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qmp: Make Quorum error events more palatable.

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Insert quorum QMP events documentation alphabetically.

Also change the "ret" errno value by an optional "error" being an strerror(-ret)
in the QUORUM_REPORT_BAD qmp event.

Signed-off-by: Benoit Canet <benoit@irqsave.net>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Benoît Canet 2014-02-22 18:43:41 +01:00 committed by Stefan Hajnoczi
parent a9e6a0cbe2
commit 0c762736df
3 changed files with 46 additions and 40 deletions
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9
block/quorum.c
View file

@ -200,11 +200,14 @@ static void quorum_report_bad(QuorumAIOCB *acb, char *node_name, int ret)
{
QObject *data;
assert(node_name);
data = qobject_from_jsonf("{ 'ret': %d"
", 'node-name': %s"
data = qobject_from_jsonf("{ 'node-name': %s"
", 'sector-num': %" PRId64
", 'sectors-count': %d }",
ret, node_name, acb->sector_num, acb->nb_sectors);
node_name, acb->sector_num, acb->nb_sectors);
if (ret < 0) {
QDict *dict = qobject_to_qdict(data);
qdict_put(dict, "error", qstring_from_str(strerror(-ret)));
}
monitor_protocol_event(QEVENT_QUORUM_REPORT_BAD, data);
qobject_decref(data);
}

75
docs/qmp/qmp-events.txt
View file

@ -225,6 +225,45 @@ Data:
"timestamp": { "seconds": 1368697518, "microseconds": 326866 } }
}
QUORUM_FAILURE
--------------
Emitted by the Quorum block driver if it fails to establish a quorum.
Data:
- "reference": device name if defined else node name.
- "sector-num": Number of the first sector of the failed read operation.
- "sector-count": Failed read operation sector count.
Example:
{ "event": "QUORUM_FAILURE",
"data": { "reference": "usr1", "sector-num": 345435, "sector-count": 5 },
"timestamp": { "seconds": 1344522075, "microseconds": 745528 } }
QUORUM_REPORT_BAD
-----------------
Emitted to report a corruption of a Quorum file.
Data:
- "error": Error message (json-string, optional)
Only present on failure. This field contains a human-readable
error message. There are no semantics other than that the
block layer reported an error and clients should not try to
interpret the error string.
- "node-name": The graph node name of the block driver state.
- "sector-num": Number of the first sector of the failed read operation.
- "sector-count": Failed read operation sector count.
Example:
{ "event": "QUORUM_REPORT_BAD",
"data": { "node-name": "1.raw", "sector-num": 345435, "sector-count": 5 },
"timestamp": { "seconds": 1344522075, "microseconds": 745528 } }
RESET
-----
@ -500,39 +539,3 @@ Example:
Note: If action is "reset", "shutdown", or "pause" the WATCHDOG event is
followed respectively by the RESET, SHUTDOWN, or STOP events.
QUORUM_FAILURE
--------------
Emitted by the Quorum block driver if it fails to establish a quorum.
Data:
- "reference": device name if defined else node name.
- "sector-num": Number of the first sector of the failed read operation.
- "sector-count": Failed read operation sector count.
Example:
{ "event": "QUORUM_FAILURE",
"data": { "reference": "usr1", "sector-num": 345435, "sector-count": 5 },
"timestamp": { "seconds": 1344522075, "microseconds": 745528 } }
QUORUM_REPORT_BAD
-----------------
Emitted to report a corruption of a Quorum file.
Data:
- "ret": The IO return code.
- "node-name": The graph node name of the block driver state.
- "sector-num": Number of the first sector of the failed read operation.
- "sector-count": Failed read operation sector count.
Example:
{ "event": "QUORUM_REPORT_BAD",
"data": { "ret": 0, "node-name": "1.raw", "sector-num": 345435,
"sector-count": 5 },
"timestamp": { "seconds": 1344522075, "microseconds": 745528 } }

2
tests/qemu-iotests/081.out
View file

@ -30,7 +30,7 @@ Testing: -drive file=TEST_DIR/2.IMGFMT,format=IMGFMT,if=none,id=drive2
QMP_VERSION
{"return": {}}
{"return": {}}
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "QUORUM_REPORT_BAD", "data": {"node-name": "", "ret": 0, "sectors-count": 20480, "sector-num": 0}}
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "QUORUM_REPORT_BAD", "data": {"node-name": "", "sectors-count": 20480, "sector-num": 0}}
read 10485760/10485760 bytes at offset 0
10 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
{"return": ""}