Menurut : β penyimpanan objek yang toleran terhadap kesalahan terdistribusi , kompatibel dengan klien yang menggunakan API Amazon S3 dan REST-API, dan juga mendukung mode server NFS. Terdapat optimalisasi untuk menyimpan objek kecil dan sangat besar, terdapat mekanisme caching bawaan, dan replikasi penyimpanan antar pusat data dimungkinkan. Sasaran proyek ini mencakup mencapai keandalan 99.9999999% melalui replikasi duplikat yang berlebihan dan menghilangkan satu titik kegagalan. Kode proyek ditulis dalam Erlang.
LeoFS terdiri dari tiga komponen:
- β melayani operasi penambahan, pengambilan dan penghapusan objek dan metadata, bertanggung jawab untuk melakukan replikasi, pemulihan, dan mengantri permintaan klien.
- β melayani permintaan HTTP dan mengalihkan respons ke klien menggunakan REST-API atau S3-API, memastikan cache data yang paling dibutuhkan di memori dan disk.
- β memantau pengoperasian node LeoFS Gateway dan LeoFS Storage, memantau status node dan memeriksa checksum. Menjamin integritas data dan ketersediaan penyimpanan yang tinggi.
Dalam posting ini kita akan menginstal Leofs menggunakan playbook yang memungkinkan dan menguji S3, NFS.
Jika Anda mencoba menginstal LeoFS menggunakan pedoman resmi, Anda akan menemukan berbagai kesalahan: ,. Pada postingan kali ini saya akan menulis apa saja yang perlu dilakukan untuk menghindari kesalahan tersebut.
Di mana Anda akan menjalankan ansible-playbook, Anda perlu menginstal netcat.
Contoh inventaris
Contoh inventaris (di repositori host.sample):
# Please check roles/common/vars/leofs_releases for available versions
[all:vars]
leofs_version=1.4.3
build_temp_path="/tmp/leofs_builder"
build_install_path="/tmp/"
build_branch="master"
source="package"
#[builder]
#172.26.9.177
# nodename of leo_manager_0 and leo_manager_1 are set at group_vars/all
[leo_manager_0]
172.26.9.176
# nodename of leo_manager_0 and leo_manager_1 are set at group_vars/all
[leo_manager_1]
172.26.9.178
[leo_storage]
172.26.9.179 [email protected]
172.26.9.181 [email protected]
172.26.9.182 [email protected]
172.26.9.183 [email protected]
[leo_gateway]
172.26.9.180 [email protected]
172.26.9.184 [email protected]
[leofs_nodes:children]
leo_manager_0
leo_manager_1
leo_gateway
leo_storagePersiapan pelayan
Menonaktifkan Selinux. Saya berharap komunitas akan membuat kebijakan Selinux untuk LeoFS.
- name: Install libselinux as prerequisite for SELinux Ansible module
yum:
name: "{{item}}"
state: latest
with_items:
- libselinux-python
- libsemanage-python
- name: Disable SELinux at next reboot
selinux:
state: disabled
- name: Set SELinux in permissive mode until the machine is rebooted
command: setenforce 0
ignore_errors: true
changed_when: false
Instalasi netcat ΠΈ redhat-lsb-core. netcat dibutuhkan untuk leofs-adm, redhat-lsb-core diperlukan untuk menentukan versi OS .
