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libvirt.11701
libxl-set-migration-constraints.patch
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File libxl-set-migration-constraints.patch of Package libvirt.11701
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-4.0.0/include/libvirt/libvirt-domain.h =================================================================== --- libvirt-4.0.0.orig/include/libvirt/libvirt-domain.h +++ libvirt-4.0.0/include/libvirt/libvirt-domain.h @@ -1008,6 +1008,31 @@ typedef enum { */ # define VIR_MIGRATE_PARAM_AUTO_CONVERGE_INCREMENT "auto_converge.increment" +/** + * 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-4.0.0/src/libxl/libxl_driver.c =================================================================== --- libvirt-4.0.0.orig/src/libxl/libxl_driver.c +++ libvirt-4.0.0/src/libxl/libxl_driver.c @@ -6081,6 +6081,9 @@ libxlDomainMigratePerform3Params(virDoma const char *dname = NULL; const char *uri = NULL; int ret = -1; + libxlDomainMigrationProps props = { + .virFlags = flags, + }; #ifdef LIBXL_HAVE_NO_SUSPEND_RESUME virReportUnsupportedError(); @@ -6097,6 +6100,18 @@ 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) @@ -6111,11 +6126,11 @@ libxlDomainMigratePerform3Params(virDoma if ((flags & (VIR_MIGRATE_TUNNELLED | VIR_MIGRATE_PEER2PEER))) { if (libxlDomainMigrationPerformP2P(driver, vm, dom->conn, dom_xml, - dconnuri, uri, dname, flags) < 0) + dconnuri, uri, dname, &props) < 0) goto cleanup; } else { if (libxlDomainMigrationPerform(driver, vm, dom_xml, dconnuri, - uri, dname, flags) < 0) + uri, dname, &props) < 0) goto cleanup; } Index: libvirt-4.0.0/src/libxl/libxl_migration.c =================================================================== --- libvirt-4.0.0.orig/src/libxl/libxl_migration.c +++ libvirt-4.0.0/src/libxl/libxl_migration.c @@ -347,18 +347,39 @@ 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")); @@ -928,7 +949,7 @@ struct libxlTunnelControl { static int libxlMigrationStartTunnel(libxlDriverPrivatePtr driver, virDomainObjPtr vm, - unsigned long flags, + const libxlDomainMigrationProps *props, virStreamPtr st, struct libxlTunnelControl **tnl) { @@ -961,7 +982,7 @@ libxlMigrationStartTunnel(libxlDriverPri virObjectUnlock(vm); /* Send data to pipe */ - ret = libxlDoMigrateSend(driver, vm, flags, tc->dataFD[1]); + ret = libxlDoMigrateSend(driver, vm, props, tc->dataFD[1]); virObjectLock(vm); out: @@ -996,7 +1017,7 @@ libxlDoMigrateP2P(libxlDriverPrivatePtr const char *dconnuri ATTRIBUTE_UNUSED, const char *dname, const char *uri, - unsigned int flags) + const libxlDomainMigrationProps *props) { virDomainPtr ddomain = NULL; virTypedParameterPtr params = NULL; @@ -1041,11 +1062,11 @@ libxlDoMigrateP2P(libxlDriverPrivatePtr /* We don't require the destination to have P2P support * as it looks to be normal migration from the receiver perpective. */ - destflags = flags & ~(VIR_MIGRATE_PEER2PEER); + destflags = props->virFlags & ~(VIR_MIGRATE_PEER2PEER); VIR_DEBUG("Prepare3"); virObjectUnlock(vm); - if (flags & VIR_MIGRATE_TUNNELLED) { + if (props->virFlags & VIR_MIGRATE_TUNNELLED) { if (!(st = virStreamNew(dconn, 0))) goto confirm; ret = dconn->driver->domainMigratePrepareTunnel3Params @@ -1059,7 +1080,7 @@ libxlDoMigrateP2P(libxlDriverPrivatePtr if (ret == -1) goto confirm; - if (!(flags & VIR_MIGRATE_TUNNELLED)) { + if (!