Recent changes
Wednesday November 04 2026
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The REST API as a data interface Updated Markdown page
For developers and administrators who consider the Exponential REST API (v1 and v2, extension ezprestapi) as a machine interface to datasets: what it returns as JSON, how authentication and permissions work, and what to…
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Versioning and updating datasets Updated Markdown page
How to update, correct, supersede and withdraw datasets in Exponential without breaking addresses or losing the record: versions and their limit, periods as separate distributions, change notices, and withdrawal instead…
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What open data means for a public body Updated Markdown page
For people in a public body who are asked to "publish open data": what the term means in the Open Definition and the EU Open Data Directive, what DCAT is, and which parts of the job a content management system like…
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Who may publish datasets Updated Markdown page
How to set up roles, sections and an approval step so that only the data team creates datasets, a data steward approves them before they go public, and every publication is recorded.
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Running Exponential in the public sector Updated Markdown page
The operations part of the Governments section: hosting, availability, backups, monitoring, incidents, upgrades and change, people and permissions, and editorial workflows, written for in-house IT teams and the managers…
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Availability for public-sector sites Updated Markdown page
Index of the availability pages for public bodies: high availability, several web servers, shared storage, database availability and read replicas, the caches in front of PHP, cache warming, maintenance mode, sessions…
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Availability targets and service levels Updated Markdown page
For public bodies that set availability targets for a website, internally or in a contract with a provider. Which commitments are possible, what each depends on, how to measure them, and why the targets are your…
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Cache warming after changes Updated Markdown page
For operations teams in public bodies that clear caches after deploys, restores or urgent corrections. How to warm the site again so the first visitors do not pay for every render, with preload.php, warm.php, the…
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Capacity planning Updated Markdown page
For public-sector IT teams sizing servers for an Exponential site. The figures the repository actually states (memory limits, Velocity workers, OPcache, disk thresholds, measured cache throughput), what drives load, how…
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Database high availability Updated Markdown page
For public-sector database and infrastructure teams. What Exponential itself offers for database availability (connection retries, read replicas on MySQL and MariaDB, Oracle failover settings), what is left to the…
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High availability overview Updated Markdown page
For public bodies with continuity duties who need an Exponential site to survive the failure of a machine. What a single server can and cannot give, what several web servers require (database server, shared storage…
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Maintenance mode and planned downtime Updated Markdown page
For public bodies that must announce and control planned downtime of a website. How Exponential's maintenance mode answers visitors with a 503 page and an expected end, who still gets in, how monitoring and search…
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Read replicas Updated Markdown page
For database teams in public bodies running Exponential on MySQL or MariaDB. How Exponential sends read queries to replicas with UseSlaveServer, the exact settings, what replication lag means for editors, and when…
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Several web servers behind a load balancer Updated Markdown page
For IT teams in public bodies that put an Exponential site on several web servers behind a central load balancer or reverse proxy. What is shared and what stays local, trusted proxies, cron on one node, and deploys…
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Shared storage and the DFS cluster Updated Markdown page
For infrastructure teams in public bodies that let several web servers share the uploaded files of an Exponential site. How the DFS cluster file handler works, what it needs (an NFS export and a metadata database), the…
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The static cache Updated Markdown page
For public-sector IT teams asked whether to turn on Exponential's static cache. What it is, why it ships off and the installation book says to leave it off, the rare cases where it still fits (for example an emergency…
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Velocity response cache and HTTP cache Updated Markdown page
For IT teams that need a public-sector site to stay fast and reachable under load. The two caches that answer before Exponential renders a page, what each stores and never stores, how fresh pages are, and how to check…
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Backups and recovery for public-sector sites Updated Markdown page
Index of the backup and recovery pages for public bodies: what to back up, per-engine database backups, files and keys, schedules and retention, backups from the administration, restore tests, disaster recovery, RPO and…
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Audit trail archives and backups Updated Markdown page
For security officers, records officers and operations teams in public bodies. How Exponential's audit trail keeps live files and signed archives, how long by default, how to keep evidence for years on storage the web…
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Backup schedules and retention Updated Markdown page
For public bodies that write a backup policy for an Exponential site. The decisions a policy must make, the rules the sources state, the retention periods Exponential keeps on its own, and how backup retention meets…