Jesse Rehmer
unread,Jul 8, 2022, 7:41:30 AM7/8/22You do not have permission to delete messages in this group
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I'm noticing very slow XOVER behavior with some of the larger groups on my
server. When I look at what nnrpd is doing it appears to be touching every
article on the spool for that group during XOVER. I *thought* the data
provided by the XOVER command came from the overview database. What I see with
truss is that it is accessing every article and while I'm watching never
accesses the overview database.
Is this expected behavior from XOVER? This is a large group with 1.3 million
articles, so I don't expect instant response, but surprised to see the nnrpd
process doesn't appear to be using overview data from what I can see with
truss:
<snipped millions of similar lines>
access("/usr/local/news/spool/articles/rec/arts/tv/1279573",R_OK) = 0 (0x0)
access("/usr/local/news/spool/articles/rec/arts/tv/1279574",R_OK) = 0 (0x0)
access("/usr/local/news/spool/articles/rec/arts/tv/1279575",R_OK) = 0 (0x0)
access("/usr/local/news/spool/articles/rec/arts/tv/1279576",R_OK) = 0 (0x0)
access("/usr/local/news/spool/articles/rec/arts/tv/1279577",R_OK) = 0 (0x0)
access("/usr/local/news/spool/articles/rec/arts/tv/1279578",R_OK) = 0 (0x0)
access("/usr/local/news/spool/articles/rec/arts/tv/1279579",R_OK) = 0 (0x0)
access("/usr/local/news/spool/articles/rec/arts/tv/1279580",R_OK) = 0 (0x0)
access("/usr/local/news/spool/articles/alt/fan/rush-limbaugh/521666",R_OK) = 0
(0x0)
access("/usr/local/news/spool/articles/alt/politics/usa/127302",R_OK) = 0
(0x0)
access("/usr/local/news/spool/articles/alt/fan/rush-limbaugh/521668",R_OK) = 0
(0x0)
access("/usr/local/news/spool/articles/alt/fan/rush-limbaugh/521669",R_OK) = 0
(0x0)
access("/usr/local/news/spool/articles/alt/fan/rush-limbaugh/521670",R_OK) = 0
(0x0)
access("/usr/local/news/spool/articles/rec/arts/tv/1321380",R_OK) = 0 (0x0)
access("/usr/local/news/spool/articles/rec/arts/tv/1321381",R_OK) = 0 (0x0)
access("/usr/local/news/spool/articles/alt/fan/rush-limbaugh/521671",R_OK) = 0
(0x0)
access("/usr/local/news/spool/articles/alt/fan/rush-limbaugh/521672",R_OK) = 0
(0x0)
access("/usr/local/news/spool/articles/alt/politics/usa/127303",R_OK) = 0
(0x0)
access("/usr/local/news/spool/articles/rec/arts/tv/1321385",R_OK) = 0 (0x0)
access("/usr/local/news/spool/articles/alt/survival/84115",R_OK) = 0 (0x0)
access("/usr/local/news/spool/articles/rec/arts/tv/1321387",R_OK) = 0 (0x0)
write(1,"\^W\^C\^C@\^X_\M-'\M-$>\M^M\M^Y"...,16413) = 16413 (0x401d)
write(1,"\^W\^C\^C@\^X_\M-'\M-$>\M^M\M^Y"...,16413) = 16413 (0x401d)
write(1,"\^W\^C\^C@\^X_\M-'\M-$>\M^M\M^Y"...,16413) = 16413 (0x401d)
write(1,"\^W\^C\^C@\^X_\M-'\M-$>\M^M\M^Y"...,16413) = 16413 (0x401d)
write(1,"\^W\^C\^C@\^X_\M-'\M-$>\M^M\M^Y"...,16413) = 16413 (0x401d)
write(1,"\^W\^C\^C@\^X_\M-'\M-$>\M^M\M^Y"...,16413) = 16413 (0x401d)
write(1,"\^W\^C\^C@\^X_\M-'\M-$>\M^M\M^Y"...,16413) = 16413 (0x401d)
write(1,"\^W\^C\^C@\^X_\M-'\M-$>\M^M\M^Y"...,16413) = 16413 (0x401d)
write(1,"\^W\^C\^C\^TT_\M-'\M-$>\M^M\M^Y"...,5209) = 5209 (0x1459)
sigprocmask(SIG_SETMASK,{
SIGHUP|SIGINT|SIGQUIT|SIGILL|SIGTRAP|SIGABRT|SIGEMT|SIGFPE|SIGKILL|SIGBUS|SIG
SEGV|SIGSYS|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SI
GTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR
1|SIGUSR2 },{ }) = 0 (0x0)
sigaction(SIGALRM,{ 0x80192ba00 SA_RESTART|SA_SIGINFO ss_t },{ SIG_DFL
SA_RESTART ss_t }) = 0 (0x0)
sigprocmask(SIG_SETMASK,{ },0x0) = 0 (0x0)
setitimer(0,{ 0.000000, 1800.000000 },{ 0.000000, 0.000000 }) = 0 (0x0)