1.概述

转载：https://www.it610.com/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/clickhouse
cp /var/lib/clickhouse/flags -r  /test/clickhouse
cp /var/lib/clickhouse/format_schemas -r  /test/clickhouse
cp /var/lib/clickhouse/metadata -r  /test/clickhouse
cp /var/lib/clickhouse/preprocessed_configs -r  /test/clickhouse
cp /var/lib/clickhouse/tmp -r  /test/clickhouse
cp /var/lib/clickhouse/user_files -r  /test/clickhouse

2、在目录/var/lib/clickhouse删除

rm -r data
rm -r flags/
rm -r format_schemas/
rm -r metadata/
rm -r preprocessed_configs/
rm -r tmp
rm -r user_files/

3、建立软连接

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

4、给test/clickhouse目录权限

chown -R clickhouse.clickhouse /test/clickhouse

完成。