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December 2015

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[Maria-developers] The compile errors on Linux on Power
by Lixun Peng 04 Dec '15

04 Dec '15

Hi everyone, Recently I want to test MariaDB 10.1.9 on Linux on Power8. *But GCC will report following errors:* [ 52%] Building CXX object > storage/innobase/CMakeFiles/innobase.dir/api/api0api.cc.o > In file included from > /root/mariadb-10.1.9/storage/innobase/include/ut0ut.h:36, > from > /root/mariadb-10.1.9/storage/innobase/include/univ.i:636, > from > /root/mariadb-10.1.9/storage/innobase/api/api0api.cc:27: > /root/mariadb-10.1.9/storage/innobase/include/os0sync.h:521:4: error: > #error "Unsupported platform" > [ 52%] Building CXX object > storage/archive/CMakeFiles/archive.dir/ha_archive.cc.o > In file included from > /root/mariadb-10.1.9/storage/innobase/include/sync0sync.h:837, > from > /root/mariadb-10.1.9/storage/innobase/include/mem0mem.h:34, > from > /root/mariadb-10.1.9/storage/innobase/include/data0data.h:33, > from > /root/mariadb-10.1.9/storage/innobase/include/que0que.h:30, > from > /root/mariadb-10.1.9/storage/innobase/include/api0misc.h:32, > from > /root/mariadb-10.1.9/storage/innobase/api/api0api.cc:38: > /root/mariadb-10.1.9/storage/innobase/include/sync0sync.ic: In function > ‘lock_word_t ib_mutex_test_and_set(ib_mutex_t*)’: > /root/mariadb-10.1.9/storage/innobase/include/sync0sync.ic:85: error: > ‘os_atomic_test_and_set’ was not declared in this scope > /root/mariadb-10.1.9/storage/innobase/include/sync0sync.ic: In function > ‘void mutex_reset_lock_word(ib_mutex_t*)’: > /root/mariadb-10.1.9/storage/innobase/include/sync0sync.ic:113: error: > ‘os_atomic_clear’ was not declared in this scope > make[2]: *** [storage/innobase/CMakeFiles/innobase.dir/api/api0api.cc.o] > Error 1 > make[1]: *** [storage/innobase/CMakeFiles/innobase.dir/all] Error 2 > make[1]: *** Waiting for unfinished jobs.... I found the problem is: *storage/innobase/include/sync0sync.ic* > ib_mutex_test_and_set( > /*==================*/ > ib_mutex_t* mutex) /*!< in: mutex */ > { > #if defined(HAVE_ATOMIC_BUILTINS) > return(os_atomic_test_and_set(&mutex->lock_word)); > #else *storage/innobase/include/os0sync.h* > #if defined(__powerpc__) || defined(__aarch64__) > /* > os_atomic_test_and_set_byte_release() should imply a release barrier > before > setting, and a full barrier after. But __sync_lock_test_and_set() is only > documented as an aquire barrier. So on PowerPC we need to add the full > barrier explicitly. */ > # define os_atomic_test_and_set_byte_release(ptr, new_val) \ > do { __sync_lock_release(ptr); \ > __sync_synchronize(); } while (0) > #else Only HAVE_IB_GCC_ATOMIC_TEST_AND_SET or IB_STRONG_MEMORY_MODEL will enable codes about os_atomic_test_and_set() and os_atomic_clear(). But on my Power8 environment, HAVE_ATOMIC_BUILTINS is defined, HAVE_IB_GCC_ATOMIC_TEST_AND_SET and IB_STRONG_MEMORY_MODEL are not defined. So in sync0sync.ic, os_atomic_test_and_set() is used, but in os0sync.h, os_atomic_test_and_set() is not defined. Does anybody know how to solve this problem? I'm not familiar with Power. Thanks, Lixun -- Staff Database Engineer @ Alibaba Cloud Computing Oracle ACE for MySQL Phone: +86 18658156856 (Hangzhou) Blog: http://www.penglixun.com

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[Maria-developers] Voting for some MariaDB Server related submissions for Percona Live
by Colin Charles 03 Dec '15

03 Dec '15

Hi all, It turns out that what is considered to be the largest conference for those interested in the MySQL world, nowadays called the Percona Live Data Performance Conference, is requiring the community to vote on submissions that they would like to hear. Only after voting, will those with a certain threshold (not published) be sent to the next level for the program committee to vote on. Its clear that you *do not* have to be attending the event, but you do need to register to vote. I’m sure all of us would appreciate your votes. The people below offering talks are Sergei Golubchik, Sergei Petrunia, Michael “Monty” Widenius, Gerry Narvaja, Serge Frezefond, Anders Karlsson, and me, Colin Charles. Thanking you all in advance! cheers, -colin Using and Managing MariaDB https://www.percona.com/live/data-performance-conference-2016/sessions/comp… MariaDB 10.1 - What's New? (*** includes Monty himself! ***) https://www.percona.com/live/data-performance-conference-2016/sessions/mari… Databases in the Hosted Cloud https://www.percona.com/live/data-performance-conference-2016/sessions/data… Best Practices for MySQL High Availability https://www.percona.com/live/data-performance-conference-2016/sessions/best… Choosing a MySQL HA solution today https://www.percona.com/live/data-performance-conference-2016/sessions/choo… MariaDB/MySQL security essentials https://www.percona.com/live/data-performance-conference-2016/sessions/mari… The MySQL Server Ecosystem in 2016 https://www.percona.com/live/data-performance-conference-2016/sessions/mysq… MariaDB Connectors: Fast and Smart with the new protocol optimizations https://www.percona.com/live/data-performance-conference-2016/sessions/mari… MariaDB 10.1 Security: Validation, Authentication, Encryption https://www.percona.com/live/data-performance-conference-2016/sessions/mari… Window functions in MariaDB https://www.percona.com/live/data-performance-conference-2016/sessions/wind… Exploring MariaDB Query Optimizer with ANALYZE for statements https://www.percona.com/live/data-performance-conference-2016/sessions/expl… Window functions in MariaDB https://www.percona.com/live/data-performance-conference-2016/sessions/wind… Exploring MariaDB Query Optimizer with ANALYZE for statements https://www.percona.com/live/data-performance-conference-2016/sessions/expl… The MariaDB CONNECT Storage Engine to simplify heterogeneous data access https://www.percona.com/live/data-performance-conference-2016/sessions/mari… Low Impact Monitoring https://www.percona.com/live/data-performance-conference-2016/sessions/low-… MariaDB on Power8: https://www.percona.com/live/data-performance-conference-2016/sessions/ibm-… The good and bad on datatypes in different database systems: https://www.percona.com/live/data-performance-conference-2016/sessions/migr… Character sets and Collations explained: https://www.percona.com/live/data-performance-conference-2016/sessions/char… -- Colin Charles, http://bytebot.net/blog/ twitter: @bytebot | skype: colincharles "First they ignore you, then they laugh at you, then they fight you, then you win." -- Mohandas Gandhi

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