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fix: bigtable-rotator bug that prevents it from closing channels #390

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fix: bigtable-rotator bug that prevents it from closing channels #390

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17 changes: 11 additions & 6 deletions go/connection-refresh/btrefresh/bigtable_rotator.go
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Original file line number Diff line number Diff line change
Expand Up @@ -61,20 +61,25 @@ func NewRotatingTable(dialer BtDialer, table string, refresh time.Duration) (*Ro
rt := &RotatingTable{tbl, client, ticker, errors}
go func() {
for range ticker.C {
// Close the old client after waiting a bit
go func() {
oldC := rt.client
time.Sleep(lameduckTime)
oldC.Close()
}()
// save the old client so that we can close it
oldC := rt.client

client, err := dialer()
if err != nil {
errors <- err
continue
}
tbl := client.Open(table)
warmTable(tbl)

rt.client = client
rt.Table = tbl

// Close the old client after waiting a bit
go func() {
time.Sleep(lameduckTime)
oldC.Close()
}()
}
}()
return rt, nil
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