EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM...

33
!720 1

Transcript of EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM...

Page 1: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

7 2 0 1

����������� ��

������������� �

Page 2: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

F - EA C C A A B ., - A A5C A CB A B AD

5

., 4 BC A B 4 5C8 A

., 4 BC A B ���1 ��

4 22 � ., 05 D A 35 5 A� 03 ( �� ��������

) ., 4 BC A B 05 D A 35 5 A 03 ��

Page 3: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

�� ������������

Page 4: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

4 0. 2 4 0 4 0 2 11 0. 8 ,

EDB POSTGRES PLATFORM

Page 5: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

Q -H CABL / L CK ., -H H LCH ( * EE CABLK K)

/., 5HKLA K 5E L H F^ $;6: �;'� ������ �����

��5�6!�1�������&;!-; TL� %1 &;!�>H

• /., 5HKLA K . L L K 0. 1 HH 8 H AH 8 D YI

• /., 5HKLA K EC LCH 8 NR., 8\7,5�;�49 8

• /., 5HKLA K -H LH KF� [= ��SA �9'8;6:55;

������ �����

]@�7��;:&;!-; ��&;!�� %/"#��QU

• /., 5HKLA K CA LCH KK KKF L �;* ���G?

• /., 5HKLA K CA LCH HHE 2CL NR., 8�� � %/"#��QU

��� ������

TL�PX�"3;(9��]CME�)#��#,�&�� !;:5�)5��0#�49�5%��6�� %1�DW�TL$;6

• /., 5HKLA K / L CK A VJ /5 8 5HKLA 8 <BO�ZMTL

• /., 5HKLA K 0 CEH A /5 8 5HKLA 8 1• /., 5HKLA K , DM H P /5 8 5HKLA 8 .5�;:-; )#��#,�+8#�:7-6:�9�529!6:)#��#,

Page 6: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

0. 2 06 0 2 11 0. 6 6 8 ,

EDB POSTGRES PLATFORMPgpool-ll

EDB Postgres Replication Server EDB Postgres failover Manager

Page 7: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

EDB Postgres������HA����

Page 8: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

© Copyright EnterpriseDB Corporation, 2018. All rights reserved.8

����� #$�"�#�6.0=���NI[Y

• ����48*���/��

% Pgpool-II 6;= Master – Slave �

& EFM 6;= Master – Slave �

' Pgpool-II & EFM 6;= Master – Slave �

( EDB Replication Server 6;= Active –Active �

) @TFIZHOJ6;= Active – Passive �

• ���8*!�! ����:DQ[J+�2*DQ[J1>=��8��7�<+

% X[KZMTYEYA

& CL@ESYZP[UYA

' Pgpool-II��7� 7397� *WatchdogPXGF5Master-SlaveR[K

\pgpool-II7,WPUB[ESY��-5,NTWVZ@?U��-8DQ[J���

Page 9: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

© Copyright EnterpriseDB Corporation, 2018. All rights reserved.9

9=6?/:6��~w��V/ Pgpool-II bfh Master – Slave ��

watchdog

pgpool-II

EPAS

watchdog

pgpool-II

EPAS

$,

$,

$,

tz����o����p�s��

��IP ��IP

G/W

$,

xmyn

• JFJJIIH2TdW=KIPQr�}`\^&�Xn�kj�z�j��p�s��dW JFJJIIH2TZ�tw87b��]h��;=0@;=1b�\�(X

• OAMBGCIFbfh JFJJIIH2Tc�!$,

− n�tw�v�zlmj0JFJIIH:6'1Z�+

− ��ut��cxmyn_da[Wr��t��c��ixmyn 08DEANHM5/RLDHDBM/4S1

• OAMBGCIF/ �-c%�$,`���

− JFJIIH2Tc&�"

− 9=6?3=ILMFKD?><c&�"

• �tw87Ut���87dWtz����o����p�s��i�#X

• �tw87c.��dWt���87e*�g�Y0�@;=c�Y1

• q|ns�������o`��{}��s�oZ�)�tw� t���

Client Apps

xmyn

Page 10: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

© Copyright EnterpriseDB Corporation, 2018. All rights reserved.10

&+#,�(#��\Wge:/ EFM CGI Master – Slave ��

Read Replicas

Master Read Replicas

EFM AgentEFM Agent

Client Apps

_UWg Udg]

