[R] Stream reader/writer API that takes socket stream #21063

Closed
Closed
[R] Stream reader/writer API that takes socket stream#21063
Assignees
paleolimbot
Labels
Component: RType: enhancement
Milestone
8.0.0

Description

@asfimport
asfimport
opened on Feb 8, 2019

I have been working on Spark integration with Arrow.

I realised that there are no ways to use socket as input to use Arrow stream format. For instance,
I want to something like:

connStream <- socketConnection(port = 9999, blocking = TRUE, open = "wb")
rdf_slices <- # alistofdataframes.
stream_writer <- NULLtryCatch({
for (rdf_sliceinrdf_slices) {
batch <- record_batch(rdf_slice)
if (is.null(stream_writer)) {
stream_writer <- RecordBatchStreamWriter(connStream, batch$schema) # Here, looksthere's no way to use socket.
}
stream_writer$write_batch(batch)
}
},
finally = {
if (!is.null(stream_writer)) {
stream_writer$close()
}
})

Likewise, I cannot find a way to iterate the stream batch by batch

RecordBatchStreamReader(connStream)$batches() # Here, looksthere's no way to use socket.

This looks easily possible in Python side but looks missing in R APIs.

Reporter: Hyukjin Kwon
Assignee: Dewey Dunnington / @paleolimbot

Related issues:

Note: This issue was originally created as ARROW-4512. Please see the migration documentation for further details.

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var __m = "github.com";
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    Skip to content
    [R] Stream reader/writer API that takes socket stream #21063
    Closed
    Closed
    [R] Stream reader/writer API that takes socket stream#21063
    Assignees
    paleolimbot
    Labels
    Component: RType: enhancement
    Milestone
    8.0.0
    Description
    @asfimport
    asfimport
    opened on Feb 8, 2019
    I have been working on Spark integration with Arrow.
    I realised that there are no ways to use socket as input to use Arrow stream format. For instance,
    
I want to something like:
    connStream <- socketConnection(port = 9999, blocking = TRUE, open = "wb")
rdf_slices <- # alistofdataframes.
stream_writer <- NULLtryCatch({
for (rdf_sliceinrdf_slices) {
batch <- record_batch(rdf_slice)
if (is.null(stream_writer)) {
stream_writer <- RecordBatchStreamWriter(connStream, batch$schema) # Here, looksthere's no way to use socket.
}
stream_writer$write_batch(batch)
}
},
finally = {
if (!is.null(stream_writer)) {
stream_writer$close()
}
})
    Likewise, I cannot find a way to iterate the stream batch by batch
    RecordBatchStreamReader(connStream)$batches() # Here, looksthere's no way to use socket.
    This looks easily possible in Python side but looks missing in R APIs.
    Reporter: Hyukjin Kwon
    Assignee: Dewey Dunnington / @paleolimbot
    Related issues:
    Note: This issue was originally created as ARROW-4512. Please see the migration documentation for further details.
    Metadata
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    Component: RType: enhancement
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try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

      Skip to content
      [R] Stream reader/writer API that takes socket stream #21063
      Closed
      Closed
      [R] Stream reader/writer API that takes socket stream#21063
      Assignees
      paleolimbot
      Labels
      Component: RType: enhancement
      Milestone
      8.0.0
      Description
      @asfimport
      asfimport
      opened on Feb 8, 2019
      I have been working on Spark integration with Arrow.
      I realised that there are no ways to use socket as input to use Arrow stream format. For instance,
      
I want to something like:
      connStream <- socketConnection(port = 9999, blocking = TRUE, open = "wb")
rdf_slices <- # alistofdataframes.
stream_writer <- NULLtryCatch({
for (rdf_sliceinrdf_slices) {
batch <- record_batch(rdf_slice)
if (is.null(stream_writer)) {
stream_writer <- RecordBatchStreamWriter(connStream, batch$schema) # Here, looksthere's no way to use socket.
}
stream_writer$write_batch(batch)
}
},
finally = {
if (!is.null(stream_writer)) {
stream_writer$close()
}
})
      Likewise, I cannot find a way to iterate the stream batch by batch
      RecordBatchStreamReader(connStream)$batches() # Here, looksthere's no way to use socket.
      This looks easily possible in Python side but looks missing in R APIs.
      Reporter: Hyukjin Kwon
      Assignee: Dewey Dunnington / @paleolimbot
      Related issues:
      Note: This issue was originally created as ARROW-4512. Please see the migration documentation for further details.
      Metadata
      Metadata
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      Labels
      Component: RType: enhancement
      Type
      No type
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      No projects
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        None yet
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        No branches or pull requests
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(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

