follow the official document
If you encounter any problem when you start the minio service, run journalctl -u minio to check the further logs first.
Run the following commands, if your disk has been mounted, you need to unmount it first
apt install xfsprogs mkfs.xfs /dev/sdb -L DISK1 Add the entry to /etc/fstab, then you don’t need to mount it again after each reboot:
LABEL=DISK2 /mnt/disk2 xfs defaults,noatime 0 2
edit /etc/fstab add blow entry(only for ext):
/dev/sdb1 /media/disk2 ext2 defaults 0 2 /dev/sdb1 device: /dev location or uuid. /media/disk2 mount point. ext2 file system type: get it from file -s /dev/sdb1 command. defaults options. 0 dump. 1 pass num. more detail refer to ubuntu Fstab
CPU/GPU lm-sensors 可以监测cpu/gpu的温度 # install sudo sensors-detect # check temperature sensors 但是因为linux内核的更新速度，最新的cpu和gpu一般无法识别，也无法监测温度 这时候可以
Library gradle:
implementation("com.fasterxml.jackson.dataformat:jackson-dataformat-csv") You don’t need to specify the version in normally spring boot project, because your parent dependency already has it.
Code val schema = CsvSchema.emptySchema().withHeader() val mapper: ObjectReader = CsvMapper().readerFor(MyEntity::class.java).with(schema) mapper.readValues<MyEntity>(csvJson).readAll() In MyEntity, you don’t need any other annotations, just normal fasterxml annotations is enough:
class MyEntity{ @JsonProperty("first_string") var firstString: String? = null @JsonProperty("second_string") var secondString: String? = null @JsonProperty("third_date") @JsonFormat(pattern = "yyyy-MM-dd", timezone = "Asia/Shanghai") var thirdDate: Date?
unmappable character for encoding windows-1252 解决方法： 在gradle文件中添加如下内容： javadoc { options.encoding = 'UTF-8' }
struct Test{ var param1 = false func method1() { param1 = true } } param1 = true will throw the exception Cannot assign to property: 'self' is immutable
The reason is that struct is saved in stack memory, so its parameters cannot be modified.
But we can change it through mutating:
struct Test{ var param1 = false mutating func method1() { param1 = true } } Refer to stack overflow