diff --git a/src/apps/dbutils/cmd_delete.cpp b/src/apps/dbutils/cmd_delete.cpp
index e95a8fb..058f285 100644
--- a/src/apps/dbutils/cmd_delete.cpp
+++ b/src/apps/dbutils/cmd_delete.cpp
@@ -68,11 +68,13 @@ void cmd_delete(const std::vector<std::string> &subArgs) {
 
     {
         auto txn = env.txn_rw();
+        negentropy::storage::BTreeLMDB negentropyStorage(txn, negentropyDbi, 0);
 
         for (auto levId : levIds) {
-            deleteEvent(txn, levId);
+            deleteEvent(txn, levId, negentropyStorage);
         }
 
+        negentropyStorage.flush();
         txn.commit();
     }
 }
diff --git a/src/apps/relay/RelayCron.cpp b/src/apps/relay/RelayCron.cpp
index d78a17b..d15709f 100644
--- a/src/apps/relay/RelayCron.cpp
+++ b/src/apps/relay/RelayCron.cpp
@@ -107,13 +107,15 @@ void RelayServer::runCron() {
 
         if (expiredLevIds.size() > 0) {
             auto txn = env.txn_rw();
+            negentropy::storage::BTreeLMDB negentropyStorage(txn, negentropyDbi, 0);
 
             uint64_t numDeleted = 0;
 
             for (auto levId : expiredLevIds) {
-                if (deleteEvent(txn, levId)) numDeleted++;
+                if (deleteEvent(txn, levId, negentropyStorage)) numDeleted++;
             }
 
+            negentropyStorage.flush();
             txn.commit();
 
             if (numDeleted) LI << "Deleted " << numDeleted << " events (ephemeral=" << numEphemeral << " expired=" << numExpired << ")";
diff --git a/src/apps/relay/RelayIngester.cpp b/src/apps/relay/RelayIngester.cpp
index 23ba371..ebeb31d 100644
--- a/src/apps/relay/RelayIngester.cpp
+++ b/src/apps/relay/RelayIngester.cpp
@@ -132,7 +132,7 @@ void RelayServer::ingesterProcessClose(lmdb::txn &txn, uint64_t connId, const ta
 
 void RelayServer::ingesterProcessNegentropy(lmdb::txn &txn, Decompressor &decomp, uint64_t connId, const tao::json::value &arr) {
     if (arr.at(0) == "NEG-OPEN") {
-        if (arr.get_array().size() < 5) throw herr("negentropy query missing elements");
+        if (arr.get_array().size() < 4) throw herr("negentropy query missing elements");
 
         NostrFilterGroup filter;
         auto maxFilterLimit = cfg().relay__negentropy__maxSyncEvents + 1;
diff --git a/src/apps/relay/RelayNegentropy.cpp b/src/apps/relay/RelayNegentropy.cpp
index 3da267c..83936d4 100644
--- a/src/apps/relay/RelayNegentropy.cpp
+++ b/src/apps/relay/RelayNegentropy.cpp
@@ -42,6 +42,20 @@ struct NegentropyViews {
     }
 
     bool addStatelessView(uint64_t connId, const SubId &subId, Subscription &&sub) {
+        {
+            auto *existing = findView(connId, subId);
+            if (existing) removeView(connId, subId);
+        }
+
+        auto res = conns.try_emplace(connId);
+        auto &connViews = res.first->second;
+
+        if (connViews.size() >= cfg().relay__maxSubsPerConnection) {
+            return false;
+        }
+
+        connViews.try_emplace(subId, UserView{ StatelessView{ std::move(sub), } });
+
         return true;
     }
 
@@ -205,15 +219,16 @@ void RelayServer::runNegentropy(ThreadPool<MsgNegentropy>::Thread &thr) {
                     continue;
                 }
 
-                auto *view = std::get_if<NegentropyViews::MemoryView>(userView);
-                if (!view) throw herr("bad variant, expected memory view");
-
-                if (!view->storageVector.sealed) {
-                    sendNoticeError(msg->connId, "negentropy error: got NEG-MSG before NEG-OPEN complete");
-                    continue;
+                if (auto *view = std::get_if<NegentropyViews::MemoryView>(userView)) {
+                    if (!view->storageVector.sealed) {
+                        sendNoticeError(msg->connId, "negentropy error: got NEG-MSG before NEG-OPEN complete");
+                        continue;
+                    }
+                    handleReconcile(msg->connId, msg->subId, view->storageVector, msg->negPayload);
+                } else if (std::get_if<NegentropyViews::StatelessView>(userView)) {
+                    negentropy::storage::BTreeLMDB storage(txn, negentropyDbi, 0);
+                    handleReconcile(msg->connId, msg->subId, storage, msg->negPayload);
                 }
-
-                handleReconcile(msg->connId, msg->subId, view->storageVector, msg->negPayload);
             } else if (auto msg = std::get_if<MsgNegentropy::NegClose>(&newMsg.msg)) {
                 queries.removeSub(msg->connId, msg->subId);
                 views.removeView(msg->connId, msg->subId);
diff --git a/src/events.cpp b/src/events.cpp
index 34cb516..ee64ee2 100644
--- a/src/events.cpp
+++ b/src/events.cpp
@@ -1,6 +1,5 @@
 #include <openssl/sha.h>
 #include <negentropy.h>
-#include <negentropy/storage/BTreeLMDB.h>
 
 #include "events.h"
 
@@ -229,14 +228,12 @@ std::string_view getEventJson(lmdb::txn &txn, Decompressor &decomp, uint64_t lev
 
 
 
-bool deleteEvent(lmdb::txn &txn, uint64_t levId) {
+bool deleteEvent(lmdb::txn &txn, uint64_t levId, negentropy::storage::BTreeLMDB &negentropyStorage) {
     auto view = env.lookup_Event(txn, levId);
     if (!view) return false;
     auto *flat = view->flat_nested();
 
-    negentropy::storage::BTreeLMDB negentropyStorage(txn, negentropyDbi, 0);
     negentropyStorage.erase(flat->created_at(), sv(flat->id()));
-    negentropyStorage.flush();
 
     bool deleted = env.dbi_EventPayload.del(txn, lmdb::to_sv<uint64_t>(levId));
     env.delete_Event(txn, levId);
@@ -340,7 +337,7 @@ void writeEvents(lmdb::txn &txn, std::vector<EventToWrite> &evs, uint64_t logLev
 
             // Deletions happen after event was written to ensure levIds are not reused
 
-            for (auto levId : levIdsToDelete) deleteEvent(txn, levId);
+            for (auto levId : levIdsToDelete) deleteEvent(txn, levId, negentropyStorage);
             levIdsToDelete.clear();
         }
 
diff --git a/src/events.h b/src/events.h
index d05bc71..9191397 100644
--- a/src/events.h
+++ b/src/events.h
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <secp256k1_schnorrsig.h>
+#include <negentropy/storage/BTreeLMDB.h>
 
 #include "golpe.h"
 
@@ -109,4 +110,4 @@ struct EventToWrite {
 
 
 void writeEvents(lmdb::txn &txn, std::vector<EventToWrite> &evs, uint64_t logLevel = 1);
-bool deleteEvent(lmdb::txn &txn, uint64_t levId);
+bool deleteEvent(lmdb::txn &txn, uint64_t levId, negentropy::storage::BTreeLMDB &negentropyStorage);
diff --git a/src/filters.h b/src/filters.h
index e555e4c..b849494 100644
--- a/src/filters.h
+++ b/src/filters.h
@@ -200,7 +200,7 @@ struct NostrFilter {
     }
 
     bool isFullDbQuery() {
-        return !ids && !authors && !kinds && tags.size() == 0 && limit == MAX_U64;
+        return !ids && !authors && !kinds && tags.size() == 0;
     }
 };
 
