Re: [libvirt] [PATCH 4/9] Add QEMU driver support for job info on migration ops
On Mon, Mar 01, 2010 at 01:02:32PM +, Daniel P. Berrange wrote:
> On Fri, Feb 26, 2010 at 06:51:05PM +0100, Daniel Veillard wrote:
> > On Thu, Feb 18, 2010 at 03:56:10PM +, Daniel P. Berrange wrote:
> > > Introduce support for virDomainGetJobInfo in the QEMU driver. This
> > > allows for monitoring of any API that uses the 'info migrate' monitor
> > > command. ie virDomainMigrate, virDomainSave and virDomainCoreDump
> > >
> > > Unfortunately QEMU does not provide a way to monitor incoming migration
> > > so we can't wire up virDomainRestore yet.
> > >
> > > The virsh tool gets a new command 'domjobinfo' to query status
> > >
> > > * src/qemu/qemu_driver.c: Record virDomainJobInfo and start time
> > > in qemuDomainObjPrivatePtr objects. Add generic shared handler
> > > for calling 'info migrate' with all migration based APIs.
> > > * src/qemu/qemu_monitor_text.c: Fix parsing of 'info migration' reply
> > > * tools/virsh.c: add new 'domjobinfo' command to query progress
> > > ---
> > > src/qemu/qemu_driver.c | 208
> > > +++---
> > > src/qemu/qemu_monitor_text.c |7 +-
> > > tools/virsh.c| 129 ++
> > > 3 files changed, 288 insertions(+), 56 deletions(-)
> > >
> > > diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
> > > index a6dc4f9..b245eb2 100644
> > > --- a/src/qemu/qemu_driver.c
> > > +++ b/src/qemu/qemu_driver.c
> > > @@ -87,6 +87,8 @@ struct _qemuDomainObjPrivate {
> > > int jobActive; /* Non-zero if a job is active. Only 1 job is allowed
> > > at any time
> > > * A job includes *all* monitor commands, even those
> > > just querying
> > > * information, not merely actions */
> > > +virDomainJobInfo jobInfo;
> > > +unsigned long long jobStart;
> > >
> > > qemuMonitorPtr mon;
> > > virDomainChrDefPtr monConfig;
> > > @@ -329,6 +331,8 @@ static int qemuDomainObjBeginJob(virDomainObjPtr obj)
> > > }
> > > }
> > > priv->jobActive = 1;
> > > +priv->jobStart = (now.tv_sec * 1000ull) + (now.tv_usec / 1000);
> > > +memset(&priv->jobInfo, 0, sizeof(priv->jobInfo));
> > >
> > > return 0;
> > > }
> > > @@ -373,6 +377,8 @@ static int qemuDomainObjBeginJobWithDriver(struct
> > > qemud_driver *driver,
> > > }
> > > }
> > > priv->jobActive = 1;
> > > +priv->jobStart = (now.tv_sec * 1000ull) + (now.tv_usec / 1000);
> > > +memset(&priv->jobInfo, 0, sizeof(priv->jobInfo));
> >
> > Hum, I though the time was measured in second in the job strcture, why
> > keep a millisecond timestamp here ? Maybe seconds are too coarse in the
> > API anyway
>
> Yeah, the public API comment was wrong - we were passing milliseconds out
> to the client app, and virsh is processing it as milliseconds.
Ah okay :-) so fix for 1/9 accordingly, and well after all my
comment about units in the API was kind of right ...
Daniel
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Re: [libvirt] [PATCH 4/9] Add QEMU driver support for job info on migration ops
On Fri, Feb 26, 2010 at 06:51:05PM +0100, Daniel Veillard wrote:
> On Thu, Feb 18, 2010 at 03:56:10PM +, Daniel P. Berrange wrote:
> > Introduce support for virDomainGetJobInfo in the QEMU driver. This
> > allows for monitoring of any API that uses the 'info migrate' monitor
> > command. ie virDomainMigrate, virDomainSave and virDomainCoreDump
> >
> > Unfortunately QEMU does not provide a way to monitor incoming migration
> > so we can't wire up virDomainRestore yet.
