Information
  • Author: Appian Corporation
  • Type: Plug-in (Function & Smart Service)
  • Support: This plug-in or utility is not supported by the author. The content is free to use with a licensed product, but it is made available as-is and Community supported.
  • Industry: All Industries
  • Compatible Version(s): 22.2+, 24.1
  • First Released:
  • Last Updated:
  • Cost: Free
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Home » AppMarket » Log Reader

Log Reader

Overview

Plug-in Notes:

  • Allows only System Administrators or members of the Designers group to access log data.  
  • Does not load files outside the logs directory or files that do not end in .log.* or .csv.*.
  • On multi-application-server environments, logs will only be shown from a single application server.
  • Custom headers can be specified as an optional parameter. This is meant to be used for .csv files that don't contain a header.

Key Features & Functionality

The Appian Log Reader Plug-in contains functionality to:

  • Read files in the Appian /log folder (.csv or .log) and return them as structured data
  • Aggregate data from a .csv file
  • Serve as the source for a service-backed record for viewing logs
  • The Log Reader application provided with the download demonstrates a service-backed record for viewing logs, as well as reports on specific log files. Administrators can view reports on system health over time, including design best practices, system load, and database performance. The application also contains a process that checks details from system.csv and alerts administrators if memory or CPU utilization exceeds a threshold.
  • Tail a log file with tailcsv and taillog. Note that tail is an expensive operation which is optimized for reading the last few lines of a large log file. It's not advisable to tail the entire log file from the end to the beginning. However, tail will perform much better than the other log functions when reading the last few lines from a very large log file. Use the batch size and timestamp filters to limit the number of lines read by the tailcsv and taillog functions.
  • Takes a line of text in CSV format and returns a text array
Anonymous
Parents

  • I found the following problems after inspection of Log Reader Record Only 7.5 (1).zip

    Problems (1):
    content _a-0000e58d-c17f-8000-5249-01ef9001ef90_7961 "Lr_errorExpression": The content [id= uuid=_a-0000e58d-c17f-8000-5249-01ef9001ef90_7961] was not imported because a required precedent is missing: content [uuid=_a-0000da18-b569-8000-927a-010000010000_18681 location=Expression Rule Definition] cannot be found. (APNX-1-4070-001) (APNX-1-4071-006)

    Cascading Problems (2):
    content _a-0000e58d-c17f-8000-5249-01ef9001ef90_7955 "LR_reportWithError": The content [id= uuid=_a-0000e58d-c17f-8000-5249-01ef9001ef90_7955] was not imported because a required precedent is missing: content [uuid=_a-0000e58d-c17f-8000-5249-01ef9001ef90_7961 location=Interface Definition] cannot be found. (APNX-1-4070-001) (APNX-1-4071-006)
    tempoReport 3d2a70fa-f6a1-4cf8-be18-fe9ee7648df4 "Report with Design Error": The tempoReport [id= uuid=3d2a70fa-f6a1-4cf8-be18-fe9ee7648df4] was not imported because a required precedent is missing: content [uuid=_a-0000e58d-c17f-8000-5249-01ef9001ef90_7955 location=SAIL Dashboard] cannot be found. (APNX-1-4070-001) (APNX-1-4071-006)

    Warnings (1):
    pluginInfo com.appiancorp.ps.logreader "Log Reader": The plug-in "Log Reader" is referenced by object(s) in the package. The plug-in is on a different version in the target environment (APNX-1-4071-097)

