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I'm pleased to announce the release of Spider storage engine version 2.28(beta) and Vertical Partitioning storage engine version 0.17(beta).
Spider is a Storage Engine for database sharding.
http://spiderformysql.com/
Vertical Partitioning is a Storage Engine for vertical partitioning for a table.
http://launchpad.net/vpformysql

Please use the following for downloading binary file.
http://spiderformysql.com/download_spider.html

The main changes in this version are following.
Spider
- Support parallel searching. ("spider_bgs_mode > 0")
The table using the Spider bundled MySQL and table partitioning performs parallel search of each partition. However, parallel search is not performed in the case which does not make all the partitions applicable to search like sequential search with limit.
- Add server parameter "spider_use_default_database" and "spider_remote_default_database".
These parameter is added for using some replication parameters like "binlog-do-db" on data node. "spider_use_default_database=0" is same of previous versions.
- Add table parameter "access_balance".
This parameter is the weight of load balancing for Spider's redundancy feature.
- Add INFORMATION SCHEMA "spider_alloc_mem".
This INFORMATION SCHEMA plugin adds "information_schema.spider_alloc_mem" table for showing Spider's using memory status. "alloc_mem_count" and "free_mem_count" columns in "information_schema.spider_alloc_mem" table express the count of increasing and decreasing memory, so they do not necessarily become the same.
- Add value of 3 to "quick_mode"(table parameter) and "spider_quick_mode"(server parameter).
"quick_mode=3" is the mode of using temporary table for result set from data node. This mode is useful for searching a huge table.

Spider's management table was changed from previous version and add new plugin, please execute "install_spider.sql" for upgrading.

Vertical Partitioning
- Add UDF paramter "suppress_autoinc".
- Add table parameter "allow_bulk_autoinc" and "allow_different_column_type".
- Add server parameter "vp_allow_bulk_autoinc".

handlersocket
Becomes version 1.1.
- Add server parameter "handlersocket_slow_log", "handlersocket_long_exec_time" and "handlersocket_close_table_interval".
"handlersocket_slow_log" is logging handlersocket request with slow (spend over "handlersocket_long_exec_time" micro second) response into slow log with "slow_query_log=on".
"handlersocket_close_table_interval" is interval of closing table internally for releasing meta data lock for executing like "alter table". You can use this parameter "handlersocket_close_table_interval=0" (doesn't close) for normally and only change this parameter for executing like "alter table".
These parameters are global parameter and you can change them from SQL interface.

Please see "99_change_logs.txt" in the download documents for checking other changes.

Thanks to Takafumi, Yukihiro, Jung, Adrian, leechangyeol, liuyanhong, Hisazumi, Hideyuki, Keisuke for bug reporting.
Thanks to Akira for your advice.

Enjoy!
PlanetMySQL Voting: Vote UP / Vote DOWN

I'm pleased to announce the release of Spider storage engine version 2.28(beta) and Vertical Partitioning storage engine version 0.17(beta).
Spider is a Storage Engine for database sharding.
http://spiderformysql.com/
Vertical Partitioning is a Storage Engine for vertical partitioning for a table.
http://launchpad.net/vpformysql

Please use the following for downloading binary file.
http://spiderformysql.com/download_spider.html

The main changes in this version are following.
Spider
- Support parallel searching. ("spider_bgs_mode > 0")
The table using the Spider bundled MySQL and table partitioning performs parallel search of each partition. However, parallel search is not performed in the case which does not make all the partitions applicable to search like sequential search with limit.
- Add server parameter "spider_use_default_database" and "spider_remote_default_database".
These parameter is added for using some replication parameters like "binlog-do-db" on data node. "spider_use_default_database=0" is same of previous versions.
- Add table parameter "access_balance".
This parameter is the weight of load balancing for Spider's redundancy feature.
- Add INFORMATION SCHEMA "spider_alloc_mem".
This INFORMATION SCHEMA plugin adds "information_schema.spider_alloc_mem" table for showing Spider's using memory status. "alloc_mem_count" and "free_mem_count" columns in "information_schema.spider_alloc_mem" table express the count of increasing and decreasing memory, so they do not necessarily become the same.
- Add value of 3 to "quick_mode"(table parameter) and "spider_quick_mode"(server parameter).
"quick_mode=3" is the mode of using temporary table for result set from data node. This mode is useful for searching a huge table.

Spider's management table was changed from previous version and add new plugin, please execute "install_spider.sql" for upgrading.

