Re: [HACKERS] RE: xlog checkpoint depends on sync() ... seems uns afe

2001-03-12 Thread Giles Lean
> Sounds quite unreliable to me. Unless there's some interlock ... like, > say, the second sync not being able to advance past a buffer page that's > as yet unwritten by the first sync. But would all Unixen share such a > strange detail of implementation? I heard Kirk McKusick tell this story

Re: [HACKERS] RE: xlog checkpoint depends on sync() ... seems uns afe

2001-03-12 Thread Doug McNaught
Tom Lane <[EMAIL PROTECTED]> writes: > "Mikheev, Vadim" <[EMAIL PROTECTED]> writes: > >> The idea is, that by the time the last sync has run, the > >> first sync will be done flushing the buffers to disk. - this is what > >> we were told by the IBM engineers when I worked tier-2/3 AIX support >

Re: [HACKERS] RE: xlog checkpoint depends on sync() ... seems uns afe

2001-03-12 Thread Tom Lane
"Mikheev, Vadim" <[EMAIL PROTECTED]> writes: >> The idea is, that by the time the last sync has run, the >> first sync will be done flushing the buffers to disk. - this is what >> we were told by the IBM engineers when I worked tier-2/3 AIX support >> at IBM. > I was told the same a long ago abo