oceanbase的日志量太大，撑爆磁盘，修改下日志级别

oceanbase的日志量太大，撑爆磁盘，修改下日志级别：

$admin@lnpg \~$ $ obclient -h127.0.0.1 -uroot -P2881 -plinux123

Welcome to the OceanBase. Commands end with ; or \g.

Your OceanBase connection id is 3221561020

Server version: OceanBase 3.2.4.1 (r101000052023010822-346aa35c32e99d1b82d713f75f0072c45bdf7aab) (Built Jan 8 2023 22:52:43)

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

obclient $(none)$ > show databases;

+--------------------+

| Database |

+--------------------+

| oceanbase |

| information_schema |

| mysql |

| SYS |

| LBACSYS |

| ORAAUDITOR |

| test |

+--------------------+

7 rows in set (0.081 sec)

obclient $(none)$ > use oceanbase;

Reading table information for completion of table and column names

You can turn off this feature to get a quicker startup with -A

Database changed

obclient $oceanbase$ > ALTER SYSTEM SET syslog_level=OFF;

ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your OceanBase version for the right syntax to use near 'OFF' at line 1

obclient $oceanbase$ > SHOW PARAMETERS LIKE '%syslog_level%';

+-------+----------+-----------------+----------+---------------------+-----------+-------+----------------------------------------------------------------------------------------------------------------------------------------+----------+---------+---------+-------------------+

2 rows in set (0.013 sec)

obclient $oceanbase$ > ALTER SYSTEM SET syslog_level='sql.*:error, common.*:error';
Query OK, 0 rows affected (0.027 sec)

obclient $oceanbase$ > ALTER SYSTEM SET ob_esi_syslog_level='sql.*:error, common.*:error';
Query OK, 0 rows affected (0.028 sec)

obclient $oceanbase$ > SHOW PARAMETERS LIKE '%syslog_level%';

+-------+----------+-----------------+----------+---------------------+-----------+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------+----------+---------+---------+-------------------+

2 rows in set (0.002 sec)

$admin@lnpg log$ $ pwd

/home/admin/oceanbase/log

$admin@lnpg log$ $ ls -lt

total 362364

-rw-r--r-- 1 admin admin 41844056 Oct 14 14:46 observer.log

-rw-r--r-- 1 admin admin 33424227 Oct 14 14:46 rootservice.log

-rw-r--r-- 1 admin admin 1506607 Oct 14 14:46 obesi-daemon.log

-rw-r--r-- 1 admin admin 21754 Oct 14 14:46 election.log

-rw-r--r-- 1 admin admin 295 Oct 14 14:42 observer.log.wf

-rw-r--r-- 1 admin admin 268462084 Oct 14 14:42 observer.log.20241014144215329

上述修改还是打印出了很多INFO信息

需要这样改才有效：

obclient $(none)$ > ALTER SYSTEM SET syslog_level='ERROR';
Query OK, 0 rows affected (0.026 sec)

obclient $(none)$ > ALTER SYSTEM SET ob_esi_syslog_level='ERROR';

Query OK, 0 rows affected (0.025 sec)

obclient $(none)$ > SHOW PARAMETERS LIKE '%syslog_level%';

2 rows in set (0.002 sec)

停止observer服务：

$admin@lnpg log$ $ pgrep observer

32239

$admin@lnpg log$ $ kill -9 `pgrep observer`

$admin@lnpg log$ $ obclient -h127.0.0.1 -uroot -P2881 -plinux123

ERROR 2002 (HY000): Can't connect to MySQL server on '127.0.0.1' (115)

$admin@lnpg log$ $ /home/admin/oceanbase/bin/observer

/home/admin/oceanbase/bin/observer

$admin@lnpg log$ $

$admin@lnpg log$ $ obclient -h127.0.0.1 -uroot -P2881 -plinux123

ERROR 2002 (HY000): Can't connect to MySQL server on '127.0.0.1' (115)

$admin@lnpg log$ $ obclient -h127.0.0.1 -uroot -P2881 -plinux123

ERROR 2002 (HY000): Can't connect to MySQL server on '127.0.0.1' (115)

$admin@lnpg log$ $ obclient -h127.0.0.1 -uroot -P2881 -plinux123

ERROR 2002 (HY000): Can't connect to MySQL server on '127.0.0.1' (115)

$admin@lnpg log$ $ pgrep observer

$admin@lnpg log$ $ obclient -h127.0.0.1 -uroot -P2881 -plinux123

ERROR 2002 (HY000): Can't connect to MySQL server on '127.0.0.1' (115)

$admin@lnpg log$ $ ps -ef|grep observer

admin 15555 10446 0 14:48 pts/2 00:00:00 grep --color=auto observer

必须这种方式启动，不能用绝对路径：
$admin@lnpg log$ $cd /home/admin/oceanbase/ \[admin@lnpg oceanbase\]$ ./bin/observer

