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View Code? Open in Web Editor NEWRead SparkSQL parquet file as RDD[Protobuf]
Home Page: http://spark-packages.org/package/saurfang/sparksql-protobuf
License: Apache License 2.0
sparksql-protobuf's Issues
[Question] How to build the project properly?
Hi saurfang,
Awesome project. I am trying to build it locally. This is my very first time exposing to sbt build tool. I am trying to run sbt compile, but it failed due to not be able to to pick up protobuf and @transient.
~/internship/sparksql-protobuf on master! ⌚ 9:06:21
$ protoc --version
libprotoc 2.6.1
$ tree -L 2 -d
.
├── lib . // output of my compiled protobuf 2.6.1
│ ├── bin
│ ├── include
│ └── lib
├── project
│ ├── project
│ └── target
├── src
│ ├── main
│ └── test
└── target
├── protobuf_external
├── resolution-cache
├── scala-2.11
└── streamsWhen I am trying to compile the project, sbt throws the following errors:
$ sbt compile -Xlint
[info] Loading global plugins from /Users/datng2/.sbt/0.13/plugins
[info] Loading project definition from /Users/datng2/internship/sparksql-protobuf/project
Missing bintray credentials /Users/datng2/.bintray/.credentials. Some bintray features depend on this.
[info] Set current project to sparksql-protobuf (in build file:/Users/datng2/internship/sparksql-protobuf/)
[warn] Credentials file /Users/datng2/.bintray/.credentials does not exist
[warn] Credentials file /Users/datng2/.ivy2/.sbtcredentials does not exist
[info] Compiling 5 Scala sources and 6 Java sources to /Users/datng2/internship/sparksql-protobuf/target/scala-2.11/classes...
[warn] /Users/datng2/internship/sparksql-protobuf/src/main/scala/com/github/saurfang/parquet/proto/spark/ProtoParquetRDD.scala:18: no valid targets for annotation on value conf - it is discarded unused. You may specify targets with meta-annotations, e.g. @(transient @param)
[warn] @transient conf: Configuration
[warn] ^
[warn] one warning found
[error] /Users/datng2/internship/sparksql-protobuf/src/test/generated/com/github/saurfang/parquet/proto/AddressBook.java:79: error: cannot find symbol
[error] com.google.protobuf.ProtocolStringList
[error] ^
[error] symbol: class ProtocolStringList
[error] location: package com.google.protobuf
[error] /Users/datng2/internship/sparksql-protobuf/src/test/generated/com/github/saurfang/parquet/proto/AddressBook.java:1367: error: cannot find symbol
[error] public com.google.protobuf.ProtocolStringList
[error] ^
[error] symbol: class ProtocolStringList
[error] location: package com.google.protobuf
[error] /Users/datng2/internship/sparksql-protobuf/src/test/generated/com/github/saurfang/parquet/proto/AddressBook.java:2247: error: cannot find symbol
[error] public com.google.protobuf.ProtocolStringList
[error] ^
[error] symbol: class ProtocolStringList
[error] location: package com.google.protobuf
[error] /Users/datng2/internship/sparksql-protobuf/src/test/generated/com/github/saurfang/parquet/proto/AddressBook.java:219: error: cannot find symbol
[error] address_ = address_.getUnmodifiableView();
[error] ^
[error] symbol: method getUnmodifiableView()
[error] location: variable address_ of type LazyStringList
[error] /Users/datng2/internship/sparksql-protobuf/src/test/generated/com/github/saurfang/parquet/proto/AddressBook.java:1692: error: cannot find symbol
[error] address_ = address_.getUnmodifiableView();
[error] ^
[error] symbol: method getUnmodifiableView()
[error] location: variable address_ of type LazyStringList
[error] /Users/datng2/internship/sparksql-protobuf/src/test/generated/com/github/saurfang/parquet/proto/AddressBook.java:2249: error: cannot find symbol
[error] return address_.getUnmodifiableView();
[error] ^
[error] symbol: method getUnmodifiableView()
[error] location: variable address_ of type LazyStringList
[error] Note: /Users/datng2/internship/sparksql-protobuf/src/main/java/com/github/saurfang/parquet/proto/ProtoLISTReadSupport.java uses or overrides a deprecated API.
[error] Note: Recompile with -Xlint:deprecation for details.
[error] Note: Some input files use unchecked or unsafe operations.
