public synchronized void open() throws IOException {
// TODO (jon) be less strict. ?? need to return on and figure out why thisis
// wrong, add
// latches.
// Preconditions.checkState(state == ManagerState.CLOSED,
// "Must be in CLOSED state to open, currently " + state);
// make the dirs if they do not exist
if (!FileUtil.makeDirs(importDir)) {
throw new IOException("Unable to create import dir: " + importDir);
}
if (!FileUtil.makeDirs(writingDir)) {
throw new IOException("Unable to create writing dir: " + writingDir);
}
if (!FileUtil.makeDirs(loggedDir)) {
throw new IOException("Unable to create logged dir: " + loggedDir);
}
if (!FileUtil.makeDirs(sendingDir)) {
throw new IOException("Unable to create sending dir: " + sendingDir);
}
if (!FileUtil.makeDirs(errorDir)) {
throw new IOException("Unable to create error dir: " + sendingDir);
}
state = ManagerState.OPEN;
}
/**
* This function checks the agent logs dir to make sure that the process has the ability to the
* directory if necessary, that the path if it does exist is a directory, and that it can in fact
* create files inside of the directory. If it fails any of these, it throws an exception.
*
* <p>Finally, it checks to see if the path is in /tmp and warns the user that this may not be the
* best idea.
*/
public static void nodeConfigChecksOk() throws IOException {
// TODO (jon) if we add more checks in here, make the different managers
// responsible for throwing an Exception on construction instead.
FlumeConfiguration conf = FlumeConfiguration.get();
String s = conf.getAgentLogsDir();
File f = new File(s);
if (!FileUtil.makeDirs(f)) {
throw new IOException("Path to Log dir cannot be created: '" + s + "'. Check permissions?");
}
if (!f.isDirectory()) {
throw new IOException("Log dir '" + s + "' already exists as a file. Check log dir path.");
}
File f2 = null;
try {
f2 = File.createTempFile("initcheck", ".test", f);
} catch (IOException e) {
throw new IOException("Failure to write in log directory: '" + s + "'. Check permissions?");
}
if (!f2.delete()) {
throw new IOException(
"Unable to delete "
+ f2
+ " from log directory "
+ "(but writing succeeded) - something is strange here");
}
File tmp = new File("/tmp");
File cur = f;
while (cur != null) {
if (cur.equals(tmp)) {
LOG.warn("Log directory is writing inside of /tmp. This data may not survive reboot!");
break;
}
cur = cur.getParentFile();
}
}