def delete_mount_info_from_fstab(self, lv_name):
lv_vg = self.get_lv_vg(lv_name)['lv_vg']
cmd = "sed -i '/\/dev\/mapper\/{0}-{1}/d' /etc/fstab".format(
lv_vg, lv_name)
proc = ShellCmd.execute_cmd(cmd)
delete_mount_info_from_fstab = 0
if not proc.returncode:
delete_mount_info_from_fstab = 1
return {'delete_mount_info_from_fstab': delete_mount_info_from_fstab}
def write_mount_info_to_fstab(self, lv_name, directory):
lv_vg = self.get_lv_vg(lv_name)['lv_vg']
mount_info = "/dev/mapper/{0}-{1} {2} ext3 defaults 0 0".\
format(lv_vg, lv_name, directory)
cmd = 'echo {0} >> /etc/fstab'.format(mount_info)
proc = ShellCmd.execute_cmd(cmd)
write_mount_dir_to_fstab = 0
if not proc.returncode:
write_mount_dir_to_fstab = 1
return {'write_mount_dir_to_fstab': write_mount_dir_to_fstab}
def mount_other_dir(self, lv_name, directory):
lv_vg = self.get_lv_vg(lv_name)['lv_vg']
lv_path = '/dev/{0}/{1}'.format(lv_vg, lv_name)
cmd = 'umount {0} && mkdir -p {1} && mount {0} {1}'.\
format(lv_path, directory)
proc = ShellCmd.execute_cmd(cmd)
lv_mount_dir = 0
if not proc.returncode:
lv_mount_dir = 1
return {'lv_mount_dir': lv_mount_dir}
def expand_fs(self, lv_name):
"""
扩展文件系统，需要耗费一些时间，
使用异步的方式处理。
"""
lv_vg = self.get_lv_vg(lv_name)['lv_vg']
lv_path = '/dev/{0}/{1}'.format(lv_vg, lv_name)
resize_2_fs = 0
cmd = 'resize2fs {0}'.format(lv_path)
proc = ShellCmd.execute_cmd(cmd)
if not proc.returncode:
resize_2_fs = 1
return {'resize_2_fs': resize_2_fs}
def migrate_data_and_make_link(self, lv_name, data_source):
"""
迁移大数据量的数据，需要花费很长的时间；
这里采用异步的方式处理。
"""
mount_dir = self.lv_vg_capacity_usedcapacity_dir(lv_name)['mount_dir']
migrate_data_make_link = 0
if mount_dir:
cmd = 'mv -f {0} {1}/ && ln -s {1}/elasticsearch {0}'.\
format(data_source, mount_dir)
proc = ShellCmd.execute_cmd(cmd)
if not proc.returncode:
migrate_data_make_link = 1
return {'migrate_data_make_link': migrate_data_make_link}
def lv_mount_dir(self, lv_name, directory):
"""
对逻辑卷进行格式化操作，非常耗时；逻辑卷容量越大，
需要的时间越长。
此处，采用异步的方式处理。
"""
lv_vg = self.get_lv_vg(lv_name)['lv_vg']
lv_path = '/dev/{0}/{1}'.format(lv_vg, lv_name)
cmd = "mkfs -t ext3 {0} && " \
"mkdir -p {1} && " \
"mount {0} {1}".format(lv_path, directory)
proc = ShellCmd.execute_cmd(cmd)
lv_mount_dir = 0
if not proc.returncode:
lv_mount_dir = 1
return {'lv_mount_dir': lv_mount_dir}
