utilisation metrics from different nodes across the cluster. This JVM Profiler runs as a Java Agent along with the application and collects the different metrics. It publishes these metrics to a designated reporter for further analysis and reporting. Uber JVM Profiler was developed for profiling spark applications, but this can be used for profiling any JVM based application. There are three main components of Uber JVM Profiler:

  • Profiler: Uber JVM Profiler comes with the following built in profilers:
  • CpuAndMemory Profiler – This profiler collects Buffer Pool (direct & mapped), Garbage Collection (count & time), Heap Memory (Committed & TotalUsed), Non- Heap Memory (committed & total used), CPU (load & time), Memory Pool details (EdenSpace, SurvivorSpace, TenuredGen,  CodeCache, CompressedClassSpace, Metaspace), vmHWM and vmRSS metrics.
  • IO Profiler – IO profiler collects CPU stat (idle, nice, system, user, iowait) and Disk io read/write bytes.
  • Stacktrace Profiler – This profiler collects Thread Name, Thread State and Stack trace metrics.
  • ProcessInfo Profiler – This profiler collects Agent Version, JVM Class Path, JVM Input Arguments and xmxBytes metrics.
  • MethodDuration Profiler – This profiler collects metrics for the execution time of a method which includes Class Name, Method Name and Process Name.
  • MethodArgument Profiler – This profiler collects metrics for method argument which includes Class Name, Method Name and Process Name.
  • Transformer: This is a Class File Transformer to instrument java method bytecodes. This transformer is used to instrument methods from MethodDuration and MethodArgument profilers.
  • Reporter: The following reporters are available:
  • KafkaOutputReporter – To send performance metrics to Kafka topic.
  • FileOutputReporter – To write metrics in a file.
  • ConsoleOutputReporter – Sends metrics to console.
  • RedisOutputReporter – Store metrics to Redis database.
  • For more details about JVM profiler please refer to Uber’s blog post.

    InfluxDB and Grafana

    InfluxDB: InfluxDB is an open source time series database which is designed for efficiently storing and querying a large amount of time-stamped data. This data could be IoT sensor data, real-time analytics data, application metrics data or dev-ops monitoring data. It provides automatic data lifecycle management by expiring & deleting old data. It provides write and query capabilities using SQL-like query language, HTTP API and client libraries. Check out the details here.

    Grafana: Grafana is an open source metric dashboard and graph editor. Grafana also supports alerts and notifications for metrics. It supports many data sources like Graphite, InfluxDB, OpenTSDB, Prometheus, Elasticsearch and CloudWatch. Many Dashboard and Plugins (both opensource and commercial) are available at Grafana’s website. For more details about Grafana visit the website.

    System Architecture

    Spark application runs on cluster network which may consist of a few nodes to thousands of nodes. For collecting metrics from this distributed system and sending the metrics to other systems for further analysis, we need a loosely coupled and fault tolerant architecture. Publishing the metrics to Kafka topic is one of the best solutions. Uber JVM profiler comes with a “KafkaOutputReporter” which can be used for this purpose. Another solution approach for storing and reading the metrics is by using the InfluxDB. InfluxDB provides HTTP API which can be used to query and write to database. This API supports both basic and JWT token authentication and URLS can be configured for HTTPS access. “InfluxDBOutputReporter” that we are discussing in this article invokes Write HTTP Endpoint to store the metrics collected by different profilers. Grafana provides a rich data source plugin for InfluxDB. Grafana uses Query HTTP Endpoint to fetch metrics data from InfluxDB  and it displays the data on the dashboard in the form of rich graphs and tables. These graphs and tables are auto refreshed at fixed intervals, and time intervals can be configured in Grafana settings.

    The architecture diagram of the performance monitoring system for spark application using Uber JVM Profiler, InfluxDB and Grafana is illustrated in Figure 1 below.

    Figure 1. Performance Monitoring System Architecture Diagram

    Technologies and Tools

    The following Table shows the technologies and tools used for a performance monitoring system.

    Please refer to the documentation for installing and configuring these tools.

    Design and Implementation

    The following sections provide design and implementation details for a performance monitoring system for spark application. Uber JVM profiler collects metrics from driver and executors and these metrics have detailed information like role (driver/executor), processUuid and host. These details are useful for identifying the different systems and analysing their metrics. In InfluxDB we can use these details to query performance metrics of different executors. We can add processUuid in InfluxDb tags, so query performance will be high. First, we will create “metrics” database in InfluxDB, then we will add an “InfluxDBOutputReporter” in JVM Profiler code base, and finally we will configure the Grafana dashboard and graphs.

