From 895bddc5d4dabd2f05c13c343eb0d7457d6f132f Mon Sep 17 00:00:00 2001
From: Loic Dachary <loic-201408@dachary.org>
Date: Fri, 29 Aug 2014 18:13:08 +0200
Subject: [PATCH] erasure-code: preload the default plugins in the mon

The commit 164f1a1959a863848319585fa752250c7b261381 preloads the
jerasure plugin in the OSD. They must also be preloaded in the mon for
the same reasons.

http://tracker.ceph.com/issues/9273 Fixes: #9273

Signed-off-by: Loic Dachary <loic-201408@dachary.org>
---
 src/ceph_mon.cc      | 19 +++++++++++++++++++
 src/test/mon/mkfs.sh |  4 ++++
 2 files changed, 23 insertions(+)

diff --git a/src/ceph_mon.cc b/src/ceph_mon.cc
index 4e84b4d083163..47b6913b77721 100644
--- a/src/ceph_mon.cc
+++ b/src/ceph_mon.cc
@@ -43,6 +43,8 @@ using namespace std;
 
 #include "include/assert.h"
 
+#include "erasure-code/ErasureCodePlugin.h"
+
 #define dout_subsys ceph_subsys_mon
 
 Monitor *mon = NULL;
@@ -184,6 +186,21 @@ void usage()
   generic_server_usage();
 }
 
+int preload_erasure_code()
+{
+  string directory = g_conf->osd_pool_default_erasure_code_directory;
+  string plugins = g_conf->osd_erasure_code_plugins;
+  stringstream ss;
+  int r = ErasureCodePluginRegistry::instance().preload(plugins,
+							directory,
+							ss);
+  if (r)
+    derr << ss.str() << dendl;
+  else
+    dout(10) << ss.str() << dendl;
+  return r;
+}
+
 int main(int argc, const char **argv) 
 {
   int err;
@@ -416,6 +433,8 @@ int main(int argc, const char **argv)
     }
     common_init_finish(g_ceph_context);
     global_init_chdir(g_ceph_context);
+    if (preload_erasure_code() < -1)
+      prefork.exit(1);
   }
 
   MonitorDBStore *store = new MonitorDBStore(g_conf->mon_data);
diff --git a/src/test/mon/mkfs.sh b/src/test/mon/mkfs.sh
index 33e3fbafefb03..035bb596e15e3 100755
--- a/src/test/mon/mkfs.sh
+++ b/src/test/mon/mkfs.sh
@@ -43,6 +43,7 @@ function mon_mkfs() {
         --id $MON_ID \
         --fsid $fsid \
         --mkfs \
+        --osd-pool-default-erasure-code-directory=.libs \
         --mon-data=$MON_DIR \
         --mon-initial-members=$MON_ID \
         --mon-host=$MONA \
@@ -54,6 +55,7 @@ function mon_run() {
         --id $MON_ID \
         --chdir= \
         --mon-data=$MON_DIR \
+        --osd-pool-default-erasure-code-directory=.libs \
         --log-file=$MON_DIR/log \
         --mon-cluster-log-file=$MON_DIR/log \
         --run-dir=$MON_DIR \
@@ -76,6 +78,7 @@ function auth_none() {
 
     ./ceph-mon \
         --id $MON_ID \
+        --osd-pool-default-erasure-code-directory=.libs \
         --mon-data=$MON_DIR \
         --extract-monmap $MON_DIR/monmap
 
@@ -136,6 +139,7 @@ function makedir() {
     ./ceph-mon \
         --id $MON_ID \
         --mkfs \
+        --osd-pool-default-erasure-code-directory=.libs \
         --mon-data=$toodeep 2>&1 | tee $DIR/makedir.log
     grep 'toodeep.*No such file' $DIR/makedir.log > /dev/null
     rm $DIR/makedir.log