Table does not exist even if there is one












1















I have MySQL master-slave replication setup in Amazon EC2. For the sake of resilience, I have set up LVM on RAID 10 array, on both master as well as slave. I have been using ec2-consistent-snapshot for some time now to take the snapshot from the slave instance.



So, I tried to create the disks from those snapshots and attach them to a new MySQL installation. Since the new installation would not recognise the LVM and RAID setup, I reactivated the LVM and RAID in the new instance using the following commands.





  1. Scan the disks for RAID array members:



    mdadm --examine --scan <comprising disks>



  2. Reactivate the RAID array:



    mdadm -A -s



  3. Reactivate the lvm:



    vgchange -ay



Since snapshotting took the backup of the ibdata and iblogfiles, I removed them for the fresh installation. MySQL would start normal.



Help me out of this










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bumped to the homepage by Community 13 mins ago


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  • 1





    You haven't really asked a question, or explained what errors or problems you're having - only described steps you've taken. Please elaborate on the issue by editing the question.

    – Sami Kuhmonen
    Sep 1 '15 at 12:13
















1















I have MySQL master-slave replication setup in Amazon EC2. For the sake of resilience, I have set up LVM on RAID 10 array, on both master as well as slave. I have been using ec2-consistent-snapshot for some time now to take the snapshot from the slave instance.



So, I tried to create the disks from those snapshots and attach them to a new MySQL installation. Since the new installation would not recognise the LVM and RAID setup, I reactivated the LVM and RAID in the new instance using the following commands.





  1. Scan the disks for RAID array members:



    mdadm --examine --scan <comprising disks>



  2. Reactivate the RAID array:



    mdadm -A -s



  3. Reactivate the lvm:



    vgchange -ay



Since snapshotting took the backup of the ibdata and iblogfiles, I removed them for the fresh installation. MySQL would start normal.



Help me out of this










share|improve this question
















bumped to the homepage by Community 13 mins ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.











  • 1





    You haven't really asked a question, or explained what errors or problems you're having - only described steps you've taken. Please elaborate on the issue by editing the question.

    – Sami Kuhmonen
    Sep 1 '15 at 12:13














1












1








1








I have MySQL master-slave replication setup in Amazon EC2. For the sake of resilience, I have set up LVM on RAID 10 array, on both master as well as slave. I have been using ec2-consistent-snapshot for some time now to take the snapshot from the slave instance.



So, I tried to create the disks from those snapshots and attach them to a new MySQL installation. Since the new installation would not recognise the LVM and RAID setup, I reactivated the LVM and RAID in the new instance using the following commands.





  1. Scan the disks for RAID array members:



    mdadm --examine --scan <comprising disks>



  2. Reactivate the RAID array:



    mdadm -A -s



  3. Reactivate the lvm:



    vgchange -ay



Since snapshotting took the backup of the ibdata and iblogfiles, I removed them for the fresh installation. MySQL would start normal.



Help me out of this










share|improve this question
















I have MySQL master-slave replication setup in Amazon EC2. For the sake of resilience, I have set up LVM on RAID 10 array, on both master as well as slave. I have been using ec2-consistent-snapshot for some time now to take the snapshot from the slave instance.



So, I tried to create the disks from those snapshots and attach them to a new MySQL installation. Since the new installation would not recognise the LVM and RAID setup, I reactivated the LVM and RAID in the new instance using the following commands.





  1. Scan the disks for RAID array members:



    mdadm --examine --scan <comprising disks>



  2. Reactivate the RAID array:



    mdadm -A -s



  3. Reactivate the lvm:



    vgchange -ay



Since snapshotting took the backup of the ibdata and iblogfiles, I removed them for the fresh installation. MySQL would start normal.



Help me out of this







mysql replication amazon-ec2






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Sep 1 '15 at 13:30









miracle173

6,5161837




6,5161837










asked Sep 1 '15 at 11:28









sameergautamsameergautam

564




564





bumped to the homepage by Community 13 mins ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.







bumped to the homepage by Community 13 mins ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.










  • 1





    You haven't really asked a question, or explained what errors or problems you're having - only described steps you've taken. Please elaborate on the issue by editing the question.

    – Sami Kuhmonen
    Sep 1 '15 at 12:13














  • 1





    You haven't really asked a question, or explained what errors or problems you're having - only described steps you've taken. Please elaborate on the issue by editing the question.

    – Sami Kuhmonen
    Sep 1 '15 at 12:13








1




1





You haven't really asked a question, or explained what errors or problems you're having - only described steps you've taken. Please elaborate on the issue by editing the question.

– Sami Kuhmonen
Sep 1 '15 at 12:13





You haven't really asked a question, or explained what errors or problems you're having - only described steps you've taken. Please elaborate on the issue by editing the question.

– Sami Kuhmonen
Sep 1 '15 at 12:13










1 Answer
1






active

oldest

votes


















0














Removed ibdata1? You can* remove iblogfiles but not the ibdata1!!
They're system tablespaces storing tables, indexes, metadata, undologs....



*=> Removing iblogs is okay once you stop mysql but not while it's running!



Update: Removing iblogs is okay only after shutting down mysql with innodb_fast_shutdown disabled.



