Purge Lock Server

Software · Tue Aug 21 00:00:00 EDT 2012

DOI:https://doi.org/10.11578/dc.20210521.47· OSTI ID:1231536 · Code ID:57089

Fox, Kevin ^[1]

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1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

The software provides a simple web api to allow users to request a time window where a file will not be removed from cache. HPSS provides the concept of a "purge lock". When a purge lock is set on a file, the file will not be removed from disk, entering tape only state. A lot of network file protocols assume a file is on disk so it is good to purge lock a file before transferring using one of those protocols. HPSS's purge lock system is very coarse grained though. A file is either purge locked or not. Nothing enforces quotas, timely unlocking of purge locks, or managing the races inherent with multiple users wanting to lock/unlock the same file. The Purge Lock Server lets you, through a simple REST API, specify a list of files to purge lock and an expire time, and the system will ensure things happen properly.

• Short Name / Acronym: PLS
• Project Type: Open Source, No Publicly Available Repository
• Site Accession Number: 4855
• Software Type: Scientific
• License(s): Other
• Programming Language(s): C; PHP
• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE

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  Primary Award/Contract Number:

  AC05-76RL01830
• DOE Contract Number: AC05-76RL01830
• Code ID: 57089
• OSTI ID: 1231536
• Country of Origin: United States