Re: UnserializableColumnFamilyException: Couldn't find cfId

2011-01-21 Thread Ching-Cheng Chen
We have similar exception before, and the root cause was like Aaron mentioned. You will encounter this exception If you have code create CF on the fly and data was insert into the node which hasn't got schema synced yet. You will have to call describe_schema_version() to ensure all nodes has

UnserializableColumnFamilyException: Couldn't find cfId

2011-01-20 Thread Oleg Proudnikov
Hi All, Could you please help me understand the impact on my data? I am running a 6 node 0.7-rc4 Cassandra cluster with RF=2. Schema was defined when the cluster was created and did not change. I am doing batch load with CL=ONE. The cluster is under some stress in memory and I/O. Each node has

Re: UnserializableColumnFamilyException: Couldn't find cfId

2011-01-20 Thread Aaron Morton
Sounds like there are multiple versions of your schema around the cluster. What client API are you using? Does it support thedescribe_schema_versions() function? This will tell you how many versions there are.The easy solutions here is scrub the data and start a new 0.7 cluster using the release