MySql with EJB CMP
Hello all , Can anybody tell me what to do to setup MySql with EJB ? It is running very fine for creation of the CMPs but it is not getting the DATA while executing FindByPrimaryKey option , it is able to create the instance of the Interface but could not get the DATA from it. Neelesh - Original Message - From: "Bernhard Fuerst" [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Sunday, April 01, 2001 3:07 PM Subject: mySQL and MacOS X: very slow Hi all, I benchmarked mySQL 3.23.36 on the new MacOS X and got the following results: ATIS : 101.00 alter-table: 767.00 big-tables :90.00 connect: 178.00 create : 957.00 insert : 38029.00 select : +3274.00 wisconsin : 307.00 That's too slow especially the time it needs for inserts (compared to http://www.mysql.com/information/benchmark-results/result-mysql-platform-rel ative.html) Do anyone has an idea why it is so slow?? Here some config details: The machine is a PowerBook G3 (Firewire) with 400 Mhz PowerPC G3 and 265 MB RAM. When I run the benchmark there was approximately 150 MB of free RAM (reported by 'top'). I did nothing on the machine in this time. I configured and compiled mySQL with the following parameters: CFLAGS="-O4 -fomit-frame-pointer" \ CXXFLAGS="-O4 -fomit-frame-pointer -felide-constructors -fno-exceptions -fno-rtti" \ ./configure \ --prefix=/usr/local/mysql \ --with-mysqld-ldflags=-all-static \ --without-debug \ --with-extra-charset=complex \ --enable-assembler mysqld is configured as follows: ansi_mode | OFF back_log| 50 basedir | /usr/local/ binlog_cache_size | 32768 character_set | latin1 character_sets | latin1 dec8 dos german1 hp8 koi8_ru latin2 swe7 usa7 cp1251 danish hebrew win1251 estonia hungarian koi8_ukr win1251ukr greek win1250 croat cp1257 latin5 | concurrent_insert | ON connect_timeout | 5 datadir | /usr/local/var/ delay_key_write | ON delayed_insert_limit| 100 delayed_insert_timeout | 300 delayed_queue_size | 1000 flush | OFF flush_time | 0 have_bdb| NO have_gemini | NO have_innobase | NO have_isam | YES have_raid | NO have_ssl| NO init_file | interactive_timeout | 28800 join_buffer_size| 131072 key_buffer_size | 8388600 language| /usr/local/share/mysql/english/ large_files_support | ON locked_in_memory| OFF log | OFF log_update | OFF log_bin | OFF log_slave_updates | OFF long_query_time | 10 low_priority_updates| OFF lower_case_table_names | 0 max_allowed_packet | 1048576 max_binlog_cache_size | 4294967295 max_binlog_size | 1073741824 max_connections | 100 max_connect_errors | 10 max_delayed_threads | 20 max_heap_table_size | 16777216 max_join_size | 4294967295 max_sort_length | 1024 max_user_connections| 0 max_tmp_tables | 32 max_write_lock_count| 4294967295 myisam_recover_options | OFF myisam_sort_buffer_size | 8388608 net_buffer_length | 16384 net_read_timeout| 30 net_retry_count | 10 net_write_timeout | 60 open_files_limit| 0 pid_file| /usr/local/var/localhost.pid port| 3306 protocol_version| 10 record_buffer | 131072 query_buffer_size | 0 safe_show_database | OFF server_id | 0 skip_locking| OFF skip_networking | OFF skip_show_database | OFF slow_launch_time| 2 socket | /tmp/mysql.sock sort_buffer | 2097144 table_cache | 64 table_type | MYISAM thread_cache_size | 0 thread_stack| 65536 transaction_isolation | READ-COMMITTED tmp_table_size | 1048576 tmpdir | /var/tmp/ version | 3.23.36 wait_timeout| 28800 Thanks, Bernhard - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Signal 11 on Innobase table range queries
