Community & Careers questions and discussions

Editorial question64.9K views2,146 votes1 answer988 following

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Full Page Cache or Varnish: Trade‑off for Concurrent Request Latency

Goal: lower average and 95th‑percentile response time when Magento serves many simultaneous storefront requests. Constraint: the solution must keep dynamic blocks such as the mini‑cart, login status, and personalized recommendations up‑to‑date without serving stale content. Uncertainty: Full Page Cache relies on backend storage and can miss when URL variatio

magento full-page-cache varnishRin Dey0 rep · 25 Jun 2024, 13:44 UTC

Editorial question127.8K views4,215 votes1 answer1,157 following

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Bind‑mounted nginx.conf vs baked custom image: trade‑off for repeatable dev environments

Goal: establish a repeatable nginx developer environment that lets engineers modify configuration quickly while guaranteeing that the same binary and settings are used across all workstations. Constraints: using the official nginx image with a bind‑mounted nginx.conf provides instant visibility of edits without rebuilding the container, but it relies on host

docker

nginx dev-environmentZo Moss0 rep · 25 Jun 2024, 10:13 UTC

Editorial question10.1K views4,309 votes1 answer1 comment4,503 following

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Preventing duplicate writes during CICS transaction retries

In a COBOL application running under CICS, maintaining data integrity during transaction retries is critical. While the use of sync-points and the EXEC CICS SYNCPOINT command ensures that a Logical Unit of Work (LUW) is processed atomically, the system does not natively track whether a specific business event has already been persisted if the transaction is

mainframe

cobol cicsAsh Orbit0 rep · 23 Jun 2024, 19:09 UTC

Editorial question108.8K views3,993 votes1 answer2,045 following

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FileZilla Passive Mode Port Range Behavior When Server Firewall Restricts High Ports

When configuring FileZilla for FTP transfers, the goal is to achieve reliable passive mode connections in both local and production environments. The client’s passive mode defaults to requesting a random port in the full 1024‑65535 range, which works locally where outbound traffic is unrestricted. In production, firewalls often block those high ports, causin

firewall

filezilla passive-modeRahul Byte0 rep · 23 Jun 2024, 10:52 UTC

Editorial question74.8K views1,622 votes1 answer1 comment907 following

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Which Composer configuration best skips dev dependencies during CI builds?

Goal In continuous‑integration pipelines I want Composer to omit dev‑only packages automatically, so the vendor tree stays small and the install step is fast. Constraints The repository must stay usable for local developers who still need dev tools, and any CI tests that rely on dev packages must either be moved to the main dependency set or installed separa

dependencies configuration

composerDev Sage0 rep · 23 Jun 2024, 08:38 UTC

Editorial question79.1K views752 votes1 answer1,893 following

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Stata and ODBC: Connection Persistence During Long-Running Queries

Stata utilizes the ODBC standard to execute SQL queries and load recordsets into memory via the odbc load command. In non-interactive scripts, the data transfer process depends on the underlying ODBC driver manager to maintain the session while the database processes complex queries. When executing long-running SELECT statements, there is uncertainty regardi

stata database-integration sql-connectivityRahul Finch0 rep · 23 Jun 2024, 10:13 UTC

Editorial question104.1K views1,657 votes1 answer633 following

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What configuration precedence rules apply when overriding connection strings in ASP.NET Core integration tests using WebApplicationFactory?

The goal is to configure ASP.NET Core integration tests so that they never read production secrets while still exercising the same configuration binding logic used in production. When using WebApplicationFactory to create a test host, developers can override settings via environment variables, user‑secrets, or testcontainers, but it is not clear which source

csharp configuration testingRey Byte0 rep · 23 Jun 2024, 08:11 UTC

Editorial question140.4K views904 votes1 answer3,066 following

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Alertmanager Notification Grouping: Balancing group_wait and group_interval for Latency

Prometheus Alertmanager utilizes group_by labels to aggregate alerts and prevent notification storms. To manage the delivery flow, the group_wait timer determines how long to wait for additional alerts to join a group before sending the first notification, while group_interval controls the wait time before sending a notification about new alerts added to an

prometheus alertmanager monitoringNia Nea0 rep · 22 Jun 2024, 20:04 UTC

Editorial question40.5K views2,803 votes1 answer1 comment3,185 following

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Does New Relic preserve custom attributes during export‑import cycles?

Goal: Confirm that custom attributes attached to New Relic events survive a full export‑import cycle without loss or alteration. The process relies on the Data Export API to pull a known time window of JSON payloads and the Events API to re‑ingest that payload into a test account. Because the export may drop null‑valued fields or reorder keys, and because re

newrelic backup-restoration data-exportCig River0 rep · 22 Jun 2024, 17:51 UTC