Thanks. We had already implemented the registry fix. We will look to implement use try with resources.

Carl R Bondeson IT Analyst 3 Department of Public Health Operation & Support Services Information Technology Phone: 860-509-7434 Carl.Bondeson@ct.govmailto:Carl.Bondeson@ct.gov

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From: Christian Grün christian.gruen@gmail.com Sent: Wednesday, May 4, 2022 10:15 AM To: Bondeson, Carl Carl.Bondeson@ct.gov Cc: basex-talk@mailman.uni-konstanz.de Subject: Re: [basex-talk] Session issue

EXTERNAL EMAIL: This email originated from outside of the organization. Do not click any links or open any attachments unless you trust the sender and know the content is safe. Hi Carl,

Maybe you've seen that the ClientSession class implements the Closeable interface, so it's generally advisable to use a try-with-resources statement when creating new instances.

If that doesn't help, you could tweak your registry settings, as e.g. suggested in [1].

Best, Christian

[1] https://confluence.atlassian.com/confkb/no-buffer-space-available-maximum-co...https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fconfluence.atlassian.com%2Fconfkb%2Fno-buffer-space-available-maximum-connections-reached-due-to-ephemeral-port-exhaustion-956142091.html&data=05%7C01%7CCarl.Bondeson%40ct.gov%7Cf1c58efb00104c9b570608da2dd886c6%7C118b7cfaa3dd48b9b02631ff69bb738b%7C0%7C0%7C637872705242770080%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=XrzrBNM%2FKlDH%2F4UDfcaIWq0gm84DHYBhv%2Fnrd%2FJHYNI%3D&reserved=0

On Wed, May 4, 2022 at 4:04 PM Bondeson, Carl <Carl.Bondeson@ct.govmailto:Carl.Bondeson@ct.gov> wrote: We are seeing the following exception if we run under very heavy multi-thread conditions.

ERROR] 2022-05-04 08:49:41.345 [Thread-3012] - General Throwable occurred message: No buffer space available (maximum connections reached?): connect

Caused by this

// create BaseX session on singleton server mapperSession = new ClientSession(BaseXDictionary.BASEX_HOST, basexdict.baseXPort, basexdict.baseXUser, basexdict.baseXPass);

We are using XSLT and invoking Java methods to handle the things not easily managed in XSLT. Should we be closing sessions in Java classes or is this supposed to be handled by the JVM? This is running under Windows Server 2016 , deployed using JBoss 7.3.9, with 16 GB ram, and 4 cores.

Thanks

Carl R Bondeson IT Analyst 3 Department of Public Health Operation & Support Services Information Technology Phone: 860-509-7434 Carl.Bondeson@ct.govmailto:Carl.Bondeson@ct.gov

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