Re: [Maria-developers] Galera-10.0 still does not work with rollbacks

2013-09-27 Thread seppo . jaakola
Quoting Kristian Nielsen : Jan Lindström writes: The point I do not understant is at ha_savepoint we have again: if ((err= ht->savepoint_set(ht, thd, (uchar *)(sv+1)+ht->savepoint_offset))) (gdb) p *sv $3 = {prev = 0xa5a5a5a5a5a5a5a5, name = 0x7f505c007390 "A", length = 1, ha_list = 0x

Re: [Maria-developers] Galera-10.0 still does not work with rollbacks

2013-09-27 Thread seppo . jaakola
Quoting Jan Lindström : Seppo, Hi, What means: 30925 15:10:36 [ERROR] Slave SQL: Could not execute Update_rows event on table test.table10_key_pk_parts_2_int_autoinc; Can't find record in 'table10_key_pk_parts_2_int_autoinc', Error_code: 1032; handler error HA_ERR_KEY_NOT_FOUND; the ev

Re: [Maria-developers] MariaDB 10 galera?

2013-03-26 Thread seppo . jaakola
Jan, MariaDB Galera Cluster 10 is in the pipeline. We have some serious merge efforts remaining and first release is possible in May/June time frame. -seppo Quoting Jan Kirchhoff : Hi, we have been playing around with 5.5.28-galera and went into more serious testing with 5.5.29-galera.

Re: [Maria-developers] Ideas for improving MariaDB/MySQL replication

2010-03-23 Thread seppo . jaakola
Quoting Henrik Ingo : Meta discussion first, replication discussion below :-) On Mon, Mar 22, 2010 at 4:41 PM, Alex Yurchenko wrote: Uh, I'm not sure I can accept this proposition. At least it seems contradictory to MariaDB's vision of being a practical, user and customer driven, database.

Re: [Maria-developers] Ideas for improving MariaDB/MySQL replication

2010-03-15 Thread seppo . jaakola
Hi Kristian, I agree with Alex's response, and I'll pick the hopefully all the remaining questions to answer here. Quoting Kristian Nielsen : So the basic for such an interface would be the ability to install hooks to be called with row data for every handler::write_row(), handler::update_

Re: [Maria-developers] Ideas for improving MariaDB/MySQL replication

2010-01-30 Thread seppo . jaakola
Hi Robert, Tungsten consistency checking technology works very well, and there is no need to "fix it" in any way. However, this method is not directly usable for multi master replication, because the target node(s) may have committed some transactions not yet seen in the originating master node,

Re: [Maria-developers] Ideas for improving MariaDB/MySQL replication

2010-01-29 Thread seppo . jaakola
Thanks Robert, this is comprehensive enough :) I'll just address the consistency checking requirement here, as I believe this is quite widely accepted goal as well. Tungsten uses a special consistency table for passing consistency checking information and which is treated in a special way in the

Re: [Maria-developers] Ideas for improving MariaDB/MySQL replication

2010-01-25 Thread seppo . jaakola
Hi Jeremy, Thanks for the input. I'm not sure what you mean with true replication latency here. Anyway, the replication system can internally measure latencies from the point where the replication event was passed for replication until it was received/applied in the receiving end. And these laten