    Create Metrics Database in InfluxDB
  • Start the InfluxDB server, which by default runs on 8086 port. For example, in Ubuntu system open a terminal and execute “influxd” command.
  • /user/bin$ sudo influxd

  • Once the server is up and running, start “influx” utility in another terminal. And then execute command to create “metrics” database.
  • /user/bin$ sudo influx            

    CREATE DATABASE metrics

    Implement InfluxDBOutputReporter

    We will implement “InfluxDBOutputReporter” in JVM-Profile code base. Refer to the InfluxDBOutputReporter.java file at “influxdb_reporter” branch at GitHub for the implementation details discussed in this section.

  • We will use influxdb-java library to interact with InfluxDB database server. It uses HTTP API to read and write in the InfluxDB database. Update the pom.xml file and add maven dependency for influxdb-java library.
  • Define host, port and database properties for InfluxDB database server in InfluxDBOutputReporter class. Default values for these properties are “127.0.0.1”, “8086” and “metrics”, respectively. Create connection to InfluxDB using API provided by influxdb-java library.
  • InfluxDBOutputReporter class needs to implement com.uber.profiling.Reporter interface. We need to override public void report(String profilerName, Map<String, Object> metrics) method and public void close() method. The “profilerName” will be the measurement name in “metrics” database.
  • As InfluxDB uses Line Protocol to store key=value pairs, we need to process metrics data available in Map<String, Object> sent by Profiler and convert them to a form so that it can be stored in a Point of single series. We can use the value of “name” property from metrics, if it is available, to form the name of field. If “name” property is not available, then we can use a counter value. InfluxDB supports regular expression for field name in query, so querying these fields won’t be an issue.
  • Create Point and Batchpoint using influxdb-java library APIs and write the Batchpoints to InfuxDB database.
  • For reading database connection properties from the yaml file we have to use com.uber.profiling.YamlConfigProvider and com.uber.profiling.Argument classes. Add a reference of InfluxDBOutputReporter class in Argument class and invoke setProperties method to pass properties coming from yaml file. A sample yaml file for influxdb is available at resources/influxdb.yaml at GitHub.
  • Add Data Source and Dashboard in Grafana

    This section provides brief details on the steps needed for adding a graph for metric data from InfluxDB in Grafana. Please check on the Grafana documents for in-depth details:

  • Start the Grafana server. On Ubuntu we can execute the below command. By default, it runs on port number 3000.
  • sudo service grafana-server start

  • Open http://localhost:3000/ in a browser and create data source for InfluxDB. Add Name as “InfluxDBDataSource”, Type as “InfluxDB”, default URL for InfluxDB is “http://localhost:8086” and Database name will be “metrics”.
  • Create a new dashboard by clicking on Graph, click Edit and add query for graph. Below is a sample query for InfluxDB database.
  • select "heapMemoryCommitted" as Committed, "heapMemoryTotalUsed" as Used from "metrics"."autogen"."CpuAndMemory” where “role" = 'driver' AND time > now() – 5m
  • Grafana provides the option of defining template variables which can be passed in query. This will be useful for displaying data from multiple executors on dashboard. For example, we can create variables for “executorProcessUuid” & “timeInterval” and use them in query as below.
  • select "heapMemoryCommitted" as Committed, "heapMemoryTotalUsed" as Used from "metrics"."autogen"."CpuAndMemory” where "processUuid" =~ /^$executorProcessUuid$/ AND time > now() - $timeInterval

    A sample Spark-Metrics-Dashboard JSON file has been provided at GitHub. This file can be imported at Grafana server. Open the URL http://localhost:3000/dashboard/import in a browser and click on “Upload.json File”.

    Build and Deploy

    This section describes the steps to build and deploy a performance monitoring system. Application code can be cloned from the “influxdb_reporter” branch at GitHub.

  • Use the below command to build the JVM profiler with “InfluxDBOutputReporter”.
  • mvn clean package

  • Copy the JVM Profiler-0.0.9.jar file created by maven build to some directory. (e.g /opt/profiler). We can keep influxdb.yaml file as well in this directory.
  • We will use the existing JavaNetworkWordCount application for profiling which is shipped with Apache Spark. Source code is available at /spark-2.3.1-bin-hadoop2.7/examples/src/main/java/org/apache/spark/examples/streaming.
  • To run JavaNetworkWordCount application, we need to run Netcat server using the below command.
  • nc -lk 9999

  • Go to /spark-2.3.1-bin-hadoop2.7/sbin and start the Master using the below command.
  • ./start-master.sh

