grain showGrainReq
Function
The grain showGrainReq command is used to view space statistics on the grain module.
Format
grain showGrainReq file_system_id
Parameters
Parameter |
Description |
Value |
|---|---|---|
file_system_id |
File system ID. |
To obtain the value, run the "show file_system general" command. |
Views
Diagnostic view
Usage Guidelines
This command is applicable only to the local controller.
Example
View space statistics on the grain module of file system "0".
admin:/diagnose>grain showGrainReq 0
============================= Grain Space Details ============================
------------------------------ QueueCtrl --------------------------------
Total allocate meta extent num: 128
Total allocate data extent num: 11748
------------------------ Allocctrl Summary -----------------------------
Total allocated meta: 39952384(Bytes)
Total allocated node: 78225408(Bytes)
Total allocated data: 48365043712(Bytes)
Total meta self used: 23805952(Bytes)
Total data self used: 0(Bytes)
Defree used meta: 23068672(Bytes)
Gang used meta: 0(Bytes)
------------------------------ AllocAlg --------------------------------
Meta alloc tree extent num: 14
Meta alloc tree left size: 37998592(Bytes)
Data alloc tree extent num: 5
Data alloc tree left size: 38273024(Bytes)
------------------------------ NodeAlg ---------------------------------
Remain node num: 80
Total alloc node num: 2096
------------------------------ DeferFree --------------------------------
Deferfree left total size: 1183174656(Bytes)
Deferfree left total meta size: 4050944(Bytes)
Deferfree left total data size: 1179123712(Bytes)
Deferfree current txNo: 446
------------------------------ GrainAlloc(Bytes)-------------------------
grainUsed(data/meta): 12582912/ 40644608
grainAlloc(data/meta): 47198502912/ 153972736
grainReserve(data/meta): 897056768/ 110411776
------------------------------ MergeTree(Bytes)--------------------------
mergeIn(data/meta): 2480930816/ 93057024
mergeOut(data/meta): 2461007872/ 29360128
InMergeTree(data/meta): 19922944/ 63696896
------------------------------ AllocTree(Bytes)--------------------------
allocIn(data/meta): 96650919936/ 249561088
allocOut(data/meta): 96612646912/ 211562496
InKVDBTree(data/meta): 38273024/ 37998592
InAVLTree(data/meta): 38273024/ 37998592
------------------------------ Queue(Bytes)------------------------------
FreeQueue(data/meta): 12582912/ 0
AllocQueue(data/meta): 838860800/ 25165824
------------------------------ Policy(Bytes)-----------------------------
curr fill policy(data/meta): 1/ 2
last fill policy(data/meta): 1/ 2
curr through flag(data/meta): 0/ 0
last through flag(data/meta): 0/ 0
first load(data/meta): 0/ 0
last alg out(data/meta): 96612646912/ 211562496
last tx used(data/meta): 144179200/ 503808
last max alloc(data/meta): 4096/ 4096
alloc from spa flag(data/meta): 0/ 0
------------------------------ AllocCtrl --------------------------------
Type TotalAllocNum TotalAllocSize(B) TotalFreeNum TotalFreeSize(B)
Data Grain 775144 50858557440 37859 2493513728
Meta Grain 19221 104132608 9621 64180224
Node Grain 26148 107102208 7050 28876800
============================= Grain Space Details =======================
System Response
The following table describes the parameter meanings.
Parameter |
Meaning |
|---|---|
Total allocate meta extent num |
Total number of metadata extents obtained by the grain module from the SPA module. |
Total allocate data extent num |
Total number of data extents obtained by the grain module from the SPA module. |
Total allocated meta |
Total size of meta resource used by the grain module. |
Total allocated node |
Total size of node resource used by the grain module. |
Total allocated data |
Total size of data resource used by the grain module. |
Total meta self used |
Total amount of metadata used by the grain module. |
Total data self used |
Total amount of data used by the grain module. |
Defree used meta |
Total amount of metadata used by the defree submodule of the grain module. |
Gang used meta |
Total amount of metadata used by the gang submodule of the grain module. |
Meta alloc tree extent num |
Number of complete blocks in the metadata allocator. |
Meta alloc tree left size |
Total capacity of the metadata allocator. |
Data alloc tree extent num |
Number of complete blocks in the data allocator. |
Data alloc tree left size |
Total capacity of the data allocator. |
Remain node num |
Total number of nodes. |
Total alloc node num |
Number of allocated nodes. |
Deferfree left total size |
Capacity used in defree. |
Deferfree left total meta size |
Metadata space used in defree. |
Deferfree left total data size |
Data space used in defree. |
Deferfree current txNo |
Task number of the current node in defree. |
grainUsed |
Space used by the grain module. |
grainAlloc |
Space allocated by the grain module. |
grainReserve |
Space reserved in the grain module. |
mergeIn |
Space returned to Merge Tree. |
mergeOut |
Space of Merge Tree returned to the allocation tree. |
InMergeTree |
Space owned by Merge Tree. |
allocIn |
Space returned to the allocation tree. |
allocOut |
Space allocated by the allocation tree. |
InKVDBTree |
Space owned by the allocation tree in disks. |
InAVLTree |
Space owned by the allocation tree in memory. |
FreeQueue |
Space owned by Free Queue. |
AllocQueue |
Space owned by Alloc Queue. |
curFillPolicy |
Allocation policy of the current transaction. |
lastFillPolicy |
Allocation policy of the last transaction. |
curIsThroughFlag |
Write through flag of the current transaction. "true" indicates write through. |
lastIsThroughFlag |
Write through flag of the last transaction. "true" indicates write through. |
isFirstLoad |
First load or not. "true" indicates the first load. |
lastAlgOutUsed |
Space used by the allocation tree of the last transaction. |
lastTxSpaceUsed |
Space used by the last transaction. |
lastMaxAllocSize |
Space returned by the last transaction. |
isAllocFromSpa |
Whether space is allocated from spa. "true" indicates that space is allocated from spa. |
TotalAllocNum |
Count of resource applications by the grain module. |
TotalAllocSize(B) |
Size of resources obtained by the grain module. |
TotalFreeNum |
Count of resource releases by the grain module. |
TotalFreeSize(B) |
Size of resources released by the grain module. |
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