X-Git-Url: https://code.grnet.gr/git/ganeti-local/blobdiff_plain/918eb80bea02013b7a474e3ef0e9d5fb4a3ac8ea..363c0106cb4616658f313fecc65ca47132cb3882:/lib/constants.py

diff --git a/lib/constants.py b/lib/constants.py
index 27a993c..16931ac 100644
--- a/lib/constants.py
+++ b/lib/constants.py
@@ -922,30 +922,30 @@ BES_PARAMETER_COMPAT.update(BES_PARAMETER_TYPES)
 BES_PARAMETERS = frozenset(BES_PARAMETER_TYPES.keys())
 
 # instance specs
-MEM_SIZE_SPEC = "memory-size"
-CPU_COUNT_SPEC = "cpu-count"
-DISK_COUNT_SPEC = "disk-count"
-DISK_SIZE_SPEC = "disk-size"
-NIC_COUNT_SPEC = "nic-count"
+ISPEC_MEM_SIZE = "memory-size"
+ISPEC_CPU_COUNT = "cpu-count"
+ISPEC_DISK_COUNT = "disk-count"
+ISPEC_DISK_SIZE = "disk-size"
+ISPEC_NIC_COUNT = "nic-count"
 
 ISPECS_PARAMETER_TYPES = {
-  MEM_SIZE_SPEC: VTYPE_INT,
-  CPU_COUNT_SPEC: VTYPE_INT,
-  DISK_COUNT_SPEC: VTYPE_INT,
-  DISK_SIZE_SPEC: VTYPE_INT,
-  NIC_COUNT_SPEC: VTYPE_INT,
+  ISPEC_MEM_SIZE: VTYPE_INT,
+  ISPEC_CPU_COUNT: VTYPE_INT,
+  ISPEC_DISK_COUNT: VTYPE_INT,
+  ISPEC_DISK_SIZE: VTYPE_INT,
+  ISPEC_NIC_COUNT: VTYPE_INT,
   }
 
 ISPECS_PARAMETERS = frozenset(ISPECS_PARAMETER_TYPES.keys())
 
-MIN_ISPECS = "min"
-MAX_ISPECS = "max"
-STD_ISPECS = "std"
+ISPECS_MIN = "min"
+ISPECS_MAX = "max"
+ISPECS_STD = "std"
 
 IPOLICY_PARAMETERS = frozenset([
-  MIN_ISPECS,
-  MAX_ISPECS,
-  STD_ISPECS
+  ISPECS_MIN,
+  ISPECS_MAX,
+  ISPECS_STD,
   ])
 
 # Node parameter names
@@ -965,6 +965,12 @@ LDP_NO_META_FLUSH = "disable-meta-flush"
 LDP_DEFAULT_METAVG = "default-metavg"
 LDP_DISK_CUSTOM = "disk-custom"
 LDP_NET_CUSTOM = "net-custom"
+LDP_DYNAMIC_RESYNC = "dynamic-resync"
+LDP_PLAN_AHEAD = "c-plan-ahead"
+LDP_FILL_TARGET = "c-fill-target"
+LDP_DELAY_TARGET = "c-delay-target"
+LDP_MAX_RATE = "c-max-rate"
+LDP_MIN_RATE = "c-min-rate"
 DISK_LD_TYPES = {
   LDP_RESYNC_RATE: VTYPE_INT,
   LDP_STRIPES: VTYPE_INT,
@@ -973,10 +979,17 @@ DISK_LD_TYPES = {
   LDP_DEFAULT_METAVG: VTYPE_STRING,
   LDP_DISK_CUSTOM: VTYPE_STRING,
   LDP_NET_CUSTOM: VTYPE_STRING,
+  LDP_DYNAMIC_RESYNC: VTYPE_BOOL,
+  LDP_PLAN_AHEAD: VTYPE_INT,
+  LDP_FILL_TARGET: VTYPE_INT,
+  LDP_DELAY_TARGET: VTYPE_INT,
+  LDP_MAX_RATE: VTYPE_INT,
+  LDP_MIN_RATE: VTYPE_INT,
   }
 DISK_LD_PARAMETERS = frozenset(DISK_LD_TYPES.keys())
 
