Slide 25
Slide 25 text
GWC file system “filter parameters” management
- GWC creates separate cache for extra
request parameters that cause tile contents to
change
- TIME, CQL_FILTER
- STYLES, ENV, VIEWPARAMS, …
- Values are not necessarily file system friendly
- SHA-1 of params identify them
- Mapping between all SHA-1 and its values
stored in a single file
- Used to cause contention and lockups on the
(network) file system
- Fixed
2.26.x
Andrea Aime
GeoSolutions
Eumetsat
25
With the previously mentioned fix for #880, in PR
#1230, we now get substantial performance
improvements with FileBlobStore. This is
anywhere between 2x to 12x the performance, in
terms of throughput (there are so many variables to our
setup that I can't put a precise figure on it - but this,
with other config tweaks to allow us to scale, brings us
close to the 12x mark)
https://github.com/GeoWebCache/geowebca
che/issues/1276