> >
> > The virsh tool gets a new command 'domjobinfo' to query status
> >
> > * src/qemu/qemu_driver.c: Record virDomainJobInfo and start time
> > in qemuDomainObjPrivatePtr objects. Add generic shared handler
> > for calling 'info migrate' with all migration based APIs.
> > * src/qemu/qemu_monitor_text.c: Fix parsing of 'info migration' reply
> > * tools/virsh.c: add new 'domjobinfo' command to query progress
> > ---
> > src/qemu/qemu_driver.c | 208
> > +++---
> > src/qemu/qemu_monitor_text.c |7 +-
> > tools/virsh.c| 129 ++
> > 3 files changed, 288 insertions(+), 56 deletions(-)
> >
> > diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
> > index a6dc4f9..b245eb2 100644
> > --- a/src/qemu/qemu_driver.c
> > +++ b/src/qemu/qemu_driver.c
> > @@ -87,6 +87,8 @@ struct _qemuDomainObjPrivate {
> > int jobActive; /* Non-zero if a job is active. Only 1 job is allowed
> > at any time
> > * A job includes *all* monitor commands, even those
> > just querying
> > * information, not merely actions */
> > +virDomainJobInfo jobInfo;
> > +unsigned long long jobStart;
> >
> > qemuMonitorPtr mon;
> > virDomainChrDefPtr monConfig;
> > @@ -329,6 +331,8 @@ static int qemuDomainObjBeginJob(virDomainObjPtr obj)
> > }
> > }
> > priv->jobActive = 1;
> > +priv->jobStart = (now.tv_sec * 1000ull) + (now.tv_usec / 1000);
> > +memset(&priv->jobInfo, 0, sizeof(priv->jobInfo));
> >
> > return 0;
> > }
> > @@ -373,6 +377,8 @@ static int qemuDomainObjBeginJobWithDriver(struct
> > qemud_driver *driver,
> > }
> > }
> > priv->jobActive = 1;
> > +priv->jobStart = (now.tv_sec * 1000ull) + (now.tv_usec / 1000);
> > +memset(&priv->jobInfo, 0, sizeof(priv->jobInfo));
>
> Hum, I though the time was measured in second in the job strcture, why
> keep a millisecond timestamp here ? Maybe seconds are too coarse in the
> API anyway
Yeah, the public API comment was wrong - we were passing milliseconds out
to the client app, and virsh is processing it as milliseconds.
>
> > virDomainObjUnlock(obj);
> > qemuDriverLock(driver);
> > @@ -395,6 +401,8 @@ static int ATTRIBUTE_RETURN_CHECK
> > qemuDomainObjEndJob(virDomainObjPtr obj)
> > qemuDomainObjPrivatePtr priv = obj->privateData;
> >
> > priv->jobActive = 0;
> > +priv->jobStart = 0;
> > +memset(&priv->jobInfo, 0, sizeof(priv->jobInfo));
> > virCondSignal(&priv->jobCond);
> >
> > return virDomainObjUnref(obj);
> > @@ -3919,6 +3927,96 @@ cleanup:
> > }
> >
> >
> > +static int
> > +qemuDomainWaitForMigrationComplete(struct qemud_driver *driver,
> > virDomainObjPtr vm)
> > +{
> > +int ret = -1;
> > +int status;
> > +unsigned long long memProcessed;
> > +unsigned long long memRemaining;
> > +unsigned long long memTotal;
> > +qemuDomainObjPrivatePtr priv = vm->privateData;
> > +
> > +priv->jobInfo.type = VIR_DOMAIN_JOB_UNBOUNDED;
> > +
> > +while (priv->jobInfo.type == VIR_DOMAIN_JOB_UNBOUNDED) {
> > +/* Poll every 1/2 second for progress & to allow cancellation */
>
> that's way larger than an human perception window so from
> an UI perspective the user will percieve the time between
> the request and when it takes effect, probably not a big deal
> but could be refined in the future.
