raft: clean up panic in log.go

This commit is contained in:
Xiang Li 2014-11-24 09:01:25 -08:00
parent f3cef87c69
commit bc0e72acb9

View File

@ -46,7 +46,7 @@ type raftLog struct {
func newLog(storage Storage) *raftLog {
if storage == nil {
panic("storage must not be nil")
log.Panic("storage must not be nil")
}
log := &raftLog{
storage: storage,
@ -93,7 +93,7 @@ func (l *raftLog) maybeAppend(index, logTerm, committed uint64, ents ...pb.Entry
func (l *raftLog) append(after uint64, ents ...pb.Entry) uint64 {
if after < l.committed {
log.Panicf("appending after %d, but already committed through %d", after, l.committed)
log.Panicf("after(%d) out of range [committed(%d)]", after, l.committed)
}
if after < l.unstable {
// The log is being truncated to before our current unstable
@ -170,7 +170,7 @@ func (l *raftLog) commitTo(tocommit uint64) {
// never decrease commit
if l.committed < tocommit {
if l.lastIndex() < tocommit {
panic("committed out of range")
log.Panicf("tocommit(%d) is out of range [lastIndex(%d)]", tocommit, l.lastIndex())
}
l.committed = tocommit
}
@ -181,14 +181,14 @@ func (l *raftLog) appliedTo(i uint64) {
return
}
if l.committed < i || i < l.applied {
log.Panicf("applied[%d] is out of range [prevApplied(%d), committed(%d)]", i, l.applied, l.committed)
log.Panicf("applied(%d) is out of range [prevApplied(%d), committed(%d)]", i, l.applied, l.committed)
}
l.applied = i
}
func (l *raftLog) stableTo(i uint64) {
if i < l.unstable || i+1-l.unstable > uint64(len(l.unstableEnts)) {
log.Panicf("stableTo(%d) is out of range (unstable=%d, len(unstableEnts)=%d)",
log.Panicf("stableTo(%d) is out of range [unstable(%d), len(unstableEnts)(%d)]",
i, l.unstable, len(l.unstableEnts))
}
l.unstableEnts = l.unstableEnts[i+1-l.unstable:]