Read Replicas

EFM Agent

EFM Agent

Udg]

Udg]

��IP

• NgTMeZ B;ObLKeZfK^cQgSaeE;&'*>_UW%$C��@I��)+�-)+�C�?AKOVU�%$C�@I��KOVU�

• %$Rg[�B#1047>��<

_UWfRg["�����*/6705�#1047

Udg]fRg["��,3/80�#1047

• hD%$���*/6705�! ,3/80�!�D�E;.274066�#1047CGH;U^cYZf]dLeJ��

• _UW%$9Udg]%$E;UZcg`ePfd^cQgSaeJ��<

• _UW%$D���E;Udg]%$F���H�=��-)+D��=�

G/W

XMYO

XMYO

XMYO

XMYO

Streaming R

eplication

Page 11: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

© Copyright EnterpriseDB Corporation, 2018. All rights reserved.11

���������A<MK"/ Pgpool-II & EFM *./ Master – Slave ��

11

Master

Read Replicas

Read Replicas

Streaming Replication

EFM Agent

Pgpool-ll

DATA CENTER 1

DATA CENTER 2

EFM Agent

EFM Agent

Writes Reads

Client Apps

D:<M

:IMB

:IMB

• ��! �� ���) ����1�-�0'(��

• ��! �� ���,#7?49EKLCMGK5)JM>L@FK8M��1��

• ���,#��8M@+����1��

• :6MHL23=)��;K9EK1� &/��%$/*�

Page 12: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

© Copyright EnterpriseDB Corporation, 2018. All rights reserved.12

��������1+=;�/ Replication Server �!" Active –Active ��

Master

Client Apps

Replication Server

Master Master

IP IP IP

:38&=(6;

• ������������� �����������'=0�!"�-=29<:49�59,<5)+=<:38&=(6;�

• %7$#;.<#38&=(6; ��������'=0��#/:)�#%*)�

Page 13: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

© Copyright EnterpriseDB Corporation, 2018. All rights reserved.13

��������+'20�/ #-%'1&,)��� Active – Passive �

• (2'���(�%#����

• � ��#-%'.0$&,)�����������,! /1"2*2

• Service Guard• Red Hat Cluster• Veritas Cluster• LinuxHA• Cluster Pro• LifeKeeper

Page 14: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

© Copyright EnterpriseDB Corporation, 2018. All rights reserved.14

HA[uac%�M'6

����� �� �*2�

rac}j}g8� racDBMeUa[8�

^i[`t{|p}v{\ a]}w|TVf�" 7 e}c|ya�1�

;Master-Slave

• Pgpool-ll $, 7+Promote 7

9�#xpv]}`t{CQ

�#xpv]}`t{KF

DB8�$,�ASla�~L�" @

@(*3)

<• EDB Postgres Failover Manager

X(*4)

=• Pgpool-ll (*1)• EDB Postgres Failover

Manager@

@(*3)

>Active-Active • EDB Postgres Replication

Server$, 7 CQ DB8�$,�A�

_}kI/0 @@

(*5)

?

Active-Passive

•[uac}|bnfVWT (*2) $, 7+FSrV{f 7+EDB Postgres 5 7

KF seUT|vZkv+EDB Postgres 5+nXz}g|vZkv

@ X

NA^i[`t{|p}v{\&1Jy}gku{`{\&1S��B

2-)3OA) B 1 -S�*B

3 5C �*LPR�(.Ma]}wTVfS�)B S�I�*GR� A3�ax}o*(%�S_q}fFHDRMIA)14Yny}g+K�*N�1B Tpv]}`t{|l}dU`th{\�1K� NA!�.Ma]}w|TVfE�1B�FA) M��E�4B

•_}ma/01�NAMaster-Slave�M�E:D

Page 15: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

-- � - ) ( - )

