Обсуждение: multithreading
Hi, Just a quick question... are there any plans to multithread the restore from dump functionality? pgadmin spends several minutes (around 15) "not responding" while I restore my 700MB dump... and it's working away fine. It's not a biggie, but it would be nice to have the interface telling me "I'm on it"... It would probably be quite complicated to do but logically there seems no reason why I couldn't use pgadmin for work on another db while it's restoring... Cheers Anton -- echo '16i[q]sa[ln0=aln100%Pln100/snlbx]sbA0D4D465452snlbxq' | dc This will help you for 99.9% of your problems ...
On Tue, Jun 10, 2008 at 10:45 AM, Anton Melser <melser.anton@gmail.com> wrote: > Hi, > Just a quick question... are there any plans to multithread the > restore from dump functionality? pgadmin spends several minutes > (around 15) "not responding" while I restore my 700MB dump... and it's > working away fine. It's not a biggie, but it would be nice to have the > interface telling me "I'm on it"... It would probably be quite > complicated to do but logically there seems no reason why I couldn't > use pgadmin for work on another db while it's restoring... > The restore runs in an entirely separate process from pgAdmin, and doesn't stop you continuing to work whilst it runs (at least in my limited testing here). Maybe you're seeing some platform-specific quirk - what version are you running on what platform? -- Dave Page EnterpriseDB UK: http://www.enterprisedb.com
2008/6/10 Dave Page <dpage@pgadmin.org>: > On Tue, Jun 10, 2008 at 10:45 AM, Anton Melser <melser.anton@gmail.com> wrote: >> Hi, >> Just a quick question... are there any plans to multithread the >> restore from dump functionality? pgadmin spends several minutes >> (around 15) "not responding" while I restore my 700MB dump... and it's >> working away fine. It's not a biggie, but it would be nice to have the >> interface telling me "I'm on it"... It would probably be quite >> complicated to do but logically there seems no reason why I couldn't >> use pgadmin for work on another db while it's restoring... >> > > The restore runs in an entirely separate process from pgAdmin, and > doesn't stop you continuing to work whilst it runs (at least in my > limited testing here). Maybe you're seeing some platform-specific > quirk - what version are you running on what platform? Um... not on either Windows XP or Windows Server 2008 Standard (finally a decent desktop!)... pgadmin stays "not responding" for the entire restore. And yes, it's 1.8.4. Cheers Anton
2008/6/10 Anton Melser <melser.anton@gmail.com>: > 2008/6/10 Dave Page <dpage@pgadmin.org>: >> On Tue, Jun 10, 2008 at 10:45 AM, Anton Melser <melser.anton@gmail.com> wrote: >>> Hi, >>> Just a quick question... are there any plans to multithread the >>> restore from dump functionality? pgadmin spends several minutes >>> (around 15) "not responding" while I restore my 700MB dump... and it's >>> working away fine. It's not a biggie, but it would be nice to have the >>> interface telling me "I'm on it"... It would probably be quite >>> complicated to do but logically there seems no reason why I couldn't >>> use pgadmin for work on another db while it's restoring... >>> >> >> The restore runs in an entirely separate process from pgAdmin, and >> doesn't stop you continuing to work whilst it runs (at least in my >> limited testing here). Maybe you're seeing some platform-specific >> quirk - what version are you running on what platform? > > Um... not on either Windows XP or Windows Server 2008 Standard > (finally a decent desktop!)... pgadmin stays "not responding" for the > entire restore. And yes, it's 1.8.4. WinXP 32 bit, Win2008 x64. -- echo '16i[q]sa[ln0=aln100%Pln100/snlbx]sbA0D4D465452snlbxq' | dc This will help you for 99.9% of your problems ...
On Tue, Jun 10, 2008 at 1:40 PM, Anton Melser <melser.anton@gmail.com> wrote: > 2008/6/10 Dave Page <dpage@pgadmin.org>: >> The restore runs in an entirely separate process from pgAdmin, and >> doesn't stop you continuing to work whilst it runs (at least in my >> limited testing here). Maybe you're seeing some platform-specific >> quirk - what version are you running on what platform? > > Um... not on either Windows XP or Windows Server 2008 Standard > (finally a decent desktop!)... pgadmin stays "not responding" for the > entire restore. And yes, it's 1.8.4. I was testing on XP. In further testing, I find that a restore using the 'clean' option (new in SVN trunk) for some reason doesn't lock up the UI as other restores do (which are blocking whilst trying to read from the pg_restore stderr/stdout streams) . I cannot see any clear reason for this behaviour. A 'real' fix would probably involve firing off ExternProcessDialog::checkStreams() from a separate thread, rather than a timer in the main thread, though it would be nice to understand why it blocks in some cases but not others. Anyone with time to try that? -- Dave Page EnterpriseDB UK: http://www.enterprisedb.com