        Skip to content
        [R] Stream reader/writer API that takes socket stream #21063
        Closed
        Closed
        [R] Stream reader/writer API that takes socket stream#21063
        Assignees
        paleolimbot
        Labels
        Component: RType: enhancement
        Milestone
        8.0.0
        Description
        @asfimport
        asfimport
        opened on Feb 8, 2019
        I have been working on Spark integration with Arrow.
        I realised that there are no ways to use socket as input to use Arrow stream format. For instance,
        
I want to something like:
        connStream <- socketConnection(port = 9999, blocking = TRUE, open = "wb")
rdf_slices <- # alistofdataframes.
stream_writer <- NULLtryCatch({
for (rdf_sliceinrdf_slices) {
batch <- record_batch(rdf_slice)
if (is.null(stream_writer)) {
stream_writer <- RecordBatchStreamWriter(connStream, batch$schema) # Here, looksthere's no way to use socket.
}
stream_writer$write_batch(batch)
}
},
finally = {
if (!is.null(stream_writer)) {
stream_writer$close()
}
})
        Likewise, I cannot find a way to iterate the stream batch by batch
        RecordBatchStreamReader(connStream)$batches() # Here, looksthere's no way to use socket.
        This looks easily possible in Python side but looks missing in R APIs.
        Reporter: Hyukjin Kwon
        Assignee: Dewey Dunnington / @paleolimbot
        Related issues:
        Note: This issue was originally created as ARROW-4512. Please see the migration documentation for further details.
        Metadata
        Metadata
        Assignees
        Labels
        Component: RType: enhancement
        Type
        No type
        Projects
        No projects
          Milestone
          Relationships
          None yet
          Development
          No branches or pull requests
          Issue actions
          
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(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

          Skip to content
          [R] Stream reader/writer API that takes socket stream #21063
          Closed
          Closed
          [R] Stream reader/writer API that takes socket stream#21063
          Assignees
          paleolimbot
          Labels
          Component: RType: enhancement
          Milestone
          8.0.0
          Description
          @asfimport
          asfimport
          opened on Feb 8, 2019
          I have been working on Spark integration with Arrow.
          I realised that there are no ways to use socket as input to use Arrow stream format. For instance,
          
I want to something like:
          connStream <- socketConnection(port = 9999, blocking = TRUE, open = "wb")
rdf_slices <- # alistofdataframes.
stream_writer <- NULLtryCatch({
for (rdf_sliceinrdf_slices) {
batch <- record_batch(rdf_slice)
if (is.null(stream_writer)) {
stream_writer <- RecordBatchStreamWriter(connStream, batch$schema) # Here, looksthere's no way to use socket.
}
stream_writer$write_batch(batch)
}
},
finally = {
if (!is.null(stream_writer)) {
stream_writer$close()
}
})
          Likewise, I cannot find a way to iterate the stream batch by batch
          RecordBatchStreamReader(connStream)$batches() # Here, looksthere's no way to use socket.
          This looks easily possible in Python side but looks missing in R APIs.
          Reporter: Hyukjin Kwon
          Assignee: Dewey Dunnington / @paleolimbot
          Related issues:
          Note: This issue was originally created as ARROW-4512. Please see the migration documentation for further details.
          Metadata
          Metadata
          Assignees
          Labels
          Component: RType: enhancement
          Type
          No type
          Projects
          No projects
            Milestone
            Relationships
            None yet
            Development
            No branches or pull requests
            Issue actions
            
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(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

            Skip to content
            [R] Stream reader/writer API that takes socket stream #21063
            Closed
            Closed
            [R] Stream reader/writer API that takes socket stream#21063
            Assignees
            paleolimbot
            Labels
            Component: RType: enhancement
            Milestone
            8.0.0
            Description
            @asfimport
            asfimport
            opened on Feb 8, 2019
            I have been working on Spark integration with Arrow.
            I realised that there are no ways to use socket as input to use Arrow stream format. For instance,
            
