From: Sage Weil <sage@redhat.com>
Date: Tue, 23 May 2017 20:35:30 +0000 (-0400)
Subject: mon/PGMap: count 'unknown' pgs
X-Git-Tag: ses5-milestone6~8^2~19^2~24
X-Git-Url: http://git.apps.os.sepia.ceph.com/?a=commitdiff_plain;h=2f881dbf2c81d73e531d64741acf1a0f9b5b19a5;p=ceph.git

mon/PGMap: count 'unknown' pgs

Also, count "not active" (inactive) pgs instead of active so that we
list "bad" things consistently, and so that 'inactive' is a separate
bucket of pgs than the 'unknown' ones.

Signed-off-by: Sage Weil <sage@redhat.com>
---

diff --git a/src/mon/PGMap.cc b/src/mon/PGMap.cc
index 018a31255df7b..ab3a639033feb 100644
--- a/src/mon/PGMap.cc
+++ b/src/mon/PGMap.cc
@@ -25,7 +25,7 @@ MEMPOOL_DEFINE_OBJECT_FACTORY(PGMap::Incremental, pgmap_inc, pgmap);
 void PGMapDigest::encode(bufferlist& bl, uint64_t features) const
 {
   // NOTE: see PGMap::encode_digest
-  ENCODE_START(4, 1, bl);
+  ENCODE_START(5, 1, bl);
   ::encode(num_pg, bl);
   ::encode(num_pg_active, bl);
   ::encode(num_osd, bl);
@@ -41,12 +41,13 @@ void PGMapDigest::encode(bufferlist& bl, uint64_t features) const
   ::encode(per_pool_sum_deltas_stamps, bl);
   ::encode(pg_sum_delta, bl, features);
   ::encode(stamp_delta, bl);
+  ::encode(num_pg_unknown, bl);
   ENCODE_FINISH(bl);
 }
 
 void PGMapDigest::decode(bufferlist::iterator& p)
 {
-  DECODE_START(4, p);
+  DECODE_START(5, p);
   ::decode(num_pg, p);
   ::decode(num_pg_active, p);
   ::decode(num_osd, p);
@@ -76,6 +77,9 @@ void PGMapDigest::decode(bufferlist::iterator& p)
     ::decode(pg_sum_delta, p);
     ::decode(stamp_delta, p);
   }
+  if (struct_v >= 5) {
+    ::decode(num_pg_unknown, p);
+  }
   DECODE_FINISH(p);
 }
 
@@ -83,6 +87,7 @@ void PGMapDigest::dump(Formatter *f) const
 {
   f->dump_unsigned("num_pg", num_pg);
   f->dump_unsigned("num_pg_active", num_pg_active);
+  f->dump_unsigned("num_pg_unknown", num_pg_unknown);
   f->dump_unsigned("num_osd", num_osd);
   f->dump_object("pool_sum", pg_sum);
   f->dump_object("osd_sum", osd_sum);
@@ -187,14 +192,31 @@ void PGMapDigest::print_summary(Formatter *f, ostream *out) const
   }
 
   bool pad = false;
-  if (num_pg_active < num_pg) {
-    float p = (float)num_pg_active / (float)num_pg;
+
+  if (num_pg_unknown > 0) {
+    float p = (float)num_pg_unknown / (float)num_pg;
+    if (f) {
+      f->dump_float("unknown_pgs_ratio", p);
+    } else {
+      char b[20];
+      snprintf(b, sizeof(b), "%.3lf", p * 100.0);
+      *out << b << "% pgs unknown\n";
+      pad = true;
+    }
+  }
+
+  int num_pg_inactive = num_pg - num_pg_active - num_pg_unknown;
+  if (num_pg_inactive > 0) {
+    float p = (float)num_pg_inactive / (float)num_pg;
     if (f) {
-      f->dump_float("active_pgs_ratio", p);
+      f->dump_float("inactive_pgs_ratio", p);
     } else {
+      if (pad) {
+        *out << "             ";
+      }
       char b[20];
-      snprintf(b, sizeof(b), "%.3f", (1.0 - p) * 100.0);
-      *out << b << "% pgs inactive\n";
+      snprintf(b, sizeof(b), "%.3f", p * 100.0);
+      *out << b << "% pgs not active\n";
       pad = true;
     }
   }
@@ -1175,6 +1197,7 @@ void PGMap::calc_stats()
 {
   num_pg = 0;
   num_pg_active = 0;
+  num_pg_unknown = 0;
   num_osd = 0;
   pg_pool_sum.clear();
   num_pg_by_pool.clear();
@@ -1302,6 +1325,9 @@ void PGMap::stat_pg_add(const pg_t &pgid, const pg_stat_t &s,
   if (s.state & PG_STATE_ACTIVE) {
     ++num_pg_active;
   }
+  if (s.state == 0) {
+    ++num_pg_unknown;
+  }
 
   if (sameosds)
     return;
@@ -1360,6 +1386,9 @@ void PGMap::stat_pg_sub(const pg_t &pgid, const pg_stat_t &s,
   if (s.state & PG_STATE_ACTIVE) {
     --num_pg_active;
   }
+  if (s.state == 0) {
+    --num_pg_unknown;
+  }
 
   if (sameosds)
     return;
diff --git a/src/mon/PGMap.h b/src/mon/PGMap.h
index 01f78062bc59a..a33bfe6bd5351 100644
--- a/src/mon/PGMap.h
+++ b/src/mon/PGMap.h
@@ -44,6 +44,7 @@ public:
   // aggregate state, populated by PGMap child
   int64_t num_pg = 0, num_osd = 0;
   int64_t num_pg_active = 0;
+  int64_t num_pg_unknown = 0;
   mempool::pgmap::unordered_map<int32_t,pool_stat_t> pg_pool_sum;
   mempool::pgmap::map<int64_t,int64_t> num_pg_by_pool;
   pool_stat_t pg_sum;