RE: Exceptions related to thrift transport

Hector version 1.0-3 What is the reason for the second exception, BTW? Thanks, Dushyant From: aaron morton [mailto:aa...@thelastpickle.com] Sent: Wednesday, March 21, 2012 10:46 PM To: user@cassandra.apache.org Subject: Re: Exceptions related to thrift transport 1.

Re: Exceptions related to thrift transport

are you perhaps trying to send a large batch mutate? i've seen broken pipes etc in cassandra 0.7 (currently in the process of upgrading to 1.0.8) when a large batch mutate is sent. On 22/03/2012 07:09, Tiwari, Dushyant wrote: Hector version 1.0-3 What is the reason for the second

Re: single row key continues to grow, should I be concerned?

Hi guys, Based on what you are saying there seems to be a tradeoff that developers have to handle between: keep your rows under a certain size vs keep data that's queried together, on disk together How would you handle this tradeoff in my case: I monitor about

some tests with Composite (Composite as column names=OK, as row keys=KO)

Hi, I have tried few experiments with Composite (first, as columns, and next, as rows). I have followed the paths described by http://www.datastax.com/dev/blog/introduction-to-composite-columns-part-1 My composite is (UTF8, UTF8): (folderId, filename) And I have inserted for all tests, the

RE: tombstones problem with 1.0.8

Just tested 1.0.8 before upgrading from 1.0.7: tombstones created by TTL or by delete operation are perfectly deleted after either compaction or cleanup. Have no idea about any other settings than gc_grace_seconds, check you schema from cassandra-cli. Best regards/ Pagarbiai Viktor

Re: Cassandra - crash with “free() invalid pointer”

Sounds like a race condition in the off heap caching while calling Unsafe.free(). Do you use cache ? What is your use case when you encounter this error ? Are you able to reproduce it ? 2012/3/22 Maciej Miklas mac.mik...@googlemail.com: Hi *, My Cassandra installation runs on flowing system:

How to find CF from cfId

Hi, How to find a column family from a cfId? I got a bunch of exception, want to find out which CF has problem. java.io.IOError: org.apache.cassandra.db.UnserializableColumnFamilyException: Couldn't find cfId=1744830464 at

Re: StackOverflowError during 1.0.8 upgrade

Could you create a bug report here https://issues.apache.org/jira/browse/CASSANDRA and attached the DEBUG level log from the startup to when the error happens. Cheers - Aaron Morton Freelance Developer @aaronmorton http://www.thelastpickle.com On 22/03/2012, at 5:17 AM,

Re: Cassandra Exception

java.io.IOError: org.apache.cassandra.db.UnserializableColumnFamilyException: Couldn't find cfId=-387130991 Schema may have diverged between nodes. use cassandra-cli and run describe cluster; to see how many schema versions you have. Cheers - Aaron Morton Freelance

Re: Cassandra Exception

Thanks Aaron. when I do describe cluster, always there are UNREACHABLE, but nodetool ring is fine. it is pretty busy cluster, read 3K/sec $ cassandra-cli -h localhost -u root -pw cassy Connected to: Production Cluster on localhost/9160 Welcome to the Cassandra CLI. Type 'help;' or '?' for help.

Re: tombstones problem with 1.0.8

Hi Victor, Thanks for your response. Is there a possibility that continual deletions during compact could be blocking removal of the tombstones? The full manual compact takes about 4 hours per node for our data, so there is a large number of deletes occurring during that time. This is the