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RedisBungee
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Detect "imposter" Bungees (two Bungees with the same server-id).

This commit is contained in:
Tux 2014-03-02 14:28:18 -05:00
parent 49ea863da2
commit 4edfabfe98
1 changed files with 13 additions and 0 deletions
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13
src/main/java/com/imaginarycode/minecraft/redisbungee/RedisBungee.java
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@ -398,6 +398,19 @@ public final class RedisBungee extends Plugin implements Listener {
try {
rsc = pool.getResource();
rsc.exists(String.valueOf(System.currentTimeMillis()));
// If that worked, now we can check for an existing, alive Bungee:
File crashFile = new File(getDataFolder(), "restarted_from_crash.txt");
if (crashFile.exists())
crashFile.delete();
else if (rsc.exists("server:" + configuration.get("server-id") + ":playerCount")) {
if (Integer.valueOf(rsc.get("server:" + configuration.get("server-id") + ":playerCount")) > 0 &&
rsc.scard("server:" + configuration.getString("server-id") + ":usersOnline") > 0) {
getLogger().severe("You have launched a possible imposter BungeeCord instance. Another instance is already running.");
getLogger().severe("For data consistency reasons, RedisBungee will now disable itself.");
getLogger().severe("If this instance is coming up from a crash, create a file in your RedisBungee plugins directory with the name 'restarted_from_crash.txt' and RedisBungee will not perform this check.");
throw new RuntimeException("Possible imposter instance!");
}
}
getLogger().log(Level.INFO, "Successfully connected to Redis.");
} catch (JedisConnectionException e) {
if (rsc != null)