Vertical Partitioning
- Add UDF paramter "suppress_autoinc".
- Add table parameter "allow_bulk_autoinc" and "allow_different_column_type".
- Add server parameter "vp_allow_bulk_autoinc".

handlersocket
Becomes version 1.1.
- Add server parameter "handlersocket_slow_log", "handlersocket_long_exec_time" and "handlersocket_close_table_interval".
"handlersocket_slow_log" is logging handlersocket request with slow (spend over "handlersocket_long_exec_time" micro second) response into slow log with "slow_query_log=on".
"handlersocket_close_table_interval" is interval of closing table internally for releasing meta data lock for executing like "alter table". You can use this parameter "handlersocket_close_table_interval=0" (doesn't close) for normally and only change this parameter for executing like "alter table".
These parameters are global parameter and you can change them from SQL interface.

Please see "99_change_logs.txt" in the download documents for checking other changes.

Thanks to Takafumi, Yukihiro, Jung, Adrian, leechangyeol, liuyanhong, Hisazumi, Hideyuki, Keisuke for bug reporting.
Thanks to Akira for your advice.

Enjoy!
PlanetMySQL Voting: Vote UP / Vote DOWN

I'm pleased to announce the release of Spider storage engine version 2.27(beta) and Vertical Partitioning storage engine version 0.16(beta).
Spider is a Storage Engine for database sharding.
http://spiderformysql.com/
Vertical Partitioning is a Storage Engine for vertical partitioning for a table.
http://launchpad.net/vpformysql

Please use the following for downloading binary file.
http://spiderformysql.com/download_spider.html

The main changes in this version are following.
Q4M is bundled for Linux 64bit.
  Bundled Q4M supports replication, but please use it carefully.

Spider
- Support R-Tree index.
- Support direct updating for SQL access.
- Support handlersocket increment and decrement.
- Change table parameter from "net_timeout" to "connect_timeout", "net_read_timeout" and "net_write_timeout".
- Change server parameter from "spider_net_timeout" to "spider_connect_timeout", "spider_net_read_timeout" and "spider_net_write_timeout".
- Add UDF paramter "access_mode". "spider_direct_sql" support handlersocket access.
- Add server parameter "spider_hs_ping_interval", "spider_error_read_mode" and "spider_error_write_mode".
- Add table parameter "hs_write_to_read", "error_read_mode" and "error_write_mode".
- Performance improvement for "COUNT(*)", "MAX" and "MIN" without clause.
Note
- Change parameter from "net_timeout" and "spider_net_timeout" to "connect_timeout", "net_read_timeout", "net_write_timeout", "spider_connect_timeout", "spider_net_read_timeout" and "spider_net_write_timeout" from this version.
- From this version, you can't compile with static link option for Spider.

Vertical Partitioning
- Support R-Tree index.
- Support direct updating.
- Support handlersocket increment and decrement.
Note
- From this version, you can't compile with static link option for VP.

handlersocket
- Add server parameter "handlersocket_general_log".
  Logging handlersocket request into general log with "general_log=on". This parameter is global parameter and you can change it from SQL interface.

Please see "99_change_logs.txt" in the download documents for checking other changes.

Enjoy!
PlanetMySQL Voting: Vote UP / Vote DOWN

I'm pleased to announce the release of Spider storage engine version 2.23(beta) and Vertical Partitioning storage engine version 0.12(beta).
Spider is a Storage Engine for database sharding.
http://spiderformysql.com/
Vertical Partitioning is a Storage Engine for vertical partitioning for a table.
http://launchpad.net/vpformysql

The main changes in this version are following.
Spider
- Add server parameter "spider_udf_ct_bulk_insert_interval" and "spider_udf_ct_bulk_insert_rows".

Vertical Partitioning
  This release is bug fix release.

Please see "99_change_logs.txt" in the download documents for checking other changes.

Thanks to Gen, Yoshihiko, Satoko and Makoto for testing for clustering and online schema changing.
Thanks to Frederic for bug report.

Enjoy!
PlanetMySQL Voting: Vote UP / Vote DOWN

I'm pleased to announce the release of Spider storage engine version 2.22(beta), Vertical Partitioning storage engine version 0.11(beta) and BKA-for-ha_partition version 0.3.
Spider is a Storage Engine for database sharding.
http://spiderformysql.com/
Vertical Partitioning is a Storage Engine for vertical partitioning for a table.
http://launchpad.net/vpformysql
BKA-for-ha_partition is a patch file of supporting "Batched Key Access" for table partitioning feature.
http://launchpad.net/partitionmrrformysql

The main changes in this version are following.
Spider
- MS Windows support.
- Add UDF "spider_copy_tables".
  Spider HA feature is now available!

Vertical Partitioning
- MS Windows support.

Pathced MySQL source code and compiled MySQL binary are available from this release.

