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Purge Kafka Topic
...topic.enable=true in file config/server.properties, as the warning printed by the mentioned command says Note: This will have no impact if delete.topic.enable is not set to true.
– Patrizio Bertoni
Aug 19 '15 at 13:20
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How do I convert from BLOB to TEXT in MySQL?
...e of handling I'd like to change the format in the database to TEXT... Any ideas how easily to make the change so as not to interrupt the data - I guess it will need to be encoded properly?
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WebSockets vs. Server-Sent events/EventSource
...dition, Server-Sent Events have a variety of features that WebSockets lack by design such as automatic reconnection, event IDs, and the ability to send arbitrary events.
TLDR summary:
Advantages of SSE over Websockets:
Transported over simple HTTP instead of a custom protocol
Can be poly-fill...
Professional jQuery based Combobox control? [closed]
...
This is by far the easiest to integrate if your existing code uses an old html dropdown. I used this one.
– Max
Jan 22 '15 at 10:00
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Does order of where clauses matter in SQL?
...e:WHERE T1.col_1/T2.col_2 > 10 AND T2.col_2 <> 0 and got a DIVIDE BY 0 error. After I switched the order the conditions the query executed succesfully. Then I switched the order back so I would expect to get the error again, but this time it worked!In the end my conclusion was that for the ...
How do I implement basic “Long Polling”?
...ly freeze up. This would better be done checking if the file contains a valid JSON response, and/or keeping a running total of requests-per-minute/second, and pausing appropriately.
If the page errors, it appends the error to the #messages div, waits 15 seconds and then tries again (identical to ho...
How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?
... in /dev is useless, since you already have the name in /sys/class/tty (as by default udev creates the /dev/DEVNAME node). What you are interested about is any "symbolic" link in /dev that points to such device. This is much much harder to find.
– xryl669
May 3...
Vertically align text next to an image?
... It's certainly not bizarre but I can see how newcomers can be tripped up by this. By default an image will be placed on the text baseline. All you are doing is moving where the image is attached relative to the text. As for using float:left, you should be doing that either on the block that conta...
Is it possible to group projects in Eclipse?
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
How can I initialise a static Map?
...out, Java 9 will finally make this clean to do using nothing but pure JDK, by adding convenience factory methods for collections:
static final Map<Integer, String> MY_MAP = Map.of(
1, "one",
2, "two"
);
shar...