I want to something like:
            connStream <- socketConnection(port = 9999, blocking = TRUE, open = "wb")
rdf_slices <- # alistofdataframes.
stream_writer <- NULLtryCatch({
for (rdf_sliceinrdf_slices) {
batch <- record_batch(rdf_slice)
if (is.null(stream_writer)) {
stream_writer <- RecordBatchStreamWriter(connStream, batch$schema) # Here, looksthere's no way to use socket.
}
stream_writer$write_batch(batch)
}
},
finally = {
if (!is.null(stream_writer)) {
stream_writer$close()
}
})
            Likewise, I cannot find a way to iterate the stream batch by batch
            RecordBatchStreamReader(connStream)$batches() # Here, looksthere's no way to use socket.
            This looks easily possible in Python side but looks missing in R APIs.
            Reporter: Hyukjin Kwon
            Assignee: Dewey Dunnington / @paleolimbot
            Related issues:
            Note: This issue was originally created as ARROW-4512. Please see the migration documentation for further details.
            Metadata
            Metadata
            Assignees
            Labels
            Component: RType: enhancement
            Type
            No type
            Projects
            No projects
              Milestone
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              None yet
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              No branches or pull requests
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(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

              Skip to content
              [R] Stream reader/writer API that takes socket stream #21063
              Closed
              Closed
              [R] Stream reader/writer API that takes socket stream#21063
              Assignees
              paleolimbot
              Labels
              Component: RType: enhancement
              Milestone
              8.0.0
              Description
              @asfimport
              asfimport
              opened on Feb 8, 2019
              I have been working on Spark integration with Arrow.
              I realised that there are no ways to use socket as input to use Arrow stream format. For instance,
              
I want to something like:
              connStream <- socketConnection(port = 9999, blocking = TRUE, open = "wb")
rdf_slices <- # alistofdataframes.
stream_writer <- NULLtryCatch({
for (rdf_sliceinrdf_slices) {
batch <- record_batch(rdf_slice)
if (is.null(stream_writer)) {
stream_writer <- RecordBatchStreamWriter(connStream, batch$schema) # Here, looksthere's no way to use socket.
}
stream_writer$write_batch(batch)
}
},
finally = {
if (!is.null(stream_writer)) {
stream_writer$close()
}
})
              Likewise, I cannot find a way to iterate the stream batch by batch
              RecordBatchStreamReader(connStream)$batches() # Here, looksthere's no way to use socket.
              This looks easily possible in Python side but looks missing in R APIs.
              Reporter: Hyukjin Kwon
              Assignee: Dewey Dunnington / @paleolimbot
              Related issues:
              Note: This issue was originally created as ARROW-4512. Please see the migration documentation for further details.
              Metadata
              Metadata
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              Labels
              Component: RType: enhancement
              Type
              No type
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              No projects
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                None yet
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                No branches or pull requests
                Issue actions
                
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
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var enabled = true;
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if (!enabled) return;
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e.preventDefault();
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console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

                Skip to content
                [R] Stream reader/writer API that takes socket stream #21063
                Closed
                Closed
                [R] Stream reader/writer API that takes socket stream#21063
                Assignees
                paleolimbot
                Labels
                Component: RType: enhancement
                Milestone
                8.0.0
                Description
                @asfimport
                asfimport
                opened on Feb 8, 2019
                I have been working on Spark integration with Arrow.
                I realised that there are no ways to use socket as input to use Arrow stream format. For instance,
                
I want to something like:
                connStream <- socketConnection(port = 9999, blocking = TRUE, open = "wb")
rdf_slices <- # alistofdataframes.
stream_writer <- NULLtryCatch({
for (rdf_sliceinrdf_slices) {
batch <- record_batch(rdf_slice)
if (is.null(stream_writer)) {
stream_writer <- RecordBatchStreamWriter(connStream, batch$schema) # Here, looksthere's no way to use socket.
}
stream_writer$write_batch(batch)
}
},
finally = {
if (!is.null(stream_writer)) {
stream_writer$close()
}
})
                Likewise, I cannot find a way to iterate the stream batch by batch
                RecordBatchStreamReader(connStream)$batches() # Here, looksthere's no way to use socket.
                This looks easily possible in Python side but looks missing in R APIs.
                Reporter: Hyukjin Kwon
                Assignee: Dewey Dunnington / @paleolimbot
                Related issues:
                Note: This issue was originally created as ARROW-4512. Please see the migration documentation for further details.
                Metadata
                Metadata
                Assignees
                Labels
                Component: RType: enhancement
                Type
                No type
                Projects
                No projects
                  Milestone
                  Relationships
                  None yet
                  Development
                  No branches or pull requests
                  Issue actions