    Success (69):
    group _e-0000d964-5fe5-8000-9277-010000010000_8 "LR Viewers"
    group _e-0000d964-5fe5-8000-9277-010000010000_7 "LR Admins"
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    content _a-0000d94d-f0be-8000-927a-010000010000_336 "Dashboard"
    content _a-0000d95d-3f26-8000-927a-010000010000_392 "Util"
    content _a-0000d94d-f0be-8000-927a-010000010000_337 "LR_returnFirstInput"
    content _a-0000d94d-f0be-8000-927a-010000010000_339 "LR_getCellFromLogRow"
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    content 9ba53d16-2aeb-4ed4-8ee6-5fc26f421ffb "LR_logDashboardMain"
    content _a-0000d962-59ae-8000-927a-010000010000_445 "Reports"
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    content _a-0000d96d-7ef0-8000-927a-010000010000_522 "LRP_listViewTitle"
    content _a-0000d96d-7ef0-8000-927a-010000010000_506 "Log Reader"
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    content 0ffe1725-3552-40b0-8ead-5b7bc47d0415 "LR_tempDashboard"
    content _a-0000d971-76d8-8000-927a-010000010000_531 "Reports"
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    content 3bdbf258-0f38-478f-b537-657e402188bc "LRP_processDashboard"
    processModelFolder _g-0000d965-94f0-8000-927a-010000010000_1 "Log Reader"
    processModel 0004d965-a806-8000-927a-010000010000 "System Health Monitor"
    application _a-0000d94d-f0be-8000-927a-010000010000_341 "Log Reader Record Only 7.5"
    recordType af24d8b8-550c-4a1f-a961-51f40b1364e5 "System Log"
    recordType e1bc0aad-a91f-469c-a2ea-6b65694f8012 "System Health Monitor"
    tempoReport 48e8da37-ebc6-4603-91e7-deb8d7fecd37 "System Performance - Slow Expressions"
    tempoReport 94c9d79d-2044-4685-aa2e-749bf6fdf8d4 "System Performance - Slow Data Store Operations"
    tempoReport be512fef-3312-4c4d-9a18-8e0263234e24 "System Health - Disk Usage"
    tempoReport 145d6ae7-3dd7-4a46-9d4c-c3d91b13eef8 "System Health - Java Heap Memory"
    tempoReport 49bb70b1-29fb-4ece-ba6c-46fd55dafcd8 "System Health - Load Average"
    tempoReport c085c656-8afd-4185-9178-f3ae484b0310 "Best Practices Violations - CDTs byreference"

    Inspect completed in 2.28 seconds

Comment

  • I found the following problems after inspection of Log Reader Record Only 7.5 (1).zip

    Problems (1):
    content _a-0000e58d-c17f-8000-5249-01ef9001ef90_7961 "Lr_errorExpression": The content [id= uuid=_a-0000e58d-c17f-8000-5249-01ef9001ef90_7961] was not imported because a required precedent is missing: content [uuid=_a-0000da18-b569-8000-927a-010000010000_18681 location=Expression Rule Definition] cannot be found. (APNX-1-4070-001) (APNX-1-4071-006)

    Cascading Problems (2):
    content _a-0000e58d-c17f-8000-5249-01ef9001ef90_7955 "LR_reportWithError": The content [id= uuid=_a-0000e58d-c17f-8000-5249-01ef9001ef90_7955] was not imported because a required precedent is missing: content [uuid=_a-0000e58d-c17f-8000-5249-01ef9001ef90_7961 location=Interface Definition] cannot be found. (APNX-1-4070-001) (APNX-1-4071-006)
    tempoReport 3d2a70fa-f6a1-4cf8-be18-fe9ee7648df4 "Report with Design Error": The tempoReport [id= uuid=3d2a70fa-f6a1-4cf8-be18-fe9ee7648df4] was not imported because a required precedent is missing: content [uuid=_a-0000e58d-c17f-8000-5249-01ef9001ef90_7955 location=SAIL Dashboard] cannot be found. (APNX-1-4070-001) (APNX-1-4071-006)

    Warnings (1):
    pluginInfo com.appiancorp.ps.logreader "Log Reader": The plug-in "Log Reader" is referenced by object(s) in the package. The plug-in is on a different version in the target environment (APNX-1-4071-097)

    Success (69):
    group _e-0000d964-5fe5-8000-9277-010000010000_8 "LR Viewers"
    group _e-0000d964-5fe5-8000-9277-010000010000_7 "LR Admins"
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    tempoReport c085c656-8afd-4185-9178-f3ae484b0310 "Best Practices Violations - CDTs byreference"

    Inspect completed in 2.28 seconds

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