-# Disk template parameters
+# Disk template parameters (can be set/changed by the user via gnt-cluster and
+# gnt-group)
 DRBD_RESYNC_RATE = "resync-rate"
 DRBD_DATA_STRIPES = "data-stripes"
 DRBD_META_STRIPES = "meta-stripes"
@@ -985,6 +998,12 @@ DRBD_META_BARRIERS = "meta-barriers"
 DRBD_DEFAULT_METAVG = "metavg"
 DRBD_DISK_CUSTOM = "disk-custom"
 DRBD_NET_CUSTOM = "net-custom"
+DRBD_DYNAMIC_RESYNC = "dynamic-resync"
+DRBD_PLAN_AHEAD = "c-plan-ahead"
+DRBD_FILL_TARGET = "c-fill-target"
+DRBD_DELAY_TARGET = "c-delay-target"
+DRBD_MAX_RATE = "c-max-rate"
+DRBD_MIN_RATE = "c-min-rate"
 LV_STRIPES = "stripes"
 DISK_DT_TYPES = {
   DRBD_RESYNC_RATE: VTYPE_INT,
@@ -995,6 +1014,12 @@ DISK_DT_TYPES = {
   DRBD_DEFAULT_METAVG: VTYPE_STRING,
   DRBD_DISK_CUSTOM: VTYPE_STRING,
   DRBD_NET_CUSTOM: VTYPE_STRING,
+  DRBD_DYNAMIC_RESYNC: VTYPE_BOOL,
+  DRBD_PLAN_AHEAD: VTYPE_INT,
+  DRBD_FILL_TARGET: VTYPE_INT,
+  DRBD_DELAY_TARGET: VTYPE_INT,
+  DRBD_MAX_RATE: VTYPE_INT,
+  DRBD_MIN_RATE: VTYPE_INT,
   LV_STRIPES: VTYPE_INT,
   }
 
@@ -1276,6 +1301,9 @@ CV_EINSTANCEWRONGNODE = \
 CV_EINSTANCESPLITGROUPS = \
   (CV_TINSTANCE, "EINSTANCESPLITGROUPS",
    "Instance with primary and secondary nodes in different groups")
+CV_EINSTANCEPOLICY = \
+  (CV_TINSTANCE, "EINSTANCEPOLICY",
+   "Instance does not meet policy")
 CV_ENODEDRBD = \
   (CV_TNODE, "ENODEDRBD", "Error parsing the DRBD status file")
 CV_ENODEDRBDHELPER = \
@@ -1329,6 +1357,7 @@ CV_ALL_ECODES = frozenset([
   CV_EINSTANCEFAULTYDISK,
   CV_EINSTANCEWRONGNODE,
   CV_EINSTANCESPLITGROUPS,
+  CV_EINSTANCEPOLICY,
   CV_ENODEDRBD,
   CV_ENODEDRBDHELPER,
   CV_ENODEFILECHECK,
@@ -1771,6 +1800,18 @@ DISK_LD_DEFAULTS = {
     LDP_DEFAULT_METAVG: DEFAULT_VG,
     LDP_DISK_CUSTOM: "",
     LDP_NET_CUSTOM: "",
+    LDP_DYNAMIC_RESYNC: False,
+
+    # The default values for the DRBD dynamic resync speed algorithm are taken
+    # from the drbsetup 8.3.11 man page, except for c-plan-ahead (that we
+    # don't need to set to 0, because we have a separate option to enable it)
+    # and for c-max-rate, that we cap to the default value for the static resync
+    # rate.
+    LDP_PLAN_AHEAD: 20, # ds
+    LDP_FILL_TARGET: 0, # sectors
+    LDP_DELAY_TARGET: 1, # ds
+    LDP_MAX_RATE: CLASSIC_DRBD_SYNC_SPEED, # KiB/s
+    LDP_MIN_RATE: 4 * 1024, # KiB/s
     },
   LD_LV: {
     LDP_STRIPES: _autoconf.LVM_STRIPECOUNT
@@ -1781,19 +1822,29 @@ DISK_LD_DEFAULTS = {
     },
   }
 
