topic Re: how to handle NaAPIFailedException : Unable to create iterator (errno=13001) Exception in Software Development Kit (SDK) and API Discussions

how to handle NaAPIFailedException : Unable to create iterator (errno=13001) Exception

KASIMBASHA1 — Fri, 11 Jan 2013 10:35:01 GMT

I observed below exception from NetApps API jar File : manageontap.jar while accessing volumes in Filer.

Can please state the reasons for NaAPIFailedException and below is the stacktrace

Exception StackTrace:

netapp.manage.NaAPIFailedException: Unable to create iterator (errno=13001)

at netapp.manage.NaServer.invokeElem(NaServer.java:653)

...........................

Similar issue is discussed in NetApp community Portal at below URL :https://communities.netapp.com/thread/16241

but not with sufficient information.

Re: how to handle NaAPIFailedException : Unable to create iterator (errno=13001) Exception

aashray — Fri, 18 Jan 2013 16:22:28 GMT

Hi,

Could you check if your volume is full (or almost full) ?

The iterative APIs will create few intermediate files which needs some writable space in volume. And this is not possible when the root volume(/vol/vol0) is full. This could be a reason for the error 'NaAPIFailedException:Unable to create iterator'.

- Aashray Arora

Re: how to handle NaAPIFailedException : Unable to create iterator (errno=13001) Exception

KASIMBASHA1 — Fri, 18 Jan 2013 19:45:26 GMT

Hey AAshray,

Thanks for reply.

When got the issue for first time the volume size is 50GB and 100% full (50GB) in the filer. Later, i added 5 GB to the volume size then the volume size is 55GB and 90% used.

Still i got the same issue.

Can you please suggest any alternate.

Re: how to handle NaAPIFailedException : Unable to create iterator (errno=13001) Exception

aashray — Sat, 19 Jan 2013 05:21:44 GMT

I'll try to find out soon. Can you please share with me your code that is failing and also can you let me know if other APIs are working fine?

Are you using 7-mode or C-mode?

Re: how to handle NaAPIFailedException : Unable to create iterator (errno=13001) Exception

KASIMBASHA1 — Wed, 23 Jan 2013 05:00:12 GMT

Hi Aashar,

Thanks for your reply.

The issue is at last line of our sample code. After 155 successful Iterations, The API invocation is failed

with following exception Stack Trace:

Exception Stack Trace

netapp.manage.NaAPIFailedException: Unable to create iterator (errno=13001)

at netapp.manage.NaServer.invokeElem(NaServer.java:653)

.........

Sample Code:

//We observed above exception from NetApps API jar File : manageontap.jar

NaElement xi, xo, xii, xoo, xiii, xooo;

String volName="xxxx"

xi=new NaElement("snapshot-list-info");

xi.addChildElem(new NaElement("terse", "true"));

xi.addChildElem(new NaElement("volume", volName));

xo=server.invokeElem(xi);

List snapshots= xo.getChildByName("snapshots").getChildren();

for(Iterator k=snapshots.iterator(); k.hasNext();){

NaElement snapshot=(NaElement) k.next();

String snapshotName=snapshot.getChildContent("name");

String dirpath="/vol/"+volName+"/.snapshot/"+snapshotName;

xii=new NaElement("file-list-directory-iter-start");

xii.addChildElem(new NaElement("path", dirpath));

xoo=server.invokeElem(xii);

......

I am not sure about which mode is using whether 7-mode or C-mode we are using 7-Mode and Can you please explain how this mode related to this issue ?

Re: how to handle NaAPIFailedException : Unable to create iterator (errno=13001) Exception

KASIMBASHA1 — Mon, 28 Jan 2013 08:47:55 GMT

Can any one help me and please state the reasons for NaAPIFailedException

Re: how to handle NaAPIFailedException : Unable to create iterator (errno=13001) Exception

sens — Mon, 28 Jan 2013 09:39:36 GMT

Hi,

If you are looking for how to handle the NaAPIFailedException and get the reason of the failure, please see the snippet below:

...

xii=new NaElement("file-list-directory-iter-start");

xii.addChildElem(new NaElement("path", dirpath));

try {

} catch (NaAPIFailedException e) {

String message ="results status=\"failed\" reason=\""

+ e.getReason() + "\" errno=\"" + e.getErrno() + "\"";

System.out.println("Exception Occured:\n" + message);

}

However, if you are looking for the root cause of the failure, then it will require a little more investigation.

Can you kindly let us know which Data ONTAP version and NetApp Manageability SDK (formerly known as ManageONTAP SDK) you are using?

On what platform are you running your client (this program)? Is this issue reproducible using "apitest" and "ZExplore Development Interface (ZEDI)"?

Regards,

Sen.

Re: how to handle NaAPIFailedException : Unable to create iterator (errno=13001) Exception

KASIMBASHA1 — Mon, 28 Jan 2013 10:59:01 GMT

Hi Sens,

Thanks for your reply.

I am for looking for the root cause of the failure and below are required details

ONTAP : NetApp Release 8.1.1 7-Mode

Mode :7-Mode

OS : Windows Server 2008

ManageONTAP : manage-ontap-sdk-3.0R1

APITEST/ZEDI : Not tested

We have implemented java program to communicate with NetApps using manageontap.jar File.

With Regards,

kasim Basha

Re: how to handle NaAPIFailedException : Unable to create iterator (errno=13001) Exception

KASIMBASHA1 — Fri, 08 Feb 2013 11:38:49 GMT

Sen,

any update for me

Re: how to handle NaAPIFailedException : Unable to create iterator (errno=13001) Exception

KASIMBASHA1 — Fri, 08 Feb 2013 11:43:30 GMT

Can any one help me and please state root cause for NaAPIFailedException: NaAPIFailedException: Unable to create iterator (errno=13001),details are mentioned in the issue description.

Re: how to handle NaAPIFailedException : Unable to create iterator (errno=13001) Exception

CHWOLDSEN — Tue, 01 Apr 2014 08:33:06 GMT

I know this thread is a bit old,yet I'd like to share a possible solution:

connect to your filer c$\etc and look for a folder called .zapi - this folder is most likely full! Rename it to e.g. .zapi_ and then restart your web api session again. It will be recreated and you can work again!

I have sent this answer to another (older) thread as well - but maybe it's better off here

Hope this still helps!

Chris

Re: how to handle NaAPIFailedException : Unable to create iterator (errno=13001) Exception

pauli — Thu, 28 Mar 2019 09:21:30 GMT

We got the error (750040) while running 7MTT chain of custody. rerun was always showing us this error again.

In the EMS log the error unable to create iterator and/or too many iterator files".

We renamed the /etc/.zapi direcory on the 7-Mode filers root Volume.

than we could rerun the "chain of custody" collect in 7MTT again.

Thanks for the tip.

unfortunately it failed again afterwards...

Re: how to handle NaAPIFailedException : Unable to create iterator (errno=13001) Exception

francoisbnc — Wed, 27 Mar 2019 15:32:27 GMT

Just to bring a small precision.

On my side I got these unexpected number of files in .zapi folder when used couple

file-list-directory-iter-start, file-list-directory-iter-next without implementing file-list-directory-iter-end element.