Contributing Search
All the projects below have beginner-friendly issues which are great places to start contributing
309 results
-
apache/spark
Apache Spark - A unified analytics engine for large-scale data processing
- #55058 - Spark CBO considers columnar operator by generic interface
- #55052 - Feature Request: Add support for qualify clause in SQL
- #54999 - AES-GCM for RPC encryption does not work on YARN
- #54986 - [DOCS] Document return types for aggregate functions (stddev, variance, etc.)
- #54916 - DecisionTreeClassifierSuite fails in Spark 4.2.0-preview3 (Scala 2.13) with corrupted Parquet file error
Contributing Guide Code of Conduct -
akka/akka-core
A platform to build and run apps that are elastic, agile, and resilient. SDK, libraries, and hosted environments.
- #32909 - failed: ClusterShardingInstrumentationSpec
- #32899 - failed: ReplicationSnapshotSpec
- #32890 - expose KeyValuePairs in `testkit.typed.LogginEvent`
- #32817 - bug: Sometimes when using app-version an entire node will not receive any projections in cluster sharding
- #32814 - feat: allow persistence plugins to opt-out of (or take responsibility for) the circuit breaker
- #32811 - Make event metadata optional in case of deserialization errors
Contributing Guide Code of Conduct -
twitter/finagle
A fault tolerant, protocol-agnostic RPC system
- #971 - LengthFieldFramer.apply in Scala 2.13 broken since Commit dc6680b
- #970 - New release for finagle with netty vlunerability fix
- #968 - Feature Request: Emoji Hashtags/Cashtags
- #965 - Client with TLS configuration not working on version v22.12.0 onwards - java.lang.IllegalArgumentException: ApplicationProtocols.Supported is not supported at this time for SslContextClientEngineFactory. Remote Info: Not Available
- #964 - Update the Netty to latest version (4.1.108.Final) - Vulnerability CVE-2024-29025
- #962 - finagle-http: Http methodbuilder does not allow setting sendInterrupts flag to backup request filter
Contributing Guide Code of Conduct -
playframework/playframework
The Community Maintained High Velocity Web Framework For Java and Scala.
- #13798 - Multi-line i18n message values and white space behaviour
- #13793 - Accumulator.flatten causes sporadic IllegalStateException in filter chains
- #13783 - Cached recalculates etag even if content did not change
- #13780 - Make Play Framework AI-friendly (LLMs, agentic coding, AI coding & "vibe coding" tools)
- #13768 - Add support for url parameter in CSV-Format
- #13744 - rewrite websocket code to avoid deprecated pekko-http code (and switch to the maintained code)
Contributing Guide Code of Conduct -
delta-io/delta
An open-source storage framework that enables building a Lakehouse architecture with compute engines including Spark, PrestoDB, Flink, Trino, and Hive and APIs
- #6428 - Schema evolution incorrectly rejects adding nullable struct with non-nullable inner fields
- #6426 - [PROTOCOL RFC]
- #6380 - [Feature Request] [kernel-spark] startVersionNotFound should throw a structured exception exposing earliestAvailableVersion
- #6345 - Delta 4.2.0 Release Cut
- #6339 - [BUG] commitFilesIterator causing silent data loss with coordinated commits
- #6326 - [Feature Request][Spark] Support LIMIT push-down in V2 connector
Contributing Guide Code of Conduct -
typelevel/cats
Lightweight, modular, and extensible library for functional programming.
- #4840 - `Applicative[OneAnd[ZipLazyList, *]]` works incorrectly
- #4831 - Make `Hash.fromUniversalHashCode` null safe
- #4830 - Typeclass instances for `ZipLazyList` and `ZipStream` seem to be unlawful
- #4822 - A Nullable type for scala3
- #4817 - Unexpected behavior of `NonEmptyList.reduce` for tuples of lists
- #4807 - catsSyntaxEq returns false for equality of positive and negative zero in Option
Contributing Guide Code of Conduct -
linkerd/linkerd
Old repo for Linkerd 1.x. See the linkerd2 repo for Linkerd 2.x.
- #2462 - m installing linkerd on the AKS cluster & getting the below error
- #2460 - ZooKeeper server set namer `io.l5d.serversets` appears to leak ZooKeeper watches
- #2451 - Namerd version admin port
- #2446 - serverSession: idleTimeMs times out while there is activity
- #2442 - We are running Namerd & Consul cluster in our environment ,getting below error frequently and that break application communication
- #2411 - Linkerd sporadically stops watching remote addresses in Namerd with thrift interpreter
Contributing Guide Code of Conduct -
sbt/sbt
sbt, the interactive build tool
- #8966 - Do not forget to renew JFrog license
- #8921 - issues with console when usePipelining is true
- #8600 - [2.x] `*.sbt` files in a global plugin directory are not loaded
- #8300 - SBT ignores JDK used in launcher in --bsp mode
- #8141 - SBT fails to compile bridges for module with older Scala version even when custom `javaHome` is set (it doesn't fork the compiler to compile the bridges)
- #8076 - Support multiple credentials for same host/realm
Contributing Guide Code of Conduct -
chipsalliance/chisel
Chisel: A Modern Hardware Design Language
- #5244 - [doc] Add documentation about layer-under-layer errors and how to mitigate
- #5243 - SRAM.masked broken when the mask is a constant of all 1s
- #5231 - suffix always be "sv"
- #5230 - ChiselSim cannot deal with 0-width signals and `DontCare` values
- #5218 - Escape FIRRTL Keywords in Emission
- #5130 - Boring from a Probe with U-turn can cause illegal FIRRTL
Contributing Guide Code of Conduct -
microsoft/synapseml
Simple and Distributed Machine Learning
- #2467 - [BUG] Distributed mode of LightGBMClassifier not working at all when spark.executor.instances > 1
- #2452 - Error Training LGBM Classifier on Databricks
- #2442 - LightGBM numBatches and earlyStoppingRound conflict
- #2441 - When will EBMs be released to the public?
