我正在尝试安装Django 1.4.3,但是当我执行pip install时,pip继续安装Django 1.5版本而不是1.4.3
sudo pip install -I Django==1.4.3
它返回:
Downloading/unpacking Django==1.4.3
Running setup.py egg_info for package Django
warning: no previously-included files matching '__pycache__' found under directory '*'
warning: no previously-included files matching '*.py[co]' found under directory '*'
=== >>>> Requested Django==1.4.3, but installing version 1.5 <<<< ====
Installing collected packages: Django
Found existing installation: Django 1.5
Uninstalling Django:
Successfully uninstalled Django
Running setup.py install for Django
warning: no previously-included files matching '__pycache__' found under directory '*'
warning: no previously-included …我有一些麻烦要让@ManyToOne关联加载lazilly.我正在使用fetch = LAZY但是当主键列没有进行连接时它不起作用.
我知道这个问题已被提出但我认为没有得到妥善回答,因此我提供了详细信息以澄清问题.
这是我的模特:
DummyB -> DummyA
这些是表格:
create table dummyA (
id number(18,0), --pk
name varchar2(20) -- unique field
);
create table dummyB (
id number(18,0),
dummya_id number(18,0),
dummya_name varchar2(20)
);
这些是实体:
@Entity
public class DummyA implements Serializable {
private Long id;
private String name;
@Id
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = …我正在尝试使用fabric连接到windows azure实例,但是尽管我配置了ssh conection来执行命令,但Fabric仍然要求输入密码.
这是我的结构文件:
def azure1():
env.hosts = ['host.cloudapp.net:60770']
env.user = 'adminuser'
env.key_filename = './azure.key'
def what_is_my_name():
run('whoami')
我把它当作:
fab -f fabfile.py azure1 what_is_my_name
要么
fab -k -f fabfile.py -i azure.key -H adminuser@host.cloudapp.net:60770 -p password what_is_my_name
但没有任何效果,尽管我输入正确,它仍然要求用户密码.
Executing task 'what_is_my_name'
run: whoami
Login password for 'adminuser':
Login password for 'adminuser':
Login password for 'adminuser':
Login password for 'adminuser':
如果我尝试直接连接ssh,它可以很好地工作.
ssh -i azure.key -p 60770 adminuser@host.cloudapp.net
我已经尝试过在其他问题中给出的建议(q1 q2 q3),但没有任何效果.
知道我做错了什么吗？
谢谢
我们在 payara 5.2020 服务器上有一个 J2EE 应用程序，它执行长时间运行的查询（PL/SQL 执行几个小时）。为了避免超时异常，我们在StatementLevel使用这句话：
statement.setQueryTimeout(0);
这可以使用 Oracle jdbc 驱动程序版本 12c，但当我们迁移到 Oracle 18c，并将驱动程序更改为版本 18c 时，查询执行会在 15 分钟后停止，并出现此异常。该代码适用于 Oracle 12 和 Oracle 18，驱动程序 jar 中的更改导致了问题。该问题已在 Linux 和 Windows 机器上重现：
2021-06-14T07:50:01.762+0200|SEVERE: java.sql.SQLRecoverableException: Error de E/S: Socket read interrupted
at oracle.jdbc.driver.T4CCallableStatement.executeForRows(T4CCallableStatement.java:946)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1136)
at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3640)
at oracle.jdbc.driver.T4CCallableStatement.executeInternal(T4CCallableStatement.java:1318)
at oracle.jdbc.driver.OraclePreparedStatement.execute(OraclePreparedStatement.java:3752)
at oracle.jdbc.driver.OracleCallableStatement.execute(OracleCallableStatement.java:4242)
at oracle.jdbc.driver.OraclePreparedStatementWrapper.execute(OraclePreparedStatementWrapper.java:1079)
at com.sun.gjc.spi.base.PreparedStatementWrapper.execute(PreparedStatementWrapper.java:532)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at com.sun.gjc.spi.jdbc40.ProfiledConnectionWrapper40$1.invoke(ProfiledConnectionWrapper40.java:437)
at com.sun.proxy.$Proxy324.execute(Unknown Source)
at org.apache.jsp.index_jsp.callPL(index_jsp.java:49)
at org.apache.jsp.index_jsp._jspService(index_jsp.java:108)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:750)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:411)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:473) …