1GROUPD(8) cluster GROUPD(8)
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6 groupd - compatibility daemon for fenced, dlm_controld and gfs_controld
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10 groupd [OPTIONS]
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14 The groupd daemon and libgroup library are used by the fenced, dlm_con‐
15 trold and gfs_controld daemons when they are operating in cluster2-com‐
16 patible mode to perform a rolling cluster upgrade from cluster2 to
17 cluster3.
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19 See cman(5) for more information on the upgrading configuration option
20 needed to perform a rolling upgrade.
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22 When the upgrading option is enabled, cman adds the following to the
23 online configuration:
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25 <group groupd_compat="1"/>
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27 This setting causes the cman init script to start the groupd daemon,
28 and causes the groupd, fenced, dlm_controld and gfs_controld daemons to
29 operate in the old cluster2 mode so they will be compatible with clus‐
30 ter2 nodes in the cluster that have not yet been upgraded.
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32 The upgrading setting, including the groupd_compat setting, cannot be
33 changed in a running cluster. The entire cluster must be taken offline
34 to change these because the new cluster3 default modes are not compati‐
35 ble with the old cluster2 modes. The upgrading/compat settings cause
36 the new cluster3 daemons to run the old cluster2 code and protocols.
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40 Command line options override a corresponding setting in cluster.conf.
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43 -D Enable debugging to stderr and don't fork.
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45 -L Enable debugging to log file.
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47 -g num groupd compatibility mode, 0 off, 1 on. Default 0.
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49 -h Print a help message describing available options, then exit.
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51 -V Print program version information, then exit.
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55 cman(5), fenced(8), dlm_controld(8), gfs_controld(8)
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60cluster 2009-01-19 GROUPD(8)