- name: Install Packages
yum: name={{ item }} state=present
with_items:
- nmap-ncat
- redhat-lsb-coreMembuat leofs pengguna dan menambahkannya ke grup roda
- name: Create user leofs
group:
name: leofs
state: present
- name: Allow 'wheel' group to have passwordless sudo
lineinfile:
dest: /etc/sudoers
state: present
regexp: '^%wheel'
line: '%wheel ALL=(ALL) NOPASSWD: ALL'
validate: 'visudo -cf %s'
- name: Add the user 'leofs' to group 'wheel'
user:
name: leofs
groups: wheel
append: yesMenginstal Erlang
- name: Remote erlang-20.3.8.23-1.el7.x86_64.rpm install with yum
yum: name=https://github.com/rabbitmq/erlang-rpm/releases/download/v20.3.8.23/erlang-20.3.8.23-1.el7.x86_64.rpm
Versi lengkap dari buku pedoman Ansible yang telah diperbaiki dapat ditemukan di sini:
Instalasi, konfigurasi, peluncuran
Selanjutnya kita tampil seperti yang tertulis tanpa build_leofs.yml
## Install LeoFS
$ ansible-playbook -i hosts install_leofs.yml
## Config LeoFS
$ ansible-playbook -i hosts config_leofs.yml
## Start LeoFS
$ ansible-playbook -i hosts start_leofs.ymlMemeriksa status cluster di LeoManager Utama
leofs-adm statusPrimer dan Sekunder dapat dilihat di log buku pedoman yang memungkinkan
Outputnya akan menjadi seperti ini
[System Confiuration]
-----------------------------------+----------
Item | Value
-----------------------------------+----------
Basic/Consistency level
-----------------------------------+----------
system version | 1.4.3
cluster Id | leofs_1
DC Id | dc_1
Total replicas | 2
number of successes of R | 1
number of successes of W | 1
number of successes of D | 1
number of rack-awareness replicas | 0
ring size | 2^128
-----------------------------------+----------
Multi DC replication settings
-----------------------------------+----------
[mdcr] max number of joinable DCs | 2
[mdcr] total replicas per a DC | 1
[mdcr] number of successes of R | 1
[mdcr] number of successes of W | 1
[mdcr] number of successes of D | 1
-----------------------------------+----------
Manager RING hash
-----------------------------------+----------
current ring-hash | a0314afb
previous ring-hash | a0314afb
-----------------------------------+----------
[State of Node(s)]
-------+----------------------+--------------+---------+----------------+----------------+----------------------------
type | node | state | rack id | current ring | prev ring | updated at
-------+----------------------+--------------+---------+----------------+----------------+----------------------------
S | [email protected] | running | | a0314afb | a0314afb | 2019-12-05 10:33:47 +0000
S | [email protected] | running | | a0314afb | a0314afb | 2019-12-05 10:33:47 +0000
S | [email protected] | running | | a0314afb | a0314afb | 2019-12-05 10:33:47 +0000
S | [email protected] | attached | | | | 2019-12-05 10:33:58 +0000
G | [email protected] | running | | a0314afb | a0314afb | 2019-12-05 10:33:49 +0000
G | [email protected] | running | | a0314afb | a0314afb | 2019-12-05 10:33:49 +0000
-------+----------------------+--------------+---------+----------------+----------------+----------------------------Membuat pengguna
Buat pengguna leofs:
leofs-adm create-user leofs leofs
access-key-id: 9c2615f32e81e6a1caf5
secret-access-key: 8aaaa35c1ad78a2cbfa1a6cd49ba8aaeb3ba39ebDaftar pengguna:
leofs-adm get-users
user_id | role_id | access_key_id | created_at
------------+---------+------------------------+---------------------------
_test_leofs | 9 | 05236 | 2019-12-02 06:56:49 +0000
leofs | 1 | 9c2615f32e81e6a1caf5 | 2019-12-02 10:43:29 +0000Buat Ember
Membuat ember
leofs-adm add-bucket leofs 9c2615f32e81e6a1caf5
OKDaftar Keinginan:
leofs-adm get-buckets
cluster id | bucket | owner | permissions | created at
-------------+----------+--------+------------------+---------------------------
leofs_1 | leofs | leofs | Me(full_control) | 2019-12-02 10:44:02 +0000Konfigurasi s3cmd
Di lapangan HTTP Proxy server name tentukan IP server Gateway
s3cmd --configure
Enter new values or accept defaults in brackets with Enter.
Refer to user manual for detailed description of all options.
Access key and Secret key are your identifiers for Amazon S3. Leave them empty for using the env variables.
Access Key [9c2615f32e81e6a1caf5]:
Secret Key [8aaaa35c1ad78a2cbfa1a6cd49ba8aaeb3ba39eb]:
Default Region [US]:
Use "s3.amazonaws.com" for S3 Endpoint and not modify it to the target Amazon S3.
S3 Endpoint [s3.amazonaws.com]:
Use "%(bucket)s.s3.amazonaws.com" to the target Amazon S3. "%(bucket)s" and "%(location)s" vars can be used
if the target S3 system supports dns based buckets.
DNS-style bucket+hostname:port template for accessing a bucket [%(bucket)s.s3.amazonaws.com]: leofs
Encryption password is used to protect your files from reading
by unauthorized persons while in transfer to S3
Encryption password:
Path to GPG program [/usr/bin/gpg]:
When using secure HTTPS protocol all communication with Amazon S3
servers is protected from 3rd party eavesdropping. This method is
slower than plain HTTP, and can only be proxied with Python 2.7 or newer
Use HTTPS protocol [No]:
On some networks all internet access must go through a HTTP proxy.
