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简介:everything in life is random! (personal and work)
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“Venu Anuganti Blog”的内容更新
累计:34 篇(自 2009-07-20 起)
更新:约1篇/月,最后更新363 天前
Venu Anuganti Blog
recently am part of zynga‘s database team as i was pretty much impressed with company’s database usage. as everyone knows how popular zynga games like farmville, cafe world, mafia wars, poker, frontierville, fishville, petville and treasure island etc are. zynga launched yet another new game today called cityville along with series of acquisitions (lat... (303 天前)
Venu Anuganti Blog
even though data warehouse is picking very rapidly in the last year or so, but few companies who are already made a right mark in the right time could not take the market share that easily due to number of reasons. even though am not a marketing guy to go over, but some of the [...]... (303 天前)
Venu Anuganti Blog
last week i was working on ec2 mysql server where one of the slave is taking lot of time to catch-up; and only job that is running on that server is mapreduce job to access innodb tables for read-only meta data. and debugging it further, noticed that every access to database server is serialized with [...]... (303 天前)
Venu Anuganti Blog
last month, i blogged about a case involving innodb, where all threads acting on innodb tables completely stuck for about few hours doing nothing; until we found a way to get around and make the threads to run and do the actual work. there are few more cases where the server can get into pause [...]... (303 天前)
Venu Anuganti Blog
even though the name read_buffer_size implies that the variable controls only read buffering, but it actually does dual purpose by providing sequential io buffering for both reads and writes. in case of write buffering, it groups the sequential writes until read_buffer_size(it is min(read_buffer_size, 8k)); and then actually does the physical write once ... (303 天前)
Venu Anuganti Blog
if you have any open transaction(s); and if there is any statement that causes implicit commit, especially ddl statements; then the current active transaction will be committed and transaction will be closed automatically. here is the list of statements that causes implicit commit in mysql. but other day; we had an issue in production as [...]... (303 天前)
Venu Anuganti Blog
today morning, we had a weird issue in one of the staging olap server (etl); where all the innodb threads were locked and waiting on a signal condition for about 3-4 hours without performing any work related to innodb until we noticed it. processlist indicates every thread is in active state mode like sending data, [...]... (303 天前)
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