You might like to review this answer to understand what is wrong! You might want to do a restore from the snapshot may be.






share|improve this answer





















  • 1





    Don't remove iblogs either -- unless you have made a clean shutdown with innodb_fast_shutdown turned off. LVM is equivalent to a power failure.

    – Rick James
    Sep 1 '15 at 17:08











  • Yep... that's why the STAR is after "can" ;) & was told later on

    – mysql_user
    Sep 1 '15 at 18:25











  • * and innodb_fast_shutdown turned off. -- My added qualification.

    – Rick James
    Sep 2 '15 at 5:37











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1 Answer
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active

oldest

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1 Answer
1






active

oldest

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active

oldest

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active

oldest

votes









0














Removed ibdata1? You can* remove iblogfiles but not the ibdata1!!
They're system tablespaces storing tables, indexes, metadata, undologs....



*=> Removing iblogs is okay once you stop mysql but not while it's running!



Update: Removing iblogs is okay only after shutting down mysql with innodb_fast_shutdown disabled.



You might like to review this answer to understand what is wrong! You might want to do a restore from the snapshot may be.






share|improve this answer





















  • 1





    Don't remove iblogs either -- unless you have made a clean shutdown with innodb_fast_shutdown turned off. LVM is equivalent to a power failure.

    – Rick James
    Sep 1 '15 at 17:08











  • Yep... that's why the STAR is after "can" ;) & was told later on

    – mysql_user
    Sep 1 '15 at 18:25











  • * and innodb_fast_shutdown turned off. -- My added qualification.

    – Rick James
    Sep 2 '15 at 5:37
















0














Removed ibdata1? You can* remove iblogfiles but not the ibdata1!!
They're system tablespaces storing tables, indexes, metadata, undologs....



*=> Removing iblogs is okay once you stop mysql but not while it's running!



Update: Removing iblogs is okay only after shutting down mysql with innodb_fast_shutdown disabled.



You might like to review this answer to understand what is wrong! You might want to do a restore from the snapshot may be.






share|improve this answer





















  • 1





    Don't remove iblogs either -- unless you have made a clean shutdown with innodb_fast_shutdown turned off. LVM is equivalent to a power failure.

    – Rick James
    Sep 1 '15 at 17:08











  • Yep... that's why the STAR is after "can" ;) & was told later on

    – mysql_user
    Sep 1 '15 at 18:25











  • * and innodb_fast_shutdown turned off. -- My added qualification.

    – Rick James
    Sep 2 '15 at 5:37














0












0








0







Removed ibdata1? You can* remove iblogfiles but not the ibdata1!!
They're system tablespaces storing tables, indexes, metadata, undologs....



*=> Removing iblogs is okay once you stop mysql but not while it's running!



Update: Removing iblogs is okay only after shutting down mysql with innodb_fast_shutdown disabled.



You might like to review this answer to understand what is wrong! You might want to do a restore from the snapshot may be.






share|improve this answer















Removed ibdata1? You can* remove iblogfiles but not the ibdata1!!
They're system tablespaces storing tables, indexes, metadata, undologs....



*=> Removing iblogs is okay once you stop mysql but not while it's running!



Update: Removing iblogs is okay only after shutting down mysql with innodb_fast_shutdown disabled.



You might like to review this answer to understand what is wrong! You might want to do a restore from the snapshot may be.







share|improve this answer














share|improve this answer



share|improve this answer








edited Apr 13 '17 at 12:42









Community

1




1










answered Sep 1 '15 at 12:13









mysql_usermysql_user

1,58468




1,58468








  • 1





    Don't remove iblogs either -- unless you have made a clean shutdown with innodb_fast_shutdown turned off. LVM is equivalent to a power failure.

    – Rick James
    Sep 1 '15 at 17:08











  • Yep... that's why the STAR is after "can" ;) & was told later on

    – mysql_user
    Sep 1 '15 at 18:25











  • * and innodb_fast_shutdown turned off. -- My added qualification.

    – Rick James
    Sep 2 '15 at 5:37














  • 1





    Don't remove iblogs either -- unless you have made a clean shutdown with innodb_fast_shutdown turned off. LVM is equivalent to a power failure.

    – Rick James
    Sep 1 '15 at 17:08











  • Yep... that's why the STAR is after "can" ;) & was told later on

    – mysql_user
    Sep 1 '15 at 18:25











  • * and innodb_fast_shutdown turned off. -- My added qualification.

    – Rick James
    Sep 2 '15 at 5:37








1




1





Don't remove iblogs either -- unless you have made a clean shutdown with innodb_fast_shutdown turned off. LVM is equivalent to a power failure.

– Rick James
Sep 1 '15 at 17:08





Don't remove iblogs either -- unless you have made a clean shutdown with innodb_fast_shutdown turned off. LVM is equivalent to a power failure.

– Rick James
Sep 1 '15 at 17:08













Yep... that's why the STAR is after "can" ;) & was told later on

– mysql_user
Sep 1 '15 at 18:25





Yep... that's why the STAR is after "can" ;) & was told later on

– mysql_user
Sep 1 '15 at 18:25













* and innodb_fast_shutdown turned off. -- My added qualification.

– Rick James
Sep 2 '15 at 5:37





* and innodb_fast_shutdown turned off. -- My added qualification.

– Rick James
Sep 2 '15 at 5:37


















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