From user-return-65136-archive-asf-public=cust-asf.ponee.io@cassandra.apache.org Thu Feb 6 04:56:06 2020 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [207.244.88.153]) by mx-eu-01.ponee.io (Postfix) with SMTP id 59BF018061A for ; Thu, 6 Feb 2020 05:56:06 +0100 (CET) Received: (qmail 47377 invoked by uid 500); 6 Feb 2020 04:54:41 -0000 Mailing-List: contact user-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@cassandra.apache.org Delivered-To: mailing list user@cassandra.apache.org Received: (qmail 47360 invoked by uid 99); 6 Feb 2020 04:54:41 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd4-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 06 Feb 2020 04:54:41 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd4-us-west.apache.org (ASF Mail Server at spamd4-us-west.apache.org) with ESMTP id 89181C00CF for ; Thu, 6 Feb 2020 04:54:40 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd4-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: 1.626 X-Spam-Level: * X-Spam-Status: No, score=1.626 tagged_above=-999 required=6.31 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HK_RANDOM_ENVFROM=0.626, HK_RANDOM_FROM=1, HTML_MESSAGE=0.2, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=disabled Authentication-Results: spamd4-us-west.apache.org (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mx1-he-de.apache.org ([10.40.0.8]) by localhost (spamd4-us-west.apache.org [10.40.0.11]) (amavisd-new, port 10024) with ESMTP id ARBkenqvtCDl for ; Thu, 6 Feb 2020 04:54:39 +0000 (UTC) Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=2a00:1450:4864:20::335; helo=mail-wm1-x335.google.com; envelope-from=flightctlr@gmail.com; receiver= Received: from mail-wm1-x335.google.com (mail-wm1-x335.google.com [IPv6:2a00:1450:4864:20::335]) by mx1-he-de.apache.org (ASF Mail Server at mx1-he-de.apache.org) with ESMTPS id B942F7DD70 for ; Thu, 6 Feb 2020 04:54:38 +0000 (UTC) Received: by mail-wm1-x335.google.com with SMTP id g1so4785032wmh.4 for ; Wed, 05 Feb 2020 20:54:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=RGRO86JUHHVh7QwQzaNsqvBEQ2tNHECwHuEtbToMykU=; b=Z46BDOJ3UxstOxIXuzHlg2Da7m1YuhOdrHwviJRPnYzMwIVx9d3IFISoCbA1EYZNIV Vwp8NCTuZ1CZITcevMaGuQKiVD6PUxnYwl8ZAfu+5iCJyB/HDbqF4Vt7sNv/zPb/+iRq trTYv4WP5OlwAb1IiC4Ku9mzRKvuQ/M0yk9OJdkCW+hKqtYkm6pAXLdOJmT3yfwxOmZS +GATXrb0qKfWElpkdzZQee5N9YPudyjsk5aToJEVn/zfPlp/5Gk8/4jyMz68Z/v1rppX G8bqhg2iD7FEI2m33zSEpn+0CdiwFMgNpmqpXEakP6rENmE3cR/Cm+3+aTCo1CmkAEUG PhJg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=RGRO86JUHHVh7QwQzaNsqvBEQ2tNHECwHuEtbToMykU=; b=rjOvM6VItujxrxM35O5rcQgDCf+X/pHkk8lvja+ps1d4tA17blZb7l5j8ABrg6qdzM iy03rJXl9EfrVdLeUorEUa5jlIqp6rl60lYMWGTj6yA31m/O/xXrbScfDr7UFveDB5Vy MeR+h1oWZ1CzRw03nOMaf5KUNr1LEuB/+f0yFkn+0v2fvIibt4/a7V2hSpZsT7uopFBa v97ZMrPMMm4avEMUkx8Yrl9fVc9VqQyXK312AT04fY4A+IJRC7jL9yJiDXVQKn2EKO2g 6Z7k4Tigg8DQEa+YoX0hkCOemuWZfq2+j3hhRlbi6B8M+hxbTRL/B0mu4AV2+c97Sktl 87XQ== X-Gm-Message-State: APjAAAUp2aDyUQAjmvZRxBeopikUyCl1YffjEP6dljARe2Pl+cetioBe udOelj0z+7fK9GlI0aJdZ1DPQkYWz4Cn/Shk5jv4RQCW X-Google-Smtp-Source: APXvYqxCQpgto1pZZCb+8VGcgaRWjyv5wZA6ruIR2zsitoGWmu/VVOwQbb8zfWEZRbl7YOHkjd2wrM0wtSFWZt/P8XU= X-Received: by 2002:a1c:1fd0:: with SMTP id f199mr1739061wmf.113.1580964877946; Wed, 05 Feb 2020 20:54:37 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Erick Ramirez Date: Thu, 6 Feb 2020 15:54:27 +1100 Message-ID: Subject: Re: Nodes becoming unresponsive To: user@cassandra.apache.org Content-Type: multipart/alternative; boundary="000000000000f3d1d3059de11152" --000000000000f3d1d3059de11152 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Surbhi, just a *friendly* reminder that it's customary to reply back to the mailing list instead of emailing me directly so that everyone else in the list can participate. =E2=98=BA > I tried taking thread dump using kill -3 but it just came back and > no file generated. > How do you take the thread dump? The Swiss Java Knife (SJK) which Jeff referenced previously is a nice utility for it: ... then yea, thread inspection is your next step. > https://github.com/aragozin/jvm-tools/blob/master/sjk-core/docs/TTOP.md , > for example. > >> --000000000000f3d1d3059de11152 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Surbhi, just a *friendly* reminder t= hat it's customary to reply back to the mailing list instead of emailin= g me directly so that everyone else in the list can participate.=C2=A0=E2= =98=BA
=C2=A0
I tried taking thread dump using kill -3 <pid> but it just came b= ack and no file generated.
How do you take the thread dump?
=

The Swiss Java Knife (SJK) which Jeff referenced previo= usly is a nice utility for it:

... then yea, thread inspection is your next step.=C2=A0=C2=A0https://github.com/aragozin/jvm-tools/blob/master/sjk-c= ore/docs/TTOP.md=C2=A0, for example.
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