Please see "99_change_logs.txt" in the download documents for checking other changes.
Thanks to Toru for working for supporting Windows.

Enjoy!
PlanetMySQL Voting: Vote UP / Vote DOWN

I'm pleased to announce the release of Spider storage engine version 2.20(beta), Vertical Partitioning storage engine version 0.10(beta) and BKA-for-ha_partition version 0.2.
Spider is a Storage Engine for database sharding.
http://spiderformysql.com/
Vertical Partitioning is a Storage Engine for vertical partitioning for a table.
http://launchpad.net/vpformysql
BKA-for-ha_partition is a patch file of supporting "Batched Key Access" for table partitioning feature.
http://launchpad.net/partitionmrrformysql

The main changes in this version are following.
Spider
- "spider_multi_split_read" supports dividing condition count.
From this release, there is "install_spider.sql" file for installing and updating Spider. Please use this file.

Vertical Partitioning
- Support "Batched Key Access".
  This feature is now available on MariaDB 5.3 with "join_cache_level=6 and more".

Please see "99_change_logs.txt" in the download documents for checking other changes.

Enjoy!
PlanetMySQL Voting: Vote UP / Vote DOWN

I'm pleased to announce the release of Spider storage engine version 2.16(beta) and Vertical Partitioning storage engine version 0.9(beta).
Spider is a Storage Engine for database sharding.
http://spiderformysql.com/
Vertical Partitioning is a Storage Engine for vertical partitioning for a table.
http://launchpad.net/vpformysql

The main changes in this version are following.
(This release for Vertical Partitioning is a bug fix release)
- Add table parameter "semi_split_read".
- Add server parameter "spider_semi_split_read".
  This parameters are for searching performance improvement.

Please see "99_change_logs.txt" in the download documents for checking other changes.

Enjoy!
PlanetMySQL Voting: Vote UP / Vote DOWN

I'm pleased to announce the release of Vertical Partitioning storage engine version 0.8(alpha).
Vertical Partitioning is a Storage Engine for vertical partitioning for a table.
http://launchpad.net/vpformysql

The main changes in this version are following.
This release is bug fix release.

Please see "99_change_logs.txt" in the download documents for more detail.

Enjoy!
PlanetMySQL Voting: Vote UP / Vote DOWN

I started creating "Engine Independent Test".
http://launchpad.net/engineindependenttestformysql

This test aims to be testable with all storage engines.
There is following wiki but test was not created yet.
http://forge.mysql.com/wiki/EngineIndependentTestSuite
I think this test is need for Storage Engine Developers(including me).
Additionally, I already released 2 Storage Engines so I felt needing this test strongly.
So I started creating "Engine Independent Test".

Please tell me without hesitate if you have a demand.


I'm pleased to announce the release of Vertical Partitioning storage engine version 0.7(alpha).
Vertical Partitioning is a Storage Engine for vertical partitioning for a table.
http://launchpad.net/vpformysql

The main changes in this version are following.
  MariaDB support.

Please see "99_change_logs.txt" in the download documents for checking other changes.

Please enjoy and go forward!
PlanetMySQL Voting: Vote UP / Vote DOWN

I'm pleased to announce the release of Vertical Partitioning storage engine version 0.6(alpha).
Vertical Partitioning is a Storage Engine for vertical partitioning for a table.
http://launchpad.net/vpformysql

The main changes in this version are following.
- Add UDF "vp_copy_tables".
  This UDF is used for syncronizing Vertical Partitioning's child table data from old child tables to new added child tables.

- Add table parameter "choose_ignore_table_list", "choose_ignore_table_list_for_lock" and "zero_record_update_mode".
  This parameters are used for avoiding to use new added child tables at searching operation and separating child tables for searching with lock and without lock.

- Add server parameter "vp_udf_ct_bulk_insert_interval" and "vp_udf_ct_bulk_insert_rows".
  This parameters are used for changing the load of updating immediately from vp_copy_tables.

Example
-------------------------------------------------------------------------------
Initial tables:
    create table tbl_a(
      col_a int not null,
      col_b varchar(20),
      col_c int not null,
      primary key(col_a),
      key idx1(col_c, col_a)
    )engine=VP comment='tnl "tbl_b tbl_c"';

Add a table:
    alter table tbl_a comment='tnl "tbl_b tbl_c tbl_d", cit "3", cil "3", zru "1"';

Copy table data from tbl_c to tbl_d:
    select vp_copy_tables("tbl_a", "tbl_c", "tbl_d");

Finalize:
    alter table tbl_a comment='tnl "tbl_b tbl_c tbl_d"';
-------------------------------------------------------------------------------

Please see "99_change_logs.txt" in the download documents for checking other changes.

Enjoy!
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