记一次mysq(mariadb)l数据库恢复成功过程 recover参数，rsync数据同步，数据恢复失败后重新覆盖文件恢复

admin

[root@controller1 _data]# kolla-ansible -i multinode mariadb_recovery
Attempting to restart mariadb cluster : ansible-playbook -i multinode -e @/etc/kolla/globals.yml -e @/etc/kolla/passwords.yml -e CONFIG_DIR=/etc/kolla  -e action=deploy -e common_run=true /usr/share/kolla-ansible/ansible/mariadb_recovery.yml
/usr/lib/python2.7/site-packages/ansible/parsing/vault/__init__.py:44: CryptographyDeprecationWarning: Python 2 is no longer supported by the Python core team. Support for it is now deprecated in cryptography, and will be removed in the next release.
2 D; |2 y6 [! b+ W; [  f+ B- @  from cryptography.exceptions import InvalidSignature
1 Y) F  \; y5 {  z/ k[WARNING]: Unable to parse /var/lib/docker/volumes/mariadb/_data/multinode as an inventory source
[WARNING]: No inventory was parsed, only implicit localhost is available
[WARNING]: provided hosts list is empty, only localhost is available. Note that the implicit localhost does not match 'all'
[WARNING]: Could not match supplied host pattern, ignoring: mariadb
- j2 i5 `8 z0 b# {4 x# j" g4 D
2 ]0 ~, X% N0 F4 i) b4 T: D& XPLAY [Detect openstack_release variable] **************************************************************************************************************************
2 T  X2 X8 w! Jskipping: no hosts matched
/ M) |" }0 J' r) N. }+ s2 {6 zPLAY [Recover mariadb] ********************************************************************************************************************************************
skipping: no hosts matched
PLAY RECAP ********************************************************************************************************************************************************
5 I; Z2 t  ^+ S9 N& i/ @7 S# F[root@controller1 _data]# cd
[root@controller1 ~]# kolla-ansible -i multinode mariadb_recovery
7 s4 P: O& N. o. _3 DAttempting to restart mariadb cluster : ansible-playbook -i multinode -e @/etc/kolla/globals.yml -e @/etc/kolla/passwords.yml -e CONFIG_DIR=/etc/kolla  -e action=deploy -e common_run=true /usr/share/kolla-ansible/ansible/mariadb_recovery.yml
+ }( }' d, q; B/usr/lib/python2.7/site-packages/ansible/parsing/vault/__init__.py:44: CryptographyDeprecationWarning: Python 2 is no longer supported by the Python core team. Support for it is now deprecated in cryptography, and will be removed in the next release.
  from cryptography.exceptions import InvalidSignature
* g  ^5 r3 e. J, Q9 c" F. U9 [5 L[WARNING]: Invalid characters were found in group names but not replaced, use -vvvv to see details
% z2 D: a5 [: Z( ?% j[WARNING]: Found variable using reserved name: action
6 }: @/ m$ C+ v" R3 A5 H! I
. j( N' s* J' p: m  T# z9 w% fPLAY [Detect openstack_release variable] **************************************************************************************************************************
2 E" \( y' a% w5 dTASK [Get current kolla-ansible version number] *******************************************************************************************************************
% k2 [" h4 e6 d" bskipping: [controller1]
skipping: [controller2]
# U/ J& b% t4 Gskipping: [controller3]
: o  e+ Q) }1 k& VTASK [Set openstack_release variable] *****************************************************************************************************************************
5 D5 b. O/ x5 G  C, E, |skipping: [controller1]
) h$ I  L+ l/ t* q* N! }8 rskipping: [controller2]
skipping: [controller3]
: {, T1 j1 |: e: jPLAY [Recover mariadb] ********************************************************************************************************************************************
TASK [Gathering Facts] ********************************************************************************************************************************************
ok: [controller1]
" A$ P9 ~- x  M  D( i( o* G" t% rok: [controller3]
ok: [controller2]
