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https://issues.apache.org/jira/browse/BEAM-10310?focusedWorklogId=457438&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-457438
]
ASF GitHub Bot logged work on BEAM-10310:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 10/Jul/20 22:45
Start Date: 10/Jul/20 22:45
Worklog Time Spent: 10m
Work Description: youngoli commented on a change in pull request #12215:
URL: https://github.com/apache/beam/pull/12215#discussion_r453109313
##########
File path: sdks/go/pkg/beam/io/synthetic/source.go
##########
@@ -124,8 +125,8 @@ func (fn *sourceFn) Setup() {
// ProcessElement creates a number of random elements based on the restriction
// tracker received. Each element is a random byte slice key and value, in the
// form of KV<[]byte, []byte>.
-func (fn *sourceFn) ProcessElement(rt *offsetrange.Tracker, config
SourceConfig, emit func([]byte, []byte)) error {
- for i := rt.Rest.Start; rt.TryClaim(i) == true; i++ {
+func (fn *sourceFn) ProcessElement(rt *sdf.LockRTracker, _ SourceConfig, emit
func([]byte, []byte)) error {
+ for i := rt.Rt.(*offsetrange.Tracker).Rest.Start; rt.TryClaim(i) ==
true; i++ {
Review comment:
Hmm, that's a good point. I didn't think about it much because it was
fine before, but yeah this wouldn't work now. A split could theoretically be
happening while that line is being called, and the tracker would be modified.
I'll try adding a getter.
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Issue Time Tracking
-------------------
Worklog Id: (was: 457438)
Time Spent: 40m (was: 0.5h)
> Add thread-safe restriction trackers.
> -------------------------------------
>
> Key: BEAM-10310
> URL: https://issues.apache.org/jira/browse/BEAM-10310
> Project: Beam
> Issue Type: Sub-task
> Components: sdk-go
> Reporter: Daniel Oliveira
> Assignee: Daniel Oliveira
> Priority: P2
> Time Spent: 40m
> Remaining Estimate: 0h
>
> This specifically means adding a RT wrapper that adds thread-safety to a
> restriction tracker, and updating existing SDFs to use that thread-safe
> wrapper.
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