Hello All of you , can you please tell me how to configure WEBLOGIC server with MYSQL database . It is giving findByPrimaryKey error on my CMPs Thanks in adcance Neelesh - Original Message - From: "Michael Widenius" [EMAIL PROTECTED] To: [EMAIL PROTECTED] Cc: "Arne Claassen" [EMAIL PROTECTED]; "Heikki Tuuri" [EMAIL PROTECTED]; [EMAIL PROTECTED] Sent: Monday, March 26, 2001 4:05 PM Subject: Re: Signal 11 on Innobase table range queries Hi! "Jeremy" == Jeremy D Zawodny [EMAIL PROTECTED] writes: Jeremy On Sun, Mar 25, 2001 at 09:52:22PM -0800, Arne Claassen wrote: I've got a reproducable signal 11 death in mysqld using Innobase tables and range queries (at least reproducable on my machine, Redhat 6.2, mysql 3.23.35). Here's how it manifests itself: Create a table with at least 32 columns. Then load a row or two into the table and try to do any query using a range (, , between, in) on the primary key and i get this: mysql select * from foo where id 1 limit 1; Jeremy [snip] Let me know if anyone can reproduce this, as it's quite the nuisance... Jeremy Yep. I've got a similar result here. Jeremy To reproduce you only need one row in the table: cut Thanks for the test case; We will fix this shortly and then release 3.23.36 that will contain the fix for this. Regards, Monty - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
Re: Match Records
Hello ,
Can you please tell me how to use transaction in mysql. I am using mysql
version 3.23.32.
I want to use EJB over it , it is giving problem of transaction as it is not
supporting ENTITY with CMP.
Thanks ,
Neelesh
- Original Message -
From: "Bob Hall" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, March 06, 2001 10:25 AM
Subject: Re: Match Records
I`m trying to find the best method to match records between two tables in
a
MySQL database. But it must match atleast once, so here is a scenario for
you
to think about.
Member - Job, Salary, Location
Jobs - Job, Salary, Location
All values will be enum sets in both tables as follows
Job = enum 'developer','designer','none'
Salary = enum '10K','15K','none'
Location = enum 'usa','uk','none'
Ok so the user has come to the site and I have his Job Salary and
Location
stored, he clicks a link which then performs the search. His values are
as
follows..
Job = developer, Salary = 10K, Location = uk
I want to search the Jobs table and match it with the above, this part I
can
do. The next stage is if it doesn`t find any matches it then finds the
nearest. So if the only record I have in the Jobs table is as follows
Job = developer, Salary = none, Location = uk
How do I go about making it pick up the nearest.
At the moment I am using
SELECT * FROM Jobs where Job='$Job' and Salary='$Salary' and
Location='$Location'
So obviously it won`t match them, anyone wake me up from my slumber and
help
me out with this?
Cheers
Ade
Sir, the following, or some variation, should get you the closest
matches on salary. You can modify or remove the LIMIT clause to get
various numbers of results.
SELECT *, Abs('$Salery' - Salery) AS delta
FROM Jobs
WHERE Job='$Job' AND Location='$Location'
ORDER BY delta LIMIT 1;
For location, you'll have to have some sort of lookup system based
either on longitude and latitude or the British postal codes. The
easiest solution is to let the user handle it; the user does one
search for each location the user thinks is close enough to the ideal
location.
The problem of finding a job title that is close to another job title
is a problem outside of database theory. The US government uses a
numeric coding system for jobs. If the UK government does something
similar, you might be able to use that to make rough comparisons of
job titles. Even if you can find an existing solution that you can
adapt to your needs, you've still got your work cut out for you. An
easier solution might be to allow the user to view the available job
titles (SELECT DISTINCT Job ..., or have a predetermined list of
jobs) and then have your code build a query based on the jobs
selected by the user.
Bob Hall
Know thyself? Absurd direction!
Bubbles bear no introspection. -Khushhal Khan Khatak
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