debug/io-stats: Track path of operations in FOP samples

Summary:
- This diff adds the ability to track paths in our FOP samples.
- It adds a function called `attach_iosstat_to_inode()` which
  attaches a special struct containing the filename, to the inode.
- This diff attaches a struct, `ios_local` to each frame, and tracks
  paths, locs, fds, and inodes depending on the fop that it is
  executing.
- Operations done on this inode can then reference this path.

Signed-off-by: Shreyas Siravara <sshreyas@fb.com>

Change-Id: Ie43b2193f66d8c7f59b5d07293e07d6120e3b20a
Reviewed-on: http://review.gluster.org/16149
Tested-by: Shreyas Siravara <sshreyas@fb.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Kevin Vigor <kvigor@fb.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>

1 files changed, 73 insertions, 5 deletions

diff --git a/tests/basic/fop-sampling.t b/tests/basic/fop-sampling.t
index cea8aa737c0..44fdb5aa93d 100644
--- a/tests/basic/fop-sampling.t
+++ b/tests/basic/fop-sampling.t
@@ -2,13 +2,27 @@
 #
 
 . $(dirname $0)/../include.rc
+. $(dirname $0)/../nfs.rc
 . $(dirname $0)/../volume.rc
 
-SAMPLE_FILE="$(gluster --print-logdir)/samples/glusterfs_${V0}.samp"
+BRICK_SAMPLES="$(gluster --print-logdir)/samples/glusterfsd__d_backends_${V0}0.samp"
+NFS_SAMPLES="$(gluster --print-logdir)/samples/glusterfs_nfsd.samp"
+
+function check_path {
+        op=$1
+        path=$2
+        file=$3
+        grep $op $file | awk -F, '{print $NF}' | grep $path 2>&1 > /dev/null
+        if [ $? -eq 0 ]; then
+          echo "Y"
+        else
+          echo "N"
+        fi
+}
 
 function print_cnt() {
   local FOP_TYPE=$1
-  local FOP_CNT=$(grep ,${FOP_TYPE} ${SAMPLE_FILE} | wc -l)
+  local FOP_CNT=$(grep ,${FOP_TYPE} ${BRICK_SAMPLES} | wc -l)
   echo $FOP_CNT
 }
 
@@ -42,12 +56,18 @@ TEST $CLI volume create $V0 replica 3 $H0:$B0/${V0}{0,1,2}
 TEST $CLI volume set $V0 nfs.disable off
 TEST $CLI volume set $V0 diagnostics.latency-measurement on
 TEST $CLI volume set $V0 diagnostics.count-fop-hits on
-TEST $CLI volume set $V0 diagnostics.stats-dump-interval 2
+TEST $CLI volume set $V0 diagnostics.stats-dump-interval 5
 TEST $CLI volume set $V0 diagnostics.fop-sample-buf-size 65535
 TEST $CLI volume set $V0 diagnostics.fop-sample-interval 1
 TEST $CLI volume set $V0 diagnostics.stats-dnscache-ttl-sec 3600
-
 TEST $CLI volume start $V0
+
+>${NFS_SAMPLES}
+>${BRICK_SAMPLES}
+
+#################
+# Basic Samples #
+#################
 TEST glusterfs --volfile-id=/$V0 --volfile-server=$H0 $M0 --attribute-timeout=0 --entry-timeout=0
 
 for i in {1..5}
@@ -58,4 +78,52 @@ done
 TEST ls -l $M0
 EXPECT_WITHIN 6 "OK" check_samples
 
-cleanup
+sleep 2
+
+################################
+# Paths in the samples #
+################################
+
+TEST mount_nfs $H0:$V0 $N0
+
+ls $N0 &> /dev/null
+touch $N0/file1
+stat $N0/file1 &> /dev/null
+echo "some data" > $N0/file1
+dd if=/dev/zero of=$N0/file2 bs=1M count=10 conv=fsync
+dd if=/dev/zero of=$N0/file1 bs=1M count=1
+cat $N0/file2 &> /dev/null
+mkdir -p $N0/dir1
+rmdir $N0/dir1
+rm $N0/file1
+rm $N0/file2
+
+EXPECT_WITHIN 10 "Y" check_path CREATE /file1 $BRICK_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path LOOKUP /file1 $BRICK_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path SETATTR /file1 $BRICK_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path WRITE /file1 $BRICK_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path FINODELK /file1 $BRICK_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path ENTRYLK / $BRICK_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path FLUSH /file2 $BRICK_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path TRUNCATE /file1 $BRICK_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path MKDIR /dir1 $BRICK_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path RMDIR /dir1 $BRICK_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path UNLINK /file1 $BRICK_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path UNLINK /file2 $BRICK_SAMPLES
+
+
+EXPECT_WITHIN 10 "Y" check_path CREATE /file1 $NFS_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path LOOKUP /file1 $NFS_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path ACCESS /file1 $NFS_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path SETATTR /file1 $NFS_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path WRITE /file1 $NFS_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path FLUSH /file2 $NFS_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path ACCESS /file2 $NFS_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path READ /file2 $NFS_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path TRUNCATE /file1 $NFS_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path MKDIR /dir1 $NFS_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path RMDIR /dir1 $NFS_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path UNLINK /file1 $NFS_SAMPLES
+EXPECT_WITHIN 10 "Y" check_path UNLINK /file2 $NFS_SAMPLES
+
+cleanup;