glusterd: cksum mismatch on upgrading to latest gluster

Issue:
In gluster versions less than 7, the checksums were calculated
whether or not the quota is enabled or not, and that cksum value
was also getting stored in the quota.cksum file. But, from gluster
7 version onwards cksum was calculated only if the quota is enabled.
Due to this, the cksums in quota.cksum files differ after upgrading.

Fix:
Added a check to see if the OP_VERSION is less than 7 then, follow
the previous method otherwise, move as per the latest changes for
cksum calculation.

This changes for the cksum calculation was done in
this commit : https://github.com/gluster/glusterfs/commit/3b5eb592f5

Updates: #1332

Change-Id: I7a95e5e5f4d4be4983fb7816225bf9187856c003
Signed-off-by: nik-redhat <nladha@redhat.com>
(cherry picked from commit 865cca1190e233381f975ff36118f46e29477dcf)
Signed-off-by: nik-redhat <nladha@redhat.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.c b/xlators/mgmt/glusterd/src/glusterd-utils.c
index 62fefe2de0d..deec3681e2c 100644
--- a/xlators/mgmt/glusterd/src/glusterd-utils.c
+++ b/xlators/mgmt/glusterd/src/glusterd-utils.c
@@ -2745,6 +2745,15 @@ glusterd_volume_compute_cksum(glusterd_volinfo_t *volinfo, char *cksum_path,
             ret = -1;
             goto out;
         }
+    } else if (priv->op_version < GD_OP_VERSION_7_0) {
+        ret = get_checksum_for_path(filepath, &cksum, priv->op_version);
+        if (ret) {
+            gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_CKSUM_GET_FAIL,
+                   "unable to get "
+                   "checksum for path: %s",
+                   filepath);
+            goto out;
+        }
     }
 
     ret = get_checksum_for_file(fd, &cksum, priv->op_version);