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[KAFKA-5628] Kafka Startup fails on corrupted index files -
Kafka - [issue]
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| ...One of our kafka brokers shut down after a load test and while there are some corrupted index files , the broker is failing to start with a unsafe memory access error[2017-07-23 15:52:32,019... |
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[HBASE-18107] [AMv2] Remove DispatchMergingRegionsRequest & DispatchMergingRegions -
HBase - [issue]
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| ...They don't align with how we have named the Split equivalents; i.e. SplitRegion (so should be MergeRegion...). They probably have these awkward names because the obvious slots are occupied..... |
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[HBASE-18428] IntegrationTestDDLMasterFailover uses old-style immutable column descriptors -
HBase - [issue]
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[YARN-6842] Implement a new access type for queue -
YARN - [issue]
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| ...When we want to access applications of a queue, only we can do is become the administer of the queue at present.But sometimes we only want authorize someone view applications of ... |
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[HBASE-18436] Add client-side hedged read metrics -
HBase - [issue]
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| ...Need some metrics to represent indicate read high-availability.+hedgedReadOps – the number of hedged read that have occurred.+hedgedReadWin – the number of hedged read returned f... |
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[BEAM-2658] SerializableCoder has higher precedence over ProtoCoder in CoderRegistry#getCoder -
Beam - [issue]
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| ...import com.google.protobuf.Timestamp;import org.apache.beam.sdk.Pipeline;import org.apache.beam.sdk.coders.CannotProvideCoderException;import org.apache.beam.sdk.coders.Coder;import org.apac... |
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[NIFI-4215] Avro schemas with records that have a field of themselves fail to parse, causing stackoverflow exception -
NiFi - [issue]
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| ...Noticed this while attempting to use the AvroSchemaRegsitry with some complex schema. Boiled down, Avro lets you define a schema such as;{ "namespace": "org.apache.nifi.testing", &nbs... |
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[expand - 14 more]
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carbon data performance doubts -
CarbonData - [mail # dev]
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| ...surethanksJack> 在 2017年7月23日，下午11:06，Liang Chen 写道：> > Hi simafengyun> > Can you write a example to introduce how to use sort_columns and update the> documents also, ... |
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carbon data performance doubts - CarbonData - [mail # dev]
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| ...Hi simafengyunCan you write a example to introduce how to use sort_columns and update thedocuments also, thanks.RegardsLiang--View this message in context: http://apache-carbondata-dev-maili... |
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carbon data performance doubts - CarbonData - [mail # dev]
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| ...Good Suggestion!Currently you can refer to the below code for sort_columns use cases.https://github.com/apache/carbondata/blob/master/integration/spark-common-test/src/test/scala/org/apache/... |
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Author: 马云 ,
2017-07-23, 03:33
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carbon data performance doubts - CarbonData - [mail # dev]
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| ...Thank you, Liang. I couldn't find this property "sort_columns" indocumentation. It will be good to have it there.-SwapnilOn Fri, Jul 21, 2017 at 9:31 PM, Liang Chen wrote:>> Hi&g... |
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carbon data performance doubts - CarbonData - [mail # dev]
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| ...Hi Some more info : In release 1.1.1, there was a good improvement "measure filter optimization", system will use minmax index to do filter for measure column filter. So for INT column... |
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carbon data performance doubts - CarbonData - [mail # dev]
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| ...HiSome more info :In release 1.1.1, there was a good improvement "measure filteroptimization", system will use minmax index to do filter for measurecolumn filter.So for INTRegardsLiang... |
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carbon data performance doubts - CarbonData - [mail # dev]
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| ...Hi SwapnilActually, current system's behavior is : Index and dictionary encodingare decoupled, no relationship.1. If you want to make some columns have good filter , just add the... |
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carbon data performance doubts - CarbonData - [mail # dev]
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| ...Thank you Jacky! Above encoding property makes sense. How would you handlean INT column with high cardinality? as per my understanding, this columnwill be considered as measure and only way ... |
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carbon data performance doubts - CarbonData - [mail # dev]
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| ...Hi Swapnil,Dictionary is beneficial for aggregation query (carbon will leverage late decode optimization in sql optimizer), so you can use it for columns on which you frequently do group by.... |
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carbon data performance doubts - CarbonData - [mail # dev]
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| ...Hi Swapnil,Currently it is not supported as numeric value should be written based ontheir datatype in carbondata file and same need to be handled in filters.It is a requirement pending in ca... |
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[NIFI-779] When ReportingTask gets the value of a property where default is not populated in provided PropertyDescriptor, gets null -
NiFi - [issue]
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| ...If a Reporting Task calls ReportingContext.getProperty(PropertyDescriptor) and that PropertyDescriptor does not have a 'default value' populated, then the PropertyValue returned by getProper... |
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[SPARK-20904] Task failures during shutdown cause problems with preempted executors -
Spark - [issue]
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| ...Spark runs tasks in a thread pool that uses daemon threads in each executor. That means that when the JVM gets a signal to shut down, those tasks keep running.Now when YARN preempts an execu... |
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