ad to some interesting
results.
On Tue, Aug 30, 2016 at 10:24 AM, Kristian Nielsen wrote:
> Rich Prohaska writes:
>
> > I rearranged the tokudb lock request wait function a little bit, and got
> > the lock tree unit tests to compile again (since the API changed).
> commit
> &
replicator attempts to kill the query for
a mysql slave thread that is waiting for a prior txn to complete. This
does not have any effect on tokudb. The workaround for now is to use an
extremely small tokudb lock timeout so that the stalls are short.
On Tue, Aug 16, 2016 at 9:59 PM, Rich Prohaska wrote
Hello Kristian,
I am working on a second variant of the kill query design that will only
kill the pending lock request if any for the thd being killed. The
previous design had a problem when killing the query that triggered the
wait for call
On Aug 15, 2016 7:26 PM, "Rich Prohaska&qu
Hello Kristian,
I have a prototype of the TokuFT code that will cause ALL lock waiters to
call their killed callback here:
https://github.com/prohaska7/tokuft/tree/kill_lockers
On Mon, Aug 15, 2016 at 11:51 AM, Rich Prohaska wrote:
> Hello Kristian,
> See attached snapshot of slave threa
8:16 AM, Rich Prohaska wrote:
> Hello Kristian,
> The simplest kill_query implementation for tokudb would just signal all of
> the pending lock request's condition variables. This would cause the
> killed callback to be called. A performance refinement, if necessary,
>
n) to identify and
signal a condition variable for a blocked thread B.
On Mon, Aug 15, 2016 at 5:42 AM, Kristian Nielsen
wrote:
> Rich Prohaska writes:
>
> > tokudb lock timeouts are resolving the replication stall. unfortunately,
> > the tokudb lock timeout is 4 seconds, so the th
Hello Kristian,
On Sun, Aug 14, 2016 at 1:51 PM, Kristian Nielsen
wrote:
> Rich Prohaska writes:
>
> > I suspect that the poor slave replication performance for optimistic
> > replication occurs because TokuDB does not implement the kill_query
> > handlerton functio
.
InnoDB implements kill_query while TokuDB does not implement it.
On Fri, Aug 12, 2016 at 12:47 PM, Rich Prohaska wrote:
> Hello Kristian,
> I am running your opt2 branch with a small sysbench oltp test (1 table,
> 1000 rows, 8 threads). the good news is that the slave stalls du
Hello Kristian,
I am running your opt2 branch with a small sysbench oltp test (1 table,
1000 rows, 8 threads). the good news is that the slave stalls due to lock
timeouts are gone. the bad news is that the slave performance is suspect.
when slave in conservative mode with 2 threads, the tokudb w
Hello,
tokudb uses getline to retrieve lines from various linux system files and
tokudb frees the buffer that getline allocates. perhaps getline has a
problem, or tokudb's portability function that computes the system's
processor frequency is broken. i dont see a bug in tokudb related to this
pro
3 of the tests fail when they hit the test case time limit. either
increase the limit, mark these tests as big tests, or disable these tests.
these 3 tests are tokudb.rows-32m-0, tokudb.rows-32m-1 and
tokudb.savepoint-5.
On Wed, Feb 4, 2015 at 7:08 AM, Otto Kekäläinen wrote:
> Failing TokuDB t
mysqld crashed and left a core file. posting the stack traces from the
core file would help.
On Tue, Feb 3, 2015 at 6:08 AM, Otto Kekäläinen wrote:
> Hello!
>
> Are here any TokuDB devs who could help me debug why TokuDB does
> repeatedly fails to pass build suite tests when built on
> Launchp
Hello Otto,
Have not investigated these problems yet. Created a tokudb issue to track:
https://github.com/Tokutek/mariadb-5.5/issues/53
On Mon, Apr 14, 2014 at 5:03 AM, Otto Kekäläinen wrote:
> Hello Richard,
>
> Any chance of getting your comments on this..? Thanks!
>
>
>
> 2014-04-01 12:25 G
suppose that I have a THDVAR_INT variable with min = -1 and max = 1, and i
set it to -1. how come select @@var returns 4294967295 instead of -1?
