OrientDB 问题在事务中创建顶点

Question

我认为使用事务在图表中创建记录时存在问题。 在事务期间创建的顶点始终存储在集群 #3 中，当我在 studio webapp 上检查时，在 tx 中创建的顶点具有类“未知”

代码如下：

client = pyorient.OrientDB("localhost", 2424)
client.connect("xxx", "xxx")
client.db_open("admin", "admin")

people_cluster = client.command("create class People extends V")
client.command("create vertex People content {'name': 'dummy', 'age': 21}")

attrs = {'@People': {'name': 'another_me', 'age': 31}}
res = client.record_create(people_cluster[0], attrs)

attrs2 = {'@People': {'name': 'me', 'age': 30}}
create_rec_cmd = ( client.get_message(pyorient.RECORD_CREATE) ).prepare((people_cluster[0], attrs2))

tx = tx.commit()
tx.begin()
tx.attach(create_rec_cmd)
tx.commit()

# This returns 'dummy' and 'another_me', but the people created in the tx is not present
res = client.command("select from People")

print(res[0]) => {'@People':{'age': 21, 'name': 'dummy', 'version':2,'rid':'#13:0'}
print(res[1]) => {'@People':{'age': 31, 'name': 'another_me'},'version':1,'rid':'#13:1'}

# The ones created in the transaction are found in the cluster #3, but with no class
print(client.command("select from #3:0")[0]) => {{'name': 'me', 'age': 30},'version':1,'rid':'#3:0'}

我已经激活了xml配置中的debug选项，日志并没有给出太多信息：

2015-08-16 17:59:46:992 INFO {db=test} /192.168.10.1:41317 - 读取字节：60 [OChannelBinaryServer]

2015-08-16 17:59:46:994 INFO {db=test} /192.168.10.1:41317 - 读取 int（4 个字节）... [OChannelBinaryServer]

2015-08-16 17:59:46:995 INFO {db=test} /192.168.10.1:41317 - 读取 int：6 [OChannelBinaryServer]

2015-08-16 17:59:47:000 INFO {db=test} /192.168.10.1:41317 - 读取 int (4 字节）... [OChannelBinaryServer]

2015-08-16 17:59:47:002 INFO {db=test} /192.168.10.1:41317 - 读取 int：2113677732 [OChannelBinaryServer]

2015-08-16 17:59:47:003 INFO {db=test} /192.168.10.1:41317 - 读取字节（1 个字节）... [OChannelBinaryServer]

2015-08-16 17:59:47:004 INFO {db=test} /192.168.10.1:41317 - 读取字节：1 [OChannelBinaryServer]

2015-08-16 17:59:47:005 INFO {db=test} /192.168.10.1:41317 - 读取字节（1 个字节）... [OChannelBinaryServer]

2015-08-16 17:59:47:006 INFO {db=test} /192.168.10.1:41317 - 读取字节：1 [OChannelBinaryServer]

2015-08-16 17:59:47:006 INFO {db=test} /192.168.10.1:41317 - 读取字节（1 个字节）... [OChannelBinaryServer]

2015-08-16 17:59:47:007 INFO {db=test} /192.168.10.1:41317 - 读取字节：3 [OChannelBinaryServer]

2015-08-16 17:59:47:007 INFO {db=test} /192.168.10.1:41317 - 读短（2 个字节）... [OChannelBinaryServer]

2015-08-16 17:59:47:007 信息 {db=test} /192.168.10.1:41317 - 简短阅读：-1 [OChannelBinaryServer]

2015-08-16 17:59:47:008 INFO {db=test} /192.168.10.1:41317 - 读取长（8 字节）... [OChannelBinaryServer]

2015-08-16 17:59:47:008 INFO {db=test} /192.168.10.1:41317 - 长读：-2 [OChannelBinaryServer]

2015-08-16 17:59:47:009 INFO {db=test} /192.168.10.1:41317 - 读取字节（1 个字节）... [OChannelBinaryServer]

2015-08-16 17:59:47:009 INFO {db=test} /192.168.10.1:41317 - 读取字节：100 [OChannelBinaryServer]

2015-08-16 17:59:47:010 INFO {db=test} /192.168.10.1:41317 - 读取字节块。读取块长度为 int（4 字节）... [OChannelBinaryServer]

2015-08-16 17:59:47:010 INFO {db=test} /192.168.10.1:41317 - 读取块长度：18 [OChannelBinaryServer]

2015-08-16 17:59:47:011 INFO {db=test} /192.168.10.1:41317 - 读取 18 个字节... [OChannelBinaryServer]

2015-08-16 17:59:47:011 INFO {db=test} /192.168.10.1:41317 - 读取 18 个字节：age:30,name:"me" [OChannelBinaryServer]

2015-08-16 17:59:47:016 INFO {db=test} /192.168.10.1:41317 - 读取字节（1 个字节）... [OChannelBinaryServer]

2015-08-16 17:59:47:017 INFO {db=test} /192.168.10.1:41317 - 读取字节：0 [OChannelBinaryServer]

2015-08-16 17:59:47:017 INFO {db=test} /192.168.10.1:41317 - 读取字节块。读取块长度为 int（4 字节）... [OChannelBinaryServer]

Answer 1

pyorient docs 有以下示例（为清楚起见，删除了几行）...

tx = client.tx_commit()
tx.begin()

# create a new record
rec1 = { 'accommodation': 'home', 'work': 'some work', 'holiday': 'surf' }
rec_position1 = client.record_create( -1, rec1 )

tx.attach( rec_position1 )

record_create的源码如下...

def record_create(self, *args):
return self.get_message("RecordCreateMessage") \
    .prepare(args).send().fetch_response()

您的代码只运行get_message 和prepare 函数，而不是send 和fetch_response。我怀疑这就是你的问题所在。