Hey,
I think I've fixed these before, let me know how the attached patch works
for you. The first issue which caused the the second True is because it's
not undirtying itself correctly, and there's also a bug in
examples/record.py which makes it not run because the variable key doesn't
exist.
Drew
On Mon, Oct 19, 2009 at 04:48, Walter Gillett walter_gill...@yahoo.comwrote:
I'm running the latest lazyboy against apache-cassandra-incubating-0.4.0,
with python 2.6.2 on ubuntu 9.04. I have modified the cassandra file
storage-conf.xml to add the Keyspace that lazyboy wants:
Keyspace Name=UserData
ColumnFamily CompareWith=BytesType Name=Users/
/Keyspace
and have cleaned out all the data under the /var/lib/cassandra directories
to ensure that cassandra gets a clean start. On running the lazyboy example
like so: python record.py I get the output shown below, with an error
about Bad key passed to load(). (I've modified the example slightly to
make the print statements more informative but the executable code is
unchanged.)
On reading the code, looks like things go off the tracks earlier than that.
The example code first prints u.is_modified(), which is True because u
contains an unsaved User object. Then comes u.save() to save the User to
cassandra. Then print u.is_modified()again to show that now the value is
False. Except that the value I get is actually True! Thinking that explains
the downstream error in trying to load the object, it didn't get saved
properly so it can't be loaded.
Any ideas what's going on? I tried the obvious trick of putting in sleep(5)
in case there is a race condition but that didn't work. Is lazyboy
compatible with this version of cassandra? The lazyboy example comes with
Cassandra-0.4.0-py2.6.egg suggesting that the version is compatible, but
clearly something is wrong. I have also included the cassandra console
output below in case that's useful.
Walter Gillett
Running the example (with modified print statements):
$ python record.py
u.key:
{'column_family': 'Users', 'keyspace': 'UserData', 'super_column': None,
'key': 'd86e9901ba6845ba84d3d93b7ff4a7b8'}
User(data):
User: {'username': 'ieure', 'email': 'i...@digg.com'}
u.is_modified()
True
u.is_modified()
True
Traceback (most recent call last):
File record.py, line 80, in module
u_ = User().load(key)
File /usr/lib/python2.6/site-packages/lazyboy/record.py, line 128, in
load
assert isinstance(key, Key), Bad key passed to load()
AssertionError: Bad key passed to load()
Cassandra console output:
$ $CASSANDRA/bin/cassandra -f
Listening for transport dt_socket at address:
DEBUG - Loading settings from /opt/cassandra/bin/../conf/storage-conf.xml
DEBUG - Syncing log with a period of 1000
DEBUG - opening keyspace Keyspace1
DEBUG - adding Super1 as 0
DEBUG - adding Standard2 as 1
DEBUG - adding Standard1 as 2
DEBUG - adding StandardByUUID1 as 3
DEBUG - adding LocationInfo as 4
DEBUG - adding HintsColumnFamily as 5
DEBUG - adding Users as 6
DEBUG - opening keyspace system
DEBUG - opening keyspace UserData
INFO - Saved Token not found. Using 90758413375805622705049558609953482402
DEBUG - Starting to listen on 127.0.0.1:7001
DEBUG - Binding thrift service to localhost:9160
INFO - Cassandra starting up...
DEBUG - batch_insert
DEBUG - insertBlocking writing key f9df5e4875b54281ab57d36efed723b0 to 12@
[127.0.0.1:7000]
DEBUG - Applying RowMutation(table='UserData',
key='f9df5e4875b54281ab57d36efed723b0', modifications=[ColumnFamily(Users
[[101, 109, 97, 105, 108],[117, 115, 101, 114, 110, 97, 109, 101],])])
DEBUG - RowMutation(table='UserData',
key='f9df5e4875b54281ab57d36efed723b0', modifications=[ColumnFamily(Users
[[101, 109, 97, 105, 108],[117, 115, 101, 114, 110, 97, 109, 101],])])
applied. Sending response to 1...@127.0.0.1:7000
DEBUG - Processing response on a callback from 1...@127.0.0.1:7000
From 76089688c4edc624dba64618d5f85adc1b07ea64 Mon Sep 17 00:00:00 2001
From: Drew Schleck drew.schl...@gmail.com
Date: Mon, 19 Oct 2009 19:03:25 -0700
Subject: [PATCH] Fixed record.py
---
examples/record.py |2 +-
lazyboy/record.py |4 +++-
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/examples/record.py b/examples/record.py
index 4df24c0..bda595d 100644
--- a/examples/record.py
+++ b/examples/record.py
@@ -79,7 +79,7 @@ u.save() # - {'username': 'ieure', 'email':
'i...@digg.com'}
print u.is_modified() # - False
# Load it in a new instance.
-u_ = User().load(key)
+u_ = User().load(u.key.clone())
print u_ # - {'username': 'ieure', 'email': 'i...@digg.com'}
print u.is_modified() # - False
diff --git a/lazyboy/record.py b/lazyboy/record.py
index 0e2f100..0bc0c9c 100644
--- a/lazyboy/record.py
+++ b/lazyboy/record.py
@@ -161,12 +161,14 @@ class Record(CassandraBase, dict):
for path in deleted:
client.remove(self.key.keyspace, self.key.key
