How do I increase the capacity of the Eclipse output console?

Question

Even with the "scroll lock" option enabled for the Eclipse console, eventually it overfills and starts auto-scrolling on me.

Is there some way of increasing the capacity of the console so that it stores more lines? I wasn't able to find the option.

Sherri

Thank you, all. I kept looking under general and under Java, didn't think that this would be part of Run/Debug. My bad. – Sherri

one thing i love about the pref window on eclipse, you can just type in a search in the top left , i can never remember where this stuff is buried, but if you type console , you can see (at least with my install CDT,galileo) that there is a limit setting for the build console as well as the run console as well as the CVS console:) – Riana

@iondiode: That's right. The funny thing is, I looked for such a search window and didn't see it. Then I realized that I am so used to the mac and having it on the top-right, that I never noticed the text box above the tree on the left! – Sherri

possible duplicate of adjusting eclipse console size – Marlonmarlow

Answer 1

Under Window > Preferences, go to the Run/Debug > Console section, then you should see an option "Limit console output." You can uncheck this or change the number in the "Console buffer size (characters)" text box below.

(This is in Galileo, Helios CDT, Kepler, Juno, Luna, Mars, Neon, Oxygen and 2018-09)

Showker

I can't believe this is my highest voted answer on SO. I memorised the C standard for nothing. – Showker

Caution: Deactivating this option is unfortunately very buggy. Deactivating the limit causes all kinds of strange behaviour (Juno) with regard to memory. I would advise against it. – Knickers

@Showker That option is there in Helios too – Deletion

If you do disable the limit, you are probably having memory problems because you never clear your console. Click the paper with the grey X on it once and a while. – Crackup

Is there any drawback ? – Malayalam

@detly, the path in Preferences has remained exactly the same for Oxygen as well. – Invitation

@Invitation Woohoo, my one-answer reputation farm continues! – Showker

Why not? It is still useful, Thank you. – Pre

It doesn't work for CDT users. See the other answer below. – Concave

Cmd + , for mac – Data

Answer 2

Open the Windows > Preferences menu.

Expand the Run/Debug > Console preferences.

Set the Console buffer size (characters) to something much bigger. 2147383647 / ~2GB is the upper limit (or 1000000 / ~1MB in older releases). Or just uncheck the Limit console output.

Kinnard

Upper limit is now 2147383647, about 2GB, as of Oxygen.1a Release (4.7.1a) Build id: 20171005-1200. – Lifeline

Answer 3

For CDT users / C/C++ build, also adjust the setting

in Window > Preferences

under C/C++ > Build > Console (!)

(This time in number of lines.)

This also affects the "CDT Global Build Console".

Aleph

Answer 4

Alternative

If your console is not empty, right click on the Console area > Preferences... > change the value for the Console buffer size (characters) (recommended) or uncheck the Limit console output (not recommended):

Protuberate

This is currently the best answer because the menu structure (i.e. Window/Preferences) has changed since the date the question was answered – Foulness

Answer 5

On the MAC OS X 10.9.5 and Eclipse Luna Service Release 1 (4.4.1), its not found under the Window menu, but instead under: Eclipse > Preferences > Run/Debug > Console.

Visual

Answer 6

Window > Preferences, go to the Run/Debug > Console section >> "Limit console output.>>Console buffer size(characters):" (This option can be seen in Eclipse Indigo ,but it limits buffer size at 1,000,000 )

Confusion

Or click Cmd + , – Data

Answer 7

Under Window > Preferences, go to the Run/Debug > Console section, then you should see an option "Limit console output." You can unchecked this or change the number in the "Console buffer size (characters)" text box below. Do Unchecked.

This is for the Eclipse like Galileo, Kepler, Juno, Luna, Mars and Helios.

Lugar

Answer 8

Please go through the below guidelines. Do the changes accordingly.

Springe

Answer 9

For C++ users, to increase the Build console output size see here

ie Windows > Preference > C/C++ > Build > Console

Ratel

Answer 10

Eclipse has limit of 32000 characters per line. If you have, for example JSONObject, which you want to log into console, you won't succeed. You can't handle this with the checkbox. Tested

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