From 956da343253d4355e16c5ab2f105bf66efb4556a Mon Sep 17 00:00:00 2001
From: Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>
Date: Mon, 1 May 2017 21:21:21 +0200
Subject: [PATCH] ceph: log repository IO error

Motivation:
help debugging

Acked-by: Paul Millar
Target: master, 3.1, 3.0
Require-book: no
Require-notes: no
(cherry picked from commit 73f60deb2a5377719ecf382a51f9f0da0e467d1b)
Signed-off-by: Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>
(cherry picked from commit ace6b59de139dc0b9c2a39beaeadd848ed44c591)
Signed-off-by: Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>
---
 .../java/org/dcache/pool/repository/ceph/CephFileStore.java | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/modules/dcache/src/main/java/org/dcache/pool/repository/ceph/CephFileStore.java b/modules/dcache/src/main/java/org/dcache/pool/repository/ceph/CephFileStore.java
index 9ebcb1523ec..a7f2193cc3e 100644
--- a/modules/dcache/src/main/java/org/dcache/pool/repository/ceph/CephFileStore.java
+++ b/modules/dcache/src/main/java/org/dcache/pool/repository/ceph/CephFileStore.java
@@ -19,6 +19,9 @@
 package org.dcache.pool.repository.ceph;
 
 import com.google.common.primitives.Longs;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import diskCacheV111.util.PnfsId;
 import java.io.IOException;
 import java.net.URI;
@@ -46,6 +49,8 @@
  */
 public class CephFileStore implements FileStore {
 
+    protected static final Logger LOGGER = LoggerFactory.getLogger(CephFileStore.class);
+
     /**
      * RADOS objects extended attribute name to store creation time.
      */
@@ -246,6 +251,7 @@ public boolean isOk() {
         try {
             rados.statPool(ctx);
         } catch (RadosException e) {
+            LOGGER.error("Repository health check failed: {}", e.toString());
             return false;
         }
         return true;