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Oct 24, 2025
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fix formatting issues #20777

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2 changes: 1 addition & 1 deletion src/current/molt/migrate-load-replicate.md
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Expand Up @@ -239,7 +239,7 @@ MOLT Fetch captures a consistent point-in-time checkpoint at the start of the da

~~~
DEBUG [Aug 25 15:29:38] upserted rows conflicts=0 duration=1.801ms proposed=1 target="\"molt\".\"public\".\"tbl1\"" upserted=1
<!-- DEBUG [Aug 25 15:29:38] progressed to consistent point: 77263736-7899-11f0-81a5-0242ac120002:1-39 -->
DEBUG [Aug 25 15:29:38] progressed to consistent point: 77263736-7899-11f0-81a5-0242ac120002:1-39
~~~
</section>

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6 changes: 6 additions & 0 deletions src/current/molt/molt-fetch.md
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Expand Up @@ -984,6 +984,12 @@ To verify that your connections and configuration work properly, run MOLT Fetch

## Troubleshooting

<div class="filters filters-big clearfix">
<button class="filter-button" data-scope="postgres">PostgreSQL</button>
<button class="filter-button" data-scope="mysql">MySQL</button>
<button class="filter-button" data-scope="oracle">Oracle</button>
</div>

{% include molt/molt-troubleshooting-fetch.md %}

## See also
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24 changes: 15 additions & 9 deletions src/current/molt/molt-replicator.md
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Expand Up @@ -42,13 +42,13 @@ The source database must be configured for replication:

The SQL user running MOLT Replicator requires specific privileges on both the source and target databases:

