Cassandra 3.11.1 java.lang.UnsatisfiedLinkError Exception when using Leveled Compaction

We are using 3.11.1 (which we recently upgraded from 3.11.0) and just started experimenting with LeveledCompactionStrategy. After loading data for 24 hours, we started getting the following error: ERROR [CompactionExecutor:628] 2017-10-27 11:58:21,748 CassandraDaemon.java:228 - Exception in

Re: Getting DigestMismatchExceptions despite setting read repair chances to zero

> On Oct 27, 2017, at 3:08 AM, Artur Siekielski wrote: > > I noticed that the DecoratedKey printed in the stack trace can be for a > different table. The arguments are a token and a partition key and they can > be the same for multiple tables. Is there a way to know for which

Re: Materialized Views marked experimental

> On Oct 27, 2017, at 2:23 AM, Gábor Auth wrote: > > Hi, > >> On Thu, Oct 26, 2017 at 11:10 PM Blake Eggleston >> wrote: >> Following a discussion on dev@, the materialized view feature is being >> retroactively classified as experimental, and

Re: Why don't I see my spark jobs running in parallel in Cassandra/Spark DSE cluster?

Seems like a question better suited for the Spark mailing list, or the DSE support , not OSS Cassandra. > On Oct 27, 2017, at 8:14 AM, Thakrar, Jayesh > wrote: > > What you have is sequential and hence sequential processing. > Also Spark/Scala are not parallel

Cassandra Compaction Metrics - CompletedTasks vs TotalCompactionCompleted

Dear community, I am studying the behaviour of the Cassandra TimeWindowCompactionStragegy. To do so I am watching some metrics. Two of these metrics are important: Compaction.CompletedTasks, a gauge, and the TotalCompactionsCompleted, a Meter. According to the documentation (

Re: Why don't I see my spark jobs running in parallel in Cassandra/Spark DSE cluster?

What you have is sequential and hence sequential processing. Also Spark/Scala are not parallel programming languages. But even if they were, statements are executed sequentially unless you exploit the parallel/concurrent execution features. Anyway, see if this works: val (RDD1, RDD2) =

Re: Hinted handoff throttled even after "nodetool sethintedhandoffthrottlekb 0"

Bit more information. Using jmxterm and inspecting the state of a node when it's "slow" playing hints, I can see the following from the node that has hints to play: $>get MaxHintsInProgress #mbean = org.apache.cassandra.db:type=StorageProxy: MaxHintsInProgress = 2048; $>get HintsInProgress

Re: Getting DigestMismatchExceptions despite setting read repair chances to zero

I noticed that the DecoratedKey printed in the stack trace can be for a different table. The arguments are a token and a partition key and they can be the same for multiple tables. Is there a way to know for which table the DigestMismatchException happens? Can the AsyncRepairRunner be

Re: Materialized Views marked experimental

Hi, On Thu, Oct 26, 2017 at 11:10 PM Blake Eggleston wrote: > Following a discussion on dev@, the materialized view feature is being > retroactively classified as experimental, and not recommended for new > production uses. The next patch releases of 3.0, 3.11, and 4.0

Re: Why don't I see my spark jobs running in parallel in Cassandra/Spark DSE cluster?

No, I dont use Yarn. This is standalone spark that comes with DataStax Enterprise version of Cassandra. On Thu, Oct 26, 2017 at 11:22 PM, Jörn Franke wrote: > Do you use yarn ? Then you need to configure the queues with the right > scheduler and method. > > On 27. Oct

Re: server connection in authenticator

Hello Justin and thank you for your answer. Yes, I am aware of that mechanism. What we need to accomplish is to add some extra validations to the certificate in a new Authenticator and in order to get the certificates for the current connection we need the ServerConnection object or the