[BUG] _cat/indices does not honor bytes option

[cinhtau]

What is the bug?

You can pass the bytes parameter to the _cat/indices API for retrieving the values in your desired unit, here it is bytes.

GET _cat/indices?v&h=index,docs.count,pri.store.size&bytes=b

However, the pri.store.size is empty. Without the bytes option, the value is set in various units.

How can one reproduce the bug?

Example Code

        IndicesRequest indicesRequest = new IndicesRequest.Builder().
        headers("index,docs.count,pri.store.size&bytes=b").sort("creation.date").build();
        IndicesResponse indicesResponse = client.cat().indices(indicesRequest);

        String template = "Index %s has %s documents and uses %s bytes.";

        for (IndicesRecord record : indicesResponse.valueBody()) {
            String formattedString = String.format(template, record.index(),record.docsCount(),record.priStoreSize());
            System.out.println(formattedString);
        }

What is the expected behavior?

pri.store.size should not be null.

What is your host/environment?

na

Do you have any screenshots?

Without option

Index logs-001729 has 130205517 documents and uses 79.5gb bytes.
Index logs-001730 has 131095719 documents and uses 79.8gb bytes.
Index logs-001731 has 130679164 documents and uses 79.7gb bytes.
Index logs-001732 has 133664129 documents and uses 79.9gb bytes.

With option

Index logs-001729 has 130205517 documents and uses null bytes.
Index logs-001730 has 131095719 documents and uses null bytes.
Index logs-001731 has 130679164 documents and uses null bytes.
Index logs-001732 has 133664129 documents and uses null bytes.

Do you have any additional context?

na

[cinhtau]

Reading the Source and Java Docs it had to be done like this

IndicesRequest indicesRequest = new IndicesRequest.Builder().bytes(Bytes.Bytes)
                .headers("index,docs.count,pri.store.size").sort("creation.date").build();

Missing documentation led me to believe it work in Java the same as in DevTools, but passing the option gave me the values in bytes.