Thanks Tyler - here is the log when I call this:
DEBUG 22:59:42,914 get_slice DEBUG 22:59:42,915 strongread reading data for SliceFromReadCommand(table='ACRKeyspace_purify', key='31', column_parent='QueryPath(columnFamilyName='UserOwnedCars', superColumnName='null', columnName='null')', start='', finish='', reversed=false, count=100) from 9...@localhost/127.0.0.1 DEBUG 22:59:42,916 collecting 0 of 100: 2885:false:3...@592255573044823040 DEBUG 22:59:42,916 collecting 1 of 100: 3272:false:3...@2320511930048250880 DEBUG 22:59:42,917 collecting 2 of 100: 3363:false:3...@592255573044823040 DEBUG 22:59:42,917 collecting 3 of 100: currentCarUID:false:3...@8670115967555404800 DEBUG 22:59:42,917 Read key java.nio.HeapByteBuffer[pos=0 lim=1 cap=1]; sending response to 282f307a-0b07-7b07-c340-88e847bef...@localhost/127.0.0.1 DEBUG 22:59:42,917 Processing response on a callback from 282f307a-0b07-7b07-c340-88e847bef...@localhost/127.0.0.1 DEBUG 22:59:42,917 resolving 1 responses DEBUG 22:59:42,917 resolve: 0 ms. DEBUG 22:59:42,917 quorumResponseHandler: 1 ms. DEBUG 22:59:42,930 batch_mutate DEBUG 22:59:42,931 insert writing local RowMutation(keyspace='ACRKeyspace_purify', key='31', modifications=[UserOwnedCars]) DEBUG 22:59:42,935 get_slice DEBUG 22:59:42,936 strongread reading data for SliceFromReadCommand(table='ACRKeyspace_purify', key='31', column_parent='QueryPath(columnFamilyName='UserOwnedCars', superColumnName='null', columnName='null')', start='', finish='', reversed=false, count=100) from 9...@localhost/127.0.0.1 DEBUG 22:59:42,936 collecting 0 of 100: 2885:false:3...@592255573044823040 DEBUG 22:59:42,936 collecting 1 of 100: 3272:false:3...@2320511930048250880 DEBUG 22:59:42,936 collecting 2 of 100: 3363:false:3...@592255573044823040 DEBUG 22:59:42,936 collecting 3 of 100: currentCarUID:false:3...@8670115967555404800 DEBUG 22:59:42,937 Read key java.nio.HeapByteBuffer[pos=0 lim=1 cap=1]; sending response to 32e4f8f8-2df0-8803-ebb6-ac2eaf2e5...@localhost/127.0.0.1 DEBUG 22:59:42,937 Processing response on a callback from 32e4f8f8-2df0-8803-ebb6-ac2eaf2e5...@localhost/127.0.0.1 DEBUG 22:59:42,937 resolving 1 responses DEBUG 22:59:42,937 resolve: 0 ms. DEBUG 22:59:42,937 quorumResponseHandler: 0 ms. From: Tyler Hobbs [mailto:ty...@riptano.com] Sent: 17 November 2010 22:56 To: user@cassandra.apache.org Subject: Re: casssandra 0.7beta3, pycassa and windows client timestamps Can you turn on debug logging on Cassandra (change INFO to debug in conf/log4j-server.properties) and see what happens when you send a write that doesn't seem to have an effect? - Tyler On Wed, Nov 17, 2010 at 4:40 PM, Dr. Andrew Perella <a...@eutechnyx.com<mailto:a...@eutechnyx.com>> wrote: The value I want to change is: ColumnOrSuperColumn(column=Column(timestamp=1290033433618000L, name='currentCarUID', value='82b50f91663f42ee8a740447efa1bdae', ttl=None), super_column=None) and I try to overwrite it with: Mutation(column_or_supercolumn= ColumnOrSuperColumn(column=Column(timestamp=1290033474541000L, name=u'currentCarUID', value='e7d0cac632134c479110b6f0bb5ca6ea', ttl=None), super_column=None), deletion=None) I am just running a single node test machine. I am using it to run multiple keyspaces for other services (from other clients) if that might be relevant at all. From: Tyler Hobbs [mailto:ty...@riptano.com<mailto:ty...@riptano.com>] Sent: 17 November 2010 22:33 To: user@cassandra.apache.org<mailto:user@cassandra.apache.org> Subject: Re: casssandra 0.7beta3, pycassa and windows client timestamps Can you give me an example of what your writes look like here? Are you running a multinode cluster or just one instance of Cassandra? - Tyler On Wed, Nov 17, 2010 at 4:30 PM, Dr. Andrew Perella <a...@eutechnyx.com<mailto:a...@eutechnyx.com>> wrote: Miliseconds - but that's not the problem - I can wait 10 minutes and still not get the value updated! Other times I can update many times a second - it just seems random! From: Tyler Hobbs [mailto:ty...@riptano.com<mailto:ty...@riptano.com>] Sent: 17 November 2010 22:28 To: user@cassandra.apache.org<mailto:user@cassandra.apache.org> Subject: Re: casssandra 0.7beta3, pycassa and windows client timestamps What resolution does time.time() give you in Windows? - Tyler On Wed, Nov 17, 2010 at 4:23 PM, Dr. Andrew Perella <a...@eutechnyx.com<mailto:a...@eutechnyx.com>> wrote: I have encountered a strange problem with values not being written to Cassandra very often. It looks like it is a windows client timestamp problem. I cannot detect a pattern as to when a timestamp will allow an update however if I run my client (in a web server) on linux then the problem goes away. Has anyone seen anything like this or will I need to delve deeper into thift? FYI I am using pythons int(time.time()*1e6) as a timestamp Best Regards, Andrew This e-mail is confidential and may be privileged. It may be read, copied and used only by the intended recipient. 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