????????在Elasticsearch?官網(wǎng)下載了一個es的安裝包，準(zhǔn)備放在windows電腦上研究研究，下載下來之后啟動報錯。

JDK問題

jdk版本對應(yīng)

warning: ignoring JAVA_HOME=E:\dev\jdk\jdk17\jdk-17.0.10; using bundled JDK

Exception in thread "main" java.lang.RuntimeException: starting java failed with [1]

output:

#

# There is insufficient memory for the Java Runtime Environment to continue.

# Native memory allocation (mmap) failed to map 8506048512 bytes for G1 virtual space

# An error report file with more information is saved as:

# logs/hs_err_pid18980.log

error:

OpenJDK 64-Bit Server VM warning: INFO: os::commit_memory(0x0000000605000000, 8506048512, 0) failed; error='???????С?????????????' (DOS error/errno=1455)

at org.elasticsearch.server.cli.JvmOption.flagsFinal(JvmOption.java:120)

at org.elasticsearch.server.cli.JvmOption.findFinalOptions(JvmOption.java:87)

at org.elasticsearch.server.cli.JvmErgonomics.choose(JvmErgonomics.java:36)

at org.elasticsearch.server.cli.JvmOptionsParser.jvmOptions(JvmOptionsParser.java:139)

at org.elasticsearch.server.cli.JvmOptionsParser.determineJvmOptions(JvmOptionsParser.java:91)

at org.elasticsearch.server.cli.ServerProcess.createProcess(ServerProcess.java:208)

at org.elasticsearch.server.cli.ServerProcess.start(ServerProcess.java:104)

at org.elasticsearch.server.cli.ServerProcess.start(ServerProcess.java:88)

at org.elasticsearch.server.cli.ServerCli.startServer(ServerCli.java:247)

at org.elasticsearch.server.cli.ServerCli.execute(ServerCli.java:100)

at org.elasticsearch.common.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:54)

at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:85)

at org.elasticsearch.cli.Command.main(Command.java:50)

at org.elasticsearch.launcher.CliToolLauncher.main(CliToolLauncher.java:64)

????????度娘很多次，搜索warning: ignoring JAVA_HOME=E:\dev\jdk\jdk1.8; using bundled JDK

大多說的是JDK版本不一致，因此我又去下載了很多高版本的JDK，發(fā)現(xiàn)結(jié)果是一樣的?

warning: ignoring JAVA_HOME=E:\dev\jdk\jdk17; using bundled JDK

后面在elasticsearch-env.bat文件中發(fā)現(xiàn)他使用的是ES_JAVA_HOME，然后在環(huán)境變量中添加了ES_JAVA_HOME對應(yīng)jdk17

內(nèi)存問題

????????當(dāng)然沒有這么順利一下子就弄好了，改完這個之后，發(fā)現(xiàn)還是報錯

warning: ignoring JAVA_HOME=E:\dev\jdk\jdk17; using ES_JAVA_HOME
Exception in thread "main" java.lang.RuntimeException: starting java failed with [1]
output:
#
# There is insufficient memory for the Java Runtime Environment to continue.
# Native memory allocation (mmap) failed to map 8506048512 bytes for G1 virtual space
# An error report file with more information is saved as:
# logs/hs_err_pid8088.log
error:
Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x0000000605000000, 8506048512, 0) failed; error='???????С?????????????' (DOS error/errno=1455)
? ? ? ? at org.elasticsearch.server.cli.JvmOption.flagsFinal(JvmOption.java:120)
? ? ? ? at org.elasticsearch.server.cli.JvmOption.findFinalOptions(JvmOption.java:87)
? ? ? ? at org.elasticsearch.server.cli.JvmErgonomics.choose(JvmErgonomics.java:36)
? ? ? ? at org.elasticsearch.server.cli.JvmOptionsParser.jvmOptions(JvmOptionsParser.java:139)
? ? ? ? at org.elasticsearch.server.cli.JvmOptionsParser.determineJvmOptions(JvmOptionsParser.java:91)
? ? ? ? at org.elasticsearch.server.cli.ServerProcess.createProcess(ServerProcess.java:208)
? ? ? ? at org.elasticsearch.server.cli.ServerProcess.start(ServerProcess.java:104)
? ? ? ? at org.elasticsearch.server.cli.ServerProcess.start(ServerProcess.java:88)
? ? ? ? at org.elasticsearch.server.cli.ServerCli.startServer(ServerCli.java:247)
? ? ? ? at org.elasticsearch.server.cli.ServerCli.execute(ServerCli.java:100)
? ? ? ? at org.elasticsearch.common.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:54)
? ? ? ? at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:85)
? ? ? ? at org.elasticsearch.cli.Command.main(Command.java:50)
? ? ? ? at org.elasticsearch.launcher.CliToolLauncher.main(CliToolLauncher.java:64)

????????warning: ignoring JAVA_HOME=E:\dev\jdk\jdk17; using ES_JAVA_HOME，這里已經(jīng)發(fā)現(xiàn)他沒有JDK的問題了，后面的意思是存在內(nèi)存問題。

在jvm.options配置文件中，發(fā)現(xiàn)內(nèi)存的配置是注釋掉的，然后用的是多少我也不太清楚，當(dāng)我把他修改為4g（把注釋放開）后，就正常運(yùn)行了

另外發(fā)現(xiàn)亂碼的話，可以在文件中添加?-Dfile.encoding=GBK

?

SSL/TLS權(quán)限問題??

????????當(dāng)我看到啟動成功，滿環(huán)信心的時候，發(fā)現(xiàn)頁面訪問失敗。

? ? ? ? 多方尋找后，發(fā)現(xiàn)有可能是權(quán)限問題，嘗試用https去訪問，發(fā)現(xiàn)訪問成功了。

? ? ? ? 確認(rèn)了是權(quán)限問題后，在elasticsearch.yml里面把這兩個配置為false

? ? ? ? 再次訪問localhost:9200，成功！

參考博客?

jdk17安裝 elasticsearch8 遇到的一個坑

Elasticsearch showing received plaintext http traffic on an https channel in console - Stack Overflow

官方文檔文章來源地址http://www.zghlxwxcb.cn/news/detail-843593.html

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