# ArrayIndexOutOfBoundsException in client.put

**URL:** <https://discuss.aerospike.com/t/arrayindexoutofboundsexception-in-client-put/857>\
**Category:** Java Client\
**Created:** [January 22, 2015, 4:51pm UTC](https://discuss.aerospike.com/t/arrayindexoutofboundsexception-in-client-put/857 "2015-01-22T16:51:59Z")\
**Posts on this page:** 11\
**Page:** 1

<div class="post-metadata">

**Author:** ![holmes](https://avatars.discourse-cdn.com/v4/letter/h/e95f7d/32.png) [@holmes](https://discuss.aerospike.com/u/holmes)\
**Post date:** [January 22, 2015, 4:51pm UTC](https://discuss.aerospike.com/t/arrayindexoutofboundsexception-in-client-put/857/1 "2015-01-22T16:51:59Z")

</div>

Hi,

I am getting this error while inserting bins :

> java.lang.ArrayIndexOutOfBoundsException: 70331 at com.aerospike.client.command.Buffer.stringToUtf8(Buffer.java:186) ~[aerospike-client-3.0.31.jar:na] at com.aerospike.client.Value$StringValue.write(Value.java:352) ~[aerospike-client-3.0.31.jar:na] at com.aerospike.client.command.Command.writeOperation(Command.java:524) ~[aerospike-client-3.0.31.jar:na] at com.aerospike.client.command.Command.setWrite(Command.java:83) ~[aerospike-client-3.0.31.jar:na] at com.aerospike.client.command.WriteCommand.writeBuffer(WriteCommand.java:49) ~[aerospike-client-3.0.31.jar:na] at com.aerospike.client.command.SyncCommand.execute(SyncCommand.java:47) ~[aerospike-client-3.0.31.jar:na] at com.aerospike.client.AerospikeClient.put(AerospikeClient.java:295) ~[aerospike-client-3.0.31.jar:na]

Am I reaching any limit here ?

Thanks

---

<div class="post-metadata">

**Author:** ![helipilot50](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.aerospike.com/helipilot50/32/59_2.png) [@helipilot50](https://discuss.aerospike.com/u/helipilot50)\
**Post date:** [January 22, 2015, 5:19pm UTC](https://discuss.aerospike.com/t/arrayindexoutofboundsexception-in-client-put/857/2 "2015-01-22T17:19:41Z")

</div>

Hi Holmes,

Can you post the exact code you are using in the put(), and how many Bins you are writing?

There is a limit of 32K unique Bin names per namespace. How many have you written already?

Peter

---

<div class="post-metadata">

**Author:** ![holmes](https://avatars.discourse-cdn.com/v4/letter/h/e95f7d/32.png) [@holmes](https://discuss.aerospike.com/u/holmes)\
**Post date:** [January 23, 2015, 6:47am UTC](https://discuss.aerospike.com/t/arrayindexoutofboundsexception-in-client-put/857/3 "2015-01-23T06:47:35Z")

</div>

Hi,

We have not reached that limit for sure. Its not related to unique binNames as we handled that case separately. Also I have tested that limit and the error message is not this.

This may have to to do with the amount of data being pushed in bins. I am inserting about 20 unique bins (all less than 13 characters) Here is the code snippet :

```
final Bin[] bins = new Bin[row.size()];//row is --> Map<String, Object> row
int i = 0;
for (Map.Entry<String, Object> entry : row.entrySet()) {
            String column = entry.getKey();
            bins[i++] = new Bin(column, (String) entry.getValue());
}
client.put(writePolicy, k, bins); // WritePolicy writePolicy = new WritePolicy();

```

While debugging I found that in this loop in Command class Line:83 (aerospike-client-3.0.31)

> ```
> for (Bin bin : bins) {
> writeOperation(bin, operation);
> }
> 
> ```

its able to process few bins and then AIOBE is thrown.

Thanks.

---

<div class="post-metadata">

**Author:** ![holmes](https://avatars.discourse-cdn.com/v4/letter/h/e95f7d/32.png) [@holmes](https://discuss.aerospike.com/u/holmes)\
**Post date:** [January 23, 2015, 7:26am UTC](https://discuss.aerospike.com/t/arrayindexoutofboundsexception-in-client-put/857/4 "2015-01-23T07:26:32Z")

</div>

More update :

There are a total of **29 bins** here. In the same `Command.setWrite` method , there is first a _estimation of buffer size_. Here its estimate is **70331**.

But on `WriteCommand.writeOperation(Bin bin, Operation.Type operation)` method , when it is updating the last bin (#29 in the above loop)

> int valueLength = bin.value.write(dataBuffer, dataOffset + OPERATION\_HEADER\_SIZE + nameLength);

the value of _dataOffset_ is **70320** and total value of `dataOffset + OPERATION_HEADER_SIZE + nameLength = 70331`.

So, next in `Buffer.stringToUtf8(String s, byte[] buf, int offset)` method, it tries to increment the buffer index to 70331+1 and fails.

```
for (int i = 0; i < length; i++) {
            int c = s.charAt(i);
            if (c < 0x80) {
                buf[offset++] = (byte) c; // <--- Error here
            }
            else if (c < 0x...

