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Hortonworks HBase Meetup Presentation
Hortonworks HBase Meetup Presentation
Hortonworks HBase Meetup Presentation
Hortonworks HBase Meetup Presentation
Hortonworks HBase Meetup Presentation
Hortonworks HBase Meetup Presentation
Hortonworks HBase Meetup Presentation
Hortonworks HBase Meetup Presentation
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Hortonworks HBase Meetup Presentation


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  • 1. HBase Dev Meetup09/11/2012Enis Soztutarenis [@] apache [dot] org#enissoz© Hortonworks Inc. 2011 Page 1
  • 2. Integration Testing• Hbase Integration Tests plan – HBASE-62011. Create hbase-it module2. Ability to run integration tests on a given cluster mvn verify bin/hbase org.apache.hadoop.hbase.IntegrationTestsDriver3. Port candidate tests4. Add more long running and fault injection tests5. (Most of) Integration tests should be able to run over a mini cluster or a 100+ node cluster.6. Integration tests should run in mini mode as nightlies (apache jenkins)7. Our plan is to run the whole suite of Integration tests nightly/weekly on medium-sized clusters. Every org. should be able to do this easily. Architecting the Future of Big Data Page 2 © Hortonworks Inc. 2011
  • 3. Current Status• hbase-it module committed, HBASE-6203• HBaseCluster interface for interacting with the cluster from system tests (HBASE-6241) – Patch near to being committed• Subtask jiras for porting each test or adding a new test• Hbase book documentation available in patch for HBASE-6302• Candidate tests to be converted: • LoadTestTool • TestFromClientSide • BigTop TestLoadAndVerify • TestShell and src/test/ruby • Goraci • TestRollingRestart ( • TestMasterFailover turner/goraci) • TestImportExport • TestAcidGuarantees / • Test**OnCluster TestAtomicOperation • Balancer tests • TestRegionBalancing (HBASE- 6053) • TestFullLogReconstruction • TestMultiVersions / Architecting the Future of Big Data Page 3 TestKeepDeletes © Hortonworks Inc. 2011
  • 4. HBASE-6241 Overview• New junit @Category(IntegrationTests.class)• Introduces HBaseCluster – public abstract ClusterStatus getClusterStatus(); – public abstract void startRegionServer(String hostname); – Start/stop/kill RS / Master – MiniHBaseCluster and DistributedHBaseCluster implements HBaseCluster• Introduces DistributedHBaseCluster – Keeps state about a distributed cluster – Does not know about environment. Uses ClusterManager to interact with the cluster• ClusterManager is an Api to manage services – public abstract void start(ServiceType service, String hostname) – Pluggable, specific implementations for every environment• HBaseClusterManager extends ClusterManager – Knows about environment (HBASE_HOME, HBASE_CONF_DIR, HBASE_SSH_OPTS ) – Uses SSH and remotely executes ps, kill -9, bin/ start/stop Architecting the Future of Big Data Page 4 © Hortonworks Inc. 2011
  • 5. HBASE-6241 Overview (cont.)• Introduces HBaseIntegrationTestingUtility extends HBaseTestingUtility – Integration tests uses this• Introduces 2 ways to run integration tests – bin/hbase o.a.h.h.IntegrationTestsDriver –config <hbase_conf_dir> – mvn verify (runs tests using mini cluster) – mvn verify –Dhbase.test.cluster.distributed=true – Dhbase.conf.dir=<hbase_conf_dir> (further patch)• Introduces ChaosMonkey – A utility to injects faults in a running cluster. – Does not know about environment, uses HBaseIntegrationTestingUtility – Actions (RestartActiveMaster, RestartRandomRs, RestartRsHoldingMeta, BatchRestartRs, RollingBatchRestartRs, etc ) – Policies (PeriodicRandomActionPolicy), predefined named policies (EVERY_MINUTE_RANDOM_ACTION_POLICY)• Introduces IntegrationTestDataIngestWithChaosMonkey – Runs LoadTestTool and ChaosMonkey for configurable running time – Adjusts data load based on the cluster size (also works with mini cluster) Architecting the Future of Big Data Page 5 © Hortonworks Inc. 2011
  • 6. Open Issues• 0.94 porting?• Hadoop NN HA testing• BIGTOP-635• Community interest• Different environments (no SSH, etc)• ??? Architecting the Future of Big Data Page 6 © Hortonworks Inc. 2011
  • 7. HBase on Windows• WHY? – Because we can : ) – More platforms = more users + more development• WHO – MS + HW• WHEN? – Patches will start rolling shortly• WHERE? – Apache HBase Trunk – 0.94? 0.92?• WHAT – Hadoop on windows (HADOOP-8079) – Test fixes, file path name related fixes, timing issues, network related changes, build changes, bin scripts, etc Architecting the Future of Big Data Page 7 © Hortonworks Inc. 2011
  • 8. ThanksGo bananas!Taken from Architecting the Future of Big Data Page 8 © Hortonworks Inc. 2011