Java Sql Out Of Memory Error
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Java.sql.sqlexception: Out Of Memory Mysql
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Java Jdbc Large Result Set
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Resultset Setfetchsize
OOM (Out of memory) error when retrieving all records from huge table? up vote 13 down vote favorite 4 I am given a task to convert a huge table to custom XML file. I will be using Java for this job. If I simply issue a "SELECT * FROM customer", it may return huge amount of data that eventually causing OOM. I wonder, is there jdbc streaming resultset a way i can process the record immediately once it become available, and remove the record from memory after that during sql retrieving process? --- edited on 13 Jul 2009 Let me elaborate my question. I have 1 db server and 1 application server. When I issue a select query in application, the data will travel from db server to app server. I believe (correct me if I am wrong) ResultSet will need to wait until receiving all records in the query. Even if we set fetch size as 4, for a 1000-record table, we still end up having 1000 records in heap memory of app server, is it correct? Fetch size only affect the number of round trip from/to db server. My question is, how to start processing on that 4 (or any number) records immediately after it's arrival to app server, and dispose it to free up memory in app server? java sql out-of-memory large-data-volumes share|improve this question edited Feb 1 '14 at 20:26 Kara 3,16873147 asked Jul 10 '09 at 4:45 janetsmith 2,47373357 Which SQL server are you using (i.e. MS, Oracle, MySql, etc.)? There are different
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn scrollable resultset more about Stack Overflow the company Business Learn more about hiring developers or java.lang.outofmemoryerror: gc overhead limit exceeded posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up What do I have to do to avoid error of http://stackoverflow.com/questions/1107732/how-to-avoid-oom-out-of-memory-error-when-retrieving-all-records-from-huge-tab “out of memory”, when connection by jdbc with sqlite3 database? up vote 6 down vote favorite 1 What do I have to do to avoid error of "out of memory", when connection by jdbc with sqlite3 database? java.sql.SQLException: out of memory at org.sqlite.DB.throwex(DB.java:288) at org.sqlite.NestedDB._open(NestedDB.java:73) at org.sqlite.DB.open(DB.java:77) at org.sqlite.Conn.
log in tour help Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have http://dba.stackexchange.com/questions/1927/why-does-mysql-say-im-out-of-memory Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us https://groups.google.com/d/topic/xerial/AKGaCuF8th0 Database Administrators Questions Tags Users Badges Unanswered Ask Question _ Database Administrators Stack Exchange is a question and answer site for database professionals who wish to improve their out of database skills and learn from others in the community. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Why does MySQL say I'm out of memory? up vote 8 down vote favorite 7 I was out of memory trying to execute a fairly large INSERT...SELECT in MySQL with JDBC, and I got the following exception: Exception in thread "main" java.sql.SQLException: Out of memory (Needed 1073741824 bytes) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073) Since I'm not actually returning a ResultSet object, I thought the Java heap space shouldn't be an issue. However, I tried to up it anyway and it did no good. I then tried to execute the statement in MySQL Workbench and I got essentially the same thing: Error Code 5: Out of memory (Needed 1073741816 bytes) I should have plenty of RAM to complete these operations (enough to fit the whole table I'm selecting from), but I'm guessing there are various settings I need to tweak to take advantage of all my memory. I'm running an Amazon EC2 High Memory Double Extra Large Instance with a Windows Server 2008 AMI. I've tried fiddling with the my.ini file to use better settings, but for all I know I might have made things worse. Here's a dump of that file: [client]
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