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SUSE:SLE-12-SP4:GA
libvirt.4521
libxl-set-migration-constraints.patch
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File libxl-set-migration-constraints.patch of Package libvirt.4521
From 6409e928eb4c2287dca59b139650fab77ea99fb8 Mon Sep 17 00:00:00 2001 From: Olaf Hering <olaf@aepfle.de> Date: Fri, 9 May 2014 11:55:31 -0600 Subject: [PATCH] libvirt: set migration constraints from cmdline References: fate#316614 Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Jim Fehlig <jfehlig@suse.com> --- include/libvirt/libvirt-domain.h | 25 +++++++++++++++++++++++++ src/libxl/libxl_driver.c | 17 ++++++++++++++++- src/libxl/libxl_migration.c | 29 +++++++++++++++++++++++++---- src/libxl/libxl_migration.h | 14 +++++++++++++- tools/virsh-domain.c | 38 ++++++++++++++++++++++++++++++++++++++ tools/virsh.pod | 8 ++++++++ 6 files changed, 125 insertions(+), 6 deletions(-) Index: libvirt-1.2.18.4/include/libvirt/libvirt-domain.h =================================================================== --- libvirt-1.2.18.4.orig/include/libvirt/libvirt-domain.h +++ libvirt-1.2.18.4/include/libvirt/libvirt-domain.h @@ -757,6 +757,31 @@ typedef enum { */ # define VIR_MIGRATE_PARAM_MIGRATE_DISKS "migrate_disks" +/** + * VIR_MIGRATE_PARAM_SUSE_MAX_ITERS: + * + * virDomainMigrate* params field: xc_domain_save max_iters + */ +#define VIR_MIGRATE_PARAM_SUSE_MAX_ITERS "max_iters" +/** + * VIR_MIGRATE_PARAM_SUSE_MAX_FACTOR: + * + * virDomainMigrate* params field: xc_domain_save max_factor + */ +#define VIR_MIGRATE_PARAM_SUSE_MAX_FACTOR "max_factor" +/** + * VIR_MIGRATE_PARAM_SUSE_MIN_REMAINING: + * + * virDomainMigrate* params field: xc_domain_save min_remaining + */ +#define VIR_MIGRATE_PARAM_SUSE_MIN_REMAINING "min_remaining" +/** + * VIR_MIGRATE_PARAM_SUSE_ABORT_IF_BUSY: + * + * virDomainMigrate* params field: xc_domain_save abort_if_busy + */ +#define VIR_MIGRATE_PARAM_SUSE_ABORT_IF_BUSY "abort_if_busy" + /* Domain migration. */ virDomainPtr virDomainMigrate (virDomainPtr domain, virConnectPtr dconn, unsigned long flags, const char *dname, Index: libvirt-1.2.18.4/src/libxl/libxl_driver.c =================================================================== --- libvirt-1.2.18.4.orig/src/libxl/libxl_driver.c +++ libvirt-1.2.18.4/src/libxl/libxl_driver.c @@ -5081,6 +5081,9 @@ libxlDomainMigratePerform3Params(virDoma const char *dname = NULL; const char *uri = NULL; int ret = -1; + libxlDomainMigrationProps props = { + .virFlags = flags, + }; #ifdef LIBXL_HAVE_NO_SUSPEND_RESUME virReportUnsupportedError(); @@ -5097,6 +5100,18 @@ libxlDomainMigratePerform3Params(virDoma virTypedParamsGetString(params, nparams, VIR_MIGRATE_PARAM_DEST_NAME, &dname) < 0 || + virTypedParamsGetUInt(params, nparams, + VIR_MIGRATE_PARAM_SUSE_MAX_ITERS, + &props.max_iters) < 0 || + virTypedParamsGetUInt(params, nparams, + VIR_MIGRATE_PARAM_SUSE_MAX_FACTOR, + &props.max_factor) < 0 || + virTypedParamsGetUInt(params, nparams, + VIR_MIGRATE_PARAM_SUSE_MIN_REMAINING, + &props.min_remaining) < 0 || + virTypedParamsGetUInt(params, nparams, + VIR_MIGRATE_PARAM_SUSE_ABORT_IF_BUSY, + &props.abort_if_busy) < 0 || virTypedParamsGetString(params, nparams, VIR_MIGRATE_PARAM_URI, &uri) < 0) @@ -5110,7 +5125,7 @@ libxlDomainMigratePerform3Params(virDoma