From 164c9586ae3b00128dbcea7791fc6178ae82b3af Mon Sep 17 00:00:00 2001 From: shishir gowda Date: Mon, 25 Feb 2013 10:02:15 +0530 Subject: cluster/distribute: Preserve file size during rebalance migration If holes are encountered, then we do not write these to the dst, which sometimes causes file size to be lesser than src. Data is not corrupted, as when non-zero reads are received, we do write that data. Calling a truncrate to give file size to prevent it from being truncated to less than src in case the file end has holes. Thanks to Brian Foster for providing the test case Change-Id: I3cdd143b63ec8d797273d76189dff8b05eb9e551 BUG: 915554 Signed-off-by: shishir gowda Reviewed-on: http://review.gluster.org/4574 Tested-by: Gluster Build System Reviewed-by: Anand Avati --- xlators/cluster/dht/src/dht-rebalance.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'xlators/cluster/dht/src/dht-rebalance.c') diff --git a/xlators/cluster/dht/src/dht-rebalance.c b/xlators/cluster/dht/src/dht-rebalance.c index 0652a7aa7..866e38dc7 100644 --- a/xlators/cluster/dht/src/dht-rebalance.c +++ b/xlators/cluster/dht/src/dht-rebalance.c @@ -300,6 +300,12 @@ __dht_rebalance_create_dst_file (xlator_t *to, xlator_t *from, loc_t *loc, struc goto out; } + ret = syncop_ftruncate (to, fd, stbuf->ia_size); + if (ret < 0) + gf_log (this->name, GF_LOG_ERROR, + "ftruncate failed for %s on %s (%s)", + loc->path, to->name, strerror (errno)); + ret = syncop_fsetattr (to, fd, stbuf, (GF_SET_ATTR_UID | GF_SET_ATTR_GID), NULL, NULL); -- cgit