From: Igor Fedotov <ifedotov@suse.com>
Date: Tue, 19 Apr 2022 14:43:20 +0000 (+0300)
Subject: test/store_test: enable sporadic full NCB recovery
X-Git-Tag: v18.1.0~896^2~8
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=9544de8147ab56b965c78e73c5ba8439f7845686;p=ceph.git

test/store_test: enable sporadic full NCB recovery

Signed-off-by: Igor Fedotov <igor.fedotov@croit.io>
---

diff --git a/src/common/options/global.yaml.in b/src/common/options/global.yaml.in
index 00eb445acda..fa2a803ee5e 100644
--- a/src/common/options/global.yaml.in
+++ b/src/common/options/global.yaml.in
@@ -4994,6 +4994,14 @@ options:
   desc: Remove allocation info from RocksDB and store the info in a new allocation file
   default: true
   with_legacy: true
+- name: bluestore_debug_inject_allocation_from_file_failure
+  type: float
+  level: dev
+  desc: Enables random error injections when restoring allocation map from file.
+  long_desc: Specifies error injection probability for restoring allocation map from file
+    hence causing full recovery. Intended primarily for testing.
+  default: 0
+  with_legacy: true
 - name: bluestore_fsck_on_umount_deep
   type: bool
   level: dev
diff --git a/src/os/bluestore/BlueStore.cc b/src/os/bluestore/BlueStore.cc
index 873ed43bb51..013f27aa48b 100644
--- a/src/os/bluestore/BlueStore.cc
+++ b/src/os/bluestore/BlueStore.cc
@@ -22,6 +22,8 @@
 
 #include <boost/container/flat_set.hpp>
 #include <boost/algorithm/string.hpp>
+#include <boost/random/mersenne_twister.hpp>
+#include <boost/random/uniform_real.hpp>
 
 #include "include/cpp-btree/btree_set.h"
 
@@ -10050,7 +10052,7 @@ void BlueStore::inject_stray_shared_blob_key(uint64_t sbid)
   string key;
   get_shared_blob_key(sbid, &key);
   bluestore_shared_blob_t persistent(sbid);
-  persistent.ref_map.get(0xdead0000, 0x1000);
+  persistent.ref_map.get(0xdead0000, min_alloc_size);
   bufferlist bl;
   encode(persistent, bl);
   dout(20) << __func__ << " sbid " << sbid
@@ -18613,6 +18615,14 @@ int calc_allocator_image_trailer_size()
 //-----------------------------------------------------------------------------------
 int BlueStore::__restore_allocator(Allocator* allocator, uint64_t *num, uint64_t *bytes)
 {
+  if (cct->_conf->bluestore_debug_inject_allocation_from_file_failure > 0) {
+     boost::mt11213b rng(time(NULL));
+    boost::uniform_real<> ur(0, 1);
+    if (ur(rng) < cct->_conf->bluestore_debug_inject_allocation_from_file_failure) {
+      derr << __func__ << " failure injected." << dendl;
+      return -1;
+    }
+  }
   utime_t start_time = ceph_clock_now();
   BlueFS::FileReader *p_temp_handle = nullptr;
   int ret = bluefs->open_for_read(allocator_dir, allocator_file, &p_temp_handle, false);
diff --git a/src/test/objectstore/store_test.cc b/src/test/objectstore/store_test.cc
index dd95a0bc108..5c339b9e809 100644
--- a/src/test/objectstore/store_test.cc
+++ b/src/test/objectstore/store_test.cc
@@ -10655,6 +10655,8 @@ int main(int argc, char **argv) {
   // set small cache sizes so we see trimming during Synthetic tests
   g_ceph_context->_conf.set_val_or_die("bluestore_cache_size_hdd", "4000000");
   g_ceph_context->_conf.set_val_or_die("bluestore_cache_size_ssd", "4000000");
+  g_ceph_context->_conf.set_val_or_die(
+    "bluestore_debug_inject_allocation_from_file_failure", "0.67"); 
 
   // very short *_max prealloc so that we fall back to async submits
   g_ceph_context->_conf.set_val_or_die("bluestore_blobid_prealloc", "10");