Release Notes for Storm 2.6.0

JIRA issues addressed in the 2.6.0 release of Storm. Documentation for this release is available at the Apache Storm project site.

New Feature

[STORM-3762] - Set a default character set in InputStreamReader to solve potential garbled problems
[STORM-3764] - Nimbus has internal scheduling errors when backtracking
[STORM-3771] - Execute doCleanup in its own timer thread without lock
[STORM-3782] - Refactor KafkaOffsetMetric to use V2 metrics
[STORM-3792] - Change pom.xml to use more test JVM threads without reuse
[STORM-3800] - Fix Resocue leak due to Files.list and Files.walk
[STORM-3825] - update libthrift due to security vulnerability
[STORM-3845] - Upgrade activemq version from 5.15.3 to 5.18.2
[STORM-3888] - HdfsBlobStoreFile set wrong permission for file
[STORM-3914] - Several External Modules as not being tested for JDK 11
[STORM-3919] - Upgrade Hadoop to version 3 (+ depending frameworks: Hive, HBase)
[STORM-3948] - Hive 2.3.9 declares an offline / unmaintained maven repository
[STORM-3980] - Updates developer docs and removing obsolete content
[STORM-3983] - Refactor File.createTempFile with Files.create(...)
[STORM-4003] - storm-kafka-monitor fails with Java 17 runtime, missing jakarta.xml.bind dependency

[STORM-3404] - storm v1.2.2 KafkaOffsetLagUtil cant pull the offset correctly
[STORM-3924] - Support for declaring WorkerHook in Flux topology definitions
[STORM-3944] - ConcurrentModificationException in MultiCountMetric
[STORM-3954] - Remove Logback pulled in by Zookeeper
[STORM-3956] - Fix cli monitor component's argument type
[STORM-3984] - Nimbus failover causes unnecessary reassign if 600s are passed after starting Nimbus
[STORM-3994] - LocalCluster init fails on Windows because of missing librocksdbjni-win64.dll

[STORM-3932] - Fix errors/warnings found while generating javadoc in storm-client
[STORM-3933] - Fix errors/warnings found while generating javadoc in storm-server
[STORM-3935] - Fix errors/warnings found while generating javadoc in storm-cassandra
[STORM-3936] - Fix errors/warnings found while generating javadoc in storm-kafka-client
[STORM-3937] - Fix errors/warnings found while generating javadoc in storm-starter
[STORM-3939] - Remove JDK 8 support
[STORM-3941] - Add .asf.yaml to GitHub repository
[STORM-3945] - Upgrade Zookeeper to 3.9.0 / Curator 5
[STORM-3953] - Update RELEASING.md
[STORM-3955] - Dependabot recommended update to maven-core
[STORM-3963] - Import and Build Apache Storm in Eclipse
[STORM-3965] - Remove illegal access warning in JDK11 test of storm-sql-core
[STORM-3967] - Set generated sources directory for use by IDE like eclipse
[STORM-3968] - Add missing groupId in storm-core/pom.xml for maven-dependency-plugin
[STORM-3970] - storm-sql-core in fails to build Eclipse for generated java code
[STORM-3978] - Rep,ace json-simple with minidev json
[STORM-3988] - Removal of modules residing in /external
[STORM-3999] - Add Java 21 to Build Matrix
[STORM-4001] - log4j2 2.21.1

[STORM-3884] - Bump calcite-core from 1.14.0 to 1.32.0
[STORM-3885] - Security fix upgrade com.fasterxml.jackson.core:jackson-databind to 2.15.2
[STORM-3946] - Upgrade Netty BOM
[STORM-3947] - Align Netty with version used in Zookeeper
[STORM-3949] - libthrift 0.18.1
[STORM-3950] - Modernize storm-jdbc
[STORM-3961] - Modernize Storm UI's 3rd party dependencies
[STORM-3972] - commons-lang3 3.13.0
[STORM-3973] - log4j2 2.20.0
[STORM-3974] - Jersey 2.40
[STORM-3975] - Dropwizard 1.3.29
[STORM-3976] - j2html 1.6.0
[STORM-3977] - Minidev JSON 2.5.0
[STORM-3979] - JUnit 5.10.0
[STORM-3986] - Get rid of BlacklistScheduler timer [INFO] logs
[STORM-3987] - Zookeeper 3.9.1
[STORM-3989] - Snappy Java 1.1.10.4
[STORM-3990] - Hadoop 2.10.2
[STORM-3991] - Avro 1.11.3
[STORM-3993] - ActiveMQ 5.18.3
[STORM-3995] - commons-text 1.11.0
[STORM-3996] - Jetty 9.4.53.v20231009
[STORM-3997] - Netty 4.1.100
[STORM-3998] - Guava 32.1.3-jre