[Libguestfs] [PATCH nbdkit] vddk: Document issue with out of memory errors (RHBZ#1614276).

Thanks: Mor Kalfon, Tomáš Golembiovský. --- plugins/vddk/nbdkit-vddk-plugin.pod | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/plugins/vddk/nbdkit-vddk-plugin.pod b/plugins/vddk/nbdkit-vddk-plugin.pod index 7e7053c..57a371a 100644 --- a/plugins/vddk/nbdkit-vddk-plugin.pod +++ b/plugins/vddk/nbdkit-vddk-plugin.pod @@ -325,6 +325,35 @@ For VMs with multiple disks, it would be nice to map the disk names to NBD export names. However nbdkit core will need to be extended to support this. +=head2 Out of memory errors + +In the verbose log you may see errors like: + + nbdkit: vddk[3]: error: [NFC ERROR] NfcFssrvrProcessErrorMsg: + received NFC error 5 from server: Failed to allocate the + requested 2097176 bytes + +This seems especially common when there are multiple parallel +connections open to the VMware server. + +These can be caused by resource limits set on the VMware server. You +can increase the limit for the NFC service by editing +F</etc/vmware/hostd/config.xml> and adjusting the +C<E<lt>maxMemoryE<gt>> setting: + + <nfcsvc> + <path>libnfcsvc.so</path> + <enabled>true</enabled> + <maxMemory>50331648</maxMemory> + <maxStreamMemory>10485760</maxStreamMemory> + </nfcsvc> + +and restarting the C<hostd> service: + + # /etc/init.d/hostd restart + +For more information see L<https://bugzilla.redhat.com/1614276>;. + =head1 SEE ALSO L<nbdkit(1)>, -- 2.18.0