gt: allow policies to request more hugepages after boot#500
Merged
AltraMayor merged 4 commits intomasterfrom Jul 6, 2021
Merged
gt: allow policies to request more hugepages after boot#500AltraMayor merged 4 commits intomasterfrom
AltraMayor merged 4 commits intomasterfrom
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The new script, namely gkctl/scripts/reload_policy.lua, reloads the Lua policy from the disk and updates the instances of the GT block.
l_update_gt_lua_states() was issueing the same error message for failures of mb_alloc_entry() and mb_send_entry(). This patch clarifies which failure actually happened.
The capabilities CAP_DAC_OVERRIDE and CAP_SYS_ADMIN are needed to allow policies to request more hugepages during a reload.
The capabilities CAP_DAC_OVERRIDE and CAP_SYS_ADMIN are needed to allow policies to request more hugepages during an incremental update.
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When more hugepages are needed after boot and a Grantor server is running with a non-root user, the following log entry may show up in the log:
EAL: Couldn't get fd on hugepage file. The previous log entry is likely followed by the following entry:LPM: LPM memory allocation failed.This pull request addresses this problem and adds a
gkctlscript to request the reload of the policy.