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README.md
vertica_kit_diagnostics.sql
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README.md

Vertica Kit

It's my goal to create a kit that contains essential queries and resources for administering HP's Vertica. You can check out what I've done so far at vertica.tips.

License

Vertica Kit is free: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

Vertica Diagnostic Queries

The goal of these queries is to provide as much information as possible covering monitoring, diagnostics and performance tuning. This idea is heavily inspired by Glenn Barry's SQL Server diagnostic queries and Ola Hallengren's SQL Server maintenance solution.

The June 2015 release has the following changes:

  • Updated Tables Without Primary Keys query to check for additional constraints as it may have reported incorrect information (hat tip to Allen Cook at Conclusive Analytics)

Diagnostic Views

  • Configuration Information View
  • License Information
  • Database Size
  • License Utilization
  • Nodes in the Cluster
  • Down Nodes in the Cluster
  • K-Safety Level
  • Number of Node Failures Before Automatic Shut Down
  • Data Collector Status
  • Changed Configuration Parameters
  • Diagnostic Information View
  • Queries returned < 1 sec
  • Queries returned between 1 and 2 sec
  • Queries returned between 2 and 3 sec
  • Queries returned between 3 and 4 sec
  • Queries returned between 4 and 5 sec
  • Queries returned > 5 sec
  • Query Events
  • Rejected Load Events
  • Tables Without Primary Keys
  • Percent of Database Deleted
  • Resource Rejections
  • Projections Without Refresh In Last 3 Months
  • Projection Columns Without Refresh In Last 1 Month
  • Projection Columns Without Full Statistics
  • Resource Information View
  • Disk Space Utilization
  • Memory Information
  • Nodes Exceeding Used Space Limit

Diagnostic Query

The core diagnostic query list contains 34 queries over 5 sections and covers the following:

  • Configuration Information (6)
  • Product Version
  • License and Compliance Status
  • Data Collector Status
  • Changed Configuration Parameters
  • Configuration Change History
  • Fault Tolerance
  • Resource Information (5)
  • Disk Space Utilization by Host
  • Processor Information by Host
  • Memory Information by Host
  • Compressed and Raw Estimate Data Space Usage by Schema
  • Disk Space Warning
  • Diagnostic Information (15)
  • Distribution of Query Request Times
  • Proactively Examining Query Events
  • Overview of Query Event Types
  • Spill to Disk Events
  • Resegmented Query Events
  • Load Events with Rejected Rows
  • Query Requests with Errors
  • Service Intervals and Last Run
  • Workload Analyzer Tuning Rules
  • Possible Missing Primary Keys
  • Deleted Database Date
  • Denied Resource Requests
  • Mergeout Activity
  • Open sessions
  • Request Distribution
  • Projection Specific (5)
  • Outdated Column Statistics
  • Columns Requiring Statistics Updates
  • Data Skew in Segmented Projections
  • Outdated and Un-refreshed Projections
  • Unused Projections
  • Query Profiling Information (4)
  • Profiling Configuration
  • Clearing Profile Data
  • Query, Session and EE Profiling
  • Examining Query Profiles

Other Resources

Doug Harmon has his own Vertica SQL Toolbelt which contains shell scripts and other helpful diagnostic queries.

The unofficial Vertica forums have Vertica professionals helping the Vertica community.

vertica.tips is a blog with authors from the community sharing expert knowledge as well as a site for valuable materials, videos, news, and training.