文章目录

1.概述

转载：/article/1176902908415913984.htm

由于本人失误，没有修改clickhouse的默认数据目录，导致把数据保存到了系统盘，现在系统盘空间不够，决定移动到数据盘，步骤如下：

原目录：/var/lib/clickhouse

目标目录：/test/clickhouse

1、复制数据

cp /var/lib/clickhouse/data -r /test/clickhousecp /var/lib/clickhouse/flags -r /test/clickhousecp /var/lib/clickhouse/format_schemas -r /test/clickhousecp /var/lib/clickhouse/metadata -r /test/clickhousecp /var/lib/clickhouse/preprocessed_configs -r /test/clickhousecp /var/lib/clickhouse/tmp -r /test/clickhousecp /var/lib/clickhouse/user_files -r /test/clickhouse

2、在目录/var/lib/clickhouse删除

rm -r datarm -r flags/rm -r format_schemas/rm -r metadata/rm -r preprocessed_configs/rm -r tmprm -r user_files/

3、建立软连接

ln -s /test/clickhouse/data /var/lib/clickhouseln -s /test/clickhouse/flags /var/lib/clickhouseln -s /test/clickhouse/format_schemas /var/lib/clickhouseln -s /test/clickhouse/metadata /var/lib/clickhouseln -s /test/clickhouse/preprocessed_configs /var/lib/clickhouseln -s /test/clickhouse/tmp /var/lib/clickhouseln -s /test/clickhouse/user_files /var/lib/clickhouse

4、给test/clickhouse目录权限

chown -R clickhouse.clickhouse /test/clickhouse

完成。