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Scan Executors
Configuring and using Scan Executors Configuring and using Scan Prioritizers. Providing hints from the client side. Accumulo scans operate by repeatedly fetching batches of dat... -
Utilities
_.escape(string) Arguments Returns Example _.identity(value) Arguments Returns Example _.mixin(object) Arguments Example _.noConflict() Returns Example _.parseInt(val... -
JDO v JPA
There are several competing persistence technologies available for Java. Two of these are “standardised” (via the JCP). When developing your application you need to choose the mos... -
MapReduce
General MapReduce configuration Add Accumulo’s MapReduce API to your dependencies Configure dependencies for your MapReduce job Read input from an Accumulo table Write output t... -
Arrays
first initial last rest flatten without union intersection difference uniq zip unzip object chunk indexOf lastIndexOf sortedIndex findIndex findLastIndex range ... -
3. Trouble Shooting
Common Issues java.lang.UnsupportedClassVersionError .. Unsupported major.minor version 52.0 org.apache.spark.SparkException: When running with master ‘yarn’ either HADOOP_CONF_DI... -
2. Deploy Kyuubi engines on Kubernetes
Deploy Kyuubi engines on Kubernetes Requirements Configurations Master Docker Image Test Cluster ServiceAccount Volumes PodTemplateFile Other Deploy Kyuubi engin... -
8. Distributed locks and synchronizers
8.1. Lock 8.2. Fair Lock 8.3. MultiLock 8.4. RedLock 8.5. ReadWriteLock 8.6. Semaphore 8.7. PermitExpirableSemaphore 8.8. CountDownLatch 8.9. Spin Lock 8.10. Fenced Lock ... -
1. Deploy Kyuubi engines on Yarn
Deploy Kyuubi engines on Yarn Requirements Configurations Environment Spark Properties Master Queue Sizing Tuning Others Kerberos Deploy Kyuubi engines on Yarn ... -
Spark
General configuration Reading from Accumulo table Writing to Accumulo table Use a BatchWriter Using Bulk Import Reference Apache Spark applications can read from and write ...