goto cleanup; if (libxlDomainMigrationPerform(driver, vm, dom_xml, dconnuri, - uri, dname, flags) < 0) + uri, dname, &props) < 0) goto cleanup; ret = 0; Index: libvirt-1.2.18.4/src/libxl/libxl_migration.c =================================================================== --- libvirt-1.2.18.4.orig/src/libxl/libxl_migration.c +++ libvirt-1.2.18.4/src/libxl/libxl_migration.c @@ -188,18 +188,39 @@ libxlMigrateReceive(virNetSocketPtr sock static int libxlDoMigrateSend(libxlDriverPrivatePtr driver, virDomainObjPtr vm, - unsigned long flags, + const libxlDomainMigrationProps *props, int sockfd) { libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver); +#ifdef LIBXL_HAVE_DOMAIN_SUSPEND_SUSE + libxl_domain_suspend_suse_properties libxl_props = { + .flags = 0, + }; +#else int xl_flags = 0; +#endif int ret; - if (flags & VIR_MIGRATE_LIVE) +#ifdef LIBXL_HAVE_DOMAIN_SUSPEND_SUSE + if (props->virFlags & VIR_MIGRATE_LIVE) + libxl_props.flags |= LIBXL_SUSPEND_LIVE; + + libxl_props.max_iters = props->max_iters; + libxl_props.max_factor = props->max_factor; + libxl_props.min_remaining = props->min_remaining; + if (props->abort_if_busy) + libxl_props.flags |= LIBXL_SUSPEND_ABORT_IF_BUSY; + + ret = libxl_domain_suspend_suse(cfg->ctx, vm->def->id, sockfd, + &libxl_props, NULL); +#else + if (props->virFlags & VIR_MIGRATE_LIVE) xl_flags = LIBXL_SUSPEND_LIVE; ret = libxl_domain_suspend(cfg->ctx, vm->def->id, sockfd, xl_flags, NULL); +#endif + if (ret != 0) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("Failed to send migration data to destination host")); @@ -469,7 +490,7 @@ libxlDomainMigrationPerform(libxlDriverP const char *dconnuri ATTRIBUTE_UNUSED, const char *uri_str, const char *dname ATTRIBUTE_UNUSED, - unsigned int flags) + const libxlDomainMigrationProps *props) { libxlDomainObjPrivatePtr priv = vm->privateData; char *hostname = NULL; @@ -509,7 +530,7 @@ libxlDomainMigrationPerform(libxlDriverP /* suspend vm and send saved data to dst through socket fd */ virObjectUnlock(vm); - ret = libxlDoMigrateSend(driver, vm, flags, sockfd); + ret = libxlDoMigrateSend(driver, vm, props, sockfd); virObjectLock(vm); cleanup: Index: libvirt-1.2.18.4/src/libxl/libxl_migration.h =================================================================== --- libvirt-1.2.18.4.orig/src/libxl/libxl_migration.h +++ libvirt-1.2.18.4/src/libxl/libxl_migration.h @@ -37,6 +37,10 @@ VIR_MIGRATE_PARAM_URI, VIR_TYPED_PARAM_STRING, \ VIR_MIGRATE_PARAM_DEST_NAME, VIR_TYPED_PARAM_STRING, \ VIR_MIGRATE_PARAM_DEST_XML, VIR_TYPED_PARAM_STRING, \ + VIR_MIGRATE_PARAM_SUSE_MAX_ITERS, VIR_TYPED_PARAM_UINT, \ + VIR_MIGRATE_PARAM_SUSE_MAX_FACTOR, VIR_TYPED_PARAM_UINT, \ + VIR_MIGRATE_PARAM_SUSE_MIN_REMAINING, VIR_TYPED_PARAM_UINT, \ + VIR_MIGRATE_PARAM_SUSE_ABORT_IF_BUSY, VIR_TYPED_PARAM_UINT, \ NULL char * @@ -56,6 +60,14 @@ libxlDomainMigrationPrepare(virConnectPt char **uri_out, unsigned int flags); +typedef struct { + unsigned int virFlags; + unsigned int max_iters; + unsigned int max_factor; + unsigned int min_remaining; + unsigned int abort_if_busy; +} libxlDomainMigrationProps; + int libxlDomainMigrationPerform(libxlDriverPrivatePtr driver, virDomainObjPtr vm, @@ -63,7 +75,7 @@ libxlDomainMigrationPerform(libxlDriverP const char *dconnuri, const char *uri_str, const char *dname, - unsigned int flags); + const libxlDomainMigrationProps *props); virDomainPtr libxlDomainMigrationFinish(virConnectPtr dconn, Index: libvirt-1.2.18.4/tools/virsh-domain.c =================================================================== --- libvirt-1.2.18.4.orig/tools/virsh-domain.c +++ libvirt-1.2.18.4/tools/virsh-domain.c @@ -9940,6 +9940,22 @@ static const vshCmdOptDef opts_migrate[] .type = VSH_OT_STRING, .help = N_("comma separated list of disks to be migrated") }, + {.name = "max_iters", + .type = VSH_OT_INT, + .help = N_("SUSE libxl: Number of iterations before final suspend (default: 30).") + }, + {.name = "max_factor", + .type = VSH_OT_INT, + .help = N_("SUSE libxl: Max amount of memory to transfer before final suspend (default: 3*RAM).") + }, + {.name = "min_remaining", + .type = VSH_OT_INT, + .help = N_("SUSE libxl: Number of dirty pages before final suspend (default: 50).") + }, + {.name = "abort_if_busy", + .type = VSH_OT_BOOL, + .help = N_("SUSE libxl: Abort migration instead of doing final suspend.") + }, {.name = NULL} }; @@ -9959,6 +9975,7 @@ doMigrate(void *opaque) int nparams = 0; int maxparams = 0; virConnectPtr dconn = data->dconn; + unsigned int uint_opt = 0; sigemptyset(&sigmask); sigaddset(&sigmask, SIGINT); @@ -10018,6 +10035,27 @@ doMigrate(void *opaque) VIR_FREE(val); } + if (vshCommandOptUInt(ctl, cmd, "max_iters", &uint_opt) > 0 && uint_opt) { + if (virTypedParamsAddUInt(¶ms, &nparams, &maxparams, + VIR_MIGRATE_PARAM_SUSE_MAX_ITERS, uint_opt) < 0) + goto save_error; + } + if (vshCommandOptUInt(ctl, cmd, "max_factor", &uint_opt) > 0 && uint_opt) { + if (virTypedParamsAddUInt(¶ms, &nparams, &maxparams, + VIR_MIGRATE_PARAM_SUSE_MAX_FACTOR, uint_opt) < 0) + goto save_error; + } + if (vshCommandOptUInt(ctl, cmd, "min_remaining", &uint_opt) > 0 && uint_opt) { + if (virTypedParamsAddUInt(¶ms, &nparams, &maxparams, + VIR_MIGRATE_PARAM_SUSE_MIN_REMAINING, uint_opt) < 0) + goto save_error; + } + if (vshCommandOptBool(cmd, "abort_if_busy")) { + if (virTypedParamsAddUInt(¶ms, &nparams, &maxparams, + VIR_MIGRATE_PARAM_SUSE_ABORT_IF_BUSY, 1) < 0) + goto save_error; + } + if (vshCommandOptStringReq(ctl, cmd, "xml", &opt) < 0) goto out; if (opt) { Index: libvirt-1.2.18.4/tools/virsh.pod =================================================================== --- libvirt-1.2.18.4.orig/tools/virsh.pod +++ libvirt-1.2.18.4/tools/virsh.pod @@ -1572,6 +1572,14 @@ I<--timeout> B<seconds> forces guest to that many seconds, and then the migration will complete offline. It can only be used with I<--live>. +SUSE-specific options for Xen: I<--max_iters> B<num> allows specifying the maximum +number of iterations before final suspend. Default is 30. I<--max_factor> B<num> +allows specifying the maximum amount of memory to transfer before final suspend. +Default is (3*VM memory size). I<--min_remaining> B<num> allows specifying the +number of dirty pages before final suspend. Default is 50. I<--abort_if_busy> +can be used to abort the migration instead of doing the final suspend for VMs with +busy workloads. + Running migration can be canceled by interrupting virsh (usually using C<Ctrl-C>) or by B<domjobabort> command sent from another virsh instance.
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