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Hello,
TokuDB generates an empty result set for a select with sub-select, but
generated a non-empty result set for the same query when creating a new
table. The result set should be the same in both cases. What is going on
here? InnoDB computes an empty result set for both cases.
I traced the
LIBC_2.3.2 ,
inline_mysql_cond_timedwait , get_event , worker_main , start_thread ,
clone
thanks
rich prohaska
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I have a ULONGLONG system variable in my storage engine, and I set its
value to '-1' on the mysqld command line. Its value gets set to all
ones without any warnings or errors. The number conversion functions
just cast between longlong and ulonglong types without regard to the
sign of the number.
a_tokudb.cc:4679:ha_tokudb::index_end
0x7f3b0352d078
131205 20:52:40 [ERROR] TokuDB: toku_c_close: Transaction cannot do work
when child exists
/home/prohaska/mariadb-5.5.34/storage/tokudb/ha_tokudb.cc:4684 index_end:
Assertion `Handlerton: r==0 ' failed (errno=0)
On Thu, Dec 5, 2013 at 12:02
software does not expect the commit to occur before
index_end is called. Is this assumption correct? Since mariadb (and i
suspect mysql) does this, it appears that the storage engine should expect
commit before index_end. Any comments?
Thanks
Rich Prohaska
i have a MYSQL_THDVAR_STR session variable in my storage engine. i
want to update its value from the storage engine. it was suggested
that i use "THDVAR(x)=new_value" to do it. i noticed that
update_func_str is NOT called, so i wonder about the contract. is the
caller responsible for memory man
Crash occurs when using the TokuDB storage engine in MySQL 5.5.30. Any
insight into what may be causing this problem would be really nice. Sorry,
but this is all the info that i have.
Here is a stack trace from the mysql error log:
#1 0x006b760f in handle_fatal_signal (sig=11)
at
my
of the key
comparisons?
thanks
rich prohaska
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Thanks for the pointer!
On Fri, Apr 5, 2013 at 5:35 PM, Sergei Golubchik wrote:
> Hi, Rich!
>
> On Apr 05, Rich Prohaska wrote:
> > i am interested in writing upgrade tests. we fixed a bug in our storage
> > engine that executed some upgrade code for tables created in a
to approach this?
thanks
On Fri, Apr 5, 2013 at 4:29 PM, Reindl Harald wrote:
>
> Am 05.04.2013 22:24, schrieb Rich Prohaska:
> > I was wondering if there was a way to run a mysql-test on with a
> prebuilt data directory. If so, can you point me
> > to some example?
>
Hello,
I was wondering if there was a way to run a mysql-test on with a prebuilt
data directory. If so, can you point me to some example?
Thanks
Rich Prohaska
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Hello Sergei,
The rpm patch worked great.
Thanks
On Tue, Jan 29, 2013 at 12:41 PM, Sergei Golubchik wrote:
> Hi, Rich!
>
> On Jan 29, Rich Prohaska wrote:
>> Hello Sergei,
>> I look forward to using the patch. Please let me known when and where
>> to find it.
>
&g
:
> Hi, Rich!
>
> On Jan 28, Rich Prohaska wrote:
>> Hello Sergei,
>>
>> Mixed results when just using CMAKE_PACKAGING_INSTALL_PREFIX to build
>> Mariadb RPMs with a non-default install prefix.
>>
>> Good news: the installed files use the supplied install pr
Hi, Rich!
>
> On Jan 24, Rich Prohaska wrote:
>> Is it possible to change the MariaDB RPM install directory to be
>> something like /opt/someotherplace? I tried using
>> CMAKE_INSTALL_PREFIX but it seemed to be ignored.
>
> Set CPACK_PACKAGING_INSTALL_PREFIX, that works.
Suppose that we have a RHEL5 machine running and we want to install
MariaDB on it. Unfortunately, it conflicts with files installed by
the mysql package.
