Re: An I/O error occured while sending to the backend

On Wed, 2022-11-16 at 13:04 +0800, gzh wrote:
> I have developed an application using the jdbc driver and 
> connecting to a postgresql database .
> The application mainly does the following two things：
> ① read data from the CSV file and insert it into the database
> ② perform a database query
> In my application, the above ① and ② are executed asynchronously.
> Everything was working fine until I increase the amount of CSV data to more than 1000.
> Randomly they receive an error, the stack trace of which is below.
>  
> Caused by: java.net.SocketTimeoutException: Read timed out
> at java.base/java.net.SocketInputStream.socketRead0(Native Method)
> at java.base/java.net.SocketInputStream.socketRead(SocketInputStream.java:115)
> at java.base/java.net.SocketInputStream.read(SocketInputStream.java:168)
> at java.base/java.net.SocketInputStream.read(SocketInputStream.java:140)
> at java.base/sun.security.ssl.SSLSocketInputRecord.read(SSLSocketInputRecord.java:478)
> at java.base/sun.security.ssl.SSLSocketInputRecord.readHeader(SSLSocketInputRecord.java:472)
> at java.base/sun.security.ssl.SSLSocketInputRecord.bytesInCompletePacket(SSLSocketInputRecord.java:70)
> at java.base/sun.security.ssl.SSLSocketImpl.readApplicationRecord(SSLSocketImpl.java:1454)
> at java.base/sun.security.ssl.SSLSocketImpl$AppInputStream.read(SSLSocketImpl.java:1065)
> at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:161)

Well, set a longer socket timeout if you need to run long SQL statements, or tune
those statements to be faster.

https://jdbc.postgresql.org/documentation/use/#connection-parameters has more
information about "socketTimeout".

Yours,
Laurenz Albe