TASK [common : include] *******************************************************************************************************************************************
' ^% e, n0 X8 N; T4 mskipping: [controller1]
skipping: [controller2]
" m2 P# Z. ]4 ?8 m- B& B4 p/ N: s( B: J: Dskipping: [controller3]
TASK [common : Registering common role has run] *******************************************************************************************************************
. D$ T5 k% a; L2 n  V! g4 nskipping: [controller1]
* x$ o& E6 |- n, oskipping: [controller2]
skipping: [controller3]
6 O- t: G3 q+ {# i8 Y0 W" CTASK [mariadb : include] ******************************************************************************************************************************************
included: /usr/share/kolla-ansible/ansible/roles/mariadb/tasks/deploy.yml for controller1, controller2, controller3
" y& [- A* p& ]$ x5 k, Z  a6 E# |) LTASK [mariadb : include] ******************************************************************************************************************************************
; a% \- c  O9 dincluded: /usr/share/kolla-ansible/ansible/roles/mariadb/tasks/config.yml for controller1, controller2, controller3
TASK [mariadb : Ensuring config directories exist] ****************************************************************************************************************
7 }' y) l9 x. q' [6 e" S% R% jok: [controller2] => (item={'value': {u'enabled': True, u'image': u'kolla/centos-binary-mariadb:queens', u'group': u'mariadb', u'volumes': [u'/etc/kolla//mariadb/:/var/lib/kolla/config_files/:ro', u'/etc/localtime:/etc/localtime:ro', u'mariadb:/var/lib/mysql', u'kolla_logs:/var/log/kolla/'], u'container_name': u'mariadb'}, 'key': u'mariadb'})
ok: [controller3] => (item={'value': {u'enabled': True, u'image': u'kolla/centos-binary-mariadb:queens', u'group': u'mariadb', u'volumes': [u'/etc/kolla//mariadb/:/var/lib/kolla/config_files/:ro', u'/etc/localtime:/etc/localtime:ro', u'mariadb:/var/lib/mysql', u'kolla_logs:/var/log/kolla/'], u'container_name': u'mariadb'}, 'key': u'mariadb'})
" R- b$ I4 C) s% t& @& P/ q6 Aok: [controller1] => (item={'value': {u'enabled': True, u'image': u'kolla/centos-binary-mariadb:queens', u'group': u'mariadb', u'volumes': [u'/etc/kolla//mariadb/:/var/lib/kolla/config_files/:ro', u'/etc/localtime:/etc/localtime:ro', u'mariadb:/var/lib/mysql', u'kolla_logs:/var/log/kolla/'], u'container_name': u'mariadb'}, 'key': u'mariadb'})
, M7 k" W, B8 ETASK [mariadb : Copying over config.json files for services] ******************************************************************************************************
2 v0 D) g/ l) dok: [controller2]
! P. Q/ }# n( z1 q) w. m: O& t2 fok: [controller3]
ok: [controller1]
# k! w2 X8 U0 Y" o6 |TASK [mariadb : Copying over galera.cnf] **************************************************************************************************************************
7 _/ T  r6 L6 p[WARNING]: _execute_module no longer honors the tmp parameter. Action plugins should set self._connection._shell.tmpdir to share the tmpdir
[WARNING]: _execute_module no longer honors the tmp parameter. Action plugins should set self._connection._shell.tmpdir to share the tmpdir
6 U- |/ g0 w# v$ ~4 m( Y9 L3 }[WARNING]: _execute_module no longer honors the tmp parameter. Action plugins should set self._connection._shell.tmpdir to share the tmpdir
ok: [controller3]
ok: [controller2]
ok: [controller1]
7 w# k: r+ o6 V1 z/ \$ S& cTASK [mariadb : Copying over wsrep-notify.sh] *********************************************************************************************************************
( E! _  v! K9 `3 b1 E' tok: [controller2] => (item={'value': {u'enabled': True, u'image': u'kolla/centos-binary-mariadb:queens', u'group': u'mariadb', u'volumes': [u'/etc/kolla//mariadb/:/var/lib/kolla/config_files/:ro', u'/etc/localtime:/etc/localtime:ro', u'mariadb:/var/lib/mysql', u'kolla_logs:/var/log/kolla/'], u'container_name': u'mariadb'}, 'key': u'mariadb'})
