[Update 2008-04-19 08:30] The rolling restart that will deploy 1.20.1 to the second half of the grid is finished.
[Update 2008-04-18 11:10] The rolling restart to the first half of the grid is complete. Half of the regions are on server version 1.20.1; half are still on the previous server version, 1.20.0. The server deploy will be completed tomorrow on the schedule below.
[Update 2008-04-17 22:30] We have deployed server version 1.20.1 to 1827 regions.
After a few unsuccessful attempts to deploy server version 1.21, we’ve decided to split this into two separate deploys. First, we will deploy a patched version of Server version 1.20. This will include security and performance fixes, including the much-desired reduction memory usage by the physics engine in openspace regions. The plan for this deploy is:
- Thursday 04/17, starting very soon : deploy the 1.20 patches to about 100 regions. Assuming all is well, deploy the 1.20 patches to about 1500 regions.
- Friday morning 04/18, 5-9AM: deploy 1.20 patches to half of Second Life
- Saturday morning 04/18, 5-9AM: deploy 1.20 patches to the rest of Second Life
We are dividing the main deploy into two halves as a result of a variety of constraints. If we do a rolling restart beginning in the morning, we need to stop it well before peak concurrency to avoid overloading the database with additional load provided by the rolling restart. Thus, the Friday morning rolling restart will only cover half the grid so we will have a wide safety margin before the routine load on the database gets too high.
Next week, we will deploy server version 1.21 to the grid. This includes changes in the way regions are assigned to hosts, changes that will allow us to reduce the stress on the central database. More information about the scheduling of that deploy will be posted as it becomes available (probably not until next Monday).
Note: all the versions referenced in this post are server versions, not viewer versions. You will not need to update your Second Life viewer application as a result of this rolling restart.
Update : From Sidewinder at this post, we have a list of the changes in these patches:
Note that items starting with “DEV” were entered internally, and items starting with “SVC” were reported on the public jira.
DEV-13002: Improved physical representation of some thin shapes (As originally reported, this appeared to be a problem with a prim floor becoming phantom after conversion. It turned out to an inaccurate physical representation that left “holes” in the floor in some areas)
SVC-1531: Physical representation of dimpled, hollowed spheres improved
DEV-12725: Camera position is no longer affected by phantom objects or avatars (resolution of this bug removed a cause of rapid shifts in camera position for reasons not obvious from the scene in view)
DEV-12841: Removed a simulator crash mode
DEV-13080: Reduced tendency of avatar’s feet to fold up to waist climbing stairs
SVC-1989: Avatar no longer becomes phantom when sitting
Improved performance of openspace regions