- #2438 - Error Training LGBM Regressor on Fabric
- #2425 - Error: no module named 'synapse.ml'
Contributing Guide Code of Conduct -
zio/zio
ZIO — A type-safe, composable library for async and concurrent programming in Scala
- #10644 - `ZIO.memoize` interrupts awaiting fibers
- #10452 - zio-test: Sharing Layers Between Multiple Files: bootstrap has no Scope in R
- #10442 - Config parsing failure of list element ignored unexpectedly when using withDefault
- #10436 - [Performance] FiberRefs.forkAs scales linearly with size (O(N) bottleneck)
- #10418 - Responsible Disclosure Inquiry – Security Vulnerability Found
- #10392 - Why are we spawning a separate thread for attemptBlockingInterrupt?
Contributing Guide Code of Conduct -
chipsalliance/rocket-chip
Rocket Chip Generator
- #3784 - ALU shiftReverse includes FN_ROR unconditionally, leaving residual logic when useZbb=false
- #3780 - Interrupt Claim Process of PLIC and Rocket
- #3779 - make verilog fails
- #3778 - [Bug Report] Illegal CSR access to mtval2 does not raise exception in Rocket
- #3777 - [Bug Report] Architectural state updates for REM/REMUW instructions are misattributed to incorrect PCs in trace logs
- #3774 - [BUG] `divw` instruction writeback is incorrectly attributed to a trapping instruction's PC in the Commit Log
Contributing Guide Code of Conduct -
twitter/scalding
A Scala API for Cascading
- #2001 - my account is closed
- #1998 - duplicate tags in pom files
- #1997 - incompatibility with recent java8 runtime environments due to hadoop
- #1988 - [Proposal] Support more sinks/sources in scalding-spark
- #1979 - Beam backend is missing some pipes
- #1971 - flake on optimization test
Contributing Guide Code of Conduct -
slick/slick
Slick (Scala Language Integrated Connection Kit) is a modern database query and access library for Scala
- #3391 - LocalDate does not roundtrip on Postgres
- #3304 - Please support sortBy subquery
- #3268 - distinctOn doesn't work with "outer" sortBy without explicit subquery
- #3234 - Compilation hangs if the case class has a new field but slick.relational.Table doesn't have the new field yet. This is only true when using HNil
- #3051 - Scala 3: 22 fields limitation still exists
- #3030 - Java 8 support broken in Slick 3.5.2
Contributing Guide Code of Conduct -
http4s/http4s
A minimal, idiomatic Scala interface for HTTP
- #7805 - Fix deprecated uses of `HotSwap`
- #7776 - Live-reloading using jvm-live-reload
- #7749 - No request/response body sizes recorded by Metrics middlewares
- #7741 - the page containing the EPUB version of the docuementation has not been listed in the sidebar of the "Quick Start" page
- #7737 - Draining response body using exceptOr method runs the observe in pipe applied in middleware to response body in Default Client but doesn't do it on ember client.
- #7697 - `Path.toRelative` can produce absolute paths
Contributing Guide Code of Conduct -
circe/circe
Yet another JSON library for Scala
- #2436 - `Json.mapNumber` asymmetric API and forced unsafe `.get`
- #2422 - circe testing breaks scala 3.8.1 compilation when compiler option "-Wsafe-init" is enabled.
- #2393 - Automatic derivation of Codec for Scala 3 union types
- #2392 - Domain name registration
- #2386 - Road to version 1.0
- #2365 - No given instance of type io.circe.derivation.Default[this.Message] was found
Contributing Guide Code of Conduct -
-
typelevel/fs2
Compositional, streaming I/O library for Scala
- #3701 - Make chunk sizes configurable for ProcessBuilder
- #3697 - Stream.merge hangs when one branch is empty + repeat, unresponsive to interruptAfter and IO.cancel
- #3693 - Process[IO] that spawns child processes might not respect cancellation
- #3682 - Extensible Process Control API (pid and Signals)
- #3667 - Files[IO].writeAll creates file when it shouldn't
- #3661 - `.conflateChunks` does not respect the provided chunk limit
Contributing Guide Code of Conduct -
scalameta/metals
Scala language server with rich IDE features 🚀
- #8279 - Tests do not work with 'Could not get information from the compiler about'
- #8276 - MCP test tool silently returns no output for most ZIO Test specs
- #8273 - Goto definition fails with java.lang.RuntimeException: invalid symbol format
- #8269 - lsp go-to-definition fails for external dependencies on Windows (stdio client)
- #8268 - Bazel 8 breaks bazelbsp due to missing rules_java providers
- #8267 - ScalafixProvider throws "SemanticDB not found" error when navigating to library sources
Contributing Guide Code of Conduct -
