def destroy_ram_fs( node_index ) :
(mount_target,log_dir,tlf_dir,head_dir) = build_node_dir_names( node_names[node_index] )
if os.path.isdir(mount_target) and os.path.ismount(mount_target):
cmd = ["sudo", "/bin/umount", mount_target]
(rc,out,err) = X.run(cmd)
if rc:
raise Exception("cmd:%s failed (%s,%s,%s)" % (str(cmd), rc,out,err))
def mount_ram_fs ( node_index ) :
(mount_target,log_dir,tlf_dir,head_dir) = Common.build_node_dir_names( Common.node_names[node_index] )
if X.fileExists( mount_target ) :
Common.stopOne( Common.node_names[node_index] )
cmd = ["umount", mount_target]
X.subprocess.check_call ( cmd )
X.removeDirTree( mount_target )
X.createDir ( mount_target )
if not os.path.isdir( mount_target ) :
raise Exception( "%s is not valid mount target as it is not a directory")
cmd = ["sudo", "mount", "-t", "tmpfs","-o","size=20m","tmpfs", mount_target]
(rc,out,err) = X.run(cmd)
if rc:
logging.info("out=%s", out)
logging.info("err = %s", err)
raise Exception("Mounting failed (rc=%s)" % rc)
