hello there,
i found out that postgresql server prevents my ata disk from spinning
down.
it is not the logging i think. stracing the father process brings out
that every 5 minutes a child process does access a file:
11:50:13 fork() = 4988
[pid 4988] 11:50:13 close(3) = 0
[pid 4988] 11:50:13 close(4) = 0
[pid 4988] 11:50:13 close(6) = 0
[pid 4988] 11:50:13 close(7) = 0
[pid 4988] 11:50:13 getpid() = 4988
[pid 4988] 11:50:13 open("/var/lib/postgres/data/PG_VERSION", O_RDONLY)
= 3
[pid 4988] 11:50:13 fstat64(3, {st_mode=S_IFREG|0600, st_size=4, ...})
= 0
[pid 4988] 11:50:13 old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4001a000
[pid 4988] 11:50:13 read(3, "7.2\n", 4096) = 4
[pid 4988] 11:50:13 close(3) = 0
hmm.. maybe this is the course?
best regards,
clemens
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