Mixing
Oracle to MySQL with SQLines: Lost connection to MySQL server during query
I need to migrate data from a large Oracle table (8.5 million rows) to MySQL. From forum searches, SQLines seemed to be the best option.
However, when I run my data transfer, I get the following error:
Transferring database (1 session):
USER.TABLE - Started (1 of 1, session 1)
USER.TABLE - Open cursor (5342 rows read, 63 ms, session 1)
USER.TABLE - Drop target table (47 ms, session 1)
USER.TABLE - Create target table (46 ms, session 1)
USER.TABLE - Data transfer failed
Lost connection to MySQL server during query
Rows read: 5342 (84794 rows/sec)
Rows written: 0 (0 rows/sec, 0 bytes, 0 bytes/sec)
Transfer time: 297 ms (63 ms read, 0 ms write)
Failed tables (1 table):
1. USER.TABLE - Lost connection to MySQL server during query
The very strange thing is that it happens immediately, even before any timeout can occur. Based on tips on a similar error (outside of SQLines), I've tried setting max_allowed_packet to 64M, but that didn't make a difference.
Does anyone have an idea?
mysql oracle database-migration
asked Nov 21 '18 at 14:58
mrgoumrgou
216
add a comment |
I need to migrate data from a large Oracle table (8.5 million rows) to MySQL. From forum searches, SQLines seemed to be the best option.
However, when I run my data transfer, I get the following error:
Transferring database (1 session):
USER.TABLE - Started (1 of 1, session 1)
USER.TABLE - Open cursor (5342 rows read, 63 ms, session 1)
USER.TABLE - Drop target table (47 ms, session 1)
USER.TABLE - Create target table (46 ms, session 1)
USER.TABLE - Data transfer failed
Lost connection to MySQL server during query
Rows read: 5342 (84794 rows/sec)
Rows written: 0 (0 rows/sec, 0 bytes, 0 bytes/sec)
Transfer time: 297 ms (63 ms read, 0 ms write)
Failed tables (1 table):
1. USER.TABLE - Lost connection to MySQL server during query
The very strange thing is that it happens immediately, even before any timeout can occur. Based on tips on a similar error (outside of SQLines), I've tried setting max_allowed_packet to 64M, but that didn't make a difference.
Does anyone have an idea?
mysql oracle database-migration
asked Nov 21 '18 at 14:58
mrgoumrgou
216
What do the MySQL logs say?
– symcbean
Nov 21 '18 at 15:03
Not much I'm afraid. Neither the error nor the general log show anything helpful.
– mrgou
Nov 21 '18 at 15:31
add a comment |
I need to migrate data from a large Oracle table (8.5 million rows) to MySQL. From forum searches, SQLines seemed to be the best option.
However, when I run my data transfer, I get the following error:
Transferring database (1 session):
USER.TABLE - Started (1 of 1, session 1)
USER.TABLE - Open cursor (5342 rows read, 63 ms, session 1)
USER.TABLE - Drop target table (47 ms, session 1)
USER.TABLE - Create target table (46 ms, session 1)
USER.TABLE - Data transfer failed
Lost connection to MySQL server during query
Rows read: 5342 (84794 rows/sec)
Rows written: 0 (0 rows/sec, 0 bytes, 0 bytes/sec)
Transfer time: 297 ms (63 ms read, 0 ms write)
Failed tables (1 table):
1. USER.TABLE - Lost connection to MySQL server during query
The very strange thing is that it happens immediately, even before any timeout can occur. Based on tips on a similar error (outside of SQLines), I've tried setting max_allowed_packet to 64M, but that didn't make a difference.
Does anyone have an idea?
mysql oracle database-migration
asked Nov 21 '18 at 14:58
mrgoumrgou
216
I need to migrate data from a large Oracle table (8.5 million rows) to MySQL. From forum searches, SQLines seemed to be the best option.
However, when I run my data transfer, I get the following error:
Transferring database (1 session):
USER.TABLE - Started (1 of 1, session 1)
USER.TABLE - Open cursor (5342 rows read, 63 ms, session 1)
USER.TABLE - Drop target table (47 ms, session 1)
USER.TABLE - Create target table (46 ms, session 1)
USER.TABLE - Data transfer failed
Lost connection to MySQL server during query
Rows read: 5342 (84794 rows/sec)
Rows written: 0 (0 rows/sec, 0 bytes, 0 bytes/sec)
Transfer time: 297 ms (63 ms read, 0 ms write)
Failed tables (1 table):
1. USER.TABLE - Lost connection to MySQL server during query
The very strange thing is that it happens immediately, even before any timeout can occur. Based on tips on a similar error (outside of SQLines), I've tried setting max_allowed_packet to 64M, but that didn't make a difference.
Does anyone have an idea?
mysql oracle database-migration
mysql oracle database-migration
asked Nov 21 '18 at 14:58
mrgoumrgou
216
asked Nov 21 '18 at 14:58
mrgoumrgou
216
asked Nov 21 '18 at 14:58
mrgoumrgou
216
asked Nov 21 '18 at 14:58
mrgoumrgou
216
asked Nov 21 '18 at 14:58
mrgoumrgou
216
216
What do the MySQL logs say?
– symcbean
Nov 21 '18 at 15:03
Not much I'm afraid. Neither the error nor the general log show anything helpful.
– mrgou
Nov 21 '18 at 15:31
add a comment |
What do the MySQL logs say?
– symcbean
Nov 21 '18 at 15:03
Not much I'm afraid. Neither the error nor the general log show anything helpful.
– mrgou
Nov 21 '18 at 15:31
What do the MySQL logs say?
– symcbean
Nov 21 '18 at 15:03
What do the MySQL logs say?
– symcbean
Nov 21 '18 at 15:03
Not much I'm afraid. Neither the error nor the general log show anything helpful.
– mrgou
Nov 21 '18 at 15:31
Not much I'm afraid. Neither the error nor the general log show anything helpful.
– mrgou
Nov 21 '18 at 15:31
add a comment |
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What do the MySQL logs say?
– symcbean
Nov 21 '18 at 15:03
Not much I'm afraid. Neither the error nor the general log show anything helpful.
– mrgou
Nov 21 '18 at 15:31