ProHoster > Blogs > Administrācija > Izkliedētas defektu tolerantas LeoFS objektu krātuves instalēšana, saderīga ar klientiem, kas izmanto S3, NFS
Izkliedētas defektu tolerantas LeoFS objektu krātuves instalēšana, saderīga ar klientiem, kas izmanto S3, NFS
Saskaņā ar Opennet: LeoFS — sadalīta defektiem izturīga objektu krātuve LeoFS, saderīgs ar klientiem, kas izmanto Amazon S3 API un REST-API, kā arī atbalsta NFS servera režīmu. Ir optimizācijas gan mazu, gan ļoti lielu objektu glabāšanai, ir iebūvēts kešatmiņas mehānisms, kā arī iespējama uzglabāšanas replikācija starp datu centriem. Projekta mērķi ietver 99.9999999% uzticamības sasniegšanu, izmantojot dublikātu dublēšanu un novēršot vienu atteices punktu. Projekta kods ir rakstīts erlang valodā.
LeoFS sastāv no trim sastāvdaļām:
LeoFS krātuve — apkalpo objektu un metadatu pievienošanas, izgūšanas un dzēšanas operācijas, atbild par klienta pieprasījumu replikācijas, atkopšanas un rindas izpildi.
LeoFS vārteja — apkalpo HTTP pieprasījumus un novirza atbildes uz klientiem, izmantojot REST-API vai S3-API, nodrošina visvairāk nepieciešamo datu saglabāšanu atmiņā un diskā.
LeoFS vadītājs — uzrauga LeoFS Gateway un LeoFS Storage mezglu darbību, uzrauga mezglu statusu un pārbauda kontrolsummas. Garantē datu integritāti un augstu krātuves pieejamību.
Šajā ziņojumā mēs instalēsim Leofs, izmantojot ansible-playbook un testēsim S3, NFS.
Ja mēģināt instalēt LeoFS, izmantojot oficiālās rokasgrāmatas, jūs saskarsities ar dažādām kļūdām: 1,2. Šajā ierakstā es uzrakstīšu, kas jādara, lai izvairītos no šīm kļūdām.
Vietā, kur darbināsit ansible-playbook, jums ir jāinstalē Netcat.
Inventāra piemērs
Inventāra piemērs (repozitorijā hosts.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_storage
Servera sagatavošana
Selinux atspējošana. Es ceru, ka kopiena izveidos Selinux politikas 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
Uzstādīšana netcat и redhat-lsb-core. netcat nepieciešams priekš leofs-adm, redhat-lsb-core nepieciešams, lai noteiktu OS versiju šeit.
Primāro un sekundāro var redzēt ansible-playbook žurnālos
Izvade būs kaut kas līdzīgs šim
[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
-------+----------------------+--------------+---------+----------------+----------------+----------------------------
leofs-adm add-bucket leofs 9c2615f32e81e6a1caf5
OK
Segu saraksts:
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
S3cmd konfigurēšana
Šajā jomā HTTP Proxy server name norādiet vārtejas servera IP
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'
Ja tiek parādīta kļūda KĻŪDA: S3 kļūda: 403 (Piekļuve liegta): Piekļuve liegta:
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
Pēc tam s3cmd konfigurācijā ir jāmaina signature_v2 uz True. Sīkāka informācija šajā izdot.
Ja signature_v2 ir False, tiks parādīta šāda kļūda:
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
Slodzes pārbaude
Izveidojiet 1 GB failu
fallocate -l 1GB 1gb
Augšupielādējiet to vietnē Leofs
time s3cmd put 1gb s3://leofs/
real 0m19.099s
user 0m7.855s
sys 0m1.620s
Statistika
leofs-adm du 1 mezglam:
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: ____-__-__ __:__:__
Redzam, ka secinājums nav īpaši informatīvs.
Apskatīsim, kur atrodas šis fails.
leofs-adm whereis leofs/1gb
Mēs aktivizējam NFS Leo Gateway 172.26.9.184 serverī.
Instalējiet nfs-utils serverī un klientā
sudo yum install nfs-utils
Saskaņā ar instrukcijām mēs labosim konfigurācijas failu /usr/local/leofs/current/leo_gateway/etc/leo_gateway.conf
protocol = nfs
Serverī 172.26.9.184 palaidiet rpcbind un leofs-gateway
sudo service rpcbind start
sudo service leofs-gateway restart
Serverī, kurā darbojas leo_manager, izveidojiet NFS segmentu un ģenerējiet atslēgu savienojuma izveidei ar NFS
leofs-adm add-bucket test 05236
leofs-adm gen-nfs-mnt-key test 05236 ip-адрес-nfs-клиента
Savienojuma izveide ar 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
Skatiet vietu diskā, izmantojot NFS klientu
Diska vieta, ņemot vērā, ka katram krātuves mezglam ir 40 GB disks (3 darbojas mezgli, 1 pievienots mezgls):
df -hP
Filesystem Size Used Avail Use% Mounted on
172.26.9.184:/test/05236/e7298032e78749149dd83a1e366afb328811c95b 60G 3.6G 57G 6% /mnt/leofs
LeoFS uzstādīšana ar 6 uzglabāšanas mezgliem.
Inventārs (bez celtnieka):
# 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
Izvades leofs-adm statuss
Izvades leofs-adm statuss
[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
-------+----------------------+--------------+---------+----------------+----------------+----------------------------
Diska vieta, ņemot vērā, ka katram krātuves mezglam ir 40 GB disks (6 darbojas mezgli):
df -hP
Filesystem Size Used Avail Use% Mounted on
172.26.9.184:/test/05236/e7298032e78749149dd83a1e366afb328811c95b 120G 3.6G 117G 3% /mnt/leofs