1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.spark.deploy.worker.ui
import java.io.File
import javax.servlet.http.HttpServletRequest
import scala.xml.Node
import org.apache.spark.internal.Logging
import org.apache.spark.ui.{UIUtils, WebUIPage}
import org.apache.spark.util.Utils
import org.apache.spark.util.logging.RollingFileAppender
private[ui] class LogPage(parent: WorkerWebUI) extends WebUIPage("logPage") with Logging {
private val worker = parent.worker
private val workDir = new File(parent.workDir.toURI.normalize().getPath)
private val supportedLogTypes = Set("stderr", "stdout")
def renderLog(request: HttpServletRequest): String = {
val defaultBytes = 100 * 1024
val appId = Option(request.getParameter("appId"))
val executorId = Option(request.getParameter("executorId"))
val driverId = Option(request.getParameter("driverId"))
val logType = request.getParameter("logType")
val offset = Option(request.getParameter("offset")).map(_.toLong)
val byteLength = Option(request.getParameter("byteLength")).map(_.toInt).getOrElse(defaultBytes)
val logDir = (appId, executorId, driverId) match {
case (Some(a), Some(e), None) =>
s"${workDir.getPath}/$appId/$executorId/"
case (None, None, Some(d)) =>
s"${workDir.getPath}/$driverId/"
case _ =>
throw new Exception("Request must specify either application or driver identifiers")
}
val (logText, startByte, endByte, logLength) = getLog(logDir, logType, offset, byteLength)
val pre = s"==== Bytes $startByte-$endByte of $logLength of $logDir$logType ====\n"
pre + logText
}
def render(request: HttpServletRequest): Seq[Node] = {
val defaultBytes = 100 * 1024
val appId = Option(request.getParameter("appId"))
val executorId = Option(request.getParameter("executorId"))
val driverId = Option(request.getParameter("driverId"))
val logType = request.getParameter("logType")
val offset = Option(request.getParameter("offset")).map(_.toLong)
val byteLength = Option(request.getParameter("byteLength")).map(_.toInt).getOrElse(defaultBytes)
val (logDir, params, pageName) = (appId, executorId, driverId) match {
case (Some(a), Some(e), None) =>
(s"${workDir.getPath}/$a/$e/", s"appId=$a&executorId=$e", s"$a/$e")
case (None, None, Some(d)) =>
(s"${workDir.getPath}/$d/", s"driverId=$d", d)
case _ =>
throw new Exception("Request must specify either application or driver identifiers")
}
val (logText, startByte, endByte, logLength) = getLog(logDir, logType, offset, byteLength)
val linkToMaster = <p><a href={worker.activeMasterWebUiUrl}>Back to Master</a></p>
val range = <span>Bytes {startByte.toString} - {endByte.toString} of {logLength}</span>
val backButton =
if (startByte > 0) {
<a href={"?%s&logType=%s&offset=%s&byteLength=%s"
.format(params, logType, math.max(startByte - byteLength, 0), byteLength)}>
<button type="button" class="btn btn-default">
Previous {Utils.bytesToString(math.min(byteLength, startByte))}
</button>
</a>
} else {
<button type="button" class="btn btn-default" disabled="disabled">
Previous 0 B
</button>
}
val nextButton =
if (endByte < logLength) {
<a href={"?%s&logType=%s&offset=%s&byteLength=%s".
format(params, logType, endByte, byteLength)}>
<button type="button" class="btn btn-default">
Next {Utils.bytesToString(math.min(byteLength, logLength - endByte))}
</button>
</a>
} else {
<button type="button" class="btn btn-default" disabled="disabled">
Next 0 B
</button>
}
val content =
<div>
{linkToMaster}
<div>
<div style="float:left; margin-right:10px">{backButton}</div>
<div style="float:left;">{range}</div>
<div style="float:right; margin-left:10px">{nextButton}</div>
</div>
<br />
<div style="height:500px; overflow:auto; padding:5px;">
<pre>{logText}</pre>
</div>
</div>
UIUtils.basicSparkPage(content, logType + " log page for " + pageName)
}
/** Get the part of the log files given the offset and desired length of bytes */
private def getLog(
logDirectory: String,
logType: String,
offsetOption: Option[Long],
byteLength: Int
): (String, Long, Long, Long) = {
if (!supportedLogTypes.contains(logType)) {
return ("Error: Log type must be one of " + supportedLogTypes.mkString(", "), 0, 0, 0)
}
// Verify that the normalized path of the log directory is in the working directory
val normalizedUri = new File(logDirectory).toURI.normalize()
val normalizedLogDir = new File(normalizedUri.getPath)
if (!Utils.isInDirectory(workDir, normalizedLogDir)) {
return ("Error: invalid log directory " + logDirectory, 0, 0, 0)
}
try {
val files = RollingFileAppender.getSortedRolledOverFiles(logDirectory, logType)
logDebug(s"Sorted log files of type $logType in $logDirectory:\n${files.mkString("\n")}")
val totalLength = files.map { _.length }.sum
val offset = offsetOption.getOrElse(totalLength - byteLength)
val startIndex = {
if (offset < 0) {
0L
} else if (offset > totalLength) {
totalLength
} else {
offset
}
}
val endIndex = math.min(startIndex + byteLength, totalLength)
logDebug(s"Getting log from $startIndex to $endIndex")
val logText = Utils.offsetBytes(files, startIndex, endIndex)
logDebug(s"Got log of length ${logText.length} bytes")
(logText, startIndex, endIndex, totalLength)
} catch {
case e: Exception =>
logError(s"Error getting $logType logs from directory $logDirectory", e)
("Error getting logs due to exception: " + e.getMessage, 0, 0, 0)
}
}
}
|
