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Add max file size bootstrap check#25974

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jasontedor merged 4 commits intoelastic:masterfrom
jasontedor:max-file-size-check
Jul 31, 2017
Merged

Add max file size bootstrap check#25974
jasontedor merged 4 commits intoelastic:masterfrom
jasontedor:max-file-size-check

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@jasontedor jasontedor commented Jul 31, 2017

This commit adds a bootstrap check for the maximum file size, and ensures the limit is set correctly when Elasticsearch is installed as a service on systemd-based systems.

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Add max file size bootstrap check
e17076d 
This commit adds a bootstrap check for the maximum file size, and
ensures the limit is set correctly when Elasticsearch is installed as a
service on systemd-based systems.
@jasontedor
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jasontedor commented Jul 31, 2017

Otherwise this can happen:

java.io.IOException: File too large
	at sun.nio.ch.FileDispatcherImpl.write0(Native Method) ~[?:?]
	at sun.nio.ch.FileDispatcherImpl.write(FileDispatcherImpl.java:60) ~[?:?]
	at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93) ~[?:?]
	at sun.nio.ch.IOUtil.write(IOUtil.java:65) ~[?:?]
	at sun.nio.ch.FileChannelImpl.write(FileChannelImpl.java:211) ~[?:?]
	at java.nio.channels.Channels.writeFullyImpl(Channels.java:78) ~[?:1.8.0_141]
	at java.nio.channels.Channels.writeFully(Channels.java:101) ~[?:1.8.0_141]
	at java.nio.channels.Channels.access$000(Channels.java:61) ~[?:1.8.0_141]
	at java.nio.channels.Channels$1.write(Channels.java:174) ~[?:1.8.0_141]
	at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) ~[?:1.8.0_141]
	at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) ~[?:1.8.0_141]
	at org.elasticsearch.index.translog.TranslogWriter$BufferedChannelOutputStream.flush(TranslogWriter.java:450) ~[elasticsearch-6.0.0-beta1-SNAPSHOT.jar:6.0.0-beta1-SNAPSHOT]

jpountz
jpountz approved these changes Jul 31, 2017
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core/src/main/java/org/elasticsearch/bootstrap/JNACLibrary.java
public static final int ENOMEM = 12;
public static final int RLIMIT_MEMLOCK = Constants.MAC_OS_X ? 6 : 8;
public static final int RLIMIT_AS = Constants.MAC_OS_X ? 5 : 9;
public static final int RLIMIT_FSIZE = Constants.MAC_OS_X ? 1 : 1;
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the ternary operator looks useless?

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@jasontedor jasontedor Jul 31, 2017

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I prefer it this way because it's consistent with how the other RLIMIT constants are defined where there are differences between macOS and Linux.

docs/reference/setup/bootstrap-checks.asciidoc Outdated

The segment files that are the components of individual shards and the translog
generations that are components of the translog can get large (on the order of
hundreds of megabytes and even extending into gigabytes). On systems where the
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the phrasing ("even") suggests having files that are 1GB is uncommon, while I think it is actually common?

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You're right, that was not intended, I pushed ee35808.

qa/evil-tests/src/test/java/org/elasticsearch/bootstrap/EvilJNANativesTests.java Outdated
public void testSetMaxFileSize() throws IOException {
if (Constants.LINUX) {
final List<String> lines = Files.readAllLines(PathUtils.get("/proc/self/limits"));
if (!lines.isEmpty()) {
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this if statement looks useless?

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Inside this block we make assertions and return from the method. Otherwise, there is a fail below this block that fails the test because we can not assert anything if for some reason we did not read any content from /proc/self/limits

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the for loop will prevent from reaching the assertions and returning if lines is empty?

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You're right, I pushed 34a82d5.

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jasontedor commented Jul 31, 2017

test this please

@jasontedor jasontedor merged commit 2ef0f8a into elastic:master Jul 31, 2017
jasontedor added a commit that referenced this pull request Jul 31, 2017
@jasontedor
Add max file size bootstrap check
6d6cd49 
This commit adds a bootstrap check for the maximum file size, and
ensures the limit is set correctly when Elasticsearch is installed as a
service on systemd-based systems.

Relates #25974
jasontedor added a commit that referenced this pull request Jul 31, 2017
@jasontedor
Add max file size bootstrap check
7b9934a 
This commit adds a bootstrap check for the maximum file size, and
ensures the limit is set correctly when Elasticsearch is installed as a
service on systemd-based systems.

Relates #25974
jasontedor added a commit that referenced this pull request Jul 31, 2017
@jasontedor
Add max file size bootstrap check
8c21797 
This commit adds a bootstrap check for the maximum file size, and
ensures the limit is set correctly when Elasticsearch is installed as a
service on systemd-based systems.

Relates #25974
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jasontedor commented Jul 31, 2017

Thank you for the review @jpountz.

@jasontedor jasontedor deleted the max-file-size-check branch July 31, 2017 12:03
@lcawl lcawl removed the v6.1.0 label Dec 12, 2017
@jimczi jimczi added v7.0.0-beta1 and removed v7.0.0 labels Feb 7, 2019
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@jasontedor @jpountz @colings86 @jimczi @lcawl