' X* [3 ~: j3 s; u5 e- T3 h4 ]ok: [controller1] => (item={'value': {u'enabled': True, u'image': u'kolla/centos-binary-mariadb:queens', u'group': u'mariadb', u'volumes': [u'/etc/kolla//mariadb/:/var/lib/kolla/config_files/:ro', u'/etc/localtime:/etc/localtime:ro', u'mariadb:/var/lib/mysql', u'kolla_logs:/var/log/kolla/'], u'container_name': u'mariadb'}, 'key': u'mariadb'})
ok: [controller3] => (item={'value': {u'enabled': True, u'image': u'kolla/centos-binary-mariadb:queens', u'group': u'mariadb', u'volumes': [u'/etc/kolla//mariadb/:/var/lib/kolla/config_files/:ro', u'/etc/localtime:/etc/localtime:ro', u'mariadb:/var/lib/mysql', u'kolla_logs:/var/log/kolla/'], u'container_name': u'mariadb'}, 'key': u'mariadb'})
0 T* t2 x" M' P# F, w4 C0 ~TASK [mariadb : Check mariadb containers] *************************************************************************************************************************
5 k6 B; F8 d& c$ V+ l6 echanged: [controller3] => (item={'value': {u'enabled': True, u'image': u'kolla/centos-binary-mariadb:queens', u'group': u'mariadb', u'volumes': [u'/etc/kolla//mariadb/:/var/lib/kolla/config_files/:ro', u'/etc/localtime:/etc/localtime:ro', u'mariadb:/var/lib/mysql', u'kolla_logs:/var/log/kolla/'], u'container_name': u'mariadb'}, 'key': u'mariadb'})
+ t9 z3 ^- U8 \, Bchanged: [controller1] => (item={'value': {u'enabled': True, u'image': u'kolla/centos-binary-mariadb:queens', u'group': u'mariadb', u'volumes': [u'/etc/kolla//mariadb/:/var/lib/kolla/config_files/:ro', u'/etc/localtime:/etc/localtime:ro', u'mariadb:/var/lib/mysql', u'kolla_logs:/var/log/kolla/'], u'container_name': u'mariadb'}, 'key': u'mariadb'})
; L* ~5 [, R  x' Lchanged: [controller2] => (item={'value': {u'enabled': True, u'image': u'kolla/centos-binary-mariadb:queens', u'group': u'mariadb', u'volumes': [u'/etc/kolla//mariadb/:/var/lib/kolla/config_files/:ro', u'/etc/localtime:/etc/localtime:ro', u'mariadb:/var/lib/mysql', u'kolla_logs:/var/log/kolla/'], u'container_name': u'mariadb'}, 'key': u'mariadb'})
- M+ N1 h4 O9 f8 p  YTASK [mariadb : include] ******************************************************************************************************************************************
included: /usr/share/kolla-ansible/ansible/roles/mariadb/tasks/bootstrap.yml for controller1, controller2, controller3
6 r% s! d6 E' RTASK [mariadb : set_fact] *****************************************************************************************************************************************
ok: [controller1]
* y% c7 O/ K8 B% o/ xok: [controller2]
/ w' z3 ~; G; t- a' I9 q+ |: c% ^ok: [controller3]
TASK [mariadb : include] ******************************************************************************************************************************************
, k+ e; x4 {9 P/ k2 d4 j* I" rincluded: /usr/share/kolla-ansible/ansible/roles/mariadb/tasks/lookup_cluster.yml for controller1, controller2, controller3
TASK [mariadb : Cleaning up temp file on localhost] ***************************************************************************************************************
ok: [controller1 -> localhost]
TASK [mariadb : Creating temp file on localhost] ******************************************************************************************************************
ok: [controller1 -> localhost]
2 e6 _+ v8 ]7 O8 ITASK [mariadb : Creating mariadb volume] **************************************************************************************************************************
" x& b. y7 C6 {! ?$ l* p* Jok: [controller1]
ok: [controller2]
: N% G  b7 o( R( ^. qok: [controller3]
  b- u7 e7 e3 W6 _TASK [mariadb : Writing hostname of host with existing cluster files to temp file] ********************************************************************************
[DEPRECATION WARNING]: Using tests as filters is deprecated. Instead of using `result|changed` use `result is changed`. This feature will be removed in version
+ q+ U: j9 J: L+ N/ {9 O# U2.9. Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg.
