Question regarding java DowngradingConsistencyRetryPolicy

Hi All, I might be missing something and I would like some clarification on this. We are using the java driver with the Downgrading Retry policy, we see in our logs that are only the reads are retried. In the code and the docs, it says that the write method will retry a maximum of one retry, w

Re: Maintaining counter column consistency

Hi Ben, If you make sure R + W > N you should be fine. Have a read of this http://www.slideshare.net/benjaminblack/introduction-to-cassandra-replication-and-consistency Thanks, H On 1 Oct 2013, at 18:29, Ben Hood <0x6e6...@gmail.com> wrote: Hi, We're maintaining a bunch of a

DSE 3.1.1 null rpc_address in system.peers

Hi All, We have just installed 3 nodes in QA with DSE version 3.1, I can see in JMX that the version installed is 3.1.1 to be precise. When our application start we see this error message from the java-datastax driver 1.0.2 : No rpc_address found for host /X.X.X.3 in node3/X.X.X.3's peers syst

Re: Automatic tombstone compaction

1.2/webhelp/index.html#cassandra/operations/ops_about_config_compact_c.html I just had to include the ‘class’ in the alter statement, otherwise it would not accept my command. Is that not right? Thanks, Tamas From: Haithem Jarraya [mailto:a-hjarr...@expedia.com<mailto:hjarr...@expedia.com>]

Re: Automatic tombstone compaction

Hi, do you mean LeveledCompactionStrategy? Also you will need to run nodetool upgradesstables [keyspace][cf_name] after changing the compaction strategy. Thanks, Haithem Jarraya On 21 Aug 2013, at 15:15, tamas.fold...@thomsonreuters.com<mailto:tamas.fold...@thomsonreuters.com> wrot

Re: Reducing the number of vnodes

Chris, Which C* version are you running? You might want to do an upgrade to the latest version before reducing the vnode counts, a lot of fixes and improvement went in lately, it might help you getting your repair faster. H On 5 Aug 2013, at 12:30, Christopher Wirt mailto:chris.w...@struq.com>

Token Aware Routing: Routing Key Vs Composite Key with vnodes

Hi All, I am a bit confused on how the underlying token aware routing is working in the case of composite key. Let's say I have a column family like this USERS( uuid userId, text firstname, text lastname, int age, PRIMARY KEY(userId, firstname, lastname)) My question is do we need to have the val

Re: Partitioner type

yes, you can query local CF in system keyspace: select partitioner from system.local; H On 4 July 2013 13:02, Vivek Mishra wrote: > Hi, > Is it possible to know, type of partitioner programmitcally at runtime? > > -Vivek >

Thrift threads proliferation

Hi All, We are facing a very strange issue in our C* ring. We are using C* v1.2.4, 7 Nodes in DC1, 3 Nodes in DC2 and 3 Nodes in DC3. We have been testing read/write performances in DC1, by having different disks configurations. For instance we have node1-DC1 use JBOD and node2-DC1 is using RAID-0

Re: Repair Hanging C* 1.2.4

think this won't happen unless you specify the repair range with -st and > -et option. > > How do you start repair? > > -- > Yuki Morishita > Sent with Airmail > On May 2, 2013 at May 2, 2013, Haithem Jarraya (haithem.jarr...@struq.com) > wrote: > >>

Re: Repair session failed

ucceed. > > ** ** > > *From:* Haithem Jarraya [mailto:haithem.jarr...@struq.com] > *Sent:* Wednesday, May 01, 2013 5:46 PM > *To:* user@cassandra.apache.org > *Subject:* Repair session failed > > ** ** > > Hi, > > ** ** > > I am seeing this error message durin

Repair session failed

Hi, I am seeing this error message during repair, INFO [AntiEntropyStage:1] 2013-05-01 14:30:54,300 AntiEntropyService.java (line 764) [repair #ed104480-b26a-11e2-af9b-05179fa66b76] mycolumnfamily is fully synced (1 remaining column family to sync for this session) ERROR [Thread-12725] 2013-05-0

Re: Advice on memory warning

We are facing similar issue, and we are not able to have the ring stable. We are using C*1.2.3 on Centos6, 32GB - RAM, 8GB-heap, 6 Nodes. The total data ~ 84gb (which is relatively small for C* to handle, with a RF of 3). Our application is heavy read, we see the GC complaints in all nodes, I cop

Re: Accessing timestamp of a cassandra column Using CQL3

ain / Michael? Is this possible? > > Cheers > > - > Aaron Morton > Freelance Cassandra Consultant > New Zealand > > @aaronmorton > http://www.thelastpickle.com > > On 13/03/2013, at 10:19 AM, Haithem Jarraya > wrote: > > Hi there, > > I am

Accessing timestamp of a cassandra column Using CQL3

Hi there, I am wondering if it's possible to access the timestamp of a cassandra column via CQL3? Many Thanks, Haithem

Long running nodetool repair

Hi, I am new to Cassandra and I am not sure if this is the normal behavior but nodetool repair runs for too long even for small dataset per node. As I am writing I started a nodetool repair last night at 18:41 and now it's 9:18 and it's still running, the size of my data is only ~500mb per node. W

[nodetool] repair with vNodes

Hi, I am new to Cassandra and I would like to hear your thoughts on this. We are running our tests with Cassandra 1.2.1, in relatively small dataset ~60GB. Nodetool repair command has been running for almost 24hours and I can't see any activity from the logs or JMX. What am I missing? Or th