  • We can get the master URL from log file. Pass this URL to command to start the Worker.
  • ./start-slave.sh -c 2 spark://192.168.1.6:7077

  • Go to /spark-2.3.1-bin-hadoop2.7/bin and execute the below command. This command will execute JavaNetworkWordCount application and start the JVM profilers for driver and executor. Check the Uber JVM profiler GitHub readme page for details about the parameters.
  • spark-submit --master spark://192.168.1.6:7077 --conf "spark.driver.extraJavaOptions=-javaagent:/opt/profiler/jvm-profiler-0.0.9.jar=reporter=com.uber.profiling.reporters.InfluxDBOutputReporter,metricInterval=5000,sampleInterval=5000,ioProfiling=true" --conf "spark.executor.extraJavaOptions=-javaagent:/opt/profiler/jvm-profiler-0.0.9.jar=reporter=com.uber.profiling.reporters.InfluxDBOutputReporter,tag=influxdb,configProvider=com.uber.profiling.YamlConfigProvider,configFile=/opt/profiler/influxdb.yaml,metricInterval=5000,sampleInterval=5000,ioProfiling=true" --class org.apache.spark.examples.streaming.JavaSqlNetworkWordCount ../examples/jars/spark-examples_2.11-2.3.1.jar localhost 9999
  • Optionally, we can run the application with yaml file. Pass “configProvider” and “configFile” parameters in command as below.
  • spark-submit --master spark://192.168.1.6:7077 --conf "spark.driver.extraJavaOptions=-javaagent:/opt/profiler/jvm-profiler-0.0.9.jar=reporter=com.uber.profiling.reporters.InfluxDBOutputReporter,configProvider=com.uber.profiling.YamlConfigProvider,configFile=/opt/profiler/influxdb.yaml,metricInterval=5000,sampleInterval=5000,ioProfiling=true" --conf "spark.executor.extraJavaOptions=-javaagent:/opt/profiler/jvm-profiler-0.0.9.jar=reporter=com.uber.profiling.reporters.InfluxDBOutputReporter,tag=influxdb,configProvider=com.uber.profiling.YamlConfigProvider,configFile=/opt/profiler/influxdb.yaml,metricInterval=5000,sampleInterval=5000,ioProfiling=true" --class org.apache.spark.examples.streaming.JavaSqlNetworkWordCount ../examples/jars/spark-examples_2.11-2.3.1.jar localhost 9999
  • Go to “influx” terminal and execute the below commands.
  • use metrics

    show measurements

  • We will get the name of “Measurements” created in “metrics” database as below.
  • CpuAndMemory

    IO

    ProcessInfo

    Stacktrace

    We can check the data populated in these Measurements. For example, we use the below command to fetch a single record from CpuAndMemory measurement.

    select * from CpuAndMemory limit 1

  • Go to Grafana dashboard for spark. Graphs for metrics should be populated with data. Below is the sample dashboard.
  • Figure 2. Sample Grafana dashboard for spark metrics

    Pros and Cons

    The performance monitoring system we discussed in this article collects different system and application metrics using Uber JVM Profiler and stores them in the InfluxDB time-series database. The time-series database provides data retention policies, continuous queries, flexible time aggregations and efficient handling of millions of records both for live and batch processing. These timeseries data helps us to analyse how system changed in the past, how the system is behaving in the present and predict how it may change in the future. We can identify the patterns of failures by correlating these metrics collected over time. We created a dashboard using Grafana which helps us in easy access and navigation across different types of metrics. The DevOps team can use these graphs and charts to corelate the different metrics to understand the system behaviour and can identify hotspots in the data. This helps in maintaining the compliance and achieving the service level agreements of an application. Overall this performance monitoring system helps in achieving the Continuous Monitoring of the system.

    The limitations of this performance monitoring system are in line with the limitations we have for the agent-based profiler. The agent-based profiler may consume a certain amount of computing resources. Sometimes it may require troubleshooting and patching, which might be difficult for large geographically distributed system. You might need to complete the paper work before installing the agents on the production system. We also have to consider the security, scalability and availability of the performance monitoring system, i.e. monitor the monitoring system. Most of these challenges can be overcome by proper designing and tuning of the application and system. If you are not allowed to install profiler agents on a production system, then you can consider anagent-less system, but it has its own limitations, such as less granular metrics and increased network overload.