(props->virFlags & VIR_MIGRATE_TUNNELLED)) { if (uri_out) { if (virTypedParamsReplaceString(¶ms, &nparams, VIR_MIGRATE_PARAM_URI, uri_out) < 0) { @@ -1074,11 +1095,11 @@ libxlDoMigrateP2P(libxlDriverPrivatePtr } VIR_DEBUG("Perform3 uri=%s", NULLSTR(uri_out)); - if (flags & VIR_MIGRATE_TUNNELLED) - ret = libxlMigrationStartTunnel(driver, vm, flags, st, &tc); + if (props->virFlags & VIR_MIGRATE_TUNNELLED) + ret = libxlMigrationStartTunnel(driver, vm, props, st, &tc); else ret = libxlDomainMigrationPerform(driver, vm, NULL, NULL, - uri_out, NULL, flags); + uri_out, NULL, props); if (ret < 0) { notify_source = false; orig_err = virSaveLastError(); @@ -1113,7 +1134,7 @@ libxlDoMigrateP2P(libxlDriverPrivatePtr confirm: if (notify_source) { VIR_DEBUG("Confirm3 cancelled=%d vm=%p", cancelled, vm); - ret = libxlDomainMigrationConfirm(driver, vm, flags, cancelled); + ret = libxlDomainMigrationConfirm(driver, vm, props->virFlags, cancelled); if (ret < 0) VIR_WARN("Guest %s probably left in 'paused' state on source", @@ -1121,7 +1142,7 @@ libxlDoMigrateP2P(libxlDriverPrivatePtr } cleanup: - if (flags & VIR_MIGRATE_TUNNELLED) { + if (props->virFlags & VIR_MIGRATE_TUNNELLED) { libxlMigrationStopTunnel(tc); virObjectUnref(st); } @@ -1168,7 +1189,7 @@ libxlDomainMigrationPerformP2P(libxlDriv const char *dconnuri, const char *uri_str ATTRIBUTE_UNUSED, const char *dname, - unsigned int flags) + const libxlDomainMigrationProps *props) { int ret = -1; bool useParams; @@ -1203,7 +1224,7 @@ libxlDomainMigrationPerformP2P(libxlDriv } ret = libxlDoMigrateP2P(driver, vm, sconn, xmlin, dconn, dconnuri, - dname, uri_str, flags); + dname, uri_str, props); if (ret < 0) { /* @@ -1233,7 +1254,7 @@ 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; @@ -1273,7 +1294,7 @@ 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); if (ret < 0) { Index: libvirt-4.0.0/src/libxl/libxl_migration.h =================================================================== --- libvirt-4.0.0.orig/src/libxl/libxl_migration.h +++ libvirt-4.0.0/src/libxl/libxl_migration.h @@ -39,6 +39,10 @@ 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 * @@ -70,6 +74,14 @@ libxlDomainMigrationPrepare(virConnectPt int cookieinlen, 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 libxlDomainMigrationPerformP2P(libxlDriverPrivatePtr driver, virDomainObjPtr vm, @@ -78,7 +90,7 @@ libxlDomainMigrationPerformP2P(libxlDriv const char *dconnuri, const char *uri_str, const char *dname, - unsigned int flags); + const libxlDomainMigrationProps *props); int libxlDomainMigrationPerform(libxlDriverPrivatePtr driver, @@ -87,7 +99,7 @@ libxlDomainMigrationPerform(libxlDriverP const char *dconnuri, const char *uri_str, const char *dname, - unsigned int flags); + const libxlDomainMigrationProps *props); virDomainPtr libxlDomainMigrationFinish(virConnectPtr dconn, Index: libvirt-4.0.0/tools/virsh-domain.c =================================================================== --- libvirt-4.0.0.orig/tools/virsh-domain.c +++ libvirt-4.0.0/tools/virsh-domain.c @@ -10544,6 +10544,22 @@ static const vshCmdOptDef opts_migrate[] .type = VSH_OT_INT, .help = N_("migration bandwidth limit in MiB/s") }, + {.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} }; @@ -10567,6 +10583,7 @@ doMigrate(void *opaque) unsigned long long ullOpt = 0; int rv; virConnectPtr dconn = data->dconn; + unsigned int uint_opt = 0; sigemptyset(&sigmask); sigaddset(&sigmask, SIGINT); @@ -10686,6 +10703,27 @@ doMigrate(void *opaque) goto save_error; } + 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-4.0.0/tools/virsh.pod =================================================================== --- libvirt-4.0.0.orig/tools/virsh.pod +++ libvirt-4.0.0/tools/virsh.pod @@ -1852,6 +1852,14 @@ Providing I<--tls> causes the migration the migration of the domain. Usage requires proper TLS setup for both source and target. +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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