diff options
| author | Joseph Fernandes <josferna@redhat.com> | 2015-03-18 19:55:31 +0530 |
|---|---|---|
| committer | Vijay Bellur <vbellur@redhat.com> | 2015-03-19 01:31:29 -0700 |
| commit | b4a0db5ee3b827268fe1aeeed32ad7d417460c50 (patch) | |
| tree | d79b3182062aa5c1b50eee24b0866d47fa7824c3 /libglusterfs/src | |
| parent | a1755ee2765f3d1c9c26d51a49ad63d133932710 (diff) | |
Adding ChangeTimeRecorder(CTR) Xlator to GlusterFS
**********************************************************************
ChangeTimeRecorder(CTR) Xlator |
**********************************************************************
ChangeTimeRecorder(CTR) is server side xlator(translator) which sits
just above posix xlator. The main role of this xlator is to record the
access/write patterns on a file residing the brick. It records the
read(only data) and write(data and metadata) times and also count on
how many times a file is read or written. This xlator also captures
the hard links to a file(as its required by data tiering to move
files).
CTR Xlator is the consumer of libgfdb.
To Enable/Disable CTR Xlator:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
gluster volume set <volume-name> features.ctr-enabled {on/off}
To Enable/Disable Frequency Counter Recording in CTR Xlator:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
gluster volume set <volume-name> features.record-counters {on/off}
Change-Id: I5d3cf056af61ac8e3f8250321a27cb240a214ac2
BUG: 1194753
Signed-off-by: Joseph Fernandes <josferna@redhat.com>
Reviewed-on: http://review.gluster.org/9935
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Diffstat (limited to 'libglusterfs/src')
| -rw-r--r-- | libglusterfs/src/glusterfs.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/libglusterfs/src/glusterfs.h b/libglusterfs/src/glusterfs.h index adcff8cd274..9c9d9648a92 100644 --- a/libglusterfs/src/glusterfs.h +++ b/libglusterfs/src/glusterfs.h @@ -206,6 +206,10 @@ #define DHT_SKIP_NON_LINKTO_UNLINK "unlink-only-if-dht-linkto-file" #define DHT_SKIP_OPEN_FD_UNLINK "dont-unlink-for-open-fd" +/*CTR requires inode dentry link count from posix*/ +#define CTR_RESPONSE_LINK_COUNT_XDATA "ctr_response_link_count" +#define CTR_REQUEST_LINK_COUNT_XDATA "ctr_request_link_count" + #define GF_LOG_LRU_BUFSIZE_DEFAULT 5 #define GF_LOG_LRU_BUFSIZE_MIN 0 #define GF_LOG_LRU_BUFSIZE_MAX 20 @@ -451,11 +455,11 @@ struct _glusterfs_graph { struct timeval dob; void *first; void *top; /* selected by -n */ + uint32_t leaf_count; int xl_count; int id; /* Used in logging */ int used; /* Should be set when fuse gets first CHILD_UP */ - uint32_t leaf_count; uint32_t volfile_checksum; }; typedef struct _glusterfs_graph glusterfs_graph_t; |