Re: How to replace a dead *seed* node while keeping quorum

2012-10-10 Thread Ron Siemens
I witnessed the same behavior as reported by Edward and James. Removing the host from its own seed list does not solve the problem. Removing it from config of all nodes and restarting each, then restarting the failed node worked. Ron On Sep 12, 2012, at 4:42 PM, Edward Sargisson wrote:

Re: How to replace a dead *seed* node while keeping quorum

2012-11-07 Thread Ron Siemens
-Dcassandra.replace_token= when bringing up the new node, this problem wasn't exhibited. Everything worked smoothly. Ron On Oct 10, 2012, at 12:38 PM, Ron Siemens wrote: I witnessed the same behavior as reported by Edward and James. Removing the host from its own seed list does not solve the problem

Titan/Cassandra Keyspace simply disappears

2013-02-08 Thread Ron Siemens
Just had something odd happen - my keyspace disappeared. I'm curious if anyone has seen the same or may have an explanation. I am using Titan 0.2.0 and Cassandra 1.1.6. I ran my application which creates a graph and progressively builds it for a couple of hours. But before completing,

Re: [Aurelius] Titan/Cassandra Keyspace simply disappears

2013-02-08 Thread Ron Siemens
to be the only one - shrug. Ron On Feb 8, 2013, at 10:32 AM, Ron Siemens wrote: INFO [Thrift:1977] 2013-02-07 17:58:01,292 MigrationManager.java (line 174) Drop Keyspace 'Recommender'

ColumnFamily per Index?

2011-09-23 Thread Ron Siemens
I have a column family for my main data, and I have been using an additional column family to store indexes to the data: row per index style. I now want to be able to update a set of indexes by the field being indexed on. To access that set, I can maintain meta indexes for each field, or I

1.0.6 - 1.1.0 nodetool ownership report, and other anomalies

2012-05-16 Thread Ron Siemens
I upgraded to 1.0.6 to 1.1.0, and I noticed the effective ownership report changed. I have a 3-node cluster, with evenly divided tokens and RF=2. The node tool report on 1.0.6 was: 33.33% 0 33.33% 56713727820156410577229101238628035243

Re: 1.0.6 - 1.1.0 nodetool ownership report, and other anomalies

2012-05-17 Thread Ron Siemens
Does the updated reporting in 1.1.0 include the replicated data and before it didn't? Yes. Thanks for verifying that. Ron

Cassandra 1.1.0 NullCompressor and DecoratedKey errors

2012-05-18 Thread Ron Siemens
We have some production Solaris boxes so I can't use SnappyCompressor (no library included for Solaris), so I set it to JavaDeflate. I've also noticed higher load issues with 1.1.0 versus 1.0.6: could this be JavaDeflate, or is that what the old default was? Anyway, I thought I would try no

Re: Cassandra 1.1.0 NullCompressor and DecoratedKey errors

2012-05-18 Thread Ron Siemens
. Unless I see the error again, I'm guessing there was some data leftover between trials. Ron On May 18, 2012, at 3:38 PM, Ron Siemens wrote: We have some production Solaris boxes so I can't use SnappyCompressor (no library included for Solaris), so I set it to JavaDeflate. I've also noticed

Homebrew CF-indexing vs secondary indexing

2011-02-24 Thread Ron Siemens
I am doing some experimenting with indexing. My data CF has about 25000 rows around 1KB each. I set up a special column of boolean value to use as the secondary index. I also created my own index in a separate CF where each index is one row and the column names are the data keys. The

Re: Homebrew CF-indexing vs secondary indexing

2011-02-24 Thread Ron Siemens
I failed to mention: this is just doing repeated data retrievals using the index. ... Sample run: Secondary index. DEBUG Retrieved THS / 7293 rows, in 2012 ms DEBUG Retrieved THS / 7293 rows, in 1956 ms DEBUG Retrieved THS / 7293 rows, in 1843 ms ...

Re: Homebrew CF-indexing vs secondary indexing

2011-02-25 Thread Ron Siemens
+ 758 ms DEBUG Retrieved LIT / 7291 rows, in 17 + 745 ms On Feb 24, 2011, at 3:39 PM, Ron Siemens wrote: I failed to mention: this is just doing repeated data retrievals using the index. ... Sample run: Secondary index. DEBUG Retrieved THS / 7293 rows, in 2012 ms DEBUG Retrieved THS

Backup and restore between different node-sized clusters

2013-05-08 Thread Ron Siemens
I have a 3-node cluster in production and a single-node development cluster. I tested snapshotting a column family from the 3-node production cluster, grouping the files together, and restoring onto my single node development system. That worked fine. Can I go the other direction? It's not