Ho kenngoa ha polokelo ea lintho ea LeoFS e ajoang, e tsamaellanang le bareki ba sebelisang S3, NFS

Ho ea ka Opennet: LeoFS - e ajoang polokelo ea lintho tse mamellang liphoso LeoFS, e lumellana le bareki ba sebelisang Amazon S3 API le REST-API, hape e tšehetsa mokhoa oa seva oa NFS. Ho na le lintlafatso tsa ho boloka lintho tse nyane le tse kholo haholo, ho na le mochini o hahelletsoeng ka har'a caching, 'me ho ka khoneha ho pheta-pheta polokelo lipakeng tsa litsi tsa data. Lipheo tsa morero li kenyelletsa ho fihlela ts'epo ea 99.9999999% ka ho pheta-pheta ho sa hlokahaleng le ho felisa ntlha e le 'ngoe ea ho hloleha. Khoutu ea projeke e ngotsoe ka Erlang.

LeoFS e na le likarolo tse tharo:

  • LeoFS Storage - e fana ka ts'ebetso ea ho eketsa, ho khutlisa le ho hlakola lintho le metadata, e ikarabella bakeng sa ho pheta-pheta, ho khutlisa le ho emisa likopo tsa bareki.
  • LeoFS Gateway - e sebeletsa likopo tsa HTTP mme e khutlisetsa likarabo ho bareki ba sebelisang REST-API kapa S3-API, e netefatsa caching ea data e hlokahalang haholo mohopolong le disk.
  • Motsamaisi oa LeoFS - e lekola ts'ebetso ea LeoFS Gateway le LeoFS Storage node, e lekola boemo ba li-node le ho hlahloba li-checksums. E netefatsa botšepehi ba data le ho fumaneha ha polokelo e phahameng.

Ka poso ena re tla kenya Leofs re sebelisa ansible-playbook le teko ea S3, NFS.

Haeba u leka ho kenya LeoFS u sebelisa libuka tsa lipapali tsa molao, u tla kopana le liphoso tse fapaneng: 1,2. Ka poso ena ke tla ngola se lokelang ho etsoa ho qoba liphoso tsena.

Moo o tla tsamaisa ansible-playbook, o hloka ho kenya netcat.

Inventory mohlala

Mohlala oa lethathamo (ho hosts.sample repository):

# 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_storage

Tokisetso ea seva

Ho thibela Selinux. Ke tšepa hore sechaba se tla theha maano a Selinux bakeng sa 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

bophirima netcat и redhat-lsb-core. netcat e hlokahalang bakeng sa leofs-adm, redhat-lsb-core ho hlokahala ho tseba mofuta oa OS mona.

    - name: Install Packages
      yum: name={{ item }} state=present
      with_items:
        - nmap-ncat
        - redhat-lsb-core

Ho theha mahlaku a mosebedisi le ho e kenya sehlopheng sa mabili

    - 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: yes

Ho kenya 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

Mofuta o felletseng oa buka ea ho bapala e lokisitsoeng e ka fumanoa mona: https://github.com/patsevanton/leofs_ansible

Ho kenya, ho hlophisa, ho qala

Ka mor'a moo re etsa joalo ka ha ho ngotsoe https://github.com/leo-project/leofs_ansible ntle le 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.yml

Ho hlahloba boemo ba sehlopha ho Primary LeoManager

leofs-adm status

Primary le Sekondari li ka bonoa ho ansible-playbook logs

Ho kenngoa ha polokelo ea lintho ea LeoFS e ajoang, e tsamaellanang le bareki ba sebelisang S3, NFS

Ho kenngoa ha polokelo ea lintho ea LeoFS e ajoang, e tsamaellanang le bareki ba sebelisang S3, NFS

Phello e tla ba ntho e kang ena

 [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
-------+----------------------+--------------+---------+----------------+----------------+----------------------------

Ho theha mosebelisi

Theha mosebelisi oa leafs:

leofs-adm create-user leofs leofs

  access-key-id: 9c2615f32e81e6a1caf5
  secret-access-key: 8aaaa35c1ad78a2cbfa1a6cd49ba8aaeb3ba39eb

Lenane la basebelisi:

