Heikki Linnakangas <[EMAIL PROTECTED]> wrote: > Now that the CheckpointStartLock starvation has been taken care of, I'm > seeing another problem with checkpoints in my test run: mdsync never > finishes. > > My proposed fix is to make a copy of pendingOpsTable before entering the > loop. AbsorbFsyncRequest will put new requests to a fresh new > pendingOpsTable, while the mdsync loop will drain the copy. I'll write a > patch along those lines if there's no better ideas.
Yeah, I'm also anxious about the stuck. I wrote a fix to use a copy of pendingOpsTable as you said, when I implemented Load distributed checkpoint patch. (http://momjian.us/mhonarc/patches/msg00025.html) It would make me very happy if you review my patch and check whether my fix is proper. There was another reason to fix it in my patch. I wanted to fsync files only once for each file because bgwriter sleeps for each file in my patch. Regards, --- ITAGAKI Takahiro NTT Open Source Software Center ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend
