From 85c9ea400b402dfcfa6b8b6141ace7c1dbe74f77 Mon Sep 17 00:00:00 2001
From: UdjinM6 <UdjinM6@users.noreply.github.com>
Date: Sat, 8 Jun 2019 14:16:41 +0300
Subject: [PATCH] Throw a bit more descriptive error message on UpgradeDB
 failure on pruned nodes (#2962)

---
 src/llmq/quorums_blockprocessor.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/llmq/quorums_blockprocessor.cpp b/src/llmq/quorums_blockprocessor.cpp
index 302600fe6..e7ddde295 100644
--- a/src/llmq/quorums_blockprocessor.cpp
+++ b/src/llmq/quorums_blockprocessor.cpp
@@ -271,6 +271,10 @@ void CQuorumBlockProcessor::UpgradeDB()
     if (chainActive.Height() >= Params().GetConsensus().DIP0003EnforcementHeight) {
         auto pindex = chainActive[Params().GetConsensus().DIP0003EnforcementHeight];
         while (pindex) {
+            if (fPruneMode && !(pindex->nStatus & BLOCK_HAVE_DATA)) {
+                // Too late, we already pruned blocks we needed to reprocess commitments
+                throw std::runtime_error(std::string(__func__) + ": Quorum Commitments DB upgrade failed, you need to re-download the blockchain");
+            }
             CBlock block;
             bool r = ReadBlockFromDisk(block, pindex, Params().GetConsensus());
             assert(r);