Try setting it here if you can't connect to S3 directly
HTTP Proxy server name [172.26.9.180]:
HTTP Proxy server port [8080]:
New settings:
Access Key: 9c2615f32e81e6a1caf5
Secret Key: 8aaaa35c1ad78a2cbfa1a6cd49ba8aaeb3ba39eb
Default Region: US
S3 Endpoint: s3.amazonaws.com
DNS-style bucket+hostname:port template for accessing a bucket: leofs
Encryption password:
Path to GPG program: /usr/bin/gpg
Use HTTPS protocol: False
HTTP Proxy server name: 172.26.9.180
HTTP Proxy server port: 8080
Test access with supplied credentials? [Y/n] Y
Please wait, attempting to list all buckets...
Success. Your access key and secret key worked fine :-)
Now verifying that encryption works...
Not configured. Never mind.
Save settings? [y/N] y
Configuration saved to '/home/user/.s3cfg'Jika Anda mendapatkan kesalahan ERROR: S3 error: 403 (AccessDenied): Access Denied:
s3cmd put test.py s3://leofs/
upload: 'test.py' -> 's3://leofs/test.py' [1 of 1]
382 of 382 100% in 0s 3.40 kB/s done
ERROR: S3 error: 403 (AccessDenied): Access DeniedMaka Anda perlu mengubah signature_v3 menjadi True di konfigurasi s2cmd. Detailnya di sini .
Jika signature_v2 bernilai False, maka akan terjadi error seperti ini:
WARNING: Retrying failed request: /?delimiter=%2F (getaddrinfo() argument 2 must be integer or string)
WARNING: Waiting 3 sec...
WARNING: Retrying failed request: /?delimiter=%2F (getaddrinfo() argument 2 must be integer or string)
WARNING: Waiting 6 sec...
ERROR: Test failed: Request failed for: /?delimiter=%2FPengujian beban
Buat file 1GB
fallocate -l 1GB 1gbUnggah ke Leofs
time s3cmd put 1gb s3://leofs/
real 0m19.099s
user 0m7.855s
sys 0m1.620sstatistika
leofs-adm du untuk 1 node:
leofs-adm du [email protected]
active number of objects: 156
total number of objects: 156
active size of objects: 602954495
total size of objects: 602954495
ratio of active size: 100.0%
last compaction start: ____-__-__ __:__:__
last compaction end: ____-__-__ __:__:__Kami melihat bahwa kesimpulannya tidak terlalu informatif.
Mari kita lihat di mana file ini berada.
leofs-adm dimana leofs/1gb
leofs-adm whereis leofs/1gb
-------+----------------------+--------------------------------------+------------+--------------+----------------+----------------+----------------+----------------------------
del? | node | ring address | size | checksum | has children | total chunks | clock | when
-------+----------------------+--------------------------------------+------------+--------------+----------------+----------------+----------------+----------------------------
| [email protected] | 657a9f3a3db822a7f1f5050925b26270 | 976563K | a4634eea55 | true | 64 | 598f2aa976a4f | 2019-12-05 10:48:15 +0000
| [email protected] | 657a9f3a3db822a7f1f5050925b26270 | 976563K | a4634eea55 | true | 64 | 598f2aa976a4f | 2019-12-05 10:48:15 +0000Aktifkan NFS
Kami mengaktifkan NFS di server Leo Gateway 172.26.9.184.
Instal nfs-utils di server dan klien
sudo yum install nfs-utilsSesuai petunjuk, kami akan memperbaiki file konfigurasi /usr/local/leofs/current/leo_gateway/etc/leo_gateway.conf
protocol = nfsDi server 172.26.9.184 jalankan rpcbind dan leofs-gateway
sudo service rpcbind start
sudo service leofs-gateway restartDi server tempat leo_manager berjalan, buat bucket untuk NFS dan buat kunci untuk menghubungkan ke NFS
leofs-adm add-bucket test 05236
leofs-adm gen-nfs-mnt-key test 05236 ip-Π°Π΄ΡΠ΅Ρ-nfs-ΠΊΠ»ΠΈΠ΅Π½ΡΠ°Menghubungkan ke NFS
sudo mkdir /mnt/leofs
## for Linux - "sudo mount -t nfs -o nolock <host>:/<bucket>/<token> <dir>"
sudo mount -t nfs -o nolock ip-Π°Π΄ΡΠ΅Ρ-nfs-ΡΠ΅ΡΠ²Π΅ΡΠ°-ΡΠ°ΠΌ-Π³Π΄Π΅-Ρ-Π²Π°Ρ-ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½-gateway:/bucket/access_key_id/ΠΊΠ»ΡΡ-ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΠΉ-ΠΎΡ-gen-nfs-mnt-key /mnt/leofs
sudo mount -t nfs -o nolock 172.26.9.184:/test/05236/bb5034f0c740148a346ed663ca0cf5157efb439f /mnt/leofsLihat ruang disk melalui klien NFS
Ruang disk, dengan mempertimbangkan bahwa setiap node penyimpanan memiliki disk 40 GB (3 node berjalan, 1 node terlampir):
df -hP
Filesystem Size Used Avail Use% Mounted on
172.26.9.184:/test/05236/e7298032e78749149dd83a1e366afb328811c95b 60G 3.6G 57G 6% /mnt/leofsPemasangan LeoFS dengan 6 node penyimpanan.
