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HP-UX Reference > Ffs_symlinks(5)Tunable Kernel ParametersHP-UX 11i Version 2: December 2007 Update |
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NAMEfs_symlinks — maximum number of symbolic links used to resolve a path name DESCRIPTIONThe fs_symlinks tunable represents the maximum number of symbolic links followed by the kernel when resolving a path name. Applications that create symbolic links and/or parse path names should also now use this limit represented by fs_symlinks to be consistent with the kernel. Who Is Expected to Change This Tunable?Anyone expecting to run applications using path names that may expand to a large number of symbolic links. Restrictions on ChangingNone. The fs_symlinks tunable is dynamic (tuning will take effect immediately on the running system). When Should the Value of This Tunable Be Raised?This tunable value should be raised when applications are expected to create and/or parse path names that may expand to a large number of symbolic links. When Should the Value of This Tunable Be Lowered?This value rarely needs to be lowered, unless there is a reason to limit the number of symbolic links in an expanded path name. WARNINGSAll HP-UX kernel tunable parameters are release specific. This parameter may be removed or have its meaning changed in future releases of HP-UX. NOTE: The define MAXSYMLINKS, traditionally defined in <sys/param.h>, is now obsolete and should not be used. This limit (number of symbolics links that may be expanded in a path name) is now available to applications via this new tunable parameter, fs_symlinks. The interfaces provided by the tunable infrastructure should be used to obtain the value of fs_symlinks. At the application level, use the gettune(2) or kctune(1M) interface. Applications using the MAXSYMLINKS define may not be consistent with the kernel. The MAXSYMLINKS define will be removed in post-HP-UX 11i Version 2 releases. Installation of optional kernel software, from HP or other vendors, may cause changes to tunable parameter values. After installation, some tunable parameters may no longer be at the default or recommended values. For information about the effects of installation on tunable values, consult the documentation for the kernel software being installed. For information about optional kernel software that was factory installed on your system, see HP-UX Release Notes at http://docs.hp.com. SEE ALSOkctune(1M), sam(1M), gettune(2), settune(2), ulimit(2), setrlimit(2), maxfiles_lim(5), nfile(5). |
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