, d! S: F$ k- S( f: N[DEPRECATION WARNING]: Using tests as filters is deprecated. Instead of using `result|changed` use `result is changed`. This feature will be removed in version
2.9. Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg.
[DEPRECATION WARNING]: Using tests as filters is deprecated. Instead of using `result|changed` use `result is changed`. This feature will be removed in version
4 k: b" j9 k* G; w, D+ t- d7 M2.9. Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg.
ok: [controller1 -> localhost]
ok: [controller2 -> localhost]
/ B! u: e1 M2 _' Z& z) dok: [controller3 -> localhost]
TASK [mariadb : Registering host from temp file] ******************************************************************************************************************
ok: [controller1]
, B2 ^% }9 L  s( \$ Mok: [controller2]
% A% K8 a$ f3 qok: [controller3]
TASK [mariadb : Cleaning up temp file on localhost] ***************************************************************************************************************
ok: [controller1 -> localhost]
: x* q& |, N9 `2 OTASK [mariadb : include] ******************************************************************************************************************************************
skipping: [controller1]
# |0 P& _1 n( qskipping: [controller2]
- W* `7 t7 ~, |8 {skipping: [controller3]
: h5 j% j$ r0 ~* g; K! TTASK [mariadb : include] ******************************************************************************************************************************************
* Q: l  o! O4 `. Nincluded: /usr/share/kolla-ansible/ansible/roles/mariadb/tasks/recover_cluster.yml for controller1, controller2, controller3
; o3 B! T# k1 p/ Z' j& zTASK [mariadb : fail] *********************************************************************************************************************************************
5 H# L% j; g3 q) v, Jskipping: [controller1]
9 |9 Q+ |8 O' r* M7 zskipping: [controller2]
skipping: [controller3]
TASK [mariadb : Cleaning up temp file on mariadb hosts] ***********************************************************************************************************
0 \/ Y# f; h1 D5 g" nok: [controller2]
2 J1 J3 y2 I1 M' I2 `: h! ^ok: [controller1]
" A& K& q3 U; Q2 z% ]7 \ok: [controller3]
% I. e) y7 c4 u1 ATASK [mariadb : Cleaning up temp file on localhost] ***************************************************************************************************************
ok: [controller1 -> localhost]
TASK [mariadb : Stop MariaDB containers] **************************************************************************************************************************
ok: [controller2]
ok: [controller1]
9 P& N) J- u1 k/ w) T; Wok: [controller3]
TASK [mariadb : Run MariaDB wsrep recovery] ***********************************************************************************************************************
1 \, K% e8 v0 D; G, rchanged: [controller1]
6 o* U$ l7 B% o: w5 Cchanged: [controller2]
7 p! l  W2 G3 j  O3 @9 Y% p2 z+ b/ mchanged: [controller3]
TASK [mariadb : Copying MariaDB log file to /tmp] *****************************************************************************************************************
/ i4 y8 f6 _$ z0 U9 qchanged: [controller3]
changed: [controller2]
changed: [controller1]
TASK [mariadb : Get MariaDB wsrep recovery seqno] *****************************************************************************************************************
changed: [controller2]
' I# O6 y  ^' R* ]" Rchanged: [controller1]
+ Y- f8 @* f. D: mchanged: [controller3]
  y7 i7 E8 G# m$ s& |6 KTASK [mariadb : Removing MariaDB log file from /tmp] **************************************************************************************************************
( c6 C1 I' w% b/ w- _ok: [controller2]
4 \0 v5 S6 U: C& W1 R1 t# ~  ]- `: xok: [controller1]
% I, C" w. z3 }  s; `% bok: [controller3]
6 [+ D* q3 @  CTASK [mariadb : Registering MariaDB seqno variable] ***************************************************************************************************************
ok: [controller1]
ok: [controller2]
ok: [controller3]
TASK [mariadb : Comparing seqno value on all mariadb hosts] *******************************************************************************************************
, c8 X! Y, I: ?  f7 \) Rok: [controller2] => (item=controller1)
ok: [controller1] => (item=controller1)
