glusterfs.git/xlators/cluster, branch v2.0.5

Do not failover readdir in replicate

2009-07-17T21:17:08+00:00

Backport of http://patches.gluster.com/patch/561/ to release-2.0

Also, the failover version of afr_readdir_cbk is buggy and
crashes when it is called after a failover inevitably

Signed-off-by: Anand V. Avati 

BUG: 150 (AFR readdir should not failover to other subvolume)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=150

Add a random initial offset to the afr round robin index

2009-07-16T07:37:59+00:00

This patch helps to distribute load across an afr cluster
when you have clients with the same access patterns, such
as in benchmarking or map-reduce. By randomly offsetting
the initial read_child_rr, clients should distribute reads
over the afr nodes on average.

A better solution could be to randomly shuffle the children
instead of chosing a different initial offset. This should
average the reads better across the nodes, but I'm not
sure if there are any other consequences to doing this.

Signed-off-by: Anand V. Avati

Return inode number always from the first up subvolume in AFR.

2009-07-09T21:03:36+00:00

Also fixes a bug in the "KLUDGE" part. It was setting lookup_buf
when it should have been setting local->cont.lookup.buf

Signed-off-by: Anand V. Avati

Set timestamps properly when creating missing entries.

2009-07-06T23:14:57+00:00

In AFR self-heal set timestamp of a freshly created missing entry
to that of the source entry.

Signed-off-by: Anand V. Avati

cluster/afr - use different dictionaries for sending xattrop requests to each of the subvolume

2009-06-30T22:24:54+00:00

- This patch fixes bug #29.
  - Using separate copies of dictionaries also eliminates a potential bug in a
    setup consisting of afr with a posix and client, each having io-threads on
    top as children. Since posix_xattrop after performing required operations
    on the xattr array passed in dictionary, sets the result at the same key
    and in the same dictionary passed as input argument,
    there can be race conditions where in the results of the operation on
    posix-child can be sent to the other child as input argument for xattrop,
    which ofcourse is wrong.

Signed-off-by: Anand V. Avati

dht_readdir_cbk: use stat attributes in the READDIRPLUS dirents to

2009-06-26T18:09:24+00:00

Signed-off-by: Anand V. Avati

rename dht_first_up_child to dht_first_up_subvol

2009-06-26T18:09:24+00:00

Signed-off-by: Anand V. Avati

set 'lookup unhashed' mode to be on by default

2009-06-26T18:09:23+00:00

Signed-off-by: Anand V. Avati

local->loc should be filled in dht-mknod()

2009-06-18T22:54:14+00:00

local->loc should be properly filled while creating a linkfile. otherwise
this causes the segfault in underlying client-protocol layer.

Signed-off-by: Anand V. Avati

change the log level of disk full message in dht-diskusage

2009-06-18T19:38:25+00:00

the current msg is getting printed in warning level. Instead changed
it to debug, as the msg specific each node being full is already getting
printed in higher priority, hence this msg looks excessive.

Signed-off-by: Anand V. Avati