Inventaris (tanpa pembuat):
# Please check roles/common/vars/leofs_releases for available versions
[all:vars]
leofs_version=1.4.3
build_temp_path="/tmp/leofs_builder"
build_install_path="/tmp/"
build_branch="master"
source="package"
# nodename of leo_manager_0 and leo_manager_1 are set at group_vars/all
[leo_manager_0]
172.26.9.177
# nodename of leo_manager_0 and leo_manager_1 are set at group_vars/all
[leo_manager_1]
172.26.9.176
[leo_storage]
172.26.9.178 [email protected]
172.26.9.179 [email protected]
172.26.9.181 [email protected]
172.26.9.182 [email protected]
172.26.9.183 [email protected]
172.26.9.185 [email protected]
[leo_gateway]
172.26.9.180 [email protected]
172.26.9.184 [email protected]
[leofs_nodes:children]
leo_manager_0
leo_manager_1
leo_gateway
leo_storageKeluaran status leofs-adm
Keluaran status leofs-adm
[System Confiuration]
-----------------------------------+----------
Item | Value
-----------------------------------+----------
Basic/Consistency level
-----------------------------------+----------
system version | 1.4.3
cluster Id | leofs_1
DC Id | dc_1
Total replicas | 2
number of successes of R | 1
number of successes of W | 1
number of successes of D | 1
number of rack-awareness replicas | 0
ring size | 2^128
-----------------------------------+----------
Multi DC replication settings
-----------------------------------+----------
[mdcr] max number of joinable DCs | 2
[mdcr] total replicas per a DC | 1
[mdcr] number of successes of R | 1
[mdcr] number of successes of W | 1
[mdcr] number of successes of D | 1
-----------------------------------+----------
Manager RING hash
-----------------------------------+----------
current ring-hash | d8ff465e
previous ring-hash | d8ff465e
-----------------------------------+----------
[State of Node(s)]
-------+----------------------+--------------+---------+----------------+----------------+----------------------------
type | node | state | rack id | current ring | prev ring | updated at
-------+----------------------+--------------+---------+----------------+----------------+----------------------------
S | [email protected] | running | | d8ff465e | d8ff465e | 2019-12-06 05:18:29 +0000
S | [email protected] | running | | d8ff465e | d8ff465e | 2019-12-06 05:18:29 +0000
S | [email protected] | running | | d8ff465e | d8ff465e | 2019-12-06 05:18:30 +0000
S | [email protected] | running | | d8ff465e | d8ff465e | 2019-12-06 05:18:29 +0000
S | [email protected] | running | | d8ff465e | d8ff465e | 2019-12-06 05:18:29 +0000
S | [email protected] | running | | d8ff465e | d8ff465e | 2019-12-06 05:18:29 +0000
G | [email protected] | running | | d8ff465e | d8ff465e | 2019-12-06 05:18:31 +0000
G | [email protected] | running | | d8ff465e | d8ff465e | 2019-12-06 05:18:31 +0000
-------+----------------------+--------------+---------+----------------+----------------+----------------------------Ruang disk, dengan mempertimbangkan bahwa setiap node penyimpanan memiliki disk 40 GB (6 node berjalan):
df -hP
Filesystem Size Used Avail Use% Mounted on
172.26.9.184:/test/05236/e7298032e78749149dd83a1e366afb328811c95b 120G 3.6G 117G 3% /mnt/leofsJika 5 node penyimpanan digunakan
[leo_storage]
172.26.9.178 [email protected]
172.26.9.179 [email protected]
172.26.9.181 [email protected]
172.26.9.182 [email protected]
172.26.9.183 [email protected]df -hP
172.26.9.184:/test/05236/e7298032e78749149dd83a1e366afb328811c95b 100G 3.0G 97G 3% /mnt/leofsLog
Log terletak di direktori /usr/local/leofs/current/*/log
Π΅Π»Π΅Π³ΡΠ°ΠΌ Π°Π½Π°Π»:
Sumber: www.habr.com