Enligt : — distribuerad feltolerant objektlagring , kompatibel med klienter som använder Amazon S3 API och REST API, och stöder även NFS-serverläge. Det finns optimeringar för att lagra både små och mycket stora objekt, det finns en inbyggd cachningsmekanism och replikering av lagring mellan datacenter är möjlig. Projektets mål inkluderar att uppnå 99.9999999 % tillförlitlighet genom redundant replikering av dubbletter och att eliminera en enda felpunkt (SFC). Projektkoden är skriven i Erlang.
LeoFS består av tre komponenter:
- — hanterar operationer för att lägga till, hämta och ta bort objekt och metadata, ansvarar för att utföra replikering, återställning och skapa en kö med klientförfrågningar.
- — hanterar HTTP-förfrågningar och vidarebefordrar svar till klienter med hjälp av REST API eller S3 API, tillhandahåller cachning av de mest efterfrågade uppgifterna i minnet och på disken.
- — övervakar driften av LeoFS Gateway- och LeoFS Storage-noderna, övervakar nodernas status och kontrollerar kontrollsummor. Säkerställer dataintegritet och hög tillgänglighet av lagring.
I det här inlägget kommer vi att installera Leofs med hjälp av ansible-playbook, test S3, NFS.
Om du försöker installera LeoFS med officiella playbooks kommer du att stöta på olika fel: ,. I det här inlägget kommer jag att skriva vad som behöver göras för att undvika dessa misstag.
Där du ska köra ansible-playbook måste du installera netcat.
Exempel på lager
Inventeringsexempel (i hosts.sample-arkivet):
# 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 leofs_module_nodename=S0@172.26.9.179
172.26.9.181 leofs_module_nodename=S0@172.26.9.181
172.26.9.182 leofs_module_nodename=S0@172.26.9.182
172.26.9.183 leofs_module_nodename=S0@172.26.9.183
[leo_gateway]
172.26.9.180 leofs_module_nodename=G0@172.26.9.180
172.26.9.184 leofs_module_nodename=G0@172.26.9.184
[leofs_nodes:children]
leo_manager_0
leo_manager_1
leo_gateway
leo_storageFörbereder servrar
Inaktiverar Selinux. Jag hoppas att communityn kommer att skapa Selinux-policyer för 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
Installation netcat и redhat-lsb-core. netcat behövs för leofs-adm, redhat-lsb-core behövs för att fastställa OS-versionen .
- name: Install Packages
yum: name={{ item }} state=present
with_items:
- nmap-ncat
- redhat-lsb-coreSkapa användar-leofs och lägg till honom i hjulgruppen
- 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: yesInstallera 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
Den fullständiga versionen av den korrigerade Ansible-handboken finns här:
Installation, konfiguration, lansering
Sedan gör vi som det står skrivet i utan 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.ymlKontrollera klusterstatus på Primary LeoManager
leofs-adm statusPrimär och sekundär kan ses i ansible-playbook-loggarna
Slutsatsen blir ungefär så här
[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 | S0@172.26.9.179 | running | | a0314afb | a0314afb | 2019-12-05 10:33:47 +0000
S | S0@172.26.9.181 | running | | a0314afb | a0314afb | 2019-12-05 10:33:47 +0000
S | S0@172.26.9.182 | running | | a0314afb | a0314afb | 2019-12-05 10:33:47 +0000
S | S0@172.26.9.183 | attached | | | | 2019-12-05 10:33:58 +0000
G | G0@172.26.9.180 | running | | a0314afb | a0314afb | 2019-12-05 10:33:49 +0000
G | G0@172.26.9.184 | running | | a0314afb | a0314afb | 2019-12-05 10:33:49 +0000
-------+----------------------+--------------+---------+----------------+----------------+----------------------------Skapa en användare
Skapa användarlöften:
leofs-adm create-user leofs leofs
access-key-id: 9c2615f32e81e6a1caf5
secret-access-key: 8aaaa35c1ad78a2cbfa1a6cd49ba8aaeb3ba39ebLista över användare:
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 +0000Skapa en hink
Gjorde en hink
leofs-adm add-bucket leofs 9c2615f32e81e6a1caf5
OKBucketlist:
leofs-adm get-buckets
cluster id | bucket | owner | permissions | created at
-------------+----------+--------+------------------+---------------------------
leofs_1 | leofs | leofs | Me(full_control) | 2019-12-02 10:44:02 +0000Konfigurera s3cmd
Inom området HTTP Proxy server name ange IP-adressen för Gateway-servern
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'Om du får felet 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 DeniedSedan måste du ändra signature_v3 till True i s2cmd-konfigurationen. Detaljer i detta .
Om signature_v2 är Falskt, kommer följande fel att uppstå:
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=%2FBelastningstestning
Skapa en 1 GB-fil
fallocate -l 1GB 1gbLadda in den i Leofs
time s3cmd put 1gb s3://leofs/
real 0m19.099s
user 0m7.855s
sys 0m1.620sStatistik
leofs-adm du för 1 nod:
leofs-adm du S0@172.26.9.179
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: ____-__-__ __:__:__Vi ser att resultatet inte är särskilt informativt.