| Database | Required Privileges | Details |
|------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| PostgreSQL source | <ul><li>`SUPERUSER` role (recommended), or the following granular permissions:</li><li>`CREATE` and `SELECT` on database and tables to replicate.</li><li>Table ownership for adding tables to publications.</li><li>`LOGIN` and `REPLICATION` privileges to create replication slots and access replication data.</li></ul> | [Create PostgreSQL migration user]({% link molt/migrate-load-replicate.md %}#create-migration-user-on-source-database) |
| MySQL source | <ul><li>`SELECT` on tables to replicate.</li><li>`REPLICATION SLAVE` and `REPLICATION CLIENT` privileges for binlog access.</li><li>For `--fetchMetadata`, either `SELECT` on the source database or `PROCESS` globally.</li></ul> | [Create MySQL migration user]({% link molt/migrate-load-replicate.md %}?filters=mysql#create-migration-user-on-source-database) |
| Oracle source | <ul><li>`SELECT`, `INSERT`, `UPDATE` on `_replicator_sentinel` table.</li><li>`SELECT` on `V$` views (`V$LOG`, `V$LOGFILE`, `V$LOGMNR_CONTENTS`, `V$ARCHIVED_LOG`, `V$LOG_HISTORY`).</li><li>`SELECT` on `SYS.V$LOGMNR_*` views (`SYS.V$LOGMNR_DICTIONARY`, `SYS.V$LOGMNR_LOGS`, `SYS.V$LOGMNR_PARAMETERS`, `SYS.V$LOGMNR_SESSION`).</li><li>`LOGMINING` privilege.</li><li>`EXECUTE` on `DBMS_LOGMNR`.</li><li>For Oracle Multitenant, the user must be a common user (prefixed with `C##`) with privileges granted on both CDB and PDB.</li></ul> | [Create Oracle migration user]({% link molt/migrate-load-replicate.md %}?filters=oracle#create-migration-user-on-source-database)<br>[Create sentinel table]({% link molt/migrate-load-replicate.md %}#create-source-sentinel-table)<br>[Grant LogMiner privileges]({% link molt/migrate-load-replicate.md %}#grant-logminer-privileges) |
| CockroachDB target (forward replication) | <ul><li>`ALL` on target database.</li><li>`CREATE` on schema.</li><li>`SELECT`, `INSERT`, `UPDATE`, `DELETE` on target tables.</li><li>`CREATEDB` privilege for creating staging schema.</li></ul> | [Create CockroachDB user]({% link molt/migrate-load-replicate.md %}#create-the-sql-user) |
| PostgreSQL, MySQL, or Oracle target (failback) | <ul><li>`SELECT`, `INSERT`, `UPDATE` on tables to fail back to.</li><li>For Oracle, `FLASHBACK` is also required.</li></ul> | [Grant PostgreSQL user permissions]({% link molt/migrate-failback.md %}#grant-target-database-user-permissions)<br>[Grant MySQL user permissions]({% link molt/migrate-failback.md %}?filter=mysql#grant-target-database-user-permissions)<br>[Grant Oracle user permissions]({% link molt/migrate-failback.md %}?filter=oracle#grant-target-database-user-permissions) |
| Database | Required Privileges | Details |
|------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| PostgreSQL source | <ul><li>`SUPERUSER` role (recommended), or the following granular permissions:</li><li>`CREATE` and `SELECT` on database and tables to replicate.</li><li>Table ownership for adding tables to publications.</li><li>`LOGIN` and `REPLICATION` privileges to create replication slots and access replication data.</li></ul> | [Create PostgreSQL migration user]({% link molt/migrate-load-replicate.md %}#create-migration-user-on-source-database) |
| MySQL source | <ul><li>`SELECT` on tables to replicate.</li><li>`REPLICATION SLAVE` and `REPLICATION CLIENT` privileges for binlog access.</li><li>For `--fetchMetadata`, either `SELECT` on the source database or `PROCESS` globally.</li></ul> | [Create MySQL migration user]({% link molt/migrate-load-replicate.md %}?filters=mysql#create-migration-user-on-source-database) |
| Oracle source | <ul><li>`SELECT`, `INSERT`, `UPDATE` on `_replicator_sentinel` table.</li><li>`SELECT` on `V$` views (`V$LOG`, `V$LOGFILE`, `V$LOGMNR_CONTENTS`, `V$ARCHIVED_LOG`, `V$LOG_HISTORY`).</li><li>`SELECT` on `SYS.V$LOGMNR_*` views (`SYS.V$LOGMNR_DICTIONARY`, `SYS.V$LOGMNR_LOGS`, `SYS.V$LOGMNR_PARAMETERS`, `SYS.V$LOGMNR_SESSION`).</li><li>`LOGMINING` privilege.</li><li>`EXECUTE` on `DBMS_LOGMNR`.</li><li>For Oracle Multitenant, the user must be a common user (prefixed with `C##`) with privileges granted on both CDB and PDB.</li></ul> | [Create Oracle migration user]({% link molt/migrate-load-replicate.md %}?filters=oracle#create-migration-user-on-source-database)<br><br>[Create sentinel table]({% link molt/migrate-load-replicate.md %}#create-source-sentinel-table)<br><br>[Grant LogMiner privileges]({% link molt/migrate-load-replicate.md %}#grant-logminer-privileges) |
| CockroachDB target (forward replication) | <ul><li>`ALL` on target database.</li><li>`CREATE` on schema.</li><li>`SELECT`, `INSERT`, `UPDATE`, `DELETE` on target tables.</li><li>`CREATEDB` privilege for creating staging schema.</li></ul> | [Create CockroachDB user]({% link molt/migrate-load-replicate.md %}#create-the-sql-user) |
| PostgreSQL, MySQL, or Oracle target (failback) | <ul><li>`SELECT`, `INSERT`, `UPDATE` on tables to fail back to.</li><li>For Oracle, `FLASHBACK` is also required.</li></ul> | [Grant PostgreSQL user permissions]({% link molt/migrate-failback.md %}#grant-target-database-user-permissions)<br><br>[Grant MySQL user permissions]({% link molt/migrate-failback.md %}?filter=mysql#grant-target-database-user-permissions)<br><br>[Grant Oracle user permissions]({% link molt/migrate-failback.md %}?filter=oracle#grant-target-database-user-permissions) |

## Installation

Expand Down Expand Up @@ -398,9 +398,9 @@ replicator mylogical
</section>

<section class="filter-content" markdown="1" data-scope="oracle">
{To start replication after an [initial data load with MOLT Fetch]({% link molt/migrate-load-replicate.md %}?filters=oracle#start-fetch), use the `oraclelogminer` command:
To start replication after an [initial data load with MOLT Fetch]({% link molt/migrate-load-replicate.md %}?filters=oracle#start-fetch), use the `oraclelogminer` command:

% include_cached copy-clipboard.html %}
{% include_cached copy-clipboard.html %}
~~~ shell
replicator oraclelogminer
~~~
Expand Down Expand Up @@ -678,6 +678,12 @@ To verify that your connections and configuration work properly, run MOLT Replic

## Troubleshooting

<div class="filters filters-big clearfix">
<button class="filter-button" data-scope="postgres">PostgreSQL</button>
<button class="filter-button" data-scope="mysql">MySQL</button>
<button class="filter-button" data-scope="oracle">Oracle</button>
</div>

{% include molt/molt-troubleshooting-replication.md %}

{% include molt/molt-troubleshooting-failback.md %}
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