# rpm -i MariaDB-5.5.28a-centos5-x86_64-common.rpm
warning: MariaDB-5.5.28a-centos5-x86_64-common.rpm: Header V3 DSA
signature: NOKEY, key ID 1
Is it possible to change the MariaDB RPM install directory to be
something like /opt/someotherplace? I tried using
CMAKE_INSTALL_PREFIX but it seemed to be ignored.
On Thu, Jan 24, 2013 at 9:49 AM, Sergei Golubchik wrote:
> Hi, Rich!
>
> On Jan 22, Rich Prohaska wrote:
>> It wor
It worked very nicely. How hard to you think it is to port to MySQL?
Yes, we support MySQL.
On Mon, Jan 21, 2013 at 12:01 PM, Sergei Golubchik wrote:
> Hi, Rich!
>
> On Jan 21, Rich Prohaska wrote:
>> How do you build the mariadb RPMs? Are you using rpmbuild or cpack?
>>
Thanks for the pointer. I will try it out.
On Mon, Jan 21, 2013 at 12:01 PM, Sergei Golubchik wrote:
> Hi, Rich!
>
> On Jan 21, Rich Prohaska wrote:
>> How do you build the mariadb RPMs? Are you using rpmbuild or cpack?
>> Is there a top level script that uses rpmbuild o
How do you build the mariadb RPMs? Are you using rpmbuild or cpack?
Is there a top level script that uses rpmbuild or cpack that I should
use?
Thanks
Rich Prohaska
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the tokudb storage engine on both mysql and mariadb.
Is the mariadb design going to change to match the 5.6 implementation,
or are the designs now separate?
Thanks
Rich Prohaska
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Hello,
The ha_recover function in MySQL 5.5.28 has a block of code in the
middle of it labelled with WILL_BE_DELETED_LATER that gets compiled
into mysqld. The ha_recover function in Mariadb 5.5.28a does not have
this code in it. It appears that the code forces prepared
transactions to be rolled
back in
MySQL.
Does anyone know what this code does?
Does anyone know why this code exists in MySQL but not in Mariadb?
Thanks
Rich Prohaska
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revision 3584 named the test case for mdev 3885 "test_mdev3855" (NOTE 3855).
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More help :
test ran for a few hours without error.
thanks for quickly fixing the problems.
how can we get tokudb into the mariadb regression environment?
On Mon, Nov 19, 2012 at 12:39 PM, Kristian Nielsen
wrote:
> Rich Prohaska writes:
>
>> When one runs multiple XA clients with a debug build
cc line 7567. An unlocked mutex is being unlocked. I
discussed this problem with Sergei and we think that the problem is
caused a few lines above. I updated my branch (
lp:~prohaska7/maria/2pc-crash-with-maria10-and-tokudb) with a proposed
bug fix.
Rich Prohaska
On Sun, Nov 18, 2012 at 6:59
fixed.
Thanks
Rich Prohaska
Here is what i did to reproduce the problem:
mkdir m10 m10-build
cd m10-build
# get my maria10 branch and the 6.5.0 fractal tree SDK
bzr branch lp:~prohaska7/maria/2pc-crash-with-maria10-and-tokudb
wget
https://s3.amazonaws.com/tokutek-mysql-6.5.0/tokufractaltreeindex
sion.
What is the best way to get this fixed? Would it help if i made the
test case available?
Thanks
Rich Prohaska
Here is the stack trace:
Program received signal SIGABRT, Aborted.
0x003006a32885 in raise () from /lib64/libc.so.6
(gdb) bt
#0 0x003006a32885 in raise () from /lib6
problems in mysql-5.6.7-rc
To: Rich Prohaska
Cc: intern...@lists.mysql.com
Hi, Rich!
On Oct 11, Rich Prohaska wrote:
> Hello Sergei,
> Can you give me a pointer to a source files, or a source control changeset?
This is the bug report: https://bugs.launchpad.net/maria/+bug/578117
And t
the CFI directives that are needed to compile
mariadb.
On Mon, Aug 6, 2012 at 3:44 PM, Kristian Nielsen
wrote:
> Rich Prohaska writes:
>
>> I suspect that we have a tool chain problem here at tokutek.
>> We can build maria 5.5 with gcc 4.7.1 and binutils 2.22 on a centos
>&g
ourselves).