+# readability shortcuts
+_LV_DEFAULTS = DISK_LD_DEFAULTS[LD_LV]
+_DRBD_DEFAULTS = DISK_LD_DEFAULTS[LD_DRBD8]
+
 DISK_DT_DEFAULTS = {
   DT_PLAIN: {
     LV_STRIPES: DISK_LD_DEFAULTS[LD_LV][LDP_STRIPES],
     },
   DT_DRBD8: {
-    DRBD_RESYNC_RATE: DISK_LD_DEFAULTS[LD_DRBD8][LDP_RESYNC_RATE],
-    DRBD_DATA_STRIPES: DISK_LD_DEFAULTS[LD_LV][LDP_STRIPES],
-    DRBD_META_STRIPES: DISK_LD_DEFAULTS[LD_LV][LDP_STRIPES],
-    DRBD_DISK_BARRIERS: DISK_LD_DEFAULTS[LD_DRBD8][LDP_BARRIERS],
-    DRBD_META_BARRIERS: DISK_LD_DEFAULTS[LD_DRBD8][LDP_NO_META_FLUSH],
-    DRBD_DEFAULT_METAVG: DISK_LD_DEFAULTS[LD_DRBD8][LDP_DEFAULT_METAVG],
-    DRBD_DISK_CUSTOM: DISK_LD_DEFAULTS[LD_DRBD8][LDP_DISK_CUSTOM],
-    DRBD_NET_CUSTOM: DISK_LD_DEFAULTS[LD_DRBD8][LDP_NET_CUSTOM],
+    DRBD_RESYNC_RATE: _DRBD_DEFAULTS[LDP_RESYNC_RATE],
+    DRBD_DATA_STRIPES: _LV_DEFAULTS[LDP_STRIPES],
+    DRBD_META_STRIPES: _LV_DEFAULTS[LDP_STRIPES],
+    DRBD_DISK_BARRIERS: _DRBD_DEFAULTS[LDP_BARRIERS],
+    DRBD_META_BARRIERS: _DRBD_DEFAULTS[LDP_NO_META_FLUSH],
+    DRBD_DEFAULT_METAVG: _DRBD_DEFAULTS[LDP_DEFAULT_METAVG],
+    DRBD_DISK_CUSTOM: _DRBD_DEFAULTS[LDP_DISK_CUSTOM],
+    DRBD_NET_CUSTOM: _DRBD_DEFAULTS[LDP_NET_CUSTOM],
+    DRBD_DYNAMIC_RESYNC: _DRBD_DEFAULTS[LDP_DYNAMIC_RESYNC],
+    DRBD_PLAN_AHEAD: _DRBD_DEFAULTS[LDP_PLAN_AHEAD],
+    DRBD_FILL_TARGET: _DRBD_DEFAULTS[LDP_FILL_TARGET],
+    DRBD_DELAY_TARGET: _DRBD_DEFAULTS[LDP_DELAY_TARGET],
+    DRBD_MAX_RATE: _DRBD_DEFAULTS[LDP_MAX_RATE],
+    DRBD_MIN_RATE: _DRBD_DEFAULTS[LDP_MIN_RATE],
     },
   DT_DISKLESS: {
     },
@@ -1805,32 +1856,35 @@ DISK_DT_DEFAULTS = {
     },
   }
 
+# we don't want to export the shortcuts
+del _LV_DEFAULTS, _DRBD_DEFAULTS
+
 NICC_DEFAULTS = {
   NIC_MODE: NIC_MODE_BRIDGED,
   NIC_LINK: DEFAULT_BRIDGE,
   }
 
 IPOLICY_DEFAULTS = {
-  MIN_ISPECS: {
-    MEM_SIZE_SPEC: 128,
-    CPU_COUNT_SPEC: 1,
-    DISK_COUNT_SPEC: 1,
-    DISK_SIZE_SPEC: 1024,
-    NIC_COUNT_SPEC: 1,
+  ISPECS_MIN: {
+    ISPEC_MEM_SIZE: 128,
+    ISPEC_CPU_COUNT: 1,
+    ISPEC_DISK_COUNT: 1,
+    ISPEC_DISK_SIZE: 1024,
+    ISPEC_NIC_COUNT: 1,
     },
-  MAX_ISPECS: {
-    MEM_SIZE_SPEC: 128,
-    CPU_COUNT_SPEC: 1,
-    DISK_COUNT_SPEC: 1,
-    DISK_SIZE_SPEC: 1024,
-    NIC_COUNT_SPEC: 1,
+  ISPECS_MAX: {
+    ISPEC_MEM_SIZE: 32768,
+    ISPEC_CPU_COUNT: 8,
+    ISPEC_DISK_COUNT: MAX_DISKS,
+    ISPEC_DISK_SIZE: 1024 * 1024,
+    ISPEC_NIC_COUNT: MAX_NICS,
     },
-  STD_ISPECS: {
-    MEM_SIZE_SPEC: 128,
-    CPU_COUNT_SPEC: 1,
-    DISK_COUNT_SPEC: 1,
-    DISK_SIZE_SPEC: 1024,
-    NIC_COUNT_SPEC: 1,
+  ISPECS_STD: {
+    ISPEC_MEM_SIZE: 128,
+    ISPEC_CPU_COUNT: 1,
+    ISPEC_DISK_COUNT: 1,
+    ISPEC_DISK_SIZE: 1024,
+    ISPEC_NIC_COUNT: 1,
     }
   }