% T- U1 D4 e3 H1 {* w# Ook: [controller3] => (item=controller1)
" c4 ~$ |. }  T! J  b* rok: [controller2] => (item=controller2)
ok: [controller3] => (item=controller2)
" [  G/ M* T( ^ok: [controller1] => (item=controller2)
! x% P0 }# t1 S$ ~* G& Dok: [controller2] => (item=controller3)
ok: [controller3] => (item=controller3)
" O% K. }7 x4 M; g% M6 R) ]. z$ ?/ Cok: [controller1] => (item=controller3)
TASK [mariadb : Writing hostname of host with the largest seqno to temp file] *************************************************************************************
skipping: [controller3]
6 `5 {4 H$ [: A5 fok: [controller1 -> localhost]
ok: [controller2 -> localhost]
TASK [mariadb : Registering mariadb_recover_inventory_name from temp file] ****************************************************************************************
* O3 R; ^! u# m! \# _+ l; ?ok: [controller1]
; {- Y5 C1 G% V& U) n" N+ Z/ Vok: [controller2]
ok: [controller3]
3 [% D  n7 [1 n' N# ^. t1 U: h$ d0 c/ wTASK [mariadb : set_fact] *****************************************************************************************************************************************
changed: [controller1]
9 }6 u! J' R# Bchanged: [controller2]
1 A* P3 R0 R! {& @+ a+ y' b) |changed: [controller3]
8 b7 [5 @  c- d2 yTASK [mariadb : Copying grastate.dat file from MariaDB container in bootstrap host] *******************************************************************************
skipping: [controller1]
skipping: [controller3]
ok: [controller2]
TASK [mariadb : Set grastate.dat file from MariaDB container in bootstrap host] ***********************************************************************************
skipping: [controller1]
skipping: [controller3]
changed: [controller2]
7 A$ J4 b: t: K( c* r' b- RTASK [mariadb : Copying grastate.dat file to mariadb container] ***************************************************************************************************
, v" i0 B! T& E+ l, i. f5 xskipping: [controller1]
3 G3 ]: B: j) I6 @skipping: [controller3]
( p0 B3 j2 f* a' {$ h2 Rok: [controller2]
. _* o0 e8 l# w/ j' u$ ^3 tTASK [mariadb : Starting first MariaDB container] *****************************************************************************************************************
) y' R3 U. J, Qskipping: [controller1]
9 c) v" y/ _4 J" _. s; j+ r- _, qskipping: [controller3]
- e, o: p! B  \  f; Z0 M6 Uchanged: [controller2]
& w$ s- m  p$ r  N. ^TASK [mariadb : Wait for first MariaDB container] *****************************************************************************************************************
  V! O0 {8 \0 B4 X; g' Askipping: [controller1]
/ [$ d. a: P% L' I% Bskipping: [controller3]
[DEPRECATION WARNING]: Using tests as filters is deprecated. Instead of using `result|success` use `result is success`. This feature will be removed in version
2.9. Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg.
FAILED - RETRYING: Wait for first MariaDB container (10 retries left).
% v% T4 W" @: e% j) wok: [controller2]
TASK [mariadb : Set first MariaDB container as primary] ***********************************************************************************************************
# ]( t% [' B- o! {$ ^3 q9 pskipping: [controller1]
skipping: [controller3]
9 C7 M7 ^) s7 Bchanged: [controller2]
# L! \% D* q# j4 @& B8 O! j. h; cTASK [mariadb : Wait for MariaDB to become operational] ***********************************************************************************************************
( p  I1 v- l8 X2 m8 v- \skipping: [controller1]
skipping: [controller3]
ok: [controller2]
- B# `: r3 a2 X4 \0 a3 E6 KTASK [mariadb : Restart slave MariaDB container] ******************************************************************************************************************
skipping: [controller2]
: _2 S2 B  v# `7 U  nchanged: [controller3]
- g; b. w* Q3 x) Hchanged: [controller1]
% O# W, s9 Z; Z: ^0 `/ ]: ETASK [mariadb : Wait for slave MariaDB] ***************************************************************************************************************************
5 q, @; @" I$ askipping: [controller2]
, m5 f# P9 z" @5 E' o9 z9 S+ s[DEPRECATION WARNING]: Using tests as filters is deprecated. Instead of using `result|success` use `result is success`. This feature will be removed in version
, f, S3 h- g# s1 w2.9. Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg.