```

Thanks.

---

<div class="post-metadata">

**Author:** ![helipilot50](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.aerospike.com/helipilot50/32/59_2.png) [@helipilot50](https://discuss.aerospike.com/u/helipilot50)\
**Post date:** [January 28, 2015, 6:25am UTC](https://discuss.aerospike.com/t/arrayindexoutofboundsexception-in-client-put/857/5 "2015-01-28T06:25:17Z")

</div>

Hi Holmes,

In your code, where is `i` declared and initialized?

Peter

---

<div class="post-metadata">

**Author:** ![holmes](https://avatars.discourse-cdn.com/v4/letter/h/e95f7d/32.png) [@holmes](https://discuss.aerospike.com/u/holmes)\
**Post date:** [January 28, 2015, 7:49am UTC](https://discuss.aerospike.com/t/arrayindexoutofboundsexception-in-client-put/857/6 "2015-01-28T07:49:45Z")

</div>

Hi @helipilot50,

Updated the code.  
I saw the default size of buffer is 8192 defined in `ThreadLocalData`

---

<div class="post-metadata">

**Author:** ![Brian](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.aerospike.com/brian/32/2211_2.png) [@Brian](https://discuss.aerospike.com/u/Brian)\
**Post date:** [February 3, 2015, 10:58pm UTC](https://discuss.aerospike.com/t/arrayindexoutofboundsexception-in-client-put/857/7 "2015-02-03T22:58:13Z")

</div>

Hi Holmes,

Your analysis is correct. The write process is:

1. Calculate buffer size from command arguments.

2. Find or allocate a suitable buffer.

3. Write command to buffer.

If the buffer size is not calculated correctly and the size is greater than the default buffer size (8K), then you will get a buffer overflow. I suspect “Buffer.estimateSizeUtf8()” may be calculating a different size than is actually written, but it could be other estimations as well.

Is it possible to provide a small sample program that reproduces the problem?

Most strings will be calculated correctly, but I’m not sure about some multi-byte UTF8 characters.

---

<div class="post-metadata">

**Author:** ![ayush](https://avatars.discourse-cdn.com/v4/letter/a/ebca7d/32.png) [@ayush](https://discuss.aerospike.com/u/ayush)\
**Post date:** [February 6, 2015, 10:34pm UTC](https://discuss.aerospike.com/t/arrayindexoutofboundsexception-in-client-put/857/8 "2015-02-06T22:34:01Z")

</div>

We’re also getting the same error with client version 3.0.33.

```
client.put(asWritePolicy, new Key("main", "test1", keyValue), new Bin("data", data), new Bin("schema", "1"))

```

where keyValue is a 36 length string and data is a byte array of length 8208. Write policy has sendkey = true as well.

Update: After a little more testing. It seems that the issue doesn’t occur if we disable sendkey. For now, I’m adding the key to a bin, but this still seems like an issue that should get resolved.

---

<div class="post-metadata">

**Author:** ![Brian](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.aerospike.com/brian/32/2211_2.png) [@Brian](https://discuss.aerospike.com/u/Brian)\
**Post date:** [February 7, 2015, 1:35am UTC](https://discuss.aerospike.com/t/arrayindexoutofboundsexception-in-client-put/857/9 "2015-02-07T01:35:16Z")

</div>

Hi Ayush,

Thanks for the sample code. The “sendkey=true” was the crucial piece as that code had a bug in it. The fix will be in the next java client release.

-Brian

---

<div class="post-metadata">

**Author:** ![holmes](https://avatars.discourse-cdn.com/v4/letter/h/e95f7d/32.png) [@holmes](https://discuss.aerospike.com/u/holmes)\
**Post date:** [February 9, 2015, 4:42am UTC](https://discuss.aerospike.com/t/arrayindexoutofboundsexception-in-client-put/857/10 "2015-02-09T04:42:58Z")

</div>

@ayush , thanks !  
I too found out about sendkey feature causing this issue and have disabled it for now. Also, @helipilot50 suggested to use extra bin to store user key data [in this post](https://discuss.aerospike.com/t/writepolicy-sendkey-effect/902/2) .

@Brian, thanks for looking into it. Is [Java Client Library Release Note | Download | Aerospike](http://www.aerospike.com/download/client/java/notes.html#3.0.34) the release as I can see a fix for user key send buffer byte size calculation.

---

<div class="post-metadata">

**Author:** ![Brian](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.aerospike.com/brian/32/2211_2.png) [@Brian](https://discuss.aerospike.com/u/Brian)\
**Post date:** [February 26, 2015, 5:50pm UTC](https://discuss.aerospike.com/t/arrayindexoutofboundsexception-in-client-put/857/11 "2015-02-26T17:50:51Z")

</div>

Yes, 3.0.34 contains the sendKey fix. I recommend upgrading to the latest client, 3.0.35 to get other fixes.