Add comment about required lifetime for the CommitChunk.

1 files changed, 1 insertions, 0 deletions

diff --git a/searchlib/src/vespa/searchlib/transactionlog/ichunk.h b/searchlib/src/vespa/searchlib/transactionlog/ichunk.h
index d1de1c9c893..e5daeb810f4 100644
--- a/searchlib/src/vespa/searchlib/transactionlog/ichunk.h
+++ b/searchlib/src/vespa/searchlib/transactionlog/ichunk.h
@@ -48,6 +48,7 @@ public:
     size_t getNumEntries() const { return _numEntries; }
     const CommitChunk & commitChunk() const { return *_commitChunk; }
 private:
+    // CommitChunk is required to ensure we do not reply until committed to the TLS.
     std::unique_ptr<CommitChunk> _commitChunk;
     vespalib::nbostream _os;
     SerialNumRange      _range;