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warn on ERANGE error for lgetxattr in posix

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(amended to fit in 80 columns)

ERANGE is usually caused by the user reducing the number of AFR's
children but continues to use the old backend.

Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
This commit is contained in:
Vikas Gorur 2009-02-19 04:26:47 -08:00 committed by Anand V. Avati
parent 1c701badce
commit ed1d91986c
1 changed files with 18 additions and 0 deletions
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18
xlators/storage/posix/src/xattr-cache.c
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@ -40,6 +40,24 @@ __hgetxattr (xattr_cache_handle_t *handle, xlator_t *this,
if (op_ret == -1)
op_ret = -errno;
if (errno == ERANGE) {
/*
* xattr array is bigger than expected.
* This usually happens when user reduces
* the number of AFR's children but continues
* to use the old backend.
*/
gf_log (this->name, GF_LOG_WARNING,
"%s: Have you reduced the number of "
"cluster/replicate's children but are "
"continuing to use the same backend? "
"Please populate the backend freshly "
"when doing such a migration.",
strerror (errno));
}
} else {
ret = fd_ctx_get (handle->fd, this, &tmp_pfd);
if (ret < 0) {