Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Not a Bug
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10.2.9
Description
Looks like MariaDB 10.2.x is also affected by upstream https://bugs.mysql.com/bug.php?id=88006. When started with all default settings I do not see RSS growing for mysqld process (it's stabilized after some time):
top - 09:06:45 up 2 days, 14:11, 4 users, load average: 1,01, 1,19, 1,41
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Tasks: 223 total, 1 running, 222 sleeping, 0 stopped, 0 zombie
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%Cpu(s): 49,8 us, 1,5 sy, 0,0 ni, 47,5 id, 1,2 wa, 0,0 hi, 0,0 si, 0,0 st
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KiB Mem: 3861436 total, 3530408 used, 331028 free, 235588 buffers
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KiB Swap: 4001788 total, 105732 used, 3896056 free. 1961032 cached Mem
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PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
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17426 openxs 20 0 1769628 257460 14932 S 98,7 6,7 49:55.48 mysqld
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...
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But after many minutes of waiting I still do not get the result:
openxs@ao756:~/dbs/maria10.2$ bin/mysqld_safe --no-defaults --port=3308 & [1] 17355
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openxs@ao756:~/dbs/maria10.2$ 171006 08:12:57 mysqld_safe Logging to '/home/openxs/dbs/maria10.2/data/ao756.err'.
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171006 08:12:57 mysqld_safe Starting mysqld daemon with databases from /home/openxs/dbs/maria10.2/data
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openxs@ao756:~/dbs/maria10.2$ bin/mysql -uroot test
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Reading table information for completion of table and column names
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You can turn off this feature to get a quicker startup with -A
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Welcome to the MariaDB monitor. Commands end with ; or \g.
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Your MariaDB connection id is 8
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Server version: 10.2.9-MariaDB Source distribution
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Copyright (c) 2000, 2017, Oracle, MariaDB Corporation Ab and others.
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Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
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MariaDB [test]> WITH RECURSIVE
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-> input(sud) AS (
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-> SELECT '53..7....6..195....98....6.8...6...34..8.3..17...2...6.6....28....419..5....8..79'
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-> ),
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-> digits(z, lp) AS (
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-> SELECT '1', 1
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-> UNION ALL SELECT
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-> CAST(lp+1 AS CHAR), lp+1 FROM digits WHERE lp<9
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-> ),
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-> x(s, ind) AS (
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-> SELECT sud, instr(sud, '.') FROM input
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-> UNION ALL
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-> SELECT
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-> concat(substr(s, 1, ind-1) , z , substr(s, ind+1)),
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-> instr( concat(substr(s, 1, ind-1) ,z ,substr(s, ind+1)), '.' )
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-> FROM x, digits AS z
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-> WHERE ind>0
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-> AND NOT EXISTS (
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-> SELECT 1
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-> FROM digits AS lp
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-> WHERE z.z = substr(s, ((ind-1)/9)*9 + lp, 1)
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-> OR z.z = substr(s, ((ind-1)%9) + (lp-1)*9 + 1, 1)
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-> OR z.z = substr(s, (((ind-1)/3) % 3) * 3
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-> + ((ind-1)/27) * 27 + lp
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-> + ((lp-1) / 3) * 6, 1)
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-> )
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-> )
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-> SELECT s FROM x WHERE ind=0;
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