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Has a nasty bug that sometimes under certain load conditions slows the SQL network responses to a crawl JDBC -> SQL Server (version after 2012) -> On Windows Server 2012 -> hosted on VMWare -> using vmxnet3 Wasn't exactly our situation but it was very close - and yes, the netsh command suggested in that thread fixed it.īasically it seems that (bug may be fixed after the VMWare May 2016 update) Things seemed to be fine for a few weeks after the cutover but eventually we started getting problem reports of slowness for this one application - the database server wasn't under load and everything was a mystery. This tutorial uses the Microsoft JDBC Driver 4.0 for Microsoft SQL Server to connect. We had recently (ish) moved the SQL backend from a physical server to a VM so we could use zert0. It runs on weblogic and uses jdbc to connect to a SQL Server backend. I was trying to find out why a 3rd party application was sometimes showing enormous (> 12 second) latency when paging though web pages. Just in case anyone else stumbles on this thread like I did - here is my tuppence Microsoft JDBC Driver For SQL Server Authentication Library For Windows » 9.4.0. MyURL += " disableStatementPooling=true" MyURL += " sendStringParametersAsUnicode=false" Is this something I have coded wrong or an actual problem. See commented out linesĪctivity Monitor on SQL Server can be used to see the memory slowly rising If executeQuery is called twice on the Prepared Statement, then there is no memory leak.
#Microsoft jdbc driver 4 code
The following Java Code generates a connection that constantly uses more and more memory, until either the loop runs out or the server runs out of resources. Extended and custom support options are not available for the Microsoft JDBC Driver. Mainstream support is defined on the Microsoft support lifecycle website. 25-May-21 06:39 Always good 10/10 07-May-21 09:45 thankssssssss 02-Apr-21 11:35 Great, many thanks for microsoft sql server jdbc 18-Feb-21 06:01 It looks like you’ve put a lot of work into this. JDBC driver versions 4.x, 6.x, 7.x, 8.x, and 9.x have five-year Mainstream support from the driver release date. Downloaded: 82,039 times Last Time: 22 October 2021.
#Microsoft jdbc driver 4 download
Click button to download driver-microsoft-sql-server-jdbc.exe. This is an issue only when (selectMethod=direct). Weve got up to date version of Driver microsoft sql server jdbc. Microsoft JDBC Driver (4.2 & 6) - Prepared Statements with only a single query leak memory on server