So, we are doing additional experiments to find the root cause of this problem.
Thanks for information about successful maria 5.5 builds with gcc 4.7.1.
On Mon, Aug 6, 2012 at 7:46 AM, Kristian Nielsen
wrote:
>>>>>>> "Rich" == Rich Prohaska writes:
>
are deprecated in favour
of using-declarations; suggestion: add the ‘using’ keyword
[-Wdeprecated]
On Fri, Aug 3, 2012 at 2:08 PM, Michael Widenius wrote:
>
> Hi!
>
>>>>>> "Rich" == Rich Prohaska writes:
>
> Rich> hello,
> Rich> we have been u
:
Assembler messages:
/home/tokubuild/build-tokudb-46462/mariadb-5.5.25-tokudb-46462-linux-x86_64-build/mariadb-5.5.25-tokudb-46462-src/mysys/my_context.c:207:
Error: CFI instruction used without previous .cfi_startproc
what compiler do you use to build mariadb?
thanks
rich prohaska
ines). Is this accurate?
Thanks
Rich Prohaska
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Hello,
Thanks. Per Elena's request, i created bug #1023404.
Rich Prohaska
On Wed, Jul 11, 2012 at 7:27 AM, Michael Widenius
wrote:
>
> Hi!
>
>>>>>> "Rich" == Rich Prohaska writes:
>
> Rich> Hello,
> Rich> I posted our fix at lp:~proha
Hello,
I posted our fix at lp:~prohaska7/maria/5.5-savepoint-offset-fix.
Does it make sense?
Thanks
Rich Prohaska
On Mon, Jul 9, 2012 at 7:17 PM, Rich Prohaska wrote:
> Hello,
> It turns out the previous explanation was WRONG.
>
> Here is another stab at the problem. My understa
, modifies its idea of the
total savepoint data size, and sets it to the offset of the handlerton's
local state
If this is correct, then why does the ha_initialize_handlerton function do
step (2) twice? It looks like a code merge bug to me.
Rich Prohaska
On Mon, Jul 9, 2012 at 4:41 PM, Rich Pro
is a possible fix:
Move the base initialization of the savepoint_alloc_size from ha_init to
the global intiializer. With this change, the handlerton's offsets are
computed AFTER the SAVEPOINT space is reserved.
Is this correct?
Thanks
Rich Prohaska
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with mariadb-5.5.25 on a centos 5.8 machine, when i run this:
./mysql-test-run.pl --suite=rpl --force --max-test-fail=0 --nowarnings
--parallel=4
mysqld crashes in the xtradb code trying to deref a NULL pointer. core
files are available.
Core was generated by
`/home/prohaska/distros/mariadb-5.5
Hello Elena,
Thanks for pointing out to us the engine independent tests. We would
like to run this test with TokuDB as part of our test process, and
look forward to its release.
Rich Prohaska
Tokutek
On Tue, Jun 26, 2012 at 12:58 PM, Elena Stepanova wrote:
> Hi Rich,
>
>
> On 6/
ft
engines/funcs.se_join_natural_left_outer engines/funcs.sq_all
engines/funcs.sq_error engines/funcs.up_calendar_range
engines/iuds.delete_time engines/iuds.insert_decimal
engines/iuds.insert_number engines/iuds.insert_time
engines/iuds.type_bit_iuds engines/iuds.update_delete_number
engines/iuds.update_time
th
Hello,
Thanks for the feedback on how to fix our replication slave crash.
I hacked the mariadb 5.5.23 and ended up with the attached patch.
Rich Prohaska
On Fri, Jun 8, 2012 at 1:37 PM, Michael Widenius wrote:
>
> Hi!
>
> >>>>> "Zardosht" == Zardosht Kas
We made a slightly different change for MariaDB 5.5.24 in the
TC_LOG_BINLOG::log_and_order function.
$ diff log.cc.orig log.cc
7424a7425,7426
> if (thd_get_ha_data(thd, binlog_hton) == NULL)
> thd->binlog_setup_trx_data();
Is this correct?
Is this sufficient?
Thanks
RIch Prohask
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