Community & Careers questions and discussions

Editorial question93.7K views941 votes1 answer3,260 following

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GitLab backup restore: are LFS objects in uploads actually recovered?

GitLab's built-in gitlab:backup:create task bundles the database, repositories, uploads, and CI artifacts into one timestamped tarball, and gitlab:backup:restore brings the instance back from it. The stated goal here is a complete disaster-recovery restore where every project's Git LFS files are usable again without manual re-upload. The uncertainty is aroun

backup-restore disaster-recovery git-lfsDev Orbit0 rep · 28 Feb 2023, 23:21 UTC

Editorial question71.3K views3,813 votes1 answer1,376 following

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Does raising max_tis_per_query reduce Airflow burst scheduling latency, or does it move the bottleneck to the metadata database?

When a large number of task instances become runnable simultaneously, Airflow's scheduler processes them in bounded batches controlled by max_tis_per_query ; at low concurrency this limit is invisible, but under a burst it can introduce queueing delay. The unresolved decision is whether increasing this batch size actually improves task start latency or simpl

concurrency scheduler-tuning apache-airflowIra Nea0 rep · 01 Mar 2023, 03:33 UTC

Editorial question48.7K views2,727 votes1 answer1,240 following

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What is the most reliable way to verify Docker named volume restoration using checksums?

When restoring a Docker named volume from a tar backup, the goal is to confirm that the recovered data matches the original exactly, without relying on Docker‑specific verification commands. Constraints include performing the check on the host system using only standard tools (e.g., md5sum, find, diff) and avoiding extraction of the entire volume into a temp

docker checksum-verification volume-backupDev Indigo0 rep · 01 Mar 2023, 03:45 UTC

Editorial question56.9K views3,706 votes1 answer1 comment4,987 following

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Phoenix and HBase Backup/Restore: Does Phoenix Auto‑Sync SYSTEM.CATALOG After HBase Restore?

Goal After taking a full HBase backup that includes Phoenix tables, we want to restore the HBase tables and have Phoenix automatically recognize the restored tables without manual catalog manipulation. Constraints & Uncertainty Phoenix stores table metadata in the SYSTEM.CATALOG region and relies on HBase’s native backup/restore APIs for HFiles. In some

restore hbase

phoenixAri Orbit0 rep · 28 Feb 2023, 12:02 UTC

Editorial question46.6K views4,606 votes1 answer3,783 following

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Scheduled build cannot be parsed: invalid date format – time zone conversion in Bamboo logs

Scheduled build cannot be parsed: invalid date format – time zone conversion in Bamboo logs When configuring a scheduled build in Bamboo, the UI shows the next run time in the server’s configured time zone, but the timestamps written to the build logs default to UTC. This mismatch becomes problematic for teams spread across multiple regions. Additionally, if

time-zone

bamboo date-parsingCig River0 rep · 27 Feb 2023, 17:46 UTC

Editorial question31.6K views3,322 votes1 answer1 comment1,127 following

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NU1100 error after cancelled NuGet restore leaves partial packages

NU1100 after cancelled restore When a NuGet restore is cancelled or times out, the CLI stops downloading further packages but leaves already extracted files in the global‑packages folder and the project’s obj directory. This leaves the restore in an inconsistent state; subsequent builds may fail with NU1100 because referenced assemblies are missing or incomp

cancellation timeout

nugetAsh Nea0 rep · 27 Feb 2023, 14:55 UTC

Editorial question75.9K views943 votes1 answer1,229 following

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UTC-only timestamps versus offset-aware strings for DST‑safe regional queries in CouchDB

The goal is to choose a timestamp representation that lets a CouchDB view return the correct set of documents for a user‑specified local‑time range, even when that range spans an ambiguous hour during a daylight‑saving transition. CouchDB stores timestamps as JSON strings; map/reduce views run SpiderMonkey JavaScript, where new Date() parses ISO 8601 strings

datetime dst timezoneIra Orbit0 rep · 27 Feb 2023, 11:55 UTC

Editorial question48.4K views2,217 votes1 answer3,161 following

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Virtual thread API migration failures from JDK 19/20 preview to JDK 21 final

Goal: diagnose why code that compiled and ran with the preview virtual thread API in JDK 19 or JDK 20 fails when compiled or executed on JDK 21, where virtual threads are finalized and the API has changed. Constraints: the code may use preview‑only imports (jdk.incubator.concurrent), preview‑only constructors, and custom scheduler implementations that relied

jdk-21 project-loom

fiberNia Sage0 rep · 27 Feb 2023, 03:23 UTC

Editorial question149.4K views1,297 votes1 answer2,273 following

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Ansys License Manager connectivity failures and log correlation

The Ansys License Manager utilizes a FlexNet Publisher architecture consisting of the lmgrd server daemon and the ansyslmd vendor daemon. When clients fail to check out licenses, the root cause can reside either within the server-side daemon state or the client-side network configuration. Server-side issues often manifest in the debug logs as hostid mismatch

flexnet license-manager troubleshootingKavi Finch0 rep · 27 Feb 2023, 01:49 UTC