Confluence cluster setup || How to configure confluence cluster in ubuntu 20.04 || Confluence instal

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Confluence cluster setup || How to configure confluence cluster in ubuntu 20.04 || Confluence installation to cluster setup complete guide.

=====confluence installation setup======

install confluence performing all the steps on node1 with confugering its database in cluster mode.
Now install confluence of node2 copy connector also and copy home and installation directories from node1 for clustering.

While confugering Confluece cluster setup, confluence DB initially miss two database tables so we will manually add those 2 tables writtin below.
#table 1

CREATE TABLE `AO_ED669C_IDP_CONFIG` (
`ADDITIONAL_JIT_SCOPES` longtext COLLATE utf8mb4_bin,
`ADDITIONAL_SCOPES` longtext COLLATE utf8mb4_bin,
`AUTHORIZATION_ENDPOINT` varchar(255) COLLATE utf8mb4_bin DEFAULT NULL,
`BUTTON_TEXT` varchar(255) COLLATE utf8mb4_bin NOT NULL,
`CLIENT_ID` varchar(255) COLLATE utf8mb4_bin DEFAULT NULL,
`CLIENT_SECRET` varchar(255) COLLATE utf8mb4_bin DEFAULT NULL,
`ENABLED` tinyint(1) NOT NULL,
`ENABLE_REMEMBER_ME` tinyint(1) DEFAULT NULL,
`ID` bigint(20) NOT NULL,
`INCLUDE_CUSTOMER_LOGINS` tinyint(1) DEFAULT NULL,
`ISSUER` varchar(255) COLLATE utf8mb4_bin NOT NULL,
`LAST_UPDATED` datetime DEFAULT NULL,
`MAPPING_DISPLAYNAME` varchar(255) COLLATE utf8mb4_bin DEFAULT NULL,
`MAPPING_EMAIL` varchar(255) COLLATE utf8mb4_bin DEFAULT NULL,
`MAPPING_GROUPS` varchar(255) COLLATE utf8mb4_bin DEFAULT NULL,
`NAME` varchar(255) COLLATE utf8mb4_bin NOT NULL,
`SAML_IDP_TYPE` varchar(255) COLLATE utf8mb4_bin DEFAULT NULL,
`SIGNING_CERT` longtext COLLATE utf8mb4_bin,
`SSO_TYPE` varchar(255) COLLATE utf8mb4_bin DEFAULT NULL,
`SSO_URL` varchar(255) COLLATE utf8mb4_bin DEFAULT NULL,
`TOKEN_ENDPOINT` varchar(255) COLLATE utf8mb4_bin DEFAULT NULL,
`USERNAME_ATTRIBUTE` varchar(255) COLLATE utf8mb4_bin DEFAULT NULL,
`USERNAME_CLAIM` varchar(255) COLLATE utf8mb4_bin DEFAULT NULL,
`USER_INFO_ENDPOINT` varchar(255) COLLATE utf8mb4_bin DEFAULT NULL,
`USER_PROVISIONING_ENABLED` tinyint(1) DEFAULT NULL,
`USE_DISCOVERY` tinyint(1) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin;

#table 2

CREATE TABLE `AO_ED669C_SEEN_ASSERTIONS` (
`ASSERTION_ID` varchar(255) NOT NULL,
`EXPIRY_TIMESTAMP` bigint DEFAULT 0 NOT NULL,
`ID` int NOT NULL,
PRIMARY KEY (`ID`)
);

now start confluence on node 1 first and then on node 2.