/books/distributed-services-with-go
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Hi @travisjeffery, in the Close function on page 33 it seems there is an error, after the i.mmap.Sync is called, the memory is not unmapp...
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@travisjeffery
The book in many places stands for Raft consensus algorithm being able to replicate all data across the servers. The trut...
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@travisjeffery The code in server.go is not consistent with the generated grpc code.
I see that the code in the git repo was updated, bu...
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@travisjeffery
PDF - Page 35
No need to synchronize this function? How mmap work with multiple writers?.
func (i *index) Write(off uin...
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Can I run proglog from within Intellij without too much trouble? When I try I get
Error: open : no such file or directory
I assume thi...
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On page 44:
Now add the following Append() function below setup():
“Append() function” should read “Append() method”.
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On page 42:
We test that we can append a record to a segment, read back the same record, and eventually hit the configured max size for...
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On page 40:
IsMaxed returns whether the segment has reached its max size, either by writing too much to the store or the index. If you ...
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On page 40:
Read(off uint64) returns the record for the given offset. Similar to writes, to read a record the segment must first transl...
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On page 18
These protobuf messages are equivalent to the Go structs shown earlier.
You’ll notice the two syntaxes are very similar: in...
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I’m not quite sure what’s going on here, but I’m unable to have to containers successfully complete the Readiness/Liveness checks. I’m im...
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Page 28: It implements io.ReaderAt on the store type.
Sorry if it’s a dumb question but was the io.ReaderAt supposed to be io.ReadAt?
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Hi @travisjeffery, in the Close function on page 33 it seems there is an error, after the i.mmap.Sync is called, the memory is not unmapp...
New
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@travisjeffery
The book in many places stands for Raft consensus algorithm being able to replicate all data across the servers. The trut...
New

@travisjeffery
PDF - Page 35
No need to synchronize this function? How mmap work with multiple writers?.
func (i *index) Write(off uin...
New
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@travisjeffery The code in server.go is not consistent with the generated grpc code.
I see that the code in the git repo was updated, bu...
New
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When trying to generate the protobuf .go file, I receive this error:
Unknown flag: --go_opt
libprotoc 3.12.3
MacOS 11.3.1
Googling ...
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page 20: … protoc command…
I had to additionally run the following go get commands in order to be able to compile protobuf code using go...
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In Chapter 3, the source for index introduces Config on page 31, followed by more code including tests; Config isn’t introduced until pag...
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This test is broken right out of the box…
— FAIL: TestAgent (7.82s)
agent_test.go:77:
Error Trace: agent_test.go:77
agent_test.go:...
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Hi Travis! Thank you for the cool book! :slight_smile:
I made a list of issues and thought I could post them chapter by chapter. I’m rev...
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Take your Go skills to the next level by learning how to design, develop, and deploy a distributed service. Start from the bare essential...
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When I attempt to go get github.com/tysonmote/gommap I get an error gommap.go:60:15: undefined: mmap_syscall. Has anyone on an M1 mac bee...
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Once deployed, I am not able to access the service outside the prolog pods. I can run the client successfully and access the service from...
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Page 72 shows implementation of the nearestMultiple function. (as per below)
func nearestMultiple(j, k uint64) uint64 {
if...
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Code at the end of page for the WriteALogPackage/internal/log/segment.go
says p, err := s.store.Read(pos), should be ReadAt I think
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Hey y’all, just wanted to provide some context for removing the testing chapters from the table of contents.
For all books PragProg has ...
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Failure with Mutual TLS
Title: Distributed Services with Go (pdf page 85)
Tests fails when server attempts to use mutual TLS (setting t...
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Hey y’all,
If you got the first beta of the book and hit issues make sure you download the second beta that came out last week. The seco...
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Distributed Services With Go -
I went to SecureYourServices folder and executed make gencert. I am getting the following error.
2020/0...
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Hi,
I’m currently reading your book. By doing so, I like to rewrite the code by myself. It helps me to deeply understand how it works.
...
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