Page 16: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

© Copyright EnterpriseDB Corporation, 2018. All rights reserved.16

• Proxy,A4��#�VIP$���

• *;&%?3@%7<+A-:?!�pgpool-ll���EPAS/PostgreSQL���

• 2A/9A. ��"2A/9A. 8=.@0'1*/�� ����5'&=@(A4

• 5'&=@(A4� (?;&?@<)4<��$��

⇒2A/9A. .7<13@6>&?�� �!���

Pgpool-ll

Page 17: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

© Copyright EnterpriseDB Corporation, 2018. All rights reserved.17

• 7]@6[G� + Witness/12-F]CN]A0Split-Brain0+�• VIP4��• F]CN]A0MXA\D6E: &9ACQ\SHCW[;�#• OAC,��$�K65X\8]J.:VAC���• AGW]P[;\YLW<]?U[���0D6E:• &�Slave=]J0���4�"/��#• DB=]J*IEGZ]:(AGW]P[;\YLW<]?U[!)0MXAD6E:• A5ED\8]J/A5ED\JE:�#• FencingA:WLG/13 )WB]A0��• :VAC�����0R]XT]>� �%• :VAC�����0R]X(��#• OAC]DB,��0=]J�'�/13-Split-Brain0+�

EDB Postgres Failover Manager

Page 18: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

© Copyright EnterpriseDB Corporation, 2018. All rights reserved.1818

2 >FWj,�

Pgpool-ll EFM � -

VIP%.�� 9 9

DB[dMPDQG&/XDCdiEjW 9 9 EFM: recovery.conf/)�=@ASplit-Brain>8&

MCQPiEjWj/MCQPiWQG 9 9 EFM: �#'�>PDQG;recovery.conf/)�=@A�!:+�<MCQPiEjW

3 MejYDB�� 9 9

fjTiWbhLhH%. 9 k

IVGLahiZjchH%. 9 k

RjO\jM>Split-Brain>8& k 9 EFM: Agent�+Witness

FMO]i_UOchH%. k 9 EFM: 4�>[dMPDQGB�1�.

3 SlaveJjW>���>*<�� k 9

DBJjW7VQSgjG>[dPDQG k 9

FencingMGcZS=@A�6cNjM�� k 9

GbMO$��">`jK�(�0 k 9

GbMO$��">^jd5� k 9

EhbChicFWc%. 9 k EFM: BART=@AEhbChicFWcB��

Pgpool-ll>�?

EFM>�?

Page 19: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

© Copyright EnterpriseDB Corporation, 2018. All rights reserved.19

H>RP��*��

?3CL@7)<9ROQ24B(Read)!��

2JN9R;MP�'*�:D7;MPQJRNP8!��S��)=@;MP1��".��!�.)

pgpool-ll+“��”⇒H>RP� or H>RP�

pgpool-ll 1 �%HA��*E4F4!�. pgpool-ll 1� [ H>RP� ]

EFM1� [ H>RP� ]$/��

Pgpool-ll + EFM �,�0#

[ H>RP� ]

AR>KR<*I53OQ6RGR1�pgpool-ll or EFM(&-'��

DB��

:D7;MPQJRNP8

<9ROQ24B

H>RP�TH>RP�'��.

Page 20: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

© Copyright EnterpriseDB Corporation, 2018. All rights reserved.20

• Pgpool-II/B>EDB Failover Manager =*select�<�#�8*T`QY`O<���FRHSK+(*) EFM8=*JOQZ_[VQ]^L8*���F�%!�"

• NIC(�ADisk(�<��?8=#E::-7@*T`QY`O<���RHSK0I\`9:D?8;*QGZ\L0��5DM`O0,D+

• EFM agent <��RHSKF#.398*���F�;)@D39081D+(*) EFM�";BDDBA&�;BC �=�"+

3rd party K\OQ_PXU<�$�

3rd Party K\OQ_PXUF��5D398*(���<��F�2*N`WO���'F �46D0�"+

Page 21: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

�����������

21

Page 22: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

© Copyright EnterpriseDB Corporation, 2018. All rights reserved.22

• 1FSE. �.1�*6��− CSARP?.���7� ��W !��OJN<S>MQ

− UDB(K?A+!��?OSI1�)+Witness [HASQ" ]− Witness Agent/&8JN<S>MQR=SG&4)'/&GB:8BJR=SG�,��

