WarehousePG Enterprise Manager 1.5 release notes

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The WarehousePG Enterprise Manager (WEM) 1.5.x documentation describes the latest patch release. Release notes for all 1.5.x versions are included below.

VersionRelease date
1.5.022 Oct 2026

WEM 1.5.0

Released: 21 Oct 2026

WEM 1.5.0 includes new features, enhancements, and bug fixes.

Note

WEM 1.5 works with acp-host-agent 1.1.0. You don't need to upgrade the host agent.

Highlights

New features

  • Wider platform support: WEM packages are now available for RHEL 10, Debian 13, and ppc64le. See Supported platforms.
  • ClickHouse-native query scan: A ClickHouse-native job replaces the agent-driven log scan that populated query history. WEM now stores query history in ClickHouse instead of in WarehousePG tables, so it stays available when the WarehousePG cluster is down. QUERY_SCAN_INTERVAL sets how often the job runs. QUERY_LOG_RETENTION_DAYS sets how long query_log_history rows stay in ClickHouse. See Configuration parameters.
  • Configuration drift detection: WEM periodically checks the Safeguard configuration files on the primary and DR clusters against its stored configuration, and updates its stored configuration with the values from the host. CONFIG_DRIFT_ENABLED turns the check on or off, and CONFIG_DRIFT_INTERVAL sets how often it runs. See Detecting configuration drift.
  • CSV export on query monitor pages: Export the longest queries and historical queries to CSV. See Monitoring and evaluating queries.
  • Improved query plan view: The graphical plan layout no longer overlaps nodes, node details show every field from the EXPLAIN output, and plan warnings appear in a sortable table. See Monitoring and evaluating queries.
  • Tooltips on the cluster overview: Info icons on the Connections, Databases, Active Queries, and Database Connections panels explain what each one counts. See Verifying and managing cluster health.
  • More detail in the Recent Logs panel: The panel, previously named Recent WHPG Log Alerts, now shows the timestamp, severity level, and source host of each entry. See Getting started with WarehousePG Enterprise Manager.

Changes

  • Data Analysis renamed to Database Objects: The Data Analysis menu item and page are now Database Objects. See Analyzing data distribution.
  • Parameters removed from wem.conf: LOG_SCAN_INTERVAL, LOG_SCAN_ENABLED, and WEM_AGENT_CALLBACK_BASE_URL no longer exist. Existing overrides stop working, so remove them from wem.conf when you upgrade. See Configuration parameters for the replacement settings.
  • EDB installation layout: WEM installs to the EDB layout. The working directory moves from /usr/local/greenplum-db/wem to /usr/edb/wem, the logs move from /var/log/wem to /var/log/edb/wem, and the configuration file moves from /etc/wem/wem.conf to /etc/edb/wem/wem.conf. The TLS example paths in wem.conf for PGSSLCERT, PGSSLKEY, PGSSLROOTCERT, WEM_SSLCERT, WEM_SSLKEY, and WEM_SSLROOTCERT moved from /etc/wem/tls/ to /etc/edb/wem/tls/. See Installing WEM and Upgrading WarehousePG Enterprise Manager.
  • Canary checks are read-only: Canary checks now run in a read-only transaction, and WEM accepts only a single SELECT statement or a WITH query that doesn't modify data. Existing checks that modify data keep running but show as critical until you edit or delete them. See Configuring canary checks and wem canary import.

Bug fixes

  • Fixed the session filter on the Logs tab returning no rows.
  • Fixed the HBA Editor showing fetching… indefinitely when the host agent or the job-execution engine is unreachable. WEM now shows the error within a few seconds.
  • Fixed WEM detecting the resource manager type only once, at startup. WEM now detects it live, so changes on the cluster are picked up without restarting WEM.
  • Fixed tabs on the Database Objects page showing data for the previously selected database after you switched databases.
  • Fixed the Longest Queries empty state hiding the backend message that explains why no queries appear.
  • Fixed the Bloat tab not detecting append-optimized (AO) and append-optimized column-oriented (AOCO) tables, and showing a bloat percentage outside 0 to 100. The tab now has a Storage column.
  • Fixed the PXF tab showing the status Unknown on single-host installations.
  • Fixed WEM failing after you replace the WarehousePG cluster with a new one, because the objects it needs in the cluster weren't created. WEM now detects the new cluster and creates them.

Deprecations

The following compatibility measures are available in 1.5.0 only and will be removed in 1.6.0.

  • Working directory link: On upgrade, standalone WEM hosts get a link from /usr/local/greenplum-db/wem to /usr/edb/wem. On hosts where WEM runs alongside WarehousePG, /usr/local/greenplum-db belongs to WarehousePG, so WEM creates no link and prints a warning instead.
  • Binary link: A link from /usr/edb/wem/wem to /usr/edb/wem/bin/wem.
  • Log directory link: On upgrade, WEM moves the old logs to /var/log/edb/wem and creates a link from /var/log/wem to it. If /var/log/wem still contains other files, WEM leaves it in place, creates no link, and prints a warning.
  • Old configuration path: WEM reads the configuration from /etc/wem/wem.conf, with a warning, only if /etc/edb/wem/wem.conf is missing.

Update any scripts, monitoring, or tooling that use the old paths before you upgrade to 1.6.0.

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