[error] Note: Recompile with -Xlint:unchecked for details.
[error] 6 errors
[error] (compile:compile) javac returned nonzero exit code
[error] Total time: 6 s, completed Feb 8, 2019 9:14:21 AMAny pointer or help would be greatly appreciated. Thanks :)
"Loose" Schema Mode
Hi, this is a great, useful library.
I tested this libraries compatibility with various 'schema evolution' scenarios where I changed the protobuf (added fields, renamed fields, changed optional->repeated, etc) pass it to the ProtoParquetWriter and try to read it back using ProtoParquetRDD. I found that many 'legal' protobuf evolution rules, like field renames or type changes were not compatible with this library.
Now, I don't want to conflate parquet's own schema evolution rules, or spark 'schema merging' capabilities (http://spark.apache.org/docs/latest/sql-programming-guide.html#schema-merging), but overall it seems technically feasible to have a 'loose' mode where fields that exist in parquet and which have a compatible protobuf type will hydrate the protobuf, regardless of any schema mismatches which makes the process fail hard and fast.
Any thoughts on this?
Examples:
Adding new Enum:
Caused by: org.apache.parquet.io.InvalidRecordException: Illegal enum value
Adding new field:
org.apache.parquet.schema.IncompatibleSchemaModificationException: Cant find "timeout" Scheme mismatch
[Question] Are there any Java examples available on how to use this?
Support protobuf GeneratedMessage3 for ProtoParqeutRDD
Current code just support GeneratedMessage
that is for first version of protobuf but now many users like me use proto 3
please update ProtoParquetRDD for supporting GenerateMessage3
support scala 2.11
as the title, can sparksql-protobuf support scala version 2.11?
how to query on SPARKSQL
Hi Team,
I am trying following SQL:-
var work__store_level_vend_pack_loc_final_data =
sparksession.read.format("csv")
.option("header", "true")
.option("delimiter", "|")
.option("inferSchema", "true")
.load("C:\\Users\\jabin\\Desktop\\project_files\\work__store_level_vend_pack_loc_final_data.txt");
work__store_level_vend_pack_loc_final_data.registerTempTable("work__store_level_vend_pack_loc_final_data_table");
var r1 = sparksession.sqlContext.sql( "SELECT shc_item_id ,'K' as source_owner_cd,item_purchase_status_cd, vendor_package_id,vendor_package_purchase_status_cd,flow_type_cd as vendor_package_flow_type_cd,vendor_carton_qty,vendor_stock_nbr,ksn_package_id,ksn_purchase_status_cd,import_ind,sears_divission_nbr,sears_item_nbr,sears_sku_nbr,scan_based_trading_ind,cross_merchandising_cd,retail_carton_vendor_package_id,vendor_package_owner_cd,can_carry_model_id,'' AS days_to_check_begin_day_qty,'' AS days_to_check_end_day_qty ,dotcom_allocation_ind ,retail_carton_internal_package_qty,allocation_replenishment_cd,shc_item_type_cd,idrp_order_method_cd,source_package_qty as store_source_package_qty,order_duns_nbr FROM work__store_level_vend_pack_loc_final_data_table WHERE flow_type_cd = 'JIT' OR servicing_dc_nbr > '0' ")
// .collect.foreach(println)
now i want to distinct all column of the r1 using sparksession.sqlContext.sql("")
how to do above thing?
Support for Protobuf DynamicMessages
Hi,
We tested sparksql-protobuf here, works pretty well,
but we need to generate the protobuf classes with Protoc .
We have created a feature to pull the latest proto descriptors version from S3 , so that we don't have to keep compiling and including new versions of the compiled ProtoBuf classes. The problem is that the com.google.protobuf.message doesn't contains the method getDescriptor(), it contains getDescriptorForType() instead.
is it possible to create a Support for Protobuf DynamicMessages like this parquet-proto issue ?
apache/parquet-mr#414
[Question] Is there a release compatible with Scala 2.11 available?
Looking at https://bintray.com/saurfang/maven/sparksql-protobuf I can see that the release is compatible to Scala 2.10. Is it hosted somewhere else also with Scala 2.11 compatibility?
Problems with uploading to Spark Packages
Hi @saurfang. For some reason, your zip file is not being encoded properly in base64. Could you please send it to me so that I can debug it?
Thanks,
Burak
Protobuf 3
How can I help make sure this project can support proto3?
Is there a java example for use
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