We are already tracking write position.

1 files changed, 2 insertions, 4 deletions

diff --git a/searchlib/src/vespa/searchlib/transactionlog/domainpart.cpp b/searchlib/src/vespa/searchlib/transactionlog/domainpart.cpp
index 729a3171556..96e75c35a81 100644
--- a/searchlib/src/vespa/searchlib/transactionlog/domainpart.cpp
+++ b/searchlib/src/vespa/searchlib/transactionlog/domainpart.cpp
@@ -542,14 +542,12 @@ DomainPart::write(FastOS_FileInterface &file, const IChunk & chunk)
     os << realEncoding.getRaw();  //Patching real encoding
     os << uint32_t(end - (begin + sizeof(uint32_t) + sizeof(uint8_t))); // Patching actual size.
     os.wp(end);
-    int64_t lastKnownGoodPos(file.GetPosition());
     LockGuard guard(_writeLock);
     if ( ! file.CheckedWrite(os.data(), os.size()) ) {
-        throw runtime_error(handleWriteError("Failed writing the entry.", file, lastKnownGoodPos, chunk.range(), os.size()));
+        throw runtime_error(handleWriteError("Failed writing the entry.", file, byteSize(), chunk.range(), os.size()));
     }
     _writtenSerial = chunk.range().to();
-    assert(size_t(lastKnownGoodPos) == byteSize());
-    _byteSize.store(lastKnownGoodPos + os.size(), std::memory_order_release);
+    _byteSize.fetch_add(os.size(), std::memory_order_release);
 }
 
 bool