How To Resolve Network Error Tcp_error
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Network Error (tcp_error) Windows 7
network error(TCP_ERROR) in BIRT? up vote 0 down vote favorite I am new to birt and would like to see if it meets our reporting needs. I am trying to use BIRT from my Windows 7 laptop to create a report which accesses a MySQL database. I am using the com.mysql.jdbc.Driver driver and connecting to the mysql database using the URL: jdbc:mysql://servername:3306/databasename and the test network error (tcp_error) bluecoat proxy connection is successful and event previewing the data from the Data Set is successful but when I try and run the report I get the error Network Error (tcp_error) A communication error occurred: "Operation timed out" The Web Server may be down, too busy, or experiencing other problems preventing it from responding to requests. You may wish to try again at a later time. Has anyone seen this before and if so, how do I overcome this? mysql eclipse networking tcp birt share|improve this question edited Sep 6 '13 at 5:19 asked Sep 6 '13 at 5:03 codemaniac143 1651216 this type error occurs when your proxy settings are not properly set. also if your proxy settings are okey then you need to verify the port number. So contact to network team and ask for proper proxy. It will definitely solve your problem. I hope you have got the answer thank you –codemaniac143 Sep 6 '13 at 6:30 Another solution Open the Configuration Panel, Network connections. Select the network connection that's giving you troubles. Right click on it, select properties. Remove QOS service. Check the TCP/IP settings: if they're setup by D
This Site Careers Other all forums Forum: JDBC and Relational Databases How to Resolve Network Error (tcp_error) for queries taking a long time vipul javeri Greenhorn Posts: 10 posted 4 years ago Hi, There is a jsp from which a user submits a request for some data using Submit button. Internally we fire network error (tcp_error) connection refused a sql query, as the data is so large that the query takes almost 12mins to
Network Error (tcp_error) A Communication Error Occurred Connection Refused
execute. Now the prob is in this mean time we get Network Error (tcp_error) indicating the server is busy or an internal server error. How to
Network Error (tcp_error) Iis
resolve this issue? Please help Karthik Shiraly Bartender Posts: 1210 25 I like... posted 4 years ago - Does your user really need all those rows in one go? You can think of paginating and using LIMIT clauses to limit how http://stackoverflow.com/questions/18650239/how-to-get-rid-of-network-errortcp-error-in-birt much data is fetched. - Are you sending "select *" queries ? Select queries should ask for only columns which the app really needs for a use case. - If the query has joins and where clauses, restructure the query so that the most restrictive subsets are selected first. - Your DB will have a explain plan command. Go through the explain plan documentation for your DB. The plan describes how your DB is going to process your query, and approximate rows it might hit https://coderanch.com/t/558302/JDBC/databases/Resolve-Network-Error-tcp-error for each stage. You can use it to find out the clauses or joins which hit too many rows. Iteratively create additional table indexes and reexamine explain plan, until it can't be optimized further. Usually, this step can improve query times dramatically. - Increase your DB memory cache sizes in its configuration. More the memory you give it, more it can cache and return results from memory without hitting the slower storage drive. - Finally, you can increase web server socket timeouts as a last ditch, but it's a bad idea. The focus should be on reducing that 12 minutes to 30 secs or 1 minute, rather than some hack to accommodate 12 minutes. After all that, you may find that the query still too slow, perhaps under load when many users are trying. Then it's time to solve it at the architectural level, using something like memcached. The idea is same - cache as much as possible in memory, if you want quick response times. vipul javeri Greenhorn Posts: 10 posted 4 years ago I have tried with indexes n other logical optimization and the query time is reduced to 7min. But it is still not sufficient ... ne solutions ?? Karthik Shiraly Bartender Posts: 1210 25 I like... posted 4 years ago Hopefully you're using connection pooling and prepared statements everywhere? It's usually the case, but just checking. They won't improve it much, but if you're in a situation where every little bit helps, then these would
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