Migration still starts immediately, we merely have a 1/2 second delay
for detecting its completion. We need to improve this regardless though
since migraiton is supposed to be seemless !
>
> > +struct timespec ts = { .tv_sec = 0, .tv_nsec = 500 * 1000ull };
> > +struct timeval now;
> > +int rc;
> > +
> > +qemuDomainObjEnterMonitorWithDriver(driver, vm);
>
> ACK,
>
Daniel
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Re: [libvirt] [PATCH 4/9] Add QEMU driver support for job info on migration ops
On Thu, Feb 18, 2010 at 03:56:10PM +, Daniel P. Berrange wrote:
> Introduce support for virDomainGetJobInfo in the QEMU driver. This
> allows for monitoring of any API that uses the 'info migrate' monitor
> command. ie virDomainMigrate, virDomainSave and virDomainCoreDump
>
> Unfortunately QEMU does not provide a way to monitor incoming migration
> so we can't wire up virDomainRestore yet.
>
> The virsh tool gets a new command 'domjobinfo' to query status
>
> * src/qemu/qemu_driver.c: Record virDomainJobInfo and start time
> in qemuDomainObjPrivatePtr objects. Add generic shared handler
> for calling 'info migrate' with all migration based APIs.
> * src/qemu/qemu_monitor_text.c: Fix parsing of 'info migration' reply
> * tools/virsh.c: add new 'domjobinfo' command to query progress
> ---
> src/qemu/qemu_driver.c | 208
> +++---
> src/qemu/qemu_monitor_text.c |7 +-
> tools/virsh.c| 129 ++
> 3 files changed, 288 insertions(+), 56 deletions(-)
>
> diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
> index a6dc4f9..b245eb2 100644
> --- a/src/qemu/qemu_driver.c
> +++ b/src/qemu/qemu_driver.c
> @@ -87,6 +87,8 @@ struct _qemuDomainObjPrivate {
> int jobActive; /* Non-zero if a job is active. Only 1 job is allowed at
> any time
> * A job includes *all* monitor commands, even those just
> querying
> * information, not merely actions */
> +virDomainJobInfo jobInfo;
> +unsigned long long jobStart;
>
> qemuMonitorPtr mon;
> virDomainChrDefPtr monConfig;
> @@ -329,6 +331,8 @@ static int qemuDomainObjBeginJob(virDomainObjPtr obj)
> }
> }
> priv->jobActive = 1;
> +priv->jobStart = (now.tv_sec * 1000ull) + (now.tv_usec / 1000);
> +memset(&priv->jobInfo, 0, sizeof(priv->jobInfo));
>
> return 0;
> }
> @@ -373,6 +377,8 @@ static int qemuDomainObjBeginJobWithDriver(struct
> qemud_driver *driver,
> }
> }
> priv->jobActive = 1;
> +priv->jobStart = (now.tv_sec * 1000ull) + (now.tv_usec / 1000);
> +memset(&priv->jobInfo, 0, sizeof(priv->jobInfo));
Hum, I though the time was measured in second in the job strcture, why
keep a millisecond timestamp here ? Maybe seconds are too coarse in the
API anyway
> virDomainObjUnlock(obj);
> qemuDriverLock(driver);
> @@ -395,6 +401,8 @@ static int ATTRIBUTE_RETURN_CHECK
> qemuDomainObjEndJob(virDomainObjPtr obj)
> qemuDomainObjPrivatePtr priv = obj->privateData;
>
> priv->jobActive = 0;
> +priv->jobStart = 0;
> +memset(&priv->jobInfo, 0, sizeof(priv->jobInfo));
> virCondSignal(&priv->jobCond);
>
> return virDomainObjUnref(obj);
> @@ -3919,6 +3927,96 @@ cleanup:
> }
>
>
> +static int
> +qemuDomainWaitForMigrationComplete(struct qemud_driver *driver,
> virDomainObjPtr vm)
> +{
> +int ret = -1;
> +int status;
> +unsigned long long memProcessed;
> +unsigned long long memRemaining;
> +unsigned long long memTotal;
> +qemuDomainObjPrivatePtr priv = vm->privateData;
> +
> +priv->jobInfo.type = VIR_DOMAIN_JOB_UNBOUNDED;
> +
> +while (priv->jobInfo.type == VIR_DOMAIN_JOB_UNBOUNDED) {
> +/* Poll every 1/2 second for progress & to allow cancellation */
that's way larger than an human perception window so from
an UI perspective the user will percieve the time between
the request and when it takes effect, probably not a big deal
but could be refined in the future.