diff --git a/test/cfgs/syncTest1.conf b/test/cfgs/syncTest1.conf
new file mode 100644
index 0000000..e587a38
--- /dev/null
+++ b/test/cfgs/syncTest1.conf
@@ -0,0 +1,11 @@
+db = "./strfry-db-test-1/"
+
+events {
+    rejectEventsOlderThanSeconds = 9999999999
+}
+
+relay {
+    port = 40551
+
+    #logging { dumpInAll = true }
+}
diff --git a/test/cfgs/syncTest2.conf b/test/cfgs/syncTest2.conf
new file mode 100644
index 0000000..576f6f1
--- /dev/null
+++ b/test/cfgs/syncTest2.conf
@@ -0,0 +1,9 @@
+db = "./strfry-db-test-2/"
+
+events {
+    rejectEventsOlderThanSeconds = 9999999999
+}
+
+relay {
+    port = 40552
+}
diff --git a/test/strfry.conf b/test/cfgs/writeTest.conf
similarity index 100%
rename from test/strfry.conf
rename to test/cfgs/writeTest.conf
diff --git a/test/syncTest.pl b/test/syncTest.pl
new file mode 100755
index 0000000..c2943ce
--- /dev/null
+++ b/test/syncTest.pl
@@ -0,0 +1,86 @@
+#!/usr/bin/env perl
+
+## zstdcat ../nostr-dumps/nostr-wellorder-early-500k-v1.jsonl.zst | head -100000 | perl test/syncTest.pl 1 1 10000 '{}'
+
+use strict;
+
+my $prob1 = shift // 1;
+my $prob2 = shift // 1;
+my $prob3 = shift // 98;
+my $filter = shift // '{}';
+
+{
+    my $total = $prob1 + $prob2 + $prob3;
+    die "zero prob" if $total == 0;
+    $prob1 = $prob1 / $total;
+    $prob2 = $prob2 / $total;
+    $prob3 = $prob3 / $total;
+}
+
+srand($ENV{SEED} || 0);
+system("mkdir -p strfry-db-test-1 strfry-db-test-2");
+system("rm -f strfry-db-test-1/data.mdb strfry-db-test-2/data.mdb");
+
+
+my $ids1 = {};
+my $ids2 = {};
+
+{
+    open(my $infile1, '|-', "./strfry --config test/cfgs/syncTest1.conf import");
+    open(my $infile2, '|-', "./strfry --config test/cfgs/syncTest2.conf import");
+
+    while (<STDIN>) {
+        /"id":"(\w+)"/ || next;
+        my $id = $1;
+
+        my $modeRnd = rand();
+
+        if ($modeRnd < $prob1) {
+            print $infile1 $_;
+            $ids1->{$id} = 1;
+        } elsif ($modeRnd < $prob1 + $prob2) {
+            print $infile2 $_;
+            $ids2->{$id} = 1;
+        } else {
+            print $infile1 $_;
+            print $infile2 $_;
+            $ids1->{$id} = 1;
+            $ids2->{$id} = 1;
+        }
+    }
+}
+
+
+withRelay(sub {
+    system("./strfry --config test/cfgs/syncTest2.conf sync ws://127.0.0.1:40551 --dir both --filter '$filter'");
+});
+
+my $hash1 = `./strfry --config test/cfgs/syncTest1.conf export | perl test/dumbFilter.pl '$filter' | sort | sha256sum`;
+my $hash2 = `./strfry --config test/cfgs/syncTest2.conf export | perl test/dumbFilter.pl '$filter' | sort | sha256sum`;
+
+die "hashes differ" unless $hash1 eq $hash2;
+
+print "OK.\n";
+
+
+sub withRelay {
+    my $cb = shift;
+
+    my $relayPid = startRelay();
+
+    $cb->();
+
+    kill 'KILL', $relayPid;
+    wait;
+}
+
+sub startRelay {
+    my $pid = fork();
+
+    if (!$pid) {
+        exec("./strfry --config test/cfgs/syncTest1.conf relay") || die "couldn't exec strfry";
+    }
+
+    sleep 1; ## FIXME
+    return $pid;
+}
diff --git a/test/writeTest.pl b/test/writeTest.pl
index 9d7e3be..d5f387d 100644
--- a/test/writeTest.pl
+++ b/test/writeTest.pl
@@ -250,7 +250,7 @@ sub doTest {
     my $finalEventIds = [];
 
     {
-        open(my $fh, '-|', './strfry --config test/strfry.conf export 2>/dev/null') || die "$!";
+        open(my $fh, '-|', './strfry --config test/cfgs/writeTest.conf export 2>/dev/null') || die "$!";
         while(<$fh>) {
             push @$finalEventIds, decode_json($_)->{id};
         }
@@ -276,7 +276,7 @@ sub addEvent {
 
     my $eventJson = `cat test-eventXYZ.json`;
 
-    system(qq{ <test-eventXYZ.json ./strfry --config test/strfry.conf import 2>/dev/null });
+    system(qq{ <test-eventXYZ.json ./strfry --config test/cfgs/writeTest.conf import 2>/dev/null });
 
     system(qq{ rm test-eventXYZ.json });