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 +0000

Theha Bakete

E entse bakete

leofs-adm add-bucket leofs 9c2615f32e81e6a1caf5
OK

Lethathamo la libakete:

 leofs-adm get-buckets
cluster id   | bucket   | owner  | permissions      | created at                
-------------+----------+--------+------------------+---------------------------
leofs_1      | leofs    | leofs  | Me(full_control) | 2019-12-02 10:44:02 +0000

Ho lokisa s3cmd

Tšimong HTTP Proxy server name Hlalosa IP ea seva sa 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'

Haeba u fumana phoso ERROR: Phoso ea S3: 403 (AccessHanited): Phihlello e Hanne:

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 Denied

Ebe o hloka ho fetola signature_v3 ho 'Nete ho s2cmd config. Lintlha ho sena hlahisa.

Haeba signature_v2 ke Bohata, ho tla ba le phoso e kang ena:

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=%2F

Teko ea mojaro

Theha faele ea 1GB

fallocate -l 1GB 1gb

E kenye ho Leofs

time s3cmd put 1gb s3://leofs/
real    0m19.099s
user    0m7.855s
sys 0m1.620s

Lipalo

leofs-adm du bakeng sa node e le 1:

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: ____-__-__ __:__:__

Rea bona hore sephetho ha se na tsebo e ngata.

Ha re boneng hore na faele ena e hokae.
leofs-adm whereis 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 +0000

Kenya tšebetsong NFS

Re kenya tšebetsong NFS ho Leo Gateway 172.26.9.184 seva.

Kenya nfs-utils ho seva le moreki

sudo yum install nfs-utils

Ho ea ka litaelo, re tla lokisa faele ea tlhophiso /usr/local/leofs/current/leo_gateway/etc/leo_gateway.conf

protocol = nfs

Ho seva 172.26.9.184 matha rpcbind le leofs-gateway

sudo service rpcbind start
sudo service leofs-gateway restart

Ho seva moo leo_manager e sebetsang teng, theha nkho bakeng sa NFS 'me u hlahise senotlolo sa ho hokela NFS.

leofs-adm add-bucket test 05236
leofs-adm gen-nfs-mnt-key test 05236 ip-адрес-nfs-клиента

Ho hokela ho NFS

sudo mkdir /mnt/leofs
## for Linux - "sudo mount -t nfs -o nolock <host>:/<bucket>/<token> <dir>"
sudo mount -t nfs -o nolock ip-адрес-nfs-сервера-там-где-у-вас-установлен-gateway:/bucket/access_key_id/ключ-полученный-от-gen-nfs-mnt-key /mnt/leofs
sudo mount -t nfs -o nolock 172.26.9.184:/test/05236/bb5034f0c740148a346ed663ca0cf5157efb439f /mnt/leofs

Sheba sebaka sa disk ho sebelisa mofani oa NFS

Sebaka sa Disk, ho nahanoa hore sebaka se seng le se seng sa polokelo se na le disk ea 40GB (li-node tse 3 tse sebetsang, node e le 'ngoe e khomaretsoeng):

df -hP
Filesystem                                                         Size  Used Avail Use% Mounted on
172.26.9.184:/test/05236/e7298032e78749149dd83a1e366afb328811c95b   60G  3.6G   57G   6% /mnt/leofs

Ho kenngoa ha LeoFS ka li-node tse 6 tsa polokelo.

Inventory (ntle le sehahi):

# 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_storage

Boemo ba leafs-adm

Boemo ba leafs-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
-------+----------------------+--------------+---------+----------------+----------------+----------------------------

Sebaka sa Disk, ho nahanoa hore sebaka se seng le se seng sa polokelo se na le disk ea 40GB (li-node tse 6 tse sebetsang):

df -hP
Filesystem                                                         Size  Used Avail Use% Mounted on
172.26.9.184:/test/05236/e7298032e78749149dd83a1e366afb328811c95b  120G  3.6G  117G   3% /mnt/leofs

Haeba ho sebelisoa li-node tse 5 tsa polokelo

[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/leofs

Likota

Li-log li fumaneha ka har'a li-directory /usr/local/leofs/current/*/log

Seteishene sa Telegraph: SDS le Cluster FS

Source: www.habr.com

Eketsa ka tlhaloso