> +struct timespec ts = { .tv_sec = 0, .tv_nsec = 500 * 1000ull };
> +struct timeval now;
> +int rc;
> +
> +qemuDomainObjEnterMonitorWithDriver(driver, vm);
ACK,
Daniel
--
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http://veillard.com/ | virtualization library http://libvirt.org/
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[libvirt] [PATCH 4/9] Add QEMU driver support for job info on migration ops
Introduce support for virDomainGetJobInfo in the QEMU driver. This
allows for monitoring of any API that uses the 'info migrate' monitor
command. ie virDomainMigrate, virDomainSave and virDomainCoreDump
Unfortunately QEMU does not provide a way to monitor incoming migration
so we can't wire up virDomainRestore yet.
The virsh tool gets a new command 'domjobinfo' to query status
* src/qemu/qemu_driver.c: Record virDomainJobInfo and start time
in qemuDomainObjPrivatePtr objects. Add generic shared handler
for calling 'info migrate' with all migration based APIs.
* src/qemu/qemu_monitor_text.c: Fix parsing of 'info migration' reply
* tools/virsh.c: add new 'domjobinfo' command to query progress
---
src/qemu/qemu_driver.c | 208 +++---
src/qemu/qemu_monitor_text.c |7 +-
tools/virsh.c| 129 ++
3 files changed, 288 insertions(+), 56 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index a6dc4f9..b245eb2 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -87,6 +87,8 @@ struct _qemuDomainObjPrivate {
int jobActive; /* Non-zero if a job is active. Only 1 job is allowed at
any time
* A job includes *all* monitor commands, even those just
querying
* information, not merely actions */
+virDomainJobInfo jobInfo;
+unsigned long long jobStart;
qemuMonitorPtr mon;
virDomainChrDefPtr monConfig;
@@ -329,6 +331,8 @@ static int qemuDomainObjBeginJob(virDomainObjPtr obj)
}
}
priv->jobActive = 1;
+priv->jobStart = (now.tv_sec * 1000ull) + (now.tv_usec / 1000);
+memset(&priv->jobInfo, 0, sizeof(priv->jobInfo));
return 0;
}
@@ -373,6 +377,8 @@ static int qemuDomainObjBeginJobWithDriver(struct
qemud_driver *driver,
}
}
priv->jobActive = 1;
+priv->jobStart = (now.tv_sec * 1000ull) + (now.tv_usec / 1000);
+memset(&priv->jobInfo, 0, sizeof(priv->jobInfo));
virDomainObjUnlock(obj);
qemuDriverLock(driver);
@@ -395,6 +401,8 @@ static int ATTRIBUTE_RETURN_CHECK
qemuDomainObjEndJob(virDomainObjPtr obj)
qemuDomainObjPrivatePtr priv = obj->privateData;
priv->jobActive = 0;
+priv->jobStart = 0;
+memset(&priv->jobInfo, 0, sizeof(priv->jobInfo));
virCondSignal(&priv->jobCond);
return virDomainObjUnref(obj);
