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Services/Sync/Server/SyncChangesets: Difference between revisions
Services/Sync/Server/SyncChangesets (view source)
Revision as of 22:40, 21 September 2011
, 21 September 2011→Read
(Created page with "=Sync Changesets= In an effort to minimize reads to the db, we should cache the newest changes that are written to the system. Since most devices sync within a fairly short windo...") |
(→Read) |
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==Read== | ==Read== | ||
#Check info/collections to make sure there are changes post the requested time | |||
#If request is for period > changeset window (2 days?) go straight to db | |||
#Grab <user>:<collection>:changeset; if doesn't exist, fall back to db | |||
#Loop through changesets (<user>:<collection>:<timestamp>), grabbing them out of memcache. Merge and return. | |||
#If some are missing or server suspects an error, fallback to db | |||
==Write== | ==Write== | ||