    Summary

    For complex spark applications identifying, debugging and resolving, the production issues are not easy tasks and we need an effective performance monitoring system which can assist us with this. Uber JVM Profiler is a great addition to the open source community. This JVM Profiler can be extended and a new reporter for publishing metrics can be added. Performance metrics for spark applications collected by different profilers can be stored in InfluxDB. The “InfluxDBOutputReporter” that we discussed in this article uses HTTP API to write metrics for spark drivers and executors to InfluxDB. Grafana provides a plugin for InfluxDB and uses HTTP API for querying the metrics. We can create a dashboard with charts, tables and graphs for these metrics, which can be auto refreshed in fixed intervals. Code for “InfluxDBOutputReporter” is available here, and Spark-InfluxDB-Grafana.json file is available here.

    References About The Author

    Amit Baghel is a software architect with over 17 years of experience in design and development of enterprise applications and products around Java ecosystem. His current focus is on IoT, Cloud Computing, Big Data Solutions, Micro Services, DevOps and Continuous Integration and Delivery. Baghel  can be reached via e-mail.


    High Performance Computing Market Segmented by Product , by Applications and Geography, Analysis of Growth, Trends and Forecasts (2018-2025) | killexams.com real questions and Pass4sure dumps

    No result found, try new keyword!... computers help to solve problems of recurring and complex operations as individual nodes work together and hence can solve problem more efficiently than one computer. High performance computing ha...

    Enterprise High Performance Computing 2018 Market Segmentation,Application,Technology & Market Analysis Research Report to 2023 | killexams.com real questions and Pass4sure dumps

    "Enterprise High Performance Computing Market"

    WiseGuyReports.Com Publish a New Market Research Report On –“ Enterprise High Performance Computing 2018 Market Segmentation,Application,Technology & Market Analysis Research Report to 2023”.

    Description:-

    Over the past two decades, enterprises have realized the value of using clusters of computers to solve complex mathematical, computational, and simulation/modeling problems. By addressing these massive problems using parallel computing techniques (allowing the problem to be split into parts that can be tackled by individual or groups of processors), the time to complete a solution can be drastically reduced.

    Scope of the Report:

    The market is currently dominated by HPC equipment utilized for traditional use cases, or situations in which an HPC system is used for heavy-duty number crunching, simulation, and analysis, techniques that require the brute force of cluster computing to reduce the time to complete complex calculations. In these cases, HPC is not used to support any artificial intelligence (AI)-related techniques, such as machine learning, deep learning, or natural language processing.

    The global Enterprise High Performance Computing market is valued at xx million USD in 2017 and is expected to reach xx million USD by the end of 2023, growing at a CAGR of xx% between 2017 and 2023.

    Get a Sample Report@   https://www.wiseguyreports.com/sample-request/3512230-global-enterprise-high-performance-computing-market-2018-by

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    The Asia-Pacific will occupy for more market share in following years, especially in China, also fast growing India and Southeast Asia regions.

    North America, especially The United States, will still play an important role which cannot be ignored. Any changes from United States might affect the development trend of Enterprise High Performance Computing.

    Europe also play important roles in global market, with market size of xx million USD in 2017 and will be xx million USD in 2023, with a CAGR of xx%.

    This report studies the Enterprise High Performance Computing market status and outlook of Global and major regions, from angles of players, countries, product types and end industries; this report analyzes the top players in global market, and splits the Enterprise High Performance Computing market by product type and applications/end industries.

    Market Segment by Companies, this report covers

    Amazon

    Bright Computing

    Cray

    Dell EMC

    Ephesoft

    Hewlett Packard Enterprise

    IBM

    Lenovo

    Mellanox Technologies

    Microsoft

    Panasas

    Pure Storage

    Verne Global

    Market Segment by Regions, regional analysis covers

    North America (United States, Canada and Mexico)

    Europe (Germany, France, UK, Russia and Italy)

    Asia-Pacific (China, Japan, Korea, India and Southeast Asia)

    South America (Brazil, Argentina, Colombia)

    Middle East and Africa (Saudi Arabia, UAE, Egypt, Nigeria and South Africa)

    Market Segment by Type, covers

    On-Premise

    Cloud Services

    Market Segment by Applications, can be divided into

    Automotive

    Manufacturing

    Financial Services

    Life Sciences

    Oil and Gas

    Others

    Enquiry About Report @  https://www.wiseguyreports.com/enquiry/3512230-global-enterprise-high-performance-computing-market-2018-by

     