@@ -3919,6 +3927,96 @@ cleanup:
}
+static int
+qemuDomainWaitForMigrationComplete(struct qemud_driver *driver,
virDomainObjPtr vm)
+{
+int ret = -1;
+int status;
+unsigned long long memProcessed;
+unsigned long long memRemaining;
+unsigned long long memTotal;
+qemuDomainObjPrivatePtr priv = vm->privateData;
+
+priv->jobInfo.type = VIR_DOMAIN_JOB_UNBOUNDED;
+
+while (priv->jobInfo.type == VIR_DOMAIN_JOB_UNBOUNDED) {
+/* Poll every 1/2 second for progress & to allow cancellation */
+struct timespec ts = { .tv_sec = 0, .tv_nsec = 500 * 1000ull };
+struct timeval now;
+int rc;
+
+qemuDomainObjEnterMonitorWithDriver(driver, vm);
+rc = qemuMonitorGetMigrationStatus(priv->mon,
+ &status,
+ &memProcessed,
+ &memRemaining,
+ &memTotal);
+qemuDomainObjExitMonitorWithDriver(driver, vm);
+
+if (rc < 0) {
+priv->jobInfo.type = VIR_DOMAIN_JOB_FAILED;
+goto cleanup;
+}
+
+if (gettimeofday(&now, NULL) < 0) {
+priv->jobInfo.type = VIR_DOMAIN_JOB_FAILED;
+virReportSystemError(errno, "%s",
+ _("cannot get time of day"));
+goto cleanup;
+}
+priv->jobInfo.timeElapsed =
+((now.tv_sec * 1000ull) + (now.tv_usec / 1000)) -
+priv->jobStart;
+
+switch (status) {
+case QEMU_MONITOR_MIGRATION_STATUS_INACTIVE:
+priv->jobInfo.type = VIR_DOMAIN_JOB_NONE;
+qemuReportError(VIR_ERR_OPERATION_FAILED,
+"%s", _("Migration is not active"));
+break;
+
+case QEMU_MONITOR_MIGRATION_STATUS_ACTIVE:
+priv->jobInfo.dataTotal = memTotal;
+priv->jobInfo.dataRemaining = memRemaining;
+priv->jobInfo.dataProcessed = memProcessed;
+
+priv->jobInfo.memTotal = memTotal;
+priv->jobInfo.memRemaining = memRemaining;
+priv->jobInfo.memProcessed = memProcessed;
+break;
+
+case QEMU_MONITOR_MIGRATION_STATUS_COMPLETED:
+priv->jobInfo.type = VIR_DOMAIN_JOB_COMPLETED;
+ret = 0;
+break;
+
+case QEMU_MONITOR_MIGRATION_STATUS_ERROR:
+priv->jobInfo.type = VIR_DOMAIN_JOB_FAILED;
+qemuReportError(VIR_ERR_OPERATION_FAILED,
+
[libvirt] [PATCH 4/9] Add QEMU driver support for job info on migration ops
Introduce support for virDomainGetJobInfo in the QEMU driver. This
allows for monitoring of any API that uses the 'info migrate' monitor
command. ie virDomainMigrate, virDomainSave and virDomainCoreDump
Unfortunately QEMU does not provide a way to monitor incoming migration
so we can't wire up virDomainRestore yet.
The virsh tool gets a new command 'domjobinfo' to query status
* src/qemu/qemu_driver.c: Record virDomainJobInfo and start time
in qemuDomainObjPrivatePtr objects. Add generic shared handler
for calling 'info migrate' with all migration based APIs.
