Getting Started with vFabric Hyperic v.5.7 - VMware

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Overloaded BackendIf the vFabric Hyperic database cannot process metrics at the rate it receives them, resourcesthat are available may be incorrectly shown as unavailable.You can view vFabric Hyperic Server process statistics, as well as load and utilization data -load, process, system and JVM memory, and so on - on the HQ Health page.Based on your load, it may be appropriate to tune vFabric Hyperic Server, the vFabric Hypericdatabase, or both. For more information, see Scaling and Tuning vFabric Hyperic Performance.Important: First and foremost: run the vFabric Hyperic database on dedicated hardware.Competition for system resources can slow down metric processing.Overloaded AgentIf an agent's queue of metrics grows to a certain level over a period of time, the followingwarning message is written to the agent.log file:The Agent is having a hard time keeping up with the frequency of metrics taken.Consider increasing your collection interval.To investigate, you can configure the agent to report the "Total Time Spent Fetching Metrics perMinute" metric — if the agent spends more than half its time fetching metrics — it isoverloaded.You can alleviate the problem by Increasing metric collection intervals — For most metrics, thedefault is every 5 or 10 minutes. You can change the collection interval for all metrics collectedfor a resource type on the Administration > Monitoring Defaults page for the resource type.Want to Change a Whole Bunch of Metric Collection Intervals?If you want to change metric templates in bulk, or without using the vFabric Hyperic userinterface, you can change metric collection settings - including collection intervals - for aresource type with the HQApi metricTemplate command. You can use themetricTemplate sync option from the command line or in a script, as desired. For moreinformation, see HQApi metricTemplate command section in vFabric Hyperic WebServices API.Try to redistribute loadIf an agent that logs metric volume warnings is monitoring a large number of remoteservices over the network (for example, HTTP, FTP, SNMP, or another service type whoseprotocol the agent supports), you can spread the load around — configure a different agentto monitor some of the network services. You can compare the agent loads on the Agentstab of HQ Health.112
Slow User InterfaceIf vFabric Hyperic's web user interface is slow, the cause may be an overloaded backend - thevFabric Hyperic database, or the vFabric Hyperic Server itself. See Overloaded Backend.Warning Messages in the Agent LogThis section has information about the significance of selected warning messages that might bewritten to the agent.log file.Connection Timeout MessagesLather, the connection protocol for agent-to-server communication, is configured such thatagent connections time out after five minutes, and a timeout message is written to agent.log.You can increase the timeout period from 300000 to 900000 in this file:hq-engine/server/default/deploy/lather-jboss.sar/jboss-lather.war/WEB-INF/web.xmlin this snippet:org.hyperic.lather.execTimeout900000113
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Getting Started with vFabricHyperic
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ContentsAbout Getting Started with
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About Getting Started with vFabric
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Key Facts for vFabric Hyperic Insta
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About SSL in vFabric HypericAbout t
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By default, the vFabric Hyperic Ser
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You can also ensure that you do not
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o The vFabric Hyperic Server saves
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Unidirectional Communication via a
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Propertyserver.java.optstomcat.maxt
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vFabric Hyperic Installation and St
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3. Start the vFabric Hyperic Server
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d. Open firewall port if necessary.
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6. Import discovered resources.o Af
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Step-by-Step ProceduresSelect and D
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About vFabric Hyperic JREsBoth vFab
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Password Requirement for vFabric Hy
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About the vFabric Hyperic vAppA vir
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vFabric Hyperic Server vApp Adminis
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Prerequisites and RequirementsThese
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5. Click the Custom Properties tab.
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checkpoint_segments — Set the val
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Stop PostgreSQLStop PostgreSQL with
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o On Windows platforms, enter:PathT
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17. What port should HQ's built-in
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3. On the Administrator User Inform
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After installing the agent, proceed
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3. Entering the following command i
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Install vFabric Hyperic Server:1. O
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For information and required and op
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Page 68 and 69: About Password EncryptionThe first
Page 70 and 71: About Where the Agent Finds Server
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Page 74 and 75: agent.setup.agentIPDescriptionThis
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Page 92 and 93: hq-install.log — this file contai
Page 94 and 95: Create a Custom Agent Upgrade Bundl
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Page 98 and 99: Change vFabric Hyperic Server Sizin
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Page 102 and 103: Configure vCenter Operations Manage
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Getting Started with vFabric Hyperic v.5.7 - VMware

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