    Table Of Contents – Major Key Points

    1 Enterprise High Performance Computing Market Overview

    1.1 Product Overview and Scope of Enterprise High Performance Computing

    1.2 Classification of Enterprise High Performance Computing by Types

    1.2.1 Global Enterprise High Performance Computing Revenue Comparison by Types (2017-2023)

    1.2.2 Global Enterprise High Performance Computing Revenue Market Share by Types in 2017

    1.2.3 On-Premise

    1.2.4 Cloud Services

    1.3 Global Enterprise High Performance Computing Market by Application

    1.3.1 Global Enterprise High Performance Computing Market Size and Market Share Comparison by Applications (2013-2023)

    1.3.2 Automotive

    1.3.3 Manufacturing

    1.3.4 Financial Services

    1.3.5 Life Sciences

    1.3.6 Oil and Gas

    1.3.7 Others

    1.4 Global Enterprise High Performance Computing Market by Regions

    1.4.1 Global Enterprise High Performance Computing Market Size (Million USD) Comparison by Regions (2013-2023)

    1.4.1 North America (USA, Canada and Mexico) Enterprise High Performance Computing Status and Prospect (2013-2023)

    1.4.2 Europe (Germany, France, UK, Russia and Italy) Enterprise High Performance Computing Status and Prospect (2013-2023)

    1.4.3 Asia-Pacific (China, Japan, Korea, India and Southeast Asia) Enterprise High Performance Computing Status and Prospect (2013-2023)

    1.4.4 South America (Brazil, Argentina, Colombia) Enterprise High Performance Computing Status and Prospect (2013-2023)

    1.4.5 Middle East and Africa (Saudi Arabia, UAE, Egypt, Nigeria and South Africa) Enterprise High Performance Computing Status and Prospect (2013-2023)

    1.5 Global Market Size of Enterprise High Performance Computing (2013-2023)

    2 Manufacturers Profiles

    2.1 Amazon

    2.1.1 Business Overview

    2.1.2 Enterprise High Performance Computing Type and Applications

    2.1.2.1 Product A

    2.1.2.2 Product B

    2.1.3 Amazon Enterprise High Performance Computing Revenue, Gross Margin and Market Share (2016-2017)

    2.2 Bright Computing

    2.2.1 Business Overview

    2.2.2 Enterprise High Performance Computing Type and Applications

    2.2.2.1 Product A

    2.2.2.2 Product B

    2.2.3 Bright Computing Enterprise High Performance Computing Revenue, Gross Margin and Market Share (2016-2017)

    2.3 Cray

    2.3.1 Business Overview

    2.3.2 Enterprise High Performance Computing Type and Applications

    2.3.2.1 Product A

    2.3.2.2 Product B

    2.3.3 Cray Enterprise High Performance Computing Revenue, Gross Margin and Market Share (2016-2017)

    2.4 Dell EMC

    2.4.1 Business Overview

    2.4.2 Enterprise High Performance Computing Type and Applications

    2.4.2.1 Product A

    2.4.2.2 Product B

    2.4.3 Dell EMC Enterprise High Performance Computing Revenue, Gross Margin and Market Share (2016-2017)

    2.5 Ephesoft

    2.5.1 Business Overview

    2.5.2 Enterprise High Performance Computing Type and Applications

    2.5.2.1 Product A

    2.5.2.2 Product B

    2.5.3 Ephesoft Enterprise High Performance Computing Revenue, Gross Margin and Market Share (2016-2017)

    2.6 Hewlett Packard Enterprise

    2.6.1 Business Overview

    2.6.2 Enterprise High Performance Computing Type and Applications

    2.6.2.1 Product A

    2.6.2.2 Product B

    2.6.3 Hewlett Packard Enterprise Enterprise High Performance Computing Revenue, Gross Margin and Market Share (2016-2017)

    2.7 IBM

    2.7.1 Business Overview

    2.7.2 Enterprise High Performance Computing Type and Applications

    2.7.2.1 Product A

    2.7.2.2 Product B

    2.7.3 IBM Enterprise High Performance Computing Revenue, Gross Margin and Market Share (2016-2017)

    Continued……

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    For more information or any query mail at sales@wiseguyreports.com

    ABOUT US:

    Wise Guy Reports is part of the Wise Guy Consultants Pvt. Ltd. and offers premium progressive statistical surveying, market research reports, analysis & forecast data for industries and governments around the globe. Wise Guy Reports features an exhaustive list of market research reports from hundreds of publishers worldwide. We boast a database spanning virtually every market category and an even more comprehensive collection of market research reports under these categories and sub-categories.

    Media ContactCompany Name: Wiseguyreports.comContact Person: Norah TrentEmail: Send EmailPhone: +1 646 845 9349, +44 208 133 9349City: PuneState: MaharashtraCountry: IndiaWebsite: www.wiseguyreports.com



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