* src/qemu/qemu_monitor_text.c: Fix parsing of 'info migration' reply
* tools/virsh.c: add new 'domjobinfo' command to query progress
---
src/qemu/qemu_driver.c | 205 +++---
src/qemu/qemu_monitor_text.c |7 +-
tools/virsh.c| 75 +++
3 files changed, 252 insertions(+), 35 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 1e3a8b7..540558f 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -86,6 +86,8 @@ struct _qemuDomainObjPrivate {
int jobActive; /* Non-zero if a job is active. Only 1 job is allowed at
any time
* A job includes *all* monitor commands, even those just
querying
* information, not merely actions */
+virDomainJobInfo jobInfo;
+unsigned long long jobStart;
qemuMonitorPtr mon;
virDomainChrDefPtr monConfig;
@@ -329,6 +331,8 @@ static int qemuDomainObjBeginJob(virDomainObjPtr obj)
}
}
priv->jobActive = 1;
+priv->jobStart = (now.tv_sec * 1000ull) + (now.tv_usec / 1000);
+memset(&priv->jobInfo, 0, sizeof(priv->jobInfo));
return 0;
}
@@ -373,6 +377,8 @@ static int qemuDomainObjBeginJobWithDriver(struct
qemud_driver *driver,
}
}
priv->jobActive = 1;
+priv->jobStart = (now.tv_sec * 1000ull) + (now.tv_usec / 1000);
+memset(&priv->jobInfo, 0, sizeof(priv->jobInfo));
virDomainObjUnlock(obj);
qemuDriverLock(driver);
@@ -395,6 +401,8 @@ static int ATTRIBUTE_RETURN_CHECK
qemuDomainObjEndJob(virDomainObjPtr obj)
qemuDomainObjPrivatePtr priv = obj->privateData;
priv->jobActive = 0;
+priv->jobStart = 0;
+memset(&priv->jobInfo, 0, sizeof(priv->jobInfo));
virCondSignal(&priv->jobCond);
return virDomainObjUnref(obj);
@@ -3800,6 +3808,93 @@ cleanup:
}
+static int
+qemuDomainWaitForMigrationComplete(struct qemud_driver *driver,
virDomainObjPtr vm)
+{
+int ret = -1;
+int status;
+unsigned long long memProcessed;
+unsigned long long memRemaining;
+unsigned long long memTotal;
+qemuDomainObjPrivatePtr priv = vm->privateData;
+
+priv->jobInfo.type = VIR_DOMAIN_JOB_UNBOUNDED;
+
+while (priv->jobInfo.type != VIR_DOMAIN_JOB_NONE) {
+/* Poll every 1/2 second for progress & to allow cancellation */
+struct timespec ts = { .tv_sec = 0, .tv_nsec = 500 * 1000ull };
+struct timeval now;
+int rc;
+
+qemuDomainObjEnterMonitorWithDriver(driver, vm);
+rc = qemuMonitorGetMigrationStatus(priv->mon,
+ &status,
+ &memProcessed,
+ &memRemaining,
+ &memTotal);
+qemuDomainObjExitMonitorWithDriver(driver, vm);
+
+if (rc < 0)
+goto cleanup;
+
+if (gettimeofday(&now, NULL) < 0) {
+virReportSystemError(NULL, errno, "%s",
+ _("cannot get time of day"));
+goto cleanup;
+}
+priv->jobInfo.timeElapsed =
+((now.tv_sec * 1000ull) + (now.tv_usec / 1000)) -
+priv->jobStart;
+
+switch (status) {
+case QEMU_MONITOR_MIGRATION_STATUS_INACTIVE:
+priv->jobInfo.type = VIR_DOMAIN_JOB_NONE;
+qemudReportError(NULL, NULL, NULL, VIR_ERR_OPERATION_FAILED,
+ "%s", _("Migration is not active"));
+break;
+
+case QEMU_MONITOR_MIGRATION_STATUS_ACTIVE:
+priv->jobInfo.dataTotal = memTotal;
+priv->jobInfo.dataRemaining = memRemaining;
+priv->jobInfo.dataProcessed = memProcessed;
+
+priv->jobInfo.memTotal = memTotal;
+priv->jobInfo.memRemaining = memRemaining;
+priv->jobInfo.memProcessed = memProcessed;
+break;
+
+case QEMU_MONITOR_MIGRATION_STATUS_COMPLETED:
+priv->jobInfo.type = VIR_DOMAIN_JOB_NONE;
+ret = 0;
+break;
+
+case QEMU_MONITOR_MIGRATION_STATUS_ERROR:
+priv->jobInfo.type = VIR_DOMAIN_JOB_NONE;
+qemudReportError(NULL, NULL, NULL, VIR_ERR_OPERATION_FAILED,
+ "%s", _("Migration unexpectedly failed"));
+break;
+
+case QEMU_MONITOR_MIGRA
