You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert
Copy file name to clipboardExpand all lines: articles/dms/known-issues-azure-mysql-fs-online.md
+5-5Lines changed: 5 additions & 5 deletions
Display the source diff
Display the rich diff
Original file line number
Diff line number
Diff line change
@@ -16,7 +16,7 @@ Known issues associated with migrations to Azure Database for MySQL are describe
16
16
17
17
## Incompatible SQL Mode
18
18
19
-
One or more incompatible SQL modes can cause a number of different errors. Below is an example error along with server modes that should be looked at if this error occurs.
19
+
One or more incompatible SQL modes can cause many different errors. Below is an example error along with server modes that should be looked at if this error occurs.
20
20
21
21
-**Error**: An error occurred while preparing the table '{table}' in database '{database}' on server '{server}' for migration during activity '{activity}'. As a result, this table will not be migrated.
22
22
@@ -26,7 +26,7 @@ One or more incompatible SQL modes can cause a number of different errors. Below
26
26
27
27
| NO_ZERO_DATE | NO_AUTO_CREATE_USER |
28
28
| ------------- | ------------- |
29
-
| When the default value for a date on a table or the data is 0000-00-00 on the source, and the target server has the NO_ZERO_DATE SQL mode set, the schema and/or data migration will fail. There are two possible workarounds, the first is to change the default values of the columns to be NULL or a valid date. The second option, is to remove the NO_ZERO_DATE SQL mode from the global SQL mode variable. | When running migrations from MySQL source server 5.7 to MySQL target server 8.0 that are doing **schema migration of routines**, it will run into errors if no_auto_create_user SQL mode is set on MySQL source server 5.7. |
29
+
| When the default value for a date on a table or the data is 0000-00-00 on the source, and the target server has the NO_ZERO_DATE SQL mode set, the schema and/or data migration will fail. There are two possible workarounds, the first is to change the default values of the columns to be NULL or a valid date. The second option is to remove the NO_ZERO_DATE SQL mode from the global SQL mode variable. | When running migrations from MySQL source server 5.7 to MySQL target server 8.0 that are doing **schema migration of routines**, it will run into errors if no_auto_create_user SQL mode is set on MySQL source server 5.7. |
30
30
31
31
## Binlog Retention Issues
32
32
@@ -50,7 +50,7 @@ One or more incompatible SQL modes can cause a number of different errors. Below
50
50
51
51
**Limitation**: This error likely occurs when there are too many tables to migrate (>10k). There is a 4 MB limit for each call to the Azure Storage service.
52
52
53
-
**Workaround**: Please reach out to support by [creating a support request](https://ms.portal.azure.com/#blade/Microsoft_Azure_Support/HelpAndSupportBlade/overview?DMC=troubleshoot) and we can provide custom scripts to access our REST APIs directly.
53
+
**Workaround**: Reach out to support by [creating a support request](https://ms.portal.azure.com/#blade/Microsoft_Azure_Support/HelpAndSupportBlade/overview?DMC=troubleshoot) and we can provide custom scripts to access our REST APIs directly.
54
54
55
55
## Duplicate key entry issue
56
56
@@ -60,7 +60,7 @@ One or more incompatible SQL modes can cause a number of different errors. Below
60
60
61
61
**Limitation**: This error can be caused by timeout or broken connection to the target, resulting in duplicate primary keys. It may also be related to multiple migrations to the target running at the same time, or the user having test workloads running on the target while the migration is running. Additionally, the target may require primary keys to be unique, even though they are not required to be so on the source.
62
62
63
-
**Workaround**: To resolve this issue, ensure that there are no duplicate migrations running and that the source primary keys are unique. If error persists, please reach out to support by [creating a support request](https://ms.portal.azure.com/#blade/Microsoft_Azure_Support/HelpAndSupportBlade/overview?DMC=troubleshoot) and we can provide custom scripts to access our REST APIs directly.
63
+
**Workaround**: To resolve this issue, ensure that there are no duplicate migrations running and that the source primary keys are unique. If error persists, reach out to support by [creating a support request](https://ms.portal.azure.com/#blade/Microsoft_Azure_Support/HelpAndSupportBlade/overview?DMC=troubleshoot) and we can provide custom scripts to access our REST APIs directly.
64
64
65
65
## Replicated operation had mismatched rows error
66
66
@@ -120,7 +120,7 @@ One or more incompatible SQL modes can cause a number of different errors. Below
120
120
121
121
**Potential error message**: Referencing column '{pk column 1}' and referenced column '{fk column 1}' in foreign key constraint '{key}' are incompatible.
122
122
123
-
**Limitation**: The error can cause schema migration of a table to fail, as the PK column in table 1 may not be compatible with the FK column in table do.
123
+
**Limitation**: The error can cause schema migration of a table to fail, as the PK column in table 1 may not be compatible with the FK column in table 2.
124
124
125
125
**Workaround**: To resolve this issue, it is recommended to drop the foreign key and re-create it after the migration process is completed.
0 commit comments