mirror of https://github.com/apache/druid.git
63 lines
1.9 KiB
Perl
Executable File
63 lines
1.9 KiB
Perl
Executable File
#!/usr/bin/env perl
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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use strict;
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use warnings;
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use Socket;
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sub try_bind {
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my ($port, $addr) = @_;
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socket(my $sock, PF_INET, SOCK_STREAM, Socket::IPPROTO_TCP) or die "socket: $!";
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setsockopt($sock, SOL_SOCKET, SO_REUSEADDR, pack("l", 1)) or die "setsockopt: $!";
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if (!bind($sock, sockaddr_in($port, $addr))) {
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print STDERR <<"EOT";
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Cannot start up because port $port is already in use.
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If you need to change your ports away from the defaults, check out the
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configuration documentation:
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https://druid.apache.org/docs/latest/configuration/index.html
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If you believe this check is in error, or if you have changed your ports away
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from the defaults, you can skip this check using an environment variable:
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export DRUID_SKIP_PORT_CHECK=1
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EOT
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exit 1;
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}
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shutdown($sock, 2);
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}
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my $skip_var = $ENV{'DRUID_SKIP_PORT_CHECK'};
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if ($skip_var && $skip_var ne "0" && $skip_var ne "false" && $skip_var ne "f") {
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exit 0;
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}
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my @ports = @ARGV;
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if (!@ports) {
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@ports = (1527, 2181, 8081, 8082, 8083, 8090, 8091, 8100, 8200, 8888);
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}
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for my $port (@ports) {
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try_bind($port, INADDR_ANY);
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try_bind($port, inet_aton("127.0.0.1"));
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}
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