ganesha-cache-config(8)

1GANESHA-CACHE-CONFIG(8)           NFS-Ganesha          GANESHA-CACHE-CONFIG(8)
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NAME

6       ganesha-cache-config - NFS Ganesha Cache Configuration File
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SYNOPSIS

9       /etc/ganesha/ganesha.conf
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DESCRIPTION

13       NFS-Ganesha  reads  the  configuration  data from: | /etc/ganesha/gane‐
14       sha.conf
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16       This file lists NFS-Ganesha Cache config options.  These  options  used
17       to  be  configured  in the CACHEINODE block.  They may still be used in
18       that block, but it is deprecated and will go away.  The  MDCACHE  block
19       takes precidence over the CACHEINODE block.
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21   MDCACHE {}
22       NParts (uint32, range 1 to 32633, default 7)
23              Partitions in the Cache_Inode tree.
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25       Cache_Size(uint32, range 1 to UINT32_MAX, default 32633)
26              Per-partition hash table size.
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28       Use_Getattr_Directory_Invalidation(bool, default false)
29              Use getattr for directory invalidation.
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31       Dir_Chunk(uint32, range 0 to UINT32_MAX, default 128)
32              Size  of  per-directory  dirent  cache chunks, 0 means directory
33              chunking is not enabled.
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35       Detached_Mult(uint32, range 1 to UINT32_MAX, default 1)
36              Max number of detached directory entries expressed as a multiple
37              of the chunk size.
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39       Entries_HWMark(uint32, range 1 to UINT32_MAX, default 100000)
40              The point at which object cache entries will start being reused.
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42       Chunks_HWMark(uint32, range 1 to UINT32_MAX, default 100000)
43              The point at which dirent cache chunks will start being reused.
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45       LRU_Run_Interval(uint32, range 1 to 24 * 3600, default 90)
46              Base interval in seconds between runs of the LRU cleaner thread.
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48       FD_Limit_Percent(uint32, range 0 to 100, default 99)
49              The percentage of the system-imposed maximum of file descriptors
50              at which Ganesha will deny requests.
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52       FD_HWMark_Percent(uint32, range 0 to 100, default 90)
53              The percentage of the system-imposed maximum of file descriptors
54              above which Ganesha will make greater efforts at reaping.
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56       FD_LWMark_Percent(uint32, range 0 to 100, default 50)
57              The percentage of the system-imposed maximum of file descriptors
58              below which Ganesha will not reap file descriptors.
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60       Reaper_Work(uint32, range 1 to 2000, default 0)
61              Roughly, the amount of work to  do  on  each  pass  through  the
62              thread  under  normal  conditions.   (Ideally, a multiple of the
63              number of lanes.)   This  setting  is  deprecated.   Please  use
64              Reaper_Work_Per_Lane
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66       Reaper_Work_Per_Lane(uint32, range 1 to UINT32_MAX, default 50)
67              This  is  the  numer of handles per lane to scan when performing
68              LRU maintenance.  This task is performed by the Reaper thread.
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70       Biggest_Window(uint32, range 1 to 100, default 40)
71              The largest window (as a percentage of the system-imposed  limit
72              on FDs) of work that we will do in extremis.
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74       Required_Progress(uint32, range 1 to 50, default 5)
75              Percentage of progress toward the high water mark required in in
76              a pass through the thread when in extremis
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78       Futility_Count(uint32, range 1 to 50, default 8)
79              Number of failures to approach the high watermark before we dis‐
80              able caching, when in extremis.
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82       Dirmap_HWMark(uint32, range 1 to UINT32_MAX, default 10000)
83              The point at which dirmap entries are reused.  This puts a prac‐
84              tical limit on the number of simultaneous readdirs that  may  be
85              in  progress  on  an export for a whence-is-name FSAL (currently
86              only FSAL_RGW)
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NAME

SYNOPSIS

DESCRIPTION

SEE ALSO