I did two things: 1. Catted the file to /dev/null 2. Reduced cache_size from 10000 down to 2000
I don't know what actions enabled the creation of the index. Before I did these two things, the index would not create. Joe Wilson wrote: > > --- Joe Wilson <[EMAIL PROTECTED]> wrote: >> > improved dramatically. So I attempted the creation of the index off >> hours on >> > the production system, and after 4 hours no index. I can't detect any >> > activity at all. The journal file and the .db file just sit at the same >> size >> > for 4 hours. Why is this failing? It seems like it is just sitting >> there >> > doing nothing. When I created the test index, I noticed the journal >> file >> > changing and the .db file changing during the 2.5 hours to create. On >> the >> > production .db file, nothing is happening. I have all associated >> processes >> > killed that ineract with the db file, so I know it is not locked. >> >> I assume that the copied "test" database was indexed immediately after >> its >> creation. If this was the case then the entire file may have been in the >> OS >> cache resulting in very quick indexing. Try running "wc prod.db" or >> "cat prod.db >/dev/null" and then creating the indexes on prod.db to see >> what happens. > > The original poster confirmed that cat'ting the file to /dev/null reduced > index > creation time to 2.5 hours on the original database file. > > Could some optional heuristic be incorporated into SQLite's pager to do > something > similar for such large transactions and/or queries? > > > > > > ____________________________________________________________________________________ > Need Mail bonding? > Go to the Yahoo! Mail Q&A for great tips from Yahoo! Answers users. > http://answers.yahoo.com/dir/?link=list&sid=396546091 > > ----------------------------------------------------------------------------- > To unsubscribe, send email to [EMAIL PROTECTED] > ----------------------------------------------------------------------------- > > > -- View this message in context: http://www.nabble.com/Index-creation-tf3451503.html#a9783538 Sent from the SQLite mailing list archive at Nabble.com. ----------------------------------------------------------------------------- To unsubscribe, send email to [EMAIL PROTECTED] -----------------------------------------------------------------------------
