Windchill takes long time to startup

The information you mentioned is all normal

We have rebuilt the wtgroup table before, is it related to this?

Moreover, there is this information in the log

at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3867)

 - locked <0x00000003c74090c8> (a oracle.jdbc.driver.T4CConnection)

 at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeQuery(OraclePreparedStatementWrapper.java:1502)

 at wt.pds.AbstractResultCursor.executeQuery(AbstractResultCursor.java:575)

 at wt.pds.AbstractResultCursor.executeQuery(AbstractResultCursor.java:539)

 at wt.pds.BasicResultCursor.getNextResultSet(BasicResultCursor.java:282)

 at wt.pds.BasicResultCursor.advance(BasicResultCursor.java:234)

 at wt.pds.BasicResultCursor.next(BasicResultCursor.java:82)