dCache - a system for storing and retrieving huge amounts of data, distributed among a large number of heterogenous server nodes, under a single virtual filesystem tree with a variety of standard access methods
DGAs send messages to other dCache cells to discover their current status. These messages have a hard-coded one second timeout.
Some queries are data-intensive and could take longer than one second to build the answer, resulting in no information being provided.
Modification:
DGAs already have the concept of some queries taking longer: the DGA refresh period. This period is how long the DGA will wait, after querying a cell, before querying the cell for updated information.
Therefore, it makes sense to use this DGA refresh period as the timeout for messages send to other cells.
Result:
The info service will now wait longer for a cell to respond to a query for information.
svemeyer
commented
4 months ago
Motivation:
DGAs send messages to other dCache cells to discover their current status. These messages have a hard-coded one second timeout.
Some queries are data-intensive and could take longer than one second to build the answer, resulting in no information being provided.
Modification:
DGAs already have the concept of some queries taking longer: the DGA refresh period. This period is how long the DGA will wait, after querying a cell, before querying the cell for updated information.
Therefore, it makes sense to use this DGA refresh period as the timeout for messages send to other cells.
Result:
The info service will now wait longer for a cell to respond to a query for information.
Target: master Requires-notes: yes Requires-book: no Request: 9.2 Ticket: https://rt.dcache.org/Ticket/Display.html?id=10592 Patch: https://rb.dcache.org/r/14226/ Acked-by: Tigran Mkrtchyan Acked-by: Lea Morschel