− CSARP?R@P.��W ��OJN<S>MQ− VDB(K?A+��?OSIT�+!��?OSI1�) [HASQ# ]− Witness Agent/��

• UFSE. �0,�*6�� [HASQ$ / HASQ% ]− DB=SG�7T�-5*− !��.��&U�� ��.?JNBDRIO9Q7�(+3&Witness Agent 7�1�2

?DNSLQ;ROJN<S>MQ��.��

Page 23: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

© Copyright EnterpriseDB Corporation, 2018. All rights reserved.23

24<@:>.?=8</@1;>��53@>�

Master Read Replicas

EFM Agent

EPAS

Witness Agent

�IP

EPAS

923

EFM Agent

Witness

2=@7

Master Read Replicas

EFM Agent

EPAS

Witness Agent

EPAS

�923

EFM Agent

Witness

923DBCD

B

�����=8</@1;>

�IP

• ADB(923+���2=@71�)+Witness

ADB��$(Witness��

• 923DB����Slave EFM'*+��(promote)"� 923@%"#0@62-��

• � ��)��!,#&����+

Page 24: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

© Copyright EnterpriseDB Corporation, 2018. All rights reserved.24

• 5DB(+#$+��#/3)4�+���#/3)1�)

24

#&.3,1�2/*. 3"-1 �'$31�

Read Replicas

Master Read Replicas

EFM Agent

EPAS

EPAS

��/*. 3"-1

���/*. 3"-1

��IP

EPAS

+#$3

EFM Agent

EFM Agent

#/3)

#/3)

867D

B

��

24

Read Replicas

Master Read Replicas

EFM Agent

EPAS

EPAS

EPAS

+#$3

EFM Agent

EFM Agent

#/3)

�+#$3��IP

• +#$DB����Slave�EFM����(promote)��%3$20#�����+#$3���!3(#����

��/*. 3"-1

Page 25: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

© Copyright EnterpriseDB Corporation, 2018. All rights reserved.25

• 3DB(B89+���8GJ@2�)+Witness(3A7DH)

25

8;EJCH4IGAE5J7DH��=9JH�

Read Replicas

Master Read Replicas

EFM Agent

EPAS

EPAS

Witness Agent

���GAE5J7DH

���GAE5J7DH

�IP

EPAS

B89J

EFM Agent

EFM Agent

Witness

8GJ@

8GJ@

Read Replicas

Master Read Replicas

EFM Agent

EPAS

EPAS

Witness Agent

���GAE5J7DH

EPAS

�B89J

EFM Agent

EFM Agent

Witness

8GJ@

B89J�IP

MKLD

B

��

• B89DB����Slave!EFM(-.��(promote)#� B89J&#$6J>80����#�� ��+��"/$' ���.

• Witness!�/*� B89J)���,8AE:;I@G1H'#%�?21FI3J<��

Page 26: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

© Copyright EnterpriseDB Corporation, 2018. All rights reserved.26

• 4DB(<12+��1AE:F�+���1AE:2�)

15?E=C-DA;?.E0>C�72EC�

Read Replicas

Master Read Replicas

EFM Agent

EPAS

EPAS

��A;?.E0>C

���A;?.E0>C

��IP

EPAS

<12E

EFM Agent

EFM Agent

1AE:

1AE:

JHID

B

��

Read Replicas

Master Read Replicas

EFM Agent

EPAS

EPAS

EPAS

�<12E

EFM Agent

EFM Agent

1AE:

<12E��IP

• <12DB����Slave�EFM#&'��(promote)��4E2DB1"� �<12E!��/E81)���

• G��$���1AE:)���(�! �<12E$�� %1;?35D:A*C"� �9+*@D,E6��

��A;?.E0>C

Read Replicas

EPAS

EFM Agent

1AE:

���A;?.E0>C

Read Replicas

EPAS

EFM Agent

1AE:

