SQL Error [08006]: An I/O error occurred while sending to the backend.

[kylewhittaker17]

System information:

• Windows 10 Enterprise 1909
• DBeaver version 7.3.5

Describe the problem you're observing:

Not sure exactly what the issue is, but if a Query takes longer than 2 mins I get this error

Error Log:
org.jkiss.dbeaver.model.sql.DBSQLException: SQL Error [08006]: An I/O error occurred while sending to the backend.
at org.jkiss.dbeaver.model.impl.jdbc.exec.JDBCStatementImpl.executeStatement(JDBCStatementImpl.java:133)
at org.jkiss.dbeaver.ui.editors.sql.execute.SQLQueryJob.executeStatement(SQLQueryJob.java:509)
at org.jkiss.dbeaver.ui.editors.sql.execute.SQLQueryJob.lambda$0(SQLQueryJob.java:440)
at org.jkiss.dbeaver.model.exec.DBExecUtils.tryExecuteRecover(DBExecUtils.java:168)
at org.jkiss.dbeaver.ui.editors.sql.execute.SQLQueryJob.executeSingleQuery(SQLQueryJob.java:427)
at org.jkiss.dbeaver.ui.editors.sql.execute.SQLQueryJob.extractData(SQLQueryJob.java:812)
at org.jkiss.dbeaver.ui.editors.sql.SQLEditor$QueryResultsContainer.readData(SQLEditor.java:3226)
at org.jkiss.dbeaver.ui.controls.resultset.ResultSetJobDataRead.lambda$0(ResultSetJobDataRead.java:118)
at org.jkiss.dbeaver.model.exec.DBExecUtils.tryExecuteRecover(DBExecUtils.java:168)
at org.jkiss.dbeaver.ui.controls.resultset.ResultSetJobDataRead.run(ResultSetJobDataRead.java:116)
at org.jkiss.dbeaver.ui.controls.resultset.ResultSetViewer$ResultSetDataPumpJob.run(ResultSetViewer.java:4516)
at org.jkiss.dbeaver.model.runtime.AbstractJob.run(AbstractJob.java:105)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Caused by: org.postgresql.util.PSQLException: An I/O error occurred while sending to the backend.
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:335)
at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:441)
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:365)
at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:307)
at org.postgresql.jdbc.PgStatement.executeCachedSql(PgStatement.java:293)
at org.postgresql.jdbc.PgStatement.executeWithFlags(PgStatement.java:270)
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:266)
at org.jkiss.dbeaver.model.impl.jdbc.exec.JDBCStatementImpl.execute(JDBCStatementImpl.java:327)
at org.jkiss.dbeaver.model.impl.jdbc.exec.JDBCStatementImpl.executeStatement(JDBCStatementImpl.java:130)
... 12 more
Caused by: java.io.EOFException
at org.postgresql.core.PGStream.receiveChar(PGStream.java:308)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1952)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:308)
... 20 more

[uslss]

Hi @kylewhittaker17 ,
could you try to change keep-alive in connection properties and check if it helps?

[kylewhittaker17]

Hi @uslss,
Thanks for the tip, I set it to 10,000 and still the error comes at around 180s into the query.
Do you have any other suggestions?

[uslss]

@kylewhittaker17 could you try to make keep-alive interval less (e.g. 100)?

[balvpro]

I got the same issue with a large query on Windows env.
DB Server: Postgresql 9.6
Windows 10 Enterprise 16GB RAM, Core i5
DBeaver 21.1.4

No such issue on Mac with same query. Any idea to help?

[songflows]

Have anybody resolve this problem?