./bin/observer

$admin@lnpg oceanbase$ $ ps -ef|grep observer

admin 15609 1 99 14:48 ? 00:00:04 ./bin/observer

admin 16597 10446 0 14:48 pts/2 00:00:00 grep --color=auto observer

$admin@lnpg oceanbase$ $ obclient -h127.0.0.1 -uroot -P2881 -plinux123

ERROR 1045 (42000): Access denied for user 'root'@'xxx.xxx.xxx.xxx' (using password: YES)

$admin@lnpg oceanbase$ $ obclient -h127.0.0.1 -uroot -P2881 -plinux123

ERROR 1045 (42000): Access denied for user 'root'@'xxx.xxx.xxx.xxx' (using password: YES)

$admin@lnpg oceanbase$ $ ps -ef|grep observer

admin 15609 1 99 14:48 ? 00:00:36 ./bin/observer

admin 16695 10446 0 14:48 pts/2 00:00:00 grep --color=auto observer

$admin@lnpg oceanbase$ $ ps -ef|grep observer

admin 15609 1 99 14:48 ? 00:01:10 ./bin/observer

admin 16896 10446 0 14:48 pts/2 00:00:00 grep --color=auto observer

$admin@lnpg oceanbase$ $ pgrep observer

15609

$admin@lnpg oceanbase$ $ ps -ef|grep 15609

admin 15609 1 99 14:48 ? 00:01:58 ./bin/observer

admin 15672 15609 1 14:48 ? 00:00:00 /home/admin/oceanbase/bin/obesi -d -p 2882 -c 10001

admin 16909 10446 0 14:49 pts/2 00:00:00 grep --color=auto 15609

$admin@lnpg oceanbase$ $ netstat -tunlp|grep 288

(Not all processes could be identified, non-owned process info

will not be shown, you would have to be root to see it all.)

tcp 0 0 0.0.0.0:2881 0.0.0.0:* LISTEN 15609/./bin/observe

tcp 0 0 0.0.0.0:2882 0.0.0.0:* LISTEN 15609/./bin/observe

$admin@lnpg oceanbase$ $ obclient -h127.0.0.1 -uroot -P2881 -plinux123

ERROR 1045 (42000): Access denied for user 'root'@'xxx.xxx.xxx.xxx' (using password: YES)

$admin@lnpg oceanbase$ $ obclient -h127.0.0.1 -uroot -P2881 -plinux123

ERROR 1045 (42000): Access denied for user 'root'@'xxx.xxx.xxx.xxx' (using password: YES)

$admin@lnpg oceanbase$ $ pwd

/home/admin/oceanbase

$admin@lnpg oceanbase$ $ cd log/

$admin@lnpg log$ $ ls -lt|head

total 1140008

-rw-r--r-- 1 admin admin 198392336 Oct 14 14:49 observer.log

-rw-r--r-- 1 admin admin 58051631 Oct 14 14:49 rootservice.log

-rw-r--r-- 1 admin admin 1066049 Oct 14 14:49 election.log

-rw-r--r-- 1 admin admin 1632648 Oct 14 14:49 obesi-daemon.log

-rw-r--r-- 1 admin admin 295 Oct 14 14:48 observer.log.wf

-rw-r--r-- 1 admin admin 268465971 Oct 14 14:48 observer.log.20241014144855728

-rw-r--r-- 1 admin admin 586 Oct 14 14:48 observer.log.wf.20241014144855728

drwxrwxr-x 2 admin admin 6 Oct 14 14:47 run

drwxrwxr-x 2 admin admin 50 Oct 14 14:47 audit

$admin@lnpg log$ $ date

Mon Oct 14 14:50:02 CST 2024

$admin@lnpg log$ $ tail -f observer.log

$admin@lnpg log$ $ obclient -h127.0.0.1 -uroot -P2881 -plinux123

Welcome to the OceanBase. Commands end with ; or \g.

Your OceanBase connection id is 3221487644

Server version: OceanBase 3.2.4.1 (r101000052023010822-346aa35c32e99d1b82d713f75f0072c45bdf7aab) (Built Jan 8 2023 22:52:43)

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

obclient $(none)$ > exit

Bye

$admin@lnpg log$ $

$admin@lnpg oceanbase$ $ find ./ -name *config*

./etc/observer.config.bin.history

./etc/observer.config.bin

$admin@lnpg oceanbase$ $ more ./etc/observer.config.bin

_enable_oracle_priv_check=True

major_compact_trigger=100

all_server_list=192.168.207.143:2882

__min_full_resource_pool_memory=268435456

min_observer_version=3.2.4.1

syslog_level=sql.*:error, common.*:error

cluster_id=10001

cluster=obdemo

rootservice_list=192.168.207.143:2882:2881

_partition_balance_strategy=standard

enable_one_phase_commit=False

system_memory=1G

memory_limit=20G

zone=zone1

devname=ens192

mysql_port=2881

rpc_port=2882

config_additional_dir=/db/ob/admin/1/obdemo/etc3;/db/ob/admin/log1/obdemo/etc2

datafile_size=10G

data_dir=/home/admin/oceanbase/store/obdemo

$admin@lnpg oceanbase$ $ pwd

/home/admin/oceanbase