Hi,
I upgrade confluence version v6.4.2 to v6.8 last month.
I use embedded database because contents are so small.
After upgraded, backup file does not created.
[question 1]
Do I must use external database for example postgreSQL?
[question 2]
Why don't backup file created?
I can find some error at catalina.out log file
================================
03-May-2018 00:34:09.059 INFO [http-nio-8090-exec-2] com.sun.jersey.server.impl.application.WebApplicationImpl._initiate Initiating Jersey application, version 'Jersey: 1.19.4 05/24/2017 03:20 PM'
03-May-2018 00:34:40.887 WARNING [ContainerBackgroundProcessor[StandardEngine[Standalone]]] org.apache.catalina.valves.StuckThreadDetectionValve.notifyStuckThreadDetected Thread "http-nio-8090-exec-9" (id=345) has been active for 69,151 milliseconds (since 5/3/18 12:33 AM) to serve the same request for http://doc.brighticsiot.samsungsds.com:8090/admin/dobackup.action?atl_token=30f56ffb88296029a119c9f5eb2882384b6e2ce5&archiveBackup=true&backupAttachments=true&backup=Back+Up and may be stuck (configured threshold for this StuckThreadDetectionValve is 60 seconds). There is/are 2 thread(s) in total that are monitored by this Valve and may be stuck.
java.lang.Throwable
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:111)
at java.net.SocketOutputStream.write(SocketOutputStream.java:155)
at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
at java.io.DataOutputStream.flush(DataOutputStream.java:123)
at org.h2.value.Transfer.flush(Transfer.java:97)
at org.h2.engine.SessionRemote.done(SessionRemote.java:598)
at org.h2.command.CommandRemote.prepare(CommandRemote.java:69)
at org.h2.command.CommandRemote.(CommandRemote.java:46)
at org.h2.engine.SessionRemote.prepareCommand(SessionRemote.java:476)
at org.h2.jdbc.JdbcConnection.prepareCommand(JdbcConnection.java:1188)
at org.h2.jdbc.JdbcPreparedStatement.(JdbcPreparedStatement.java:73)
at org.h2.jdbc.JdbcConnection.prepareStatement(JdbcConnection.java:276)
at com.mchange.v2.c3p0.impl.NewProxyConnection.prepareStatement(NewProxyConnection.java:387)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$5.doPrepare(StatementPreparerImpl.java:146)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:172)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareQueryStatement(StatementPreparerImpl.java:148)
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.prepareQueryStatement(AbstractLoadPlanBasedLoader.java:241)
at org.hibernate.loader.plan.exec.internal.AbstractLoadPlanBasedLoader.executeQueryStatement(AbstractLoadPlanBasedLoader.java:185)