Låt oss se var den här filen finns.
leofs-adm var är leofs/1gb
leofs-adm whereis leofs/1gb
-------+----------------------+--------------------------------------+------------+--------------+----------------+----------------+----------------+----------------------------
del? | node | ring address | size | checksum | has children | total chunks | clock | when
-------+----------------------+--------------------------------------+------------+--------------+----------------+----------------+----------------+----------------------------
| S0@172.26.9.181 | 657a9f3a3db822a7f1f5050925b26270 | 976563K | a4634eea55 | true | 64 | 598f2aa976a4f | 2019-12-05 10:48:15 +0000
| S0@172.26.9.182 | 657a9f3a3db822a7f1f5050925b26270 | 976563K | a4634eea55 | true | 64 | 598f2aa976a4f | 2019-12-05 10:48:15 +0000Aktivera NFS
Vi aktiverar NFS på Leo Gateway 172.26.9.184-servern.
Installera nfs-utils på servern och klienten
sudo yum install nfs-utilsEnligt instruktionerna kommer vi att korrigera konfigurationsfilen /usr/local/leofs/current/leo_gateway/etc/leo_gateway.conf
protocol = nfsPå server 172.26.9.184, kör rpcbind och leofs-gateway
sudo service rpcbind start
sudo service leofs-gateway restartPå servern där leo_manager körs kommer vi att skapa en bucket för NFS och generera en nyckel för att ansluta till NFS.
leofs-adm add-bucket test 05236
leofs-adm gen-nfs-mnt-key test 05236 ip-адрес-nfs-клиентаAnsluter till 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/leofsVisa diskutrymme via NFS-klient
Diskutrymme med tanke på att varje lagringsnod har en 40 GB disk (3 noder som körs, 1 ansluten nod):
df -hP
Filesystem Size Used Avail Use% Mounted on
172.26.9.184:/test/05236/e7298032e78749149dd83a1e366afb328811c95b 60G 3.6G 57G 6% /mnt/leofsInstallerar LeoFS med 6 lagringsnoder.
Inventarielager (utan byggare):
# 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 leofs_module_nodename=S0@172.26.9.178
172.26.9.179 leofs_module_nodename=S0@172.26.9.179
172.26.9.181 leofs_module_nodename=S0@172.26.9.181
172.26.9.182 leofs_module_nodename=S0@172.26.9.182
172.26.9.183 leofs_module_nodename=S0@172.26.9.183
172.26.9.185 leofs_module_nodename=S0@172.26.9.185
[leo_gateway]
172.26.9.180 leofs_module_nodename=G0@172.26.9.180
172.26.9.184 leofs_module_nodename=G0@172.26.9.184
[leofs_nodes:children]
leo_manager_0
leo_manager_1
leo_gateway
leo_storageleofs-adm statusutdata
leofs-adm statusutdata
[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 | S0@172.26.9.178 | running | | d8ff465e | d8ff465e | 2019-12-06 05:18:29 +0000
S | S0@172.26.9.179 | running | | d8ff465e | d8ff465e | 2019-12-06 05:18:29 +0000
S | S0@172.26.9.181 | running | | d8ff465e | d8ff465e | 2019-12-06 05:18:30 +0000
S | S0@172.26.9.182 | running | | d8ff465e | d8ff465e | 2019-12-06 05:18:29 +0000
S | S0@172.26.9.183 | running | | d8ff465e | d8ff465e | 2019-12-06 05:18:29 +0000
S | S0@172.26.9.185 | running | | d8ff465e | d8ff465e | 2019-12-06 05:18:29 +0000
G | G0@172.26.9.180 | running | | d8ff465e | d8ff465e | 2019-12-06 05:18:31 +0000
G | G0@172.26.9.184 | running | | d8ff465e | d8ff465e | 2019-12-06 05:18:31 +0000
-------+----------------------+--------------+---------+----------------+----------------+----------------------------Diskutrymme med tanke på att varje lagringsnod har en 40 GB disk (6 noder som körs):
df -hP
Filesystem Size Used Avail Use% Mounted on
172.26.9.184:/test/05236/e7298032e78749149dd83a1e366afb328811c95b 120G 3.6G 117G 3% /mnt/leofsOm 5 lagringsnoder används
[leo_storage]
172.26.9.178 leofs_module_nodename=S0@172.26.9.178
172.26.9.179 leofs_module_nodename=S1@172.26.9.179
172.26.9.181 leofs_module_nodename=S2@172.26.9.181
172.26.9.182 leofs_module_nodename=S3@172.26.9.182
172.26.9.183 leofs_module_nodename=S4@172.26.9.183df -hP
172.26.9.184:/test/05236/e7298032e78749149dd83a1e366afb328811c95b 100G 3.0G 97G 3% /mnt/leofsLoggar
Loggar finns i kataloger /usr/local/leofs/current/*/log
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