; ?: p; q  O  p, m* {; f7 [FAILED - RETRYING: Wait for slave MariaDB (10 retries left).
% e  M: P$ b+ m7 ~0 w, d4 [[DEPRECATION WARNING]: Using tests as filters is deprecated. Instead of using `result|success` use `result is success`. This feature will be removed in version
2.9. Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg.
FAILED - RETRYING: Wait for slave MariaDB (10 retries left).
( A1 \! s$ A1 q) rok: [controller3]
* A2 q) L3 e% m0 jok: [controller1]
- o, G3 T  M/ Q( o/ P- d* ^" M' ?[WARNING]: flush_handlers task does not support when conditional
& N' K. s. B- l  o+ W% q
RUNNING HANDLER [mariadb : restart slave mariadb] *****************************************************************************************************************
skipping: [controller3]
skipping: [controller1]
2 \! i6 A" [& u9 x; v4 y" L' pskipping: [controller2]
RUNNING HANDLER [mariadb : restart master mariadb] ****************************************************************************************************************
skipping: [controller3]
skipping: [controller1]
skipping: [controller2]
9 o$ _' s+ C+ ~2 Z: QTASK [mariadb : include] ******************************************************************************************************************************************
4 v5 W" T6 R# X5 t  Sincluded: /usr/share/kolla-ansible/ansible/roles/mariadb/tasks/register.yml for controller1, controller2, controller3
TASK [mariadb : Creating haproxy mysql user] **********************************************************************************************************************
ok: [controller1]
TASK [mariadb : Cleaning up facts] ********************************************************************************************************************************
, c5 r3 f9 e! H# qok: [controller1]
- a1 k+ p- C- \ok: [controller2]
ok: [controller3]
TASK [mariadb : include] ******************************************************************************************************************************************
included: /usr/share/kolla-ansible/ansible/roles/mariadb/tasks/check.yml for controller1, controller2, controller3
5 ?' \; ~1 a4 f* WTASK [mariadb : Waiting for MariaDB service to be ready through VIP] **********************************************************************************************
9 Q7 A! J) e- d% H[DEPRECATION WARNING]: Using tests as filters is deprecated. Instead of using `result|success` use `result is success`. This feature will be removed in version
2.9. Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg.
ok: [controller1]
[DEPRECATION WARNING]: Using tests as filters is deprecated. Instead of using `result|success` use `result is success`. This feature will be removed in version
2.9. Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg.
[DEPRECATION WARNING]: Using tests as filters is deprecated. Instead of using `result|success` use `result is success`. This feature will be removed in version
2.9. Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg.
( ?, S7 q6 {, j2 R: ]ok: [controller2]
ok: [controller3]
PLAY RECAP ********************************************************************************************************************************************************
controller1                : ok=37   changed=6    unreachable=0    failed=0    skipped=15   rescued=0    ignored=0   
controller2                : ok=37   changed=8    unreachable=0    failed=0    skipped=10   rescued=0    ignored=0   
controller3                : ok=31   changed=6    unreachable=0    failed=0    skipped=16   rescued=0    ignored=0   
, |2 R; v( v3 [& Y7 p  J# v% z
& a7 R8 r. q; h3 S恢复正常。


9 W9 h7 X( o: k2 U有时候通过一些特殊手段可以帮助我们解决一些特别的问题，与其长时间尝试老方法，不如来点新的方式试试或许不一样的效果。

/ z) O' _9 Q% ]7 Y3 Q
我们首先是因为数据库恢复出问题，无法恢复数据，， 检查数据的库的值，
. l, ?9 O3 z' @1 M" [! E

cat /var/lib/docker/volumes/mariadb/_data/grastate.dat

中seqno值，若该值在所有节点中存在唯一得最大值
+ u- H- |' g3 G7 T7 }( ~% ]然后我们保留这个节点上数据，
删除其他节点上的数据文件
然后通过scp或者rsync同步保留节点的数据文件  （根据个人喜好同步文件，本人建议使用rsync）
然后再执行kolla-ansible数据库mariadb_recovery恢复命令：




/ v: ]) E$ ^8 \+ d4 o9 G& o差不多就可以完成数据库集群恢复了。
; T+ Z6 b7 B; G7 {