���A;?.E0>C

Page 27: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

) ( ( )( ��

27

Page 28: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

© Copyright EnterpriseDB Corporation, 2018. All rights reserved.28

EFM�������

# � efm01 efm02 efm03 � �

1

OS"5(*72 & NIC��� � �

• Java � SMTP��• NIC Bonding

2

EDB Postgres Advance Server "5(*72� � �

3

(*7.5#63,1$7'05����

(Master)

�(Slave)

�(Slave)

• 3,1$7'056/7&���• postgresql.conf / pg_hba.conf��• pg_basebackup ���• recover.conf��

4

EDB Failover Manager"5(*72� � �

• yum%-5+� !"5(*72

5

EFM �� & ��� � �

• efm.properties��• efm.nodes��• ,4)(���/����systemctl or service

Page 29: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

© Copyright EnterpriseDB Corporation, 2018. All rights reserved.29

[email protected]=enterprisedbdb.password.encrypted=********************************************db.port=5444db.database=edbdb.service.owner=enterprisedbdb.service.name=edb-as-10db.bin=/opt/edb/as10/bindb.recovery.conf.dir=/opt/edb/as10/datajdbc.sslmode=disableuser.email=katsuji.takatsuru@enterprisedb.comvirtualIp=192.168.0.160virtualIp.interface=ens32virtualIp.prefix=24admin.port=7802pingServerIp=192.168.0.1pingServerCommand=/bin/ping -q -c3 -w5is.witness=falsescript.notification=local.period=10local.timeout=60local.timeout.final=10remote.timeout=10node.timeout=50bind.address=192.168.0.161:7801stop.isolated.master=true

auto.allow.hosts=truedb.reuse.connection.count=0auto.failover=trueauto.reconfigure=truepromotable=trueminimum.standbys=0recovery.check.period=2auto.resume.period=10script.fence=script.post.promotion=script.resumed=script.db.failure=script.master.isolated=script.remote.pre.promotion=script.remote.post.promotion=script.custom.monitor=custom.monitor.interval=custom.monitor.timeout=custom.monitor.safe.mode=sudo.command=sudosudo.user.command=sudo -u %ulog.dir=/var/log/efm-3.0jgroups.loglevel=FINERefm.loglevel=FINERjvm.options=-Xmx32m

Page 30: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

© Copyright EnterpriseDB Corporation, 2018. All rights reserved.30

efm.nodes

# List of node address:port combinations separated by whitespace.192.168.0.162:7801 192.168.0.163:7801

efm.nodes@edbefm01

# List of node address:port combinations separated by whitespace.192.168.0.161:7801 192.168.0.163:7801

efm.nodes@edbefm02

# List of node address:port combinations separated by whitespace.192.168.0.161:7801 192.168.0.162:7801

efm.nodes@edbefm03

Page 31: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

© Copyright EnterpriseDB Corporation, 2018. All rights reserved.31

efm ������������[�� ���]

[root@edbefm01 ~]# /usr/edb/efm-3.0/bin/efm cluster-status efm

[����]

Cluster Status: efmVIP: 192.168.100.160

Agent Type Address Agent DB Info--------------------------------------------------------------Master 192.168.0.161 UP UPStandby 192.168.0.162 UP UPStandby 192.168.0.163 UP UP

Allowed node host list:192.168.0.161 192.168.0.162 192.168.0.163

Membership coordinator: 192.168.0.161

Standby priority host list:192.168.0.162 192.168.0.163

Promote Status:

DB Type Address XLog Loc Info--------------------------------------------------------------Master 192.168.0.161 0/B0000D0Standby 192.168.0.162 0/B0000D0Standby 192.168.0.163 0/B0000D0

Standby database(s) in sync with master. It is safe to promote..

Page 32: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

8 3 2 2 8 8 0 8 3 2 2 21

u .8 3 2 ,0 8 2 -0 032 ��� -0 2 0 2 ��

u�������������� ����������������� ���

���

Page 33: EDBジャパン | EDB Japan Blog · 2019-07-18 · 0. 2 06 0 2 11 0.6 6 8 , EDB POSTGRES PLATFORM Pgpool-ll EDB Postgres Replication Server EDB Postgres failover Manager

3 0. 2 0 3 3 032 11 0. 8 ,