Hi Chris,
Could you send the ashtop event2 1=1 _from_ _to_ output for the 10 minutes
interval while the backup was hanging?
Let’s see if there was a log file sync problem at the same time.
Best regards,
Nenad
https://nenadnoveljic.com/blog/
From: Chris Stephens <cstephens16@xxxxxxxxx>
Sent: Dienstag, 28. Januar 2020 23:49
To: Noveljic Nenad <nenad.noveljic@xxxxxxxxxxxx>
Cc: cary.millsap@xxxxxxxxxxxx; Stefan Koehler <contact@xxxxxxxx>; oracle-l
<Oracle-L@xxxxxxxxxxxxx>
Subject: Re: intermittent long "log file sync" waits
was just getting ready to sign off and noticed the archivelog backup scheduled
to run every hour seems to be stuck and has been for at least 10 mins:
[oracle@lsst-oradb04 ~]$ ps -ef | grep oracle_backup.sh
oracle 13369 31167 0 16:43 pts/0 00:00:00 grep --color=auto
oracle_backup.sh
oracle 14649 14645 0 16:00 ? 00:00:00 /bin/bash
/home/oracle/scripts/rman/oracle_backup.sh -d lsst2db -s archivelog.rman -c
lsst2db_rman -e cs2018@xxxxxxxxxxxxxxxxx<mailto:cs2018@xxxxxxxxxxxxxxxxx> -r
iddsdba_rman
[oracle@lsst-oradb04 ~]$ pstack 15649
Process 15649 not found.
[oracle@lsst-oradb04 ~]$ pstack 14649
#0 0x00007f9a6537e41c in waitpid () from /lib64/libc.so.6
#1 0x0000000000440b84 in waitchld.isra.10 ()
#2 0x0000000000441e3c in wait_for ()
#3 0x0000000000433b0e in execute_command_internal ()
#4 0x0000000000433d2e in execute_command ()
#5 0x000000000041e365 in reader_loop ()
#6 0x000000000041c9ce in main ()
[oracle@lsst-oradb04 ~]$ pstack 14649
#0 0x00007f9a6537e41c in waitpid () from /lib64/libc.so.6
#1 0x0000000000440b84 in waitchld.isra.10 ()
#2 0x0000000000441e3c in wait_for ()
#3 0x0000000000433b0e in execute_command_internal ()
#4 0x0000000000433d2e in execute_command ()
#5 0x000000000041e365 in reader_loop ()
#6 0x000000000041c9ce in main ()
[oracle@lsst-oradb04 ~]$ pstack 14649
#0 0x00007f9a6537e41c in waitpid () from /lib64/libc.so.6
#1 0x0000000000440b84 in waitchld.isra.10 ()
#2 0x0000000000441e3c in wait_for ()
#3 0x0000000000433b0e in execute_command_internal ()
#4 0x0000000000433d2e in execute_command ()
#5 0x000000000041e365 in reader_loop ()
#6 0x000000000041c9ce in main ()
[oracle@lsst-oradb04 ~]$ pstack 14649
#0 0x00007f9a6537e41c in waitpid () from /lib64/libc.so.6
#1 0x0000000000440b84 in waitchld.isra.10 ()
#2 0x0000000000441e3c in wait_for ()
#3 0x0000000000433b0e in execute_command_internal ()
#4 0x0000000000433d2e in execute_command ()
#5 0x000000000041e365 in reader_loop ()
#6